From patchwork Wed Aug 16 14:19:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355245 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96207C04A6A for ; Wed, 16 Aug 2023 14:20:29 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web10.162031.1692195624402310477 for ; Wed, 16 Aug 2023 07:20:24 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787646" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:23 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id EBE904210C24; Wed, 16 Aug 2023 23:20:21 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 01/31] regulator: dt-bindings: Add Renesas RAA215300 PMIC bindings Date: Wed, 16 Aug 2023 15:19:47 +0100 Message-Id: <20230816142017.147173-2-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:29 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12683 commit fff8f6b0723159f09eb2c067e626fb96402c0e53 upstream. Document Renesas RAA215300 PMIC bindings. The RAA215300 is a high Performance 9-Channel PMIC supporting DDR Memory, with Built-In Charger and RTC. It supports DDR3, DDR3L, DDR4, and LPDDR4 memory power requirements. The internally compensated regulators, built-in Real-Time Clock (RTC), 32kHz crystal oscillator, and coin cell battery charger provide a highly integrated, small footprint power solution ideal for System-On-Module (SOM) applications. A spread spectrum feature provides an ease-of-use solution for noise-sensitive audio or RF applications. Signed-off-by: Biju Das Reviewed-by: Conor Dooley Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/Message-Id: <20230623140948.384762-2-biju.das.jz@bp.renesas.com> Signed-off-by: Mark Brown Signed-off-by: Biju Das --- .../bindings/regulator/renesas,raa215300.yaml | 85 +++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/renesas,raa215300.yaml diff --git a/Documentation/devicetree/bindings/regulator/renesas,raa215300.yaml b/Documentation/devicetree/bindings/regulator/renesas,raa215300.yaml new file mode 100644 index 000000000000..97cff71d2967 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/renesas,raa215300.yaml @@ -0,0 +1,85 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/renesas,raa215300.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RAA215300 Power Management Integrated Circuit (PMIC) + +maintainers: + - Biju Das + +description: | + The RAA215300 is a high-performance, low-cost 9-channel PMIC designed for + 32-bit and 64-bit MCU and MPU applications. It supports DDR3, DDR3L, DDR4, + and LPDDR4 memory power requirements. The internally compensated regulators, + built-in Real-Time Clock (RTC), 32kHz crystal oscillator, and coin cell + battery charger provide a highly integrated, small footprint power solution + ideal for System-On-Module (SOM) applications. A spread spectrum feature + provides an ease-of-use solution for noise-sensitive audio or RF applications. + + This device exposes two devices via I2C. One for the integrated RTC IP, and + one for everything else. + + Link to datasheet: + https://www.renesas.com/in/en/products/power-power-management/multi-channel-power-management-ics-pmics/ssdsoc-power-management-ics-pmic-and-pmus/raa215300-high-performance-9-channel-pmic-supporting-ddr-memory-built-charger-and-rtc + +properties: + compatible: + enum: + - renesas,raa215300 + + reg: + maxItems: 2 + + reg-names: + items: + - const: main + - const: rtc + + interrupts: + maxItems: 1 + + clocks: + description: | + The clocks are optional. The RTC is disabled, if no clocks are + provided(either xin or clkin). + maxItems: 1 + + clock-names: + description: | + Use xin, if connected to an external crystal. + Use clkin, if connected to an external clock signal. + enum: + - xin + - clkin + +required: + - compatible + - reg + - reg-names + +additionalProperties: false + +examples: + - | + /* 32.768kHz crystal */ + x2: x2-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + raa215300: pmic@12 { + compatible = "renesas,raa215300"; + reg = <0x12>, <0x6f>; + reg-names = "main", "rtc"; + + clocks = <&x2>; + clock-names = "xin"; + }; + }; From patchwork Wed Aug 16 14:19:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355244 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 88C0CC04E69 for ; Wed, 16 Aug 2023 14:20:29 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web10.162031.1692195624402310477 for ; Wed, 16 Aug 2023 07:20:26 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787649" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:25 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 30A624210C24; Wed, 16 Aug 2023 23:20:23 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 02/31] regulator: Add Renesas PMIC RAA215300 driver Date: Wed, 16 Aug 2023 15:19:48 +0100 Message-Id: <20230816142017.147173-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:29 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12684 commit 7bce16630837c705f72e8fd53a11ae8c236236f4 upstream. The RAA215300 is a 9-channel PMIC that consists of * Internally compensated regulators * built-in Real Time Clock (RTC) * 32kHz crystal oscillator * coin cell battery charger The RTC on RAA215300 is similar to the IP found in the ISL1208. The existing driver for the ISL1208 works for this PMIC too, however the RAA215300 exposes two devices via I2C, one for the RTC IP, and one for everything else. The RTC IP has to be enabled by the other I2C device, therefore this driver is necessary to get the RTC to work. The external oscillator bit is inverted on PMIC version 0x11. Add PMIC RAA215300 driver for enabling RTC block and instantiating RTC device based on PMIC version. Signed-off-by: Biju Das Link: https://lore.kernel.org/r/Message-Id: <20230623140948.384762-3-biju.das.jz@bp.renesas.com> Signed-off-by: Mark Brown Signed-off-by: Biju Das --- drivers/regulator/Kconfig | 7 ++ drivers/regulator/Makefile | 1 + drivers/regulator/raa215300.c | 190 ++++++++++++++++++++++++++++++++++ 3 files changed, 198 insertions(+) create mode 100644 drivers/regulator/raa215300.c diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 020a00d6696b..62e4a2719f0f 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -883,6 +883,13 @@ config REGULATOR_QCOM_USB_VBUS Say M here if you want to include support for enabling the VBUS output as a module. The module will be named "qcom_usb_vbus_regulator". +config REGULATOR_RAA215300 + tristate "Renesas RAA215300 driver" + select REGMAP_I2C + depends on I2C + help + Support for the Renesas RAA215300 PMIC. + config REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY tristate "Raspberry Pi 7-inch touchscreen panel ATTINY regulator" depends on BACKLIGHT_CLASS_DEVICE diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 6ebae516258e..25513b52d7dc 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -109,6 +109,7 @@ obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o obj-$(CONFIG_REGULATOR_PBIAS) += pbias-regulator.o obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o +obj-$(CONFIG_REGULATOR_RAA215300) += raa215300.o obj-$(CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY) += rpi-panel-attiny-regulator.o obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o diff --git a/drivers/regulator/raa215300.c b/drivers/regulator/raa215300.c new file mode 100644 index 000000000000..24a1c89f5dbc --- /dev/null +++ b/drivers/regulator/raa215300.c @@ -0,0 +1,190 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Renesas RAA215300 PMIC driver +// +// Copyright (C) 2023 Renesas Electronics Corporation +// + +#include +#include +#include +#include +#include +#include +#include +#include + +#define RAA215300_FAULT_LATCHED_STATUS_1 0x59 +#define RAA215300_FAULT_LATCHED_STATUS_2 0x5a +#define RAA215300_FAULT_LATCHED_STATUS_3 0x5b +#define RAA215300_FAULT_LATCHED_STATUS_4 0x5c +#define RAA215300_FAULT_LATCHED_STATUS_6 0x5e + +#define RAA215300_INT_MASK_1 0x64 +#define RAA215300_INT_MASK_2 0x65 +#define RAA215300_INT_MASK_3 0x66 +#define RAA215300_INT_MASK_4 0x67 +#define RAA215300_INT_MASK_6 0x68 + +#define RAA215300_REG_BLOCK_EN 0x6c +#define RAA215300_HW_REV 0xf8 + +#define RAA215300_INT_MASK_1_ALL GENMASK(5, 0) +#define RAA215300_INT_MASK_2_ALL GENMASK(3, 0) +#define RAA215300_INT_MASK_3_ALL GENMASK(5, 0) +#define RAA215300_INT_MASK_4_ALL BIT(0) +#define RAA215300_INT_MASK_6_ALL GENMASK(7, 0) + +#define RAA215300_REG_BLOCK_EN_RTC_EN BIT(6) +#define RAA215300_RTC_DEFAULT_ADDR 0x6f + +const char *clkin_name = "clkin"; +const char *xin_name = "xin"; +static struct clk *clk; + +static const struct regmap_config raa215300_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, +}; + +static void raa215300_rtc_unregister_device(void *data) +{ + i2c_unregister_device(data); + if (!clk) { + clk_unregister_fixed_rate(clk); + clk = NULL; + } +} + +static int raa215300_clk_present(struct i2c_client *client, const char *name) +{ + struct clk *clk; + + clk = devm_clk_get_optional(&client->dev, name); + if (IS_ERR(clk)) + return PTR_ERR(clk); + + return !!clk; +} + +static int raa215300_i2c_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + const char *clk_name = xin_name; + unsigned int pmic_version, val; + struct regmap *regmap; + int ret; + + regmap = devm_regmap_init_i2c(client, &raa215300_regmap_config); + if (IS_ERR(regmap)) + return dev_err_probe(dev, PTR_ERR(regmap), + "regmap i2c init failed\n"); + + ret = regmap_read(regmap, RAA215300_HW_REV, &pmic_version); + if (ret < 0) + return dev_err_probe(dev, ret, "HW rev read failed\n"); + + dev_dbg(dev, "RAA215300 PMIC version 0x%04x\n", pmic_version); + + /* Clear all blocks except RTC, if enabled */ + regmap_read(regmap, RAA215300_REG_BLOCK_EN, &val); + val &= RAA215300_REG_BLOCK_EN_RTC_EN; + regmap_write(regmap, RAA215300_REG_BLOCK_EN, val); + + /*Clear the latched registers */ + regmap_read(regmap, RAA215300_FAULT_LATCHED_STATUS_1, &val); + regmap_write(regmap, RAA215300_FAULT_LATCHED_STATUS_1, val); + regmap_read(regmap, RAA215300_FAULT_LATCHED_STATUS_2, &val); + regmap_write(regmap, RAA215300_FAULT_LATCHED_STATUS_2, val); + regmap_read(regmap, RAA215300_FAULT_LATCHED_STATUS_3, &val); + regmap_write(regmap, RAA215300_FAULT_LATCHED_STATUS_3, val); + regmap_read(regmap, RAA215300_FAULT_LATCHED_STATUS_4, &val); + regmap_write(regmap, RAA215300_FAULT_LATCHED_STATUS_4, val); + regmap_read(regmap, RAA215300_FAULT_LATCHED_STATUS_6, &val); + regmap_write(regmap, RAA215300_FAULT_LATCHED_STATUS_6, val); + + /* Mask all the PMIC interrupts */ + regmap_write(regmap, RAA215300_INT_MASK_1, RAA215300_INT_MASK_1_ALL); + regmap_write(regmap, RAA215300_INT_MASK_2, RAA215300_INT_MASK_2_ALL); + regmap_write(regmap, RAA215300_INT_MASK_3, RAA215300_INT_MASK_3_ALL); + regmap_write(regmap, RAA215300_INT_MASK_4, RAA215300_INT_MASK_4_ALL); + regmap_write(regmap, RAA215300_INT_MASK_6, RAA215300_INT_MASK_6_ALL); + + ret = raa215300_clk_present(client, xin_name); + if (ret < 0) { + return ret; + } else if (!ret) { + ret = raa215300_clk_present(client, clkin_name); + if (ret < 0) + return ret; + + clk_name = clkin_name; + } + + if (ret) { + char *name = pmic_version >= 0x12 ? "isl1208" : "raa215300_a0"; + struct device_node *np = client->dev.of_node; + u32 addr = RAA215300_RTC_DEFAULT_ADDR; + struct i2c_board_info info = {}; + struct i2c_client *rtc_client; + ssize_t size; + + clk = clk_register_fixed_rate(NULL, clk_name, NULL, 0, 32000); + clk_register_clkdev(clk, clk_name, NULL); + + if (np) { + int i; + + i = of_property_match_string(np, "reg-names", "rtc"); + if (i >= 0) + of_property_read_u32_index(np, "reg", i, &addr); + } + + info.addr = addr; + if (client->irq > 0) + info.irq = client->irq; + + size = strscpy(info.type, name, sizeof(info.type)); + if (size < 0) + return dev_err_probe(dev, size, + "Invalid device name: %s\n", name); + + /* Enable RTC block */ + regmap_update_bits(regmap, RAA215300_REG_BLOCK_EN, + RAA215300_REG_BLOCK_EN_RTC_EN, + RAA215300_REG_BLOCK_EN_RTC_EN); + + rtc_client = i2c_new_client_device(client->adapter, &info); + if (IS_ERR(rtc_client)) + return PTR_ERR(rtc_client); + + ret = devm_add_action_or_reset(dev, + raa215300_rtc_unregister_device, + rtc_client); + if (ret < 0) + return ret; + } + + return 0; +} + +static const struct of_device_id raa215300_dt_match[] = { + { .compatible = "renesas,raa215300" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, raa215300_dt_match); + +static struct i2c_driver raa215300_i2c_driver = { + .driver = { + .name = "raa215300", + .of_match_table = raa215300_dt_match, + }, + .probe_new = raa215300_i2c_probe, +}; +module_i2c_driver(raa215300_i2c_driver); + +MODULE_DESCRIPTION("Renesas RAA215300 PMIC driver"); +MODULE_AUTHOR("Fabrizio Castro "); +MODULE_AUTHOR("Biju Das "); +MODULE_LICENSE("GPL"); From patchwork Wed Aug 16 14:19:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355243 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87CD2C001E0 for ; Wed, 16 Aug 2023 14:20:29 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web10.162031.1692195624402310477 for ; Wed, 16 Aug 2023 07:20:28 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787655" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:28 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 71B3D4210C25; Wed, 16 Aug 2023 23:20:26 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 03/31] regulator: raa215300: Add build dependency with COMMON_CLK Date: Wed, 16 Aug 2023 15:19:49 +0100 Message-Id: <20230816142017.147173-4-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:29 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12685 commit e9bd04e52d649c3cfd713b594c5db35cab03c42b upstream. The COMMON_CLK config is not enabled in some of the architectures. This causes build issues. Fix these issues by adding build dependency. ERROR: modpost: "clk_unregister_fixed_rate" [drivers/regulator/raa215300.ko] undefined! ERROR: modpost: "clk_register_fixed_rate" [drivers/regulator/raa215300.ko] undefined! Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202306282012.sPQAuAN7-lkp@intel.com/ Signed-off-by: Biju Das Link: https://lore.kernel.org/r/20230628174004.63984-1-biju.das.jz@bp.renesas.com Reviewed-by: Geert Uytterhoeven Signed-off-by: Mark Brown Signed-off-by: Biju Das --- drivers/regulator/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 62e4a2719f0f..8bc423c1debe 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -886,6 +886,7 @@ config REGULATOR_QCOM_USB_VBUS config REGULATOR_RAA215300 tristate "Renesas RAA215300 driver" select REGMAP_I2C + depends on COMMON_CLK depends on I2C help Support for the Renesas RAA215300 PMIC. From patchwork Wed Aug 16 14:19:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355249 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7101EC41513 for ; Wed, 16 Aug 2023 14:20:39 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web11.161739.1692195631560341227 for ; Wed, 16 Aug 2023 07:20:31 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100187" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:30 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id AF23F4210C25; Wed, 16 Aug 2023 23:20:28 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 04/31] Documentation: list RTC devres helpers in devres.rst Date: Wed, 16 Aug 2023 15:19:50 +0100 Message-Id: <20230816142017.147173-5-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:39 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12686 From: Bartosz Golaszewski commit 4d49ffc7a20dd0b05efb82fbf5b52d7aa57e9f4b upstream. It's customary to list all devres helpers in devres.rst. Add missing RTC routines. Signed-off-by: Bartosz Golaszewski Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201109163409.24301-4-brgl@bgdev.pl Signed-off-by: Biju Das --- Documentation/driver-api/driver-model/devres.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst index bb676570acc3..6ffc0f07404f 100644 --- a/Documentation/driver-api/driver-model/devres.rst +++ b/Documentation/driver-api/driver-model/devres.rst @@ -411,6 +411,10 @@ RESET devm_reset_control_get() devm_reset_controller_register() +RTC + devm_rtc_device_register() + devm_rtc_allocate_device() + SERDEV devm_serdev_device_open() From patchwork Wed Aug 16 14:19:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355248 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76BE5C04E69 for ; Wed, 16 Aug 2023 14:20:39 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web11.161739.1692195631560341227 for ; Wed, 16 Aug 2023 07:20:33 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100191" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:32 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 3CCB14210C24; Wed, 16 Aug 2023 23:20:30 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 05/31] rtc: nvmem: remove nvram ABI Date: Wed, 16 Aug 2023 15:19:51 +0100 Message-Id: <20230816142017.147173-6-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:39 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12687 From: Alexandre Belloni commit 25ece30561d247b2931b0d11d92e9c976a668771 upstream. The nvram sysfs attributes have been deprecated at least since v4.13, more than 3 years ago and nobody ever complained about the deprecation warning. Remove the sysfs attributes now. [Bartosz: remove the declaration of rtc_nvmem_unregister()] Signed-off-by: Alexandre Belloni Signed-off-by: Bartosz Golaszewski Link: https://lore.kernel.org/r/20201109163409.24301-5-brgl@bgdev.pl Signed-off-by: Biju Das --- drivers/rtc/class.c | 2 - drivers/rtc/nvmem.c | 82 +------------------------------------- drivers/rtc/rtc-cmos.c | 1 - drivers/rtc/rtc-ds1305.c | 1 - drivers/rtc/rtc-ds1307.c | 1 - drivers/rtc/rtc-ds1343.c | 1 - drivers/rtc/rtc-ds1511.c | 2 - drivers/rtc/rtc-ds1553.c | 1 - drivers/rtc/rtc-ds1685.c | 1 - drivers/rtc/rtc-ds1742.c | 1 - drivers/rtc/rtc-m48t59.c | 1 - drivers/rtc/rtc-m48t86.c | 1 - drivers/rtc/rtc-rp5c01.c | 1 - drivers/rtc/rtc-rv8803.c | 1 - drivers/rtc/rtc-stk17ta8.c | 1 - drivers/rtc/rtc-tx4939.c | 1 - include/linux/rtc.h | 6 --- 17 files changed, 1 insertion(+), 104 deletions(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 625effe6cb65..31c5aa28c00c 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -348,8 +348,6 @@ static void devm_rtc_release_device(struct device *dev, void *res) { struct rtc_device *rtc = *(struct rtc_device **)res; - rtc_nvmem_unregister(rtc); - if (rtc->registered) rtc_device_unregister(rtc); else diff --git a/drivers/rtc/nvmem.c b/drivers/rtc/nvmem.c index 4312096c7738..5e0b178a3b65 100644 --- a/drivers/rtc/nvmem.c +++ b/drivers/rtc/nvmem.c @@ -9,74 +9,7 @@ #include #include #include -#include -#include -/* - * Deprecated ABI compatibility, this should be removed at some point - */ - -static const char nvram_warning[] = "Deprecated ABI, please use nvmem"; - -static ssize_t -rtc_nvram_read(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t off, size_t count) -{ - dev_warn_once(kobj_to_dev(kobj), nvram_warning); - - return nvmem_device_read(attr->private, off, count, buf); -} - -static ssize_t -rtc_nvram_write(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t off, size_t count) -{ - dev_warn_once(kobj_to_dev(kobj), nvram_warning); - - return nvmem_device_write(attr->private, off, count, buf); -} - -static int rtc_nvram_register(struct rtc_device *rtc, - struct nvmem_device *nvmem, size_t size) -{ - int err; - - rtc->nvram = kzalloc(sizeof(*rtc->nvram), GFP_KERNEL); - if (!rtc->nvram) - return -ENOMEM; - - rtc->nvram->attr.name = "nvram"; - rtc->nvram->attr.mode = 0644; - rtc->nvram->private = nvmem; - - sysfs_bin_attr_init(rtc->nvram); - - rtc->nvram->read = rtc_nvram_read; - rtc->nvram->write = rtc_nvram_write; - rtc->nvram->size = size; - - err = sysfs_create_bin_file(&rtc->dev.parent->kobj, - rtc->nvram); - if (err) { - kfree(rtc->nvram); - rtc->nvram = NULL; - } - - return err; -} - -static void rtc_nvram_unregister(struct rtc_device *rtc) -{ - sysfs_remove_bin_file(&rtc->dev.parent->kobj, rtc->nvram); - kfree(rtc->nvram); - rtc->nvram = NULL; -} - -/* - * New ABI, uses nvmem - */ int rtc_nvmem_register(struct rtc_device *rtc, struct nvmem_config *nvmem_config) { @@ -88,20 +21,7 @@ int rtc_nvmem_register(struct rtc_device *rtc, nvmem_config->dev = rtc->dev.parent; nvmem_config->owner = rtc->owner; nvmem = devm_nvmem_register(rtc->dev.parent, nvmem_config); - if (IS_ERR(nvmem)) - return PTR_ERR(nvmem); - - /* Register the old ABI */ - if (rtc->nvram_old_abi) - rtc_nvram_register(rtc, nvmem, nvmem_config->size); - return 0; + return PTR_ERR_OR_ZERO(nvmem); } EXPORT_SYMBOL_GPL(rtc_nvmem_register); - -void rtc_nvmem_unregister(struct rtc_device *rtc) -{ - /* unregister the old ABI */ - if (rtc->nvram) - rtc_nvram_unregister(rtc); -} diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index 7f560937bf7c..74e21341e373 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -1093,7 +1093,6 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq) cmos_rtc.rtc->ops = &cmos_rtc_ops_no_alarm; } - cmos_rtc.rtc->nvram_old_abi = true; retval = rtc_register_device(cmos_rtc.rtc); if (retval) goto cleanup2; diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index a3d790889eea..a1ed539d41b4 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -694,7 +694,6 @@ static int ds1305_probe(struct spi_device *spi) ds1305->rtc->range_max = RTC_TIMESTAMP_END_2099; ds1305_nvmem_cfg.priv = ds1305; - ds1305->rtc->nvram_old_abi = true; status = rtc_register_device(ds1305->rtc); if (status) return status; diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 07a9cc91671b..295fcf73b746 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -2055,7 +2055,6 @@ static int ds1307_probe(struct i2c_client *client, .priv = ds1307, }; - ds1307->rtc->nvram_old_abi = true; rtc_nvmem_register(ds1307->rtc, &nvmem_cfg); } diff --git a/drivers/rtc/rtc-ds1343.c b/drivers/rtc/rtc-ds1343.c index ba143423875b..e7604e844cbd 100644 --- a/drivers/rtc/rtc-ds1343.c +++ b/drivers/rtc/rtc-ds1343.c @@ -399,7 +399,6 @@ static int ds1343_probe(struct spi_device *spi) if (IS_ERR(priv->rtc)) return PTR_ERR(priv->rtc); - priv->rtc->nvram_old_abi = true; priv->rtc->ops = &ds1343_rtc_ops; priv->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; priv->rtc->range_max = RTC_TIMESTAMP_END_2099; diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index a63872c4c76d..33c483d759c8 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -466,8 +466,6 @@ static int ds1511_rtc_probe(struct platform_device *pdev) pdata->rtc->ops = &ds1511_rtc_ops; - pdata->rtc->nvram_old_abi = true; - ret = rtc_register_device(pdata->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c index cdf5e05b9489..c6a5563504e5 100644 --- a/drivers/rtc/rtc-ds1553.c +++ b/drivers/rtc/rtc-ds1553.c @@ -294,7 +294,6 @@ static int ds1553_rtc_probe(struct platform_device *pdev) return PTR_ERR(pdata->rtc); pdata->rtc->ops = &ds1553_rtc_ops; - pdata->rtc->nvram_old_abi = true; ret = rtc_register_device(pdata->rtc); if (ret) diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index dfbd7b88b2b9..9043c96e8845 100644 --- a/drivers/rtc/rtc-ds1685.c +++ b/drivers/rtc/rtc-ds1685.c @@ -1316,7 +1316,6 @@ ds1685_rtc_probe(struct platform_device *pdev) if (ret) return ret; - rtc_dev->nvram_old_abi = true; nvmem_cfg.priv = rtc; ret = rtc_nvmem_register(rtc_dev, &nvmem_cfg); if (ret) diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c index 2b949f0dbaa9..291bbed90ef8 100644 --- a/drivers/rtc/rtc-ds1742.c +++ b/drivers/rtc/rtc-ds1742.c @@ -190,7 +190,6 @@ static int ds1742_rtc_probe(struct platform_device *pdev) return PTR_ERR(rtc); rtc->ops = &ds1742_rtc_ops; - rtc->nvram_old_abi = true; ret = rtc_register_device(rtc); if (ret) diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c index 67e218758a8b..ee1d8f0146fd 100644 --- a/drivers/rtc/rtc-m48t59.c +++ b/drivers/rtc/rtc-m48t59.c @@ -463,7 +463,6 @@ static int m48t59_rtc_probe(struct platform_device *pdev) if (IS_ERR(m48t59->rtc)) return PTR_ERR(m48t59->rtc); - m48t59->rtc->nvram_old_abi = true; m48t59->rtc->ops = ops; nvmem_cfg.size = pdata->offset; diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c index 75a0e73071d8..2b1135590dd5 100644 --- a/drivers/rtc/rtc-m48t86.c +++ b/drivers/rtc/rtc-m48t86.c @@ -254,7 +254,6 @@ static int m48t86_rtc_probe(struct platform_device *pdev) return PTR_ERR(info->rtc); info->rtc->ops = &m48t86_rtc_ops; - info->rtc->nvram_old_abi = true; err = rtc_register_device(info->rtc); if (err) diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index 8776eadbdd3a..a69e8adcc4a1 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -251,7 +251,6 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) return PTR_ERR(rtc); rtc->ops = &rp5c01_rtc_ops; - rtc->nvram_old_abi = true; priv->rtc = rtc; diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c index c6d8e3425688..1d888da48c7c 100644 --- a/drivers/rtc/rtc-rv8803.c +++ b/drivers/rtc/rtc-rv8803.c @@ -585,7 +585,6 @@ static int rv8803_probe(struct i2c_client *client, } rv8803->rtc->ops = &rv8803_rtc_ops; - rv8803->rtc->nvram_old_abi = true; rv8803->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; rv8803->rtc->range_max = RTC_TIMESTAMP_END_2099; err = rtc_register_device(rv8803->rtc); diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c index 01a45044f468..1ccf0d5d05b4 100644 --- a/drivers/rtc/rtc-stk17ta8.c +++ b/drivers/rtc/rtc-stk17ta8.c @@ -311,7 +311,6 @@ static int stk17ta8_rtc_probe(struct platform_device *pdev) return PTR_ERR(pdata->rtc); pdata->rtc->ops = &stk17ta8_rtc_ops; - pdata->rtc->nvram_old_abi = true; nvmem_cfg.priv = pdata; ret = rtc_nvmem_register(pdata->rtc, &nvmem_cfg); diff --git a/drivers/rtc/rtc-tx4939.c b/drivers/rtc/rtc-tx4939.c index 715b82981279..abbb62b14d7a 100644 --- a/drivers/rtc/rtc-tx4939.c +++ b/drivers/rtc/rtc-tx4939.c @@ -266,7 +266,6 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev) return PTR_ERR(rtc); rtc->ops = &tx4939_rtc_ops; - rtc->nvram_old_abi = true; rtc->range_max = U32_MAX; pdata->rtc = rtc; diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 22d1575e4991..0983ab9faffb 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -120,10 +120,6 @@ struct rtc_device { bool registered; - /* Old ABI support */ - bool nvram_old_abi; - struct bin_attribute *nvram; - time64_t range_min; timeu64_t range_max; time64_t start_secs; @@ -250,14 +246,12 @@ extern int rtc_hctosys_ret; #ifdef CONFIG_RTC_NVMEM int rtc_nvmem_register(struct rtc_device *rtc, struct nvmem_config *nvmem_config); -void rtc_nvmem_unregister(struct rtc_device *rtc); #else static inline int rtc_nvmem_register(struct rtc_device *rtc, struct nvmem_config *nvmem_config) { return 0; } -static inline void rtc_nvmem_unregister(struct rtc_device *rtc) {} #endif #ifdef CONFIG_RTC_INTF_SYSFS From patchwork Wed Aug 16 14:19:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355247 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 694B4C001E0 for ; Wed, 16 Aug 2023 14:20:39 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161745.1692195636868099658 for ; Wed, 16 Aug 2023 07:20:37 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787663" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:36 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 7A0804210C24; Wed, 16 Aug 2023 23:20:33 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 06/31] rtc: rv3032: fix nvram nvmem priv pointer Date: Wed, 16 Aug 2023 15:19:52 +0100 Message-Id: <20230816142017.147173-7-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:39 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12688 From: Alexandre Belloni commit 767fbb7102c69bedb8dca5a877c4eae4bbf8cf9b upstream. The nvmem priv pointer is set to rv3032 but the rv3032_nvram_write and rv3032_nvram_read expect the regmap pointer. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201108223710.1574331-1-alexandre.belloni@bootlin.com Signed-off-by: Biju Das --- drivers/rtc/rtc-rv3032.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-rv3032.c b/drivers/rtc/rtc-rv3032.c index 9e6166864bd7..e7b343a7ef02 100644 --- a/drivers/rtc/rtc-rv3032.c +++ b/drivers/rtc/rtc-rv3032.c @@ -889,7 +889,7 @@ static int rv3032_probe(struct i2c_client *client) if (ret) return ret; - nvmem_cfg.priv = rv3032; + nvmem_cfg.priv = rv3032->regmap; rtc_nvmem_register(rv3032->rtc, &nvmem_cfg); eeprom_cfg.priv = rv3032; rtc_nvmem_register(rv3032->rtc, &eeprom_cfg); From patchwork Wed Aug 16 14:19:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355252 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 79F85C04E69 for ; Wed, 16 Aug 2023 14:20:49 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161745.1692195636868099658 for ; Wed, 16 Aug 2023 07:20:40 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787666" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:39 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id B63794210C25; Wed, 16 Aug 2023 23:20:36 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 07/31] rtc: add devm_ prefix to rtc_nvmem_register() Date: Wed, 16 Aug 2023 15:19:53 +0100 Message-Id: <20230816142017.147173-8-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:49 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12689 From: Bartosz Golaszewski commit 3a905c2d9544a418953d6c18668f0f853fbd9be9 upstream. rtc_nvmem_register() is a managed interface. It doesn't require any release function to be called at driver detach. To avoid confusing driver authors, let's rename it to devm_rtc_nvmem_register() and add it to the list of managed interfaces in Documentation/. Signed-off-by: Bartosz Golaszewski Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201109163409.24301-6-brgl@bgdev.pl Signed-off-by: Biju Das --- Documentation/driver-api/driver-model/devres.rst | 1 + drivers/rtc/nvmem.c | 4 ++-- drivers/rtc/rtc-cmos.c | 2 +- drivers/rtc/rtc-ds1305.c | 2 +- drivers/rtc/rtc-ds1307.c | 2 +- drivers/rtc/rtc-ds1343.c | 2 +- drivers/rtc/rtc-ds1511.c | 2 +- drivers/rtc/rtc-ds1553.c | 2 +- drivers/rtc/rtc-ds1685.c | 2 +- drivers/rtc/rtc-ds1742.c | 2 +- drivers/rtc/rtc-ds3232.c | 2 +- drivers/rtc/rtc-isl12026.c | 2 +- drivers/rtc/rtc-isl1208.c | 2 +- drivers/rtc/rtc-m48t59.c | 2 +- drivers/rtc/rtc-m48t86.c | 2 +- drivers/rtc/rtc-meson.c | 2 +- drivers/rtc/rtc-omap.c | 2 +- drivers/rtc/rtc-pcf2127.c | 2 +- drivers/rtc/rtc-pcf85063.c | 2 +- drivers/rtc/rtc-pcf85363.c | 2 +- drivers/rtc/rtc-rp5c01.c | 2 +- drivers/rtc/rtc-rv3028.c | 4 ++-- drivers/rtc/rtc-rv3029c2.c | 2 +- drivers/rtc/rtc-rv3032.c | 4 ++-- drivers/rtc/rtc-rv8803.c | 2 +- drivers/rtc/rtc-rx8581.c | 2 +- drivers/rtc/rtc-stk17ta8.c | 2 +- drivers/rtc/rtc-tx4939.c | 2 +- include/linux/rtc.h | 8 ++++---- 29 files changed, 35 insertions(+), 34 deletions(-) diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst index 6ffc0f07404f..5df7ba54a4ba 100644 --- a/Documentation/driver-api/driver-model/devres.rst +++ b/Documentation/driver-api/driver-model/devres.rst @@ -414,6 +414,7 @@ RESET RTC devm_rtc_device_register() devm_rtc_allocate_device() + devm_rtc_nvmem_register() SERDEV devm_serdev_device_open() diff --git a/drivers/rtc/nvmem.c b/drivers/rtc/nvmem.c index 5e0b178a3b65..7502deb6390e 100644 --- a/drivers/rtc/nvmem.c +++ b/drivers/rtc/nvmem.c @@ -10,7 +10,7 @@ #include #include -int rtc_nvmem_register(struct rtc_device *rtc, +int devm_rtc_nvmem_register(struct rtc_device *rtc, struct nvmem_config *nvmem_config) { struct nvmem_device *nvmem; @@ -24,4 +24,4 @@ int rtc_nvmem_register(struct rtc_device *rtc, return PTR_ERR_OR_ZERO(nvmem); } -EXPORT_SYMBOL_GPL(rtc_nvmem_register); +EXPORT_SYMBOL_GPL(devm_rtc_nvmem_register); diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index 74e21341e373..6b237943ee31 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -1099,7 +1099,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq) /* export at least the first block of NVRAM */ nvmem_cfg.size = address_space - NVRAM_OFFSET; - if (rtc_nvmem_register(cmos_rtc.rtc, &nvmem_cfg)) + if (devm_rtc_nvmem_register(cmos_rtc.rtc, &nvmem_cfg)) dev_err(dev, "nvmem registration failed\n"); /* diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index a1ed539d41b4..a4e768261b43 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -698,7 +698,7 @@ static int ds1305_probe(struct spi_device *spi) if (status) return status; - rtc_nvmem_register(ds1305->rtc, &ds1305_nvmem_cfg); + devm_rtc_nvmem_register(ds1305->rtc, &ds1305_nvmem_cfg); /* Maybe set up alarm IRQ; be ready to handle it triggering right * away. NOTE that we don't share this. The signal is active low, diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 295fcf73b746..eb24aaf110a9 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -2055,7 +2055,7 @@ static int ds1307_probe(struct i2c_client *client, .priv = ds1307, }; - rtc_nvmem_register(ds1307->rtc, &nvmem_cfg); + devm_rtc_nvmem_register(ds1307->rtc, &nvmem_cfg); } ds1307_hwmon_register(ds1307); diff --git a/drivers/rtc/rtc-ds1343.c b/drivers/rtc/rtc-ds1343.c index e7604e844cbd..ea663e24a34c 100644 --- a/drivers/rtc/rtc-ds1343.c +++ b/drivers/rtc/rtc-ds1343.c @@ -413,7 +413,7 @@ static int ds1343_probe(struct spi_device *spi) return res; nvmem_cfg.priv = priv; - rtc_nvmem_register(priv->rtc, &nvmem_cfg); + devm_rtc_nvmem_register(priv->rtc, &nvmem_cfg); priv->irq = spi->irq; diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index 33c483d759c8..d5f48216e851 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -470,7 +470,7 @@ static int ds1511_rtc_probe(struct platform_device *pdev) if (ret) return ret; - rtc_nvmem_register(pdata->rtc, &ds1511_nvmem_cfg); + devm_rtc_nvmem_register(pdata->rtc, &ds1511_nvmem_cfg); /* * if the platform has an interrupt in mind for this device, diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c index c6a5563504e5..2d2eb739d92b 100644 --- a/drivers/rtc/rtc-ds1553.c +++ b/drivers/rtc/rtc-ds1553.c @@ -309,7 +309,7 @@ static int ds1553_rtc_probe(struct platform_device *pdev) } } - if (rtc_nvmem_register(pdata->rtc, &nvmem_cfg)) + if (devm_rtc_nvmem_register(pdata->rtc, &nvmem_cfg)) dev_err(&pdev->dev, "unable to register nvmem\n"); return 0; diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index 9043c96e8845..bef588fce266 100644 --- a/drivers/rtc/rtc-ds1685.c +++ b/drivers/rtc/rtc-ds1685.c @@ -1317,7 +1317,7 @@ ds1685_rtc_probe(struct platform_device *pdev) return ret; nvmem_cfg.priv = rtc; - ret = rtc_nvmem_register(rtc_dev, &nvmem_cfg); + ret = devm_rtc_nvmem_register(rtc_dev, &nvmem_cfg); if (ret) return ret; diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c index 291bbed90ef8..29792a8cce97 100644 --- a/drivers/rtc/rtc-ds1742.c +++ b/drivers/rtc/rtc-ds1742.c @@ -195,7 +195,7 @@ static int ds1742_rtc_probe(struct platform_device *pdev) if (ret) return ret; - if (rtc_nvmem_register(rtc, &nvmem_cfg)) + if (devm_rtc_nvmem_register(rtc, &nvmem_cfg)) dev_err(&pdev->dev, "Unable to register nvmem\n"); return 0; diff --git a/drivers/rtc/rtc-ds3232.c b/drivers/rtc/rtc-ds3232.c index 69c37ab64352..16b89035d135 100644 --- a/drivers/rtc/rtc-ds3232.c +++ b/drivers/rtc/rtc-ds3232.c @@ -518,7 +518,7 @@ static int ds3232_probe(struct device *dev, struct regmap *regmap, int irq, if (IS_ERR(ds3232->rtc)) return PTR_ERR(ds3232->rtc); - ret = rtc_nvmem_register(ds3232->rtc, &nvmem_cfg); + ret = devm_rtc_nvmem_register(ds3232->rtc, &nvmem_cfg); if(ret) return ret; diff --git a/drivers/rtc/rtc-isl12026.c b/drivers/rtc/rtc-isl12026.c index 5b6b17fb6d62..fff8d8253669 100644 --- a/drivers/rtc/rtc-isl12026.c +++ b/drivers/rtc/rtc-isl12026.c @@ -465,7 +465,7 @@ static int isl12026_probe_new(struct i2c_client *client) priv->rtc->ops = &isl12026_rtc_ops; nvm_cfg.priv = priv; - ret = rtc_nvmem_register(priv->rtc, &nvm_cfg); + ret = devm_rtc_nvmem_register(priv->rtc, &nvm_cfg); if (ret) return ret; diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index ebb691fa48a6..08d778b10e9e 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -890,7 +890,7 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) if (rc) return rc; - rc = rtc_nvmem_register(isl1208->rtc, &isl1208->nvmem_config); + rc = devm_rtc_nvmem_register(isl1208->rtc, &isl1208->nvmem_config); if (rc) return rc; diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c index ee1d8f0146fd..e966a66ab2d3 100644 --- a/drivers/rtc/rtc-m48t59.c +++ b/drivers/rtc/rtc-m48t59.c @@ -466,7 +466,7 @@ static int m48t59_rtc_probe(struct platform_device *pdev) m48t59->rtc->ops = ops; nvmem_cfg.size = pdata->offset; - ret = rtc_nvmem_register(m48t59->rtc, &nvmem_cfg); + ret = devm_rtc_nvmem_register(m48t59->rtc, &nvmem_cfg); if (ret) return ret; diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c index 2b1135590dd5..182cfe59e4e0 100644 --- a/drivers/rtc/rtc-m48t86.c +++ b/drivers/rtc/rtc-m48t86.c @@ -259,7 +259,7 @@ static int m48t86_rtc_probe(struct platform_device *pdev) if (err) return err; - rtc_nvmem_register(info->rtc, &m48t86_nvmem_cfg); + devm_rtc_nvmem_register(info->rtc, &m48t86_nvmem_cfg); /* read battery status */ reg = m48t86_readb(&pdev->dev, M48T86_D); diff --git a/drivers/rtc/rtc-meson.c b/drivers/rtc/rtc-meson.c index 47ebcf834cc2..938267713a4d 100644 --- a/drivers/rtc/rtc-meson.c +++ b/drivers/rtc/rtc-meson.c @@ -365,7 +365,7 @@ static int meson_rtc_probe(struct platform_device *pdev) } meson_rtc_nvmem_config.priv = rtc; - ret = rtc_nvmem_register(rtc->rtc, &meson_rtc_nvmem_config); + ret = devm_rtc_nvmem_register(rtc->rtc, &meson_rtc_nvmem_config); if (ret) goto out_disable_vdd; diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index 18ae2a4f26ea..d165367a152c 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -891,7 +891,7 @@ static int omap_rtc_probe(struct platform_device *pdev) if (ret) goto err_deregister_pinctrl; - rtc_nvmem_register(rtc->rtc, &omap_rtc_nvmem_config); + devm_rtc_nvmem_register(rtc->rtc, &omap_rtc_nvmem_config); if (rtc->is_pmic_controller) { if (!pm_power_off) { diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index 715513311ece..cb6bd7cae927 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -610,7 +610,7 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, .size = 512, }; - ret = rtc_nvmem_register(pcf2127->rtc, &nvmem_cfg); + ret = devm_rtc_nvmem_register(pcf2127->rtc, &nvmem_cfg); } /* diff --git a/drivers/rtc/rtc-pcf85063.c b/drivers/rtc/rtc-pcf85063.c index 449204d84c61..ad07ef654f6b 100644 --- a/drivers/rtc/rtc-pcf85063.c +++ b/drivers/rtc/rtc-pcf85063.c @@ -606,7 +606,7 @@ static int pcf85063_probe(struct i2c_client *client) } nvmem_cfg.priv = pcf85063->regmap; - rtc_nvmem_register(pcf85063->rtc, &nvmem_cfg); + devm_rtc_nvmem_register(pcf85063->rtc, &nvmem_cfg); #ifdef CONFIG_COMMON_CLK /* register clk in common clk framework */ diff --git a/drivers/rtc/rtc-pcf85363.c b/drivers/rtc/rtc-pcf85363.c index 3450d615974d..23cf14ca2c96 100644 --- a/drivers/rtc/rtc-pcf85363.c +++ b/drivers/rtc/rtc-pcf85363.c @@ -422,7 +422,7 @@ static int pcf85363_probe(struct i2c_client *client, for (i = 0; i < config->num_nvram; i++) { nvmem_cfg[i].priv = pcf85363; - rtc_nvmem_register(pcf85363->rtc, &nvmem_cfg[i]); + devm_rtc_nvmem_register(pcf85363->rtc, &nvmem_cfg[i]); } return ret; diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index a69e8adcc4a1..8bc476c0905f 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -255,7 +255,7 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) priv->rtc = rtc; nvmem_cfg.priv = priv; - error = rtc_nvmem_register(rtc, &nvmem_cfg); + error = devm_rtc_nvmem_register(rtc, &nvmem_cfg); if (error) return error; diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c index fa226f0fe67d..f788df979750 100644 --- a/drivers/rtc/rtc-rv3028.c +++ b/drivers/rtc/rtc-rv3028.c @@ -891,9 +891,9 @@ static int rv3028_probe(struct i2c_client *client) return ret; nvmem_cfg.priv = rv3028->regmap; - rtc_nvmem_register(rv3028->rtc, &nvmem_cfg); + devm_rtc_nvmem_register(rv3028->rtc, &nvmem_cfg); eeprom_cfg.priv = rv3028; - rtc_nvmem_register(rv3028->rtc, &eeprom_cfg); + devm_rtc_nvmem_register(rv3028->rtc, &eeprom_cfg); rv3028->rtc->max_user_freq = 1; diff --git a/drivers/rtc/rtc-rv3029c2.c b/drivers/rtc/rtc-rv3029c2.c index 62718231731b..ad359b3b74b2 100644 --- a/drivers/rtc/rtc-rv3029c2.c +++ b/drivers/rtc/rtc-rv3029c2.c @@ -755,7 +755,7 @@ static int rv3029_probe(struct device *dev, struct regmap *regmap, int irq, return rc; nvmem_cfg.priv = rv3029->regmap; - rtc_nvmem_register(rv3029->rtc, &nvmem_cfg); + devm_rtc_nvmem_register(rv3029->rtc, &nvmem_cfg); return 0; } diff --git a/drivers/rtc/rtc-rv3032.c b/drivers/rtc/rtc-rv3032.c index e7b343a7ef02..6ad7665c6dab 100644 --- a/drivers/rtc/rtc-rv3032.c +++ b/drivers/rtc/rtc-rv3032.c @@ -890,9 +890,9 @@ static int rv3032_probe(struct i2c_client *client) return ret; nvmem_cfg.priv = rv3032->regmap; - rtc_nvmem_register(rv3032->rtc, &nvmem_cfg); + devm_rtc_nvmem_register(rv3032->rtc, &nvmem_cfg); eeprom_cfg.priv = rv3032; - rtc_nvmem_register(rv3032->rtc, &eeprom_cfg); + devm_rtc_nvmem_register(rv3032->rtc, &eeprom_cfg); rv3032->rtc->max_user_freq = 1; diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c index 1d888da48c7c..44e1818a751c 100644 --- a/drivers/rtc/rtc-rv8803.c +++ b/drivers/rtc/rtc-rv8803.c @@ -591,7 +591,7 @@ static int rv8803_probe(struct i2c_client *client, if (err) return err; - rtc_nvmem_register(rv8803->rtc, &nvmem_cfg); + devm_rtc_nvmem_register(rv8803->rtc, &nvmem_cfg); rv8803->rtc->max_user_freq = 1; diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c index 490f70f57636..017f74721cc0 100644 --- a/drivers/rtc/rtc-rx8581.c +++ b/drivers/rtc/rtc-rx8581.c @@ -302,7 +302,7 @@ static int rx8581_probe(struct i2c_client *client, for (i = 0; i < config->num_nvram; i++) { nvmem_cfg[i].priv = rx8581; - rtc_nvmem_register(rx8581->rtc, &nvmem_cfg[i]); + devm_rtc_nvmem_register(rx8581->rtc, &nvmem_cfg[i]); } return ret; diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c index 1ccf0d5d05b4..ad616bce7bca 100644 --- a/drivers/rtc/rtc-stk17ta8.c +++ b/drivers/rtc/rtc-stk17ta8.c @@ -313,7 +313,7 @@ static int stk17ta8_rtc_probe(struct platform_device *pdev) pdata->rtc->ops = &stk17ta8_rtc_ops; nvmem_cfg.priv = pdata; - ret = rtc_nvmem_register(pdata->rtc, &nvmem_cfg); + ret = devm_rtc_nvmem_register(pdata->rtc, &nvmem_cfg); if (ret) return ret; diff --git a/drivers/rtc/rtc-tx4939.c b/drivers/rtc/rtc-tx4939.c index abbb62b14d7a..11f46272bad3 100644 --- a/drivers/rtc/rtc-tx4939.c +++ b/drivers/rtc/rtc-tx4939.c @@ -271,7 +271,7 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev) pdata->rtc = rtc; nvmem_cfg.priv = pdata; - ret = rtc_nvmem_register(rtc, &nvmem_cfg); + ret = devm_rtc_nvmem_register(rtc, &nvmem_cfg); if (ret) return ret; diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 0983ab9faffb..cbca651d8ca4 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -244,11 +244,11 @@ extern int rtc_hctosys_ret; #endif #ifdef CONFIG_RTC_NVMEM -int rtc_nvmem_register(struct rtc_device *rtc, - struct nvmem_config *nvmem_config); +int devm_rtc_nvmem_register(struct rtc_device *rtc, + struct nvmem_config *nvmem_config); #else -static inline int rtc_nvmem_register(struct rtc_device *rtc, - struct nvmem_config *nvmem_config) +static inline int devm_rtc_nvmem_register(struct rtc_device *rtc, + struct nvmem_config *nvmem_config) { return 0; } From patchwork Wed Aug 16 14:19:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355253 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8153DC04A6A for ; Wed, 16 Aug 2023 14:20:49 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162042.1692195642925975488 for ; Wed, 16 Aug 2023 07:20:43 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100201" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:42 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id C60F74210C24; Wed, 16 Aug 2023 23:20:39 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 08/31] rtc: rework rtc_register_device() resource management Date: Wed, 16 Aug 2023 15:19:54 +0100 Message-Id: <20230816142017.147173-9-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:49 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12690 From: Bartosz Golaszewski commit fdcfd854333be5b30377dc5daa9cd0fa1643a979 upstream. rtc_register_device() is a managed interface but it doesn't use devres by itself - instead it marks an rtc_device as "registered" and the devres callback for devm_rtc_allocate_device() takes care of resource release. This doesn't correspond with the design behind devres where managed structures should not be aware of being managed. The correct solution here is to register a separate devres callback for unregistering the device. While at it: rename rtc_register_device() to devm_rtc_register_device() and add it to the list of managed interfaces in devres.rst. This way we can avoid any potential confusion of driver developers who may expect there to exist a corresponding unregister function. Signed-off-by: Bartosz Golaszewski Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201109163409.24301-8-brgl@bgdev.pl Signed-off-by: Biju Das --- .../driver-api/driver-model/devres.rst | 1 + arch/alpha/kernel/rtc.c | 2 +- drivers/mfd/menelaus.c | 2 +- drivers/rtc/class.c | 19 +++++++++---------- drivers/rtc/rtc-88pm80x.c | 2 +- drivers/rtc/rtc-88pm860x.c | 2 +- drivers/rtc/rtc-ab-b5ze-s3.c | 2 +- drivers/rtc/rtc-ab-eoz9.c | 2 +- drivers/rtc/rtc-ab3100.c | 2 +- drivers/rtc/rtc-ab8500.c | 2 +- drivers/rtc/rtc-abx80x.c | 2 +- drivers/rtc/rtc-ac100.c | 2 +- drivers/rtc/rtc-armada38x.c | 2 +- drivers/rtc/rtc-aspeed.c | 2 +- drivers/rtc/rtc-at91rm9200.c | 2 +- drivers/rtc/rtc-at91sam9.c | 2 +- drivers/rtc/rtc-au1xxx.c | 2 +- drivers/rtc/rtc-bd70528.c | 2 +- drivers/rtc/rtc-brcmstb-waketimer.c | 2 +- drivers/rtc/rtc-cadence.c | 2 +- drivers/rtc/rtc-cmos.c | 2 +- drivers/rtc/rtc-coh901331.c | 2 +- drivers/rtc/rtc-cpcap.c | 2 +- drivers/rtc/rtc-cros-ec.c | 2 +- drivers/rtc/rtc-da9052.c | 2 +- drivers/rtc/rtc-da9063.c | 2 +- drivers/rtc/rtc-davinci.c | 2 +- drivers/rtc/rtc-digicolor.c | 2 +- drivers/rtc/rtc-dm355evm.c | 2 +- drivers/rtc/rtc-ds1305.c | 2 +- drivers/rtc/rtc-ds1307.c | 2 +- drivers/rtc/rtc-ds1343.c | 2 +- drivers/rtc/rtc-ds1347.c | 2 +- drivers/rtc/rtc-ds1374.c | 2 +- drivers/rtc/rtc-ds1511.c | 2 +- drivers/rtc/rtc-ds1553.c | 2 +- drivers/rtc/rtc-ds1672.c | 2 +- drivers/rtc/rtc-ds1685.c | 2 +- drivers/rtc/rtc-ds1742.c | 2 +- drivers/rtc/rtc-ds2404.c | 2 +- drivers/rtc/rtc-ep93xx.c | 2 +- drivers/rtc/rtc-fsl-ftm-alarm.c | 2 +- drivers/rtc/rtc-ftrtc010.c | 2 +- drivers/rtc/rtc-goldfish.c | 2 +- drivers/rtc/rtc-imx-sc.c | 2 +- drivers/rtc/rtc-imxdi.c | 2 +- drivers/rtc/rtc-isl12026.c | 2 +- drivers/rtc/rtc-isl1208.c | 2 +- drivers/rtc/rtc-jz4740.c | 2 +- drivers/rtc/rtc-lpc32xx.c | 2 +- drivers/rtc/rtc-ls1x.c | 2 +- drivers/rtc/rtc-m41t80.c | 2 +- drivers/rtc/rtc-m48t59.c | 2 +- drivers/rtc/rtc-m48t86.c | 2 +- drivers/rtc/rtc-mc13xxx.c | 2 +- drivers/rtc/rtc-meson-vrtc.c | 2 +- drivers/rtc/rtc-meson.c | 2 +- drivers/rtc/rtc-mpc5121.c | 2 +- drivers/rtc/rtc-mrst.c | 2 +- drivers/rtc/rtc-mt2712.c | 2 +- drivers/rtc/rtc-mt6397.c | 2 +- drivers/rtc/rtc-mv.c | 2 +- drivers/rtc/rtc-mxc.c | 2 +- drivers/rtc/rtc-mxc_v2.c | 2 +- drivers/rtc/rtc-omap.c | 2 +- drivers/rtc/rtc-pcap.c | 2 +- drivers/rtc/rtc-pcf2123.c | 2 +- drivers/rtc/rtc-pcf2127.c | 2 +- drivers/rtc/rtc-pcf85063.c | 2 +- drivers/rtc/rtc-pcf85363.c | 2 +- drivers/rtc/rtc-pcf8563.c | 2 +- drivers/rtc/rtc-pic32.c | 2 +- drivers/rtc/rtc-pl030.c | 2 +- drivers/rtc/rtc-pl031.c | 2 +- drivers/rtc/rtc-pm8xxx.c | 2 +- drivers/rtc/rtc-ps3.c | 2 +- drivers/rtc/rtc-r9701.c | 2 +- drivers/rtc/rtc-rc5t619.c | 2 +- drivers/rtc/rtc-rk808.c | 2 +- drivers/rtc/rtc-rp5c01.c | 2 +- drivers/rtc/rtc-rs5c348.c | 2 +- drivers/rtc/rtc-rv3028.c | 2 +- drivers/rtc/rtc-rv3029c2.c | 2 +- drivers/rtc/rtc-rv3032.c | 2 +- drivers/rtc/rtc-rv8803.c | 2 +- drivers/rtc/rtc-rx8010.c | 2 +- drivers/rtc/rtc-rx8581.c | 2 +- drivers/rtc/rtc-s35390a.c | 2 +- drivers/rtc/rtc-sa1100.c | 2 +- drivers/rtc/rtc-sc27xx.c | 2 +- drivers/rtc/rtc-sd3078.c | 2 +- drivers/rtc/rtc-sh.c | 2 +- drivers/rtc/rtc-sirfsoc.c | 2 +- drivers/rtc/rtc-snvs.c | 2 +- drivers/rtc/rtc-st-lpc.c | 2 +- drivers/rtc/rtc-starfire.c | 2 +- drivers/rtc/rtc-stk17ta8.c | 2 +- drivers/rtc/rtc-stmp3xxx.c | 2 +- drivers/rtc/rtc-sun4v.c | 2 +- drivers/rtc/rtc-sun6i.c | 2 +- drivers/rtc/rtc-sunxi.c | 2 +- drivers/rtc/rtc-tegra.c | 2 +- drivers/rtc/rtc-test.c | 2 +- drivers/rtc/rtc-tps6586x.c | 2 +- drivers/rtc/rtc-tps65910.c | 2 +- drivers/rtc/rtc-tx4939.c | 2 +- drivers/rtc/rtc-vr41xx.c | 2 +- drivers/rtc/rtc-vt8500.c | 2 +- drivers/rtc/rtc-wilco-ec.c | 2 +- drivers/rtc/rtc-wm831x.c | 2 +- drivers/rtc/rtc-xgene.c | 2 +- drivers/rtc/rtc-zynqmp.c | 2 +- drivers/rtc/sysfs.c | 2 -- include/linux/rtc.h | 8 +++----- 114 files changed, 123 insertions(+), 127 deletions(-) diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst index 5df7ba54a4ba..cd8b6e657b94 100644 --- a/Documentation/driver-api/driver-model/devres.rst +++ b/Documentation/driver-api/driver-model/devres.rst @@ -414,6 +414,7 @@ RESET RTC devm_rtc_device_register() devm_rtc_allocate_device() + devm_rtc_register_device() devm_rtc_nvmem_register() SERDEV diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c index 48ffbfbd0624..fb3025396ac9 100644 --- a/arch/alpha/kernel/rtc.c +++ b/arch/alpha/kernel/rtc.c @@ -221,6 +221,6 @@ alpha_rtc_init(void) rtc->ops = &remote_rtc_ops; #endif - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } device_initcall(alpha_rtc_init); diff --git a/drivers/mfd/menelaus.c b/drivers/mfd/menelaus.c index b64d3315a5e1..07e0ca2e467c 100644 --- a/drivers/mfd/menelaus.c +++ b/drivers/mfd/menelaus.c @@ -1119,7 +1119,7 @@ static inline void menelaus_rtc_init(struct menelaus_chip *m) menelaus_write_reg(MENELAUS_RTC_CTRL, m->rtc_control); } - err = rtc_register_device(m->rtc); + err = devm_rtc_register_device(m->rtc); if (err) { if (alarm) { menelaus_remove_irq_work(MENELAUS_RTCALM_IRQ); diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 31c5aa28c00c..8f7b33a6cbe0 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -330,8 +330,10 @@ static void rtc_device_get_offset(struct rtc_device *rtc) * * @rtc: the RTC class device to destroy */ -static void rtc_device_unregister(struct rtc_device *rtc) +static void devm_rtc_unregister_device(void *data) { + struct rtc_device *rtc = data; + mutex_lock(&rtc->ops_lock); /* * Remove innards of this RTC, then disable it, before @@ -348,10 +350,7 @@ static void devm_rtc_release_device(struct device *dev, void *res) { struct rtc_device *rtc = *(struct rtc_device **)res; - if (rtc->registered) - rtc_device_unregister(rtc); - else - put_device(&rtc->dev); + put_device(&rtc->dev); } struct rtc_device *devm_rtc_allocate_device(struct device *dev) @@ -392,7 +391,7 @@ struct rtc_device *devm_rtc_allocate_device(struct device *dev) } EXPORT_SYMBOL_GPL(devm_rtc_allocate_device); -int __rtc_register_device(struct module *owner, struct rtc_device *rtc) +int __devm_rtc_register_device(struct module *owner, struct rtc_device *rtc) { struct rtc_wkalrm alrm; int err; @@ -422,7 +421,6 @@ int __rtc_register_device(struct module *owner, struct rtc_device *rtc) rtc_proc_add_device(rtc); - rtc->registered = true; dev_info(rtc->dev.parent, "registered as %s\n", dev_name(&rtc->dev)); @@ -431,9 +429,10 @@ int __rtc_register_device(struct module *owner, struct rtc_device *rtc) rtc_hctosys(rtc); #endif - return 0; + return devm_add_action_or_reset(rtc->dev.parent, + devm_rtc_unregister_device, rtc); } -EXPORT_SYMBOL_GPL(__rtc_register_device); +EXPORT_SYMBOL_GPL(__devm_rtc_register_device); /** * devm_rtc_device_register - resource managed rtc_device_register() @@ -463,7 +462,7 @@ struct rtc_device *devm_rtc_device_register(struct device *dev, rtc->ops = ops; - err = __rtc_register_device(owner, rtc); + err = __devm_rtc_register_device(owner, rtc); if (err) return ERR_PTR(err); diff --git a/drivers/rtc/rtc-88pm80x.c b/drivers/rtc/rtc-88pm80x.c index 75779e8501a3..6a3f44cf6ebe 100644 --- a/drivers/rtc/rtc-88pm80x.c +++ b/drivers/rtc/rtc-88pm80x.c @@ -294,7 +294,7 @@ static int pm80x_rtc_probe(struct platform_device *pdev) info->rtc_dev->ops = &pm80x_rtc_ops; info->rtc_dev->range_max = U32_MAX; - ret = rtc_register_device(info->rtc_dev); + ret = devm_rtc_register_device(info->rtc_dev); if (ret) goto out_rtc; diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c index c90457d001e9..2c809a1a445e 100644 --- a/drivers/rtc/rtc-88pm860x.c +++ b/drivers/rtc/rtc-88pm860x.c @@ -307,7 +307,7 @@ static int pm860x_rtc_probe(struct platform_device *pdev) info->rtc_dev->ops = &pm860x_rtc_ops; info->rtc_dev->range_max = U32_MAX; - ret = rtc_register_device(info->rtc_dev); + ret = devm_rtc_register_device(info->rtc_dev); if (ret) return ret; diff --git a/drivers/rtc/rtc-ab-b5ze-s3.c b/drivers/rtc/rtc-ab-b5ze-s3.c index 2370ac0cdb5f..6e3e320dc727 100644 --- a/drivers/rtc/rtc-ab-b5ze-s3.c +++ b/drivers/rtc/rtc-ab-b5ze-s3.c @@ -892,7 +892,7 @@ static int abb5zes3_probe(struct i2c_client *client, } } - ret = rtc_register_device(data->rtc); + ret = devm_rtc_register_device(data->rtc); err: if (ret && data->irq) diff --git a/drivers/rtc/rtc-ab-eoz9.c b/drivers/rtc/rtc-ab-eoz9.c index d690985caa4c..b20d8f26dcdb 100644 --- a/drivers/rtc/rtc-ab-eoz9.c +++ b/drivers/rtc/rtc-ab-eoz9.c @@ -420,7 +420,7 @@ static int abeoz9_probe(struct i2c_client *client, data->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; data->rtc->range_max = RTC_TIMESTAMP_END_2099; - ret = rtc_register_device(data->rtc); + ret = devm_rtc_register_device(data->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-ab3100.c b/drivers/rtc/rtc-ab3100.c index 2ed6def90975..e4fd961e8bf6 100644 --- a/drivers/rtc/rtc-ab3100.c +++ b/drivers/rtc/rtc-ab3100.c @@ -238,7 +238,7 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtc); - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct platform_driver ab3100_rtc_driver = { diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c index 3d60f3283f11..b40048871295 100644 --- a/drivers/rtc/rtc-ab8500.c +++ b/drivers/rtc/rtc-ab8500.c @@ -404,7 +404,7 @@ static int ab8500_rtc_probe(struct platform_device *pdev) if (err) return err; - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static int ab8500_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-abx80x.c b/drivers/rtc/rtc-abx80x.c index 803725b3a02c..6733bb0df674 100644 --- a/drivers/rtc/rtc-abx80x.c +++ b/drivers/rtc/rtc-abx80x.c @@ -851,7 +851,7 @@ static int abx80x_probe(struct i2c_client *client, return err; } - return rtc_register_device(priv->rtc); + return devm_rtc_register_device(priv->rtc); } static const struct i2c_device_id abx80x_id[] = { diff --git a/drivers/rtc/rtc-ac100.c b/drivers/rtc/rtc-ac100.c index 29223931aba7..1ddbef99e38f 100644 --- a/drivers/rtc/rtc-ac100.c +++ b/drivers/rtc/rtc-ac100.c @@ -610,7 +610,7 @@ static int ac100_rtc_probe(struct platform_device *pdev) if (ret) return ret; - return rtc_register_device(chip->rtc); + return devm_rtc_register_device(chip->rtc); } static int ac100_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-armada38x.c b/drivers/rtc/rtc-armada38x.c index 94d7c22fc4f3..807a79c07f08 100644 --- a/drivers/rtc/rtc-armada38x.c +++ b/drivers/rtc/rtc-armada38x.c @@ -556,7 +556,7 @@ static __init int armada38x_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->range_max = U32_MAX; - return rtc_register_device(rtc->rtc_dev); + return devm_rtc_register_device(rtc->rtc_dev); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/rtc/rtc-aspeed.c b/drivers/rtc/rtc-aspeed.c index eacdd0637cce..a93352ed3aec 100644 --- a/drivers/rtc/rtc-aspeed.c +++ b/drivers/rtc/rtc-aspeed.c @@ -104,7 +104,7 @@ static int aspeed_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->range_min = RTC_TIMESTAMP_BEGIN_1900; rtc->rtc_dev->range_max = 38814989399LL; /* 3199-12-31 23:59:59 */ - return rtc_register_device(rtc->rtc_dev); + return devm_rtc_register_device(rtc->rtc_dev); } static const struct of_device_id aspeed_rtc_match[] = { diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index 5e811e04cb21..ba49cc095aef 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -440,7 +440,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev) rtc->ops = &at91_rtc_ops; rtc->range_min = RTC_TIMESTAMP_BEGIN_1900; rtc->range_max = RTC_TIMESTAMP_END_2099; - ret = rtc_register_device(rtc); + ret = devm_rtc_register_device(rtc); if (ret) goto err_clk; diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c index e39e89867d29..2216be429ab7 100644 --- a/drivers/rtc/rtc-at91sam9.c +++ b/drivers/rtc/rtc-at91sam9.c @@ -431,7 +431,7 @@ static int at91_rtc_probe(struct platform_device *pdev) dev_warn(&pdev->dev, "%s: SET TIME!\n", dev_name(&rtc->rtcdev->dev)); - return rtc_register_device(rtc->rtcdev); + return devm_rtc_register_device(rtc->rtcdev); err_clk: clk_disable_unprepare(rtc->sclk); diff --git a/drivers/rtc/rtc-au1xxx.c b/drivers/rtc/rtc-au1xxx.c index 791bebcb6f47..e6428b27b5d4 100644 --- a/drivers/rtc/rtc-au1xxx.c +++ b/drivers/rtc/rtc-au1xxx.c @@ -104,7 +104,7 @@ static int au1xtoy_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtcdev); - return rtc_register_device(rtcdev); + return devm_rtc_register_device(rtcdev); } static struct platform_driver au1xrtc_driver = { diff --git a/drivers/rtc/rtc-bd70528.c b/drivers/rtc/rtc-bd70528.c index 4492b770422c..17cb67f5bf6e 100644 --- a/drivers/rtc/rtc-bd70528.c +++ b/drivers/rtc/rtc-bd70528.c @@ -604,7 +604,7 @@ static int bd70528_probe(struct platform_device *pdev) } } - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static const struct platform_device_id bd718x7_rtc_id[] = { diff --git a/drivers/rtc/rtc-brcmstb-waketimer.c b/drivers/rtc/rtc-brcmstb-waketimer.c index 4fee57c51280..560465b57419 100644 --- a/drivers/rtc/rtc-brcmstb-waketimer.c +++ b/drivers/rtc/rtc-brcmstb-waketimer.c @@ -252,7 +252,7 @@ static int brcmstb_waketmr_probe(struct platform_device *pdev) timer->rtc->ops = &brcmstb_waketmr_ops; timer->rtc->range_max = U32_MAX; - ret = rtc_register_device(timer->rtc); + ret = devm_rtc_register_device(timer->rtc); if (ret) goto err_notifier; diff --git a/drivers/rtc/rtc-cadence.c b/drivers/rtc/rtc-cadence.c index 595d5d252850..1edf7f16d73a 100644 --- a/drivers/rtc/rtc-cadence.c +++ b/drivers/rtc/rtc-cadence.c @@ -336,7 +336,7 @@ static int cdns_rtc_probe(struct platform_device *pdev) writel(0, crtc->regs + CDNS_RTC_HMR); writel(CDNS_RTC_KRTCR_KRTC, crtc->regs + CDNS_RTC_KRTCR); - ret = rtc_register_device(crtc->rtc_dev); + ret = devm_rtc_register_device(crtc->rtc_dev); if (ret) goto err_disable_wakeup; diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index 6b237943ee31..e1f238a01549 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -1093,7 +1093,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq) cmos_rtc.rtc->ops = &cmos_rtc_ops_no_alarm; } - retval = rtc_register_device(cmos_rtc.rtc); + retval = devm_rtc_register_device(cmos_rtc.rtc); if (retval) goto cleanup2; diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c index da59917c9ee8..168ced87d93a 100644 --- a/drivers/rtc/rtc-coh901331.c +++ b/drivers/rtc/rtc-coh901331.c @@ -203,7 +203,7 @@ static int __init coh901331_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtap); - ret = rtc_register_device(rtap->rtc); + ret = devm_rtc_register_device(rtap->rtc); if (ret) goto out_no_rtc; diff --git a/drivers/rtc/rtc-cpcap.c b/drivers/rtc/rtc-cpcap.c index 800667d73a6f..8f8369507103 100644 --- a/drivers/rtc/rtc-cpcap.c +++ b/drivers/rtc/rtc-cpcap.c @@ -299,7 +299,7 @@ static int cpcap_rtc_probe(struct platform_device *pdev) /* ignore error and continue without wakeup support */ } - return rtc_register_device(rtc->rtc_dev); + return devm_rtc_register_device(rtc->rtc_dev); } static const struct of_device_id cpcap_rtc_of_match[] = { diff --git a/drivers/rtc/rtc-cros-ec.c b/drivers/rtc/rtc-cros-ec.c index f7343c289cab..70626793ca69 100644 --- a/drivers/rtc/rtc-cros-ec.c +++ b/drivers/rtc/rtc-cros-ec.c @@ -350,7 +350,7 @@ static int cros_ec_rtc_probe(struct platform_device *pdev) cros_ec_rtc->rtc->ops = &cros_ec_rtc_ops; cros_ec_rtc->rtc->range_max = U32_MAX; - ret = rtc_register_device(cros_ec_rtc->rtc); + ret = devm_rtc_register_device(cros_ec_rtc->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-da9052.c b/drivers/rtc/rtc-da9052.c index 58de10da37b1..9ca99bd35702 100644 --- a/drivers/rtc/rtc-da9052.c +++ b/drivers/rtc/rtc-da9052.c @@ -304,7 +304,7 @@ static int da9052_rtc_probe(struct platform_device *pdev) rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; rtc->rtc->range_max = RTC_TIMESTAMP_END_2063; - ret = rtc_register_device(rtc->rtc); + ret = devm_rtc_register_device(rtc->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-da9063.c b/drivers/rtc/rtc-da9063.c index 046b1d4c3dae..03a55a3e2433 100644 --- a/drivers/rtc/rtc-da9063.c +++ b/drivers/rtc/rtc-da9063.c @@ -494,7 +494,7 @@ static int da9063_rtc_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Failed to request ALARM IRQ %d: %d\n", irq_alarm, ret); - return rtc_register_device(rtc->rtc_dev); + return devm_rtc_register_device(rtc->rtc_dev); } static struct platform_driver da9063_rtc_driver = { diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 73f87a17cdf3..6bef0f2353da 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -484,7 +484,7 @@ static int __init davinci_rtc_probe(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 0); - return rtc_register_device(davinci_rtc->rtc); + return devm_rtc_register_device(davinci_rtc->rtc); } static int __exit davinci_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-digicolor.c b/drivers/rtc/rtc-digicolor.c index 200d85b01e8b..4fdfa5b6feb2 100644 --- a/drivers/rtc/rtc-digicolor.c +++ b/drivers/rtc/rtc-digicolor.c @@ -202,7 +202,7 @@ static int __init dc_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->ops = &dc_rtc_ops; rtc->rtc_dev->range_max = U32_MAX; - return rtc_register_device(rtc->rtc_dev); + return devm_rtc_register_device(rtc->rtc_dev); } static const struct of_device_id dc_dt_ids[] = { diff --git a/drivers/rtc/rtc-dm355evm.c b/drivers/rtc/rtc-dm355evm.c index cd947a20843b..94fb16ac3e0f 100644 --- a/drivers/rtc/rtc-dm355evm.c +++ b/drivers/rtc/rtc-dm355evm.c @@ -132,7 +132,7 @@ static int dm355evm_rtc_probe(struct platform_device *pdev) rtc->ops = &dm355evm_rtc_ops; rtc->range_max = U32_MAX; - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } /* diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index a4e768261b43..8c2ab29c3d91 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -694,7 +694,7 @@ static int ds1305_probe(struct spi_device *spi) ds1305->rtc->range_max = RTC_TIMESTAMP_END_2099; ds1305_nvmem_cfg.priv = ds1305; - status = rtc_register_device(ds1305->rtc); + status = devm_rtc_register_device(ds1305->rtc); if (status) return status; diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index eb24aaf110a9..c9b0b115c749 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -2040,7 +2040,7 @@ static int ds1307_probe(struct i2c_client *client, if (err) return err; - err = rtc_register_device(ds1307->rtc); + err = devm_rtc_register_device(ds1307->rtc); if (err) return err; diff --git a/drivers/rtc/rtc-ds1343.c b/drivers/rtc/rtc-ds1343.c index ea663e24a34c..f14ed6c96437 100644 --- a/drivers/rtc/rtc-ds1343.c +++ b/drivers/rtc/rtc-ds1343.c @@ -408,7 +408,7 @@ static int ds1343_probe(struct spi_device *spi) dev_err(&spi->dev, "unable to create sysfs entries for rtc ds1343\n"); - res = rtc_register_device(priv->rtc); + res = devm_rtc_register_device(priv->rtc); if (res) return res; diff --git a/drivers/rtc/rtc-ds1347.c b/drivers/rtc/rtc-ds1347.c index 03267ac65747..a40c1a52df65 100644 --- a/drivers/rtc/rtc-ds1347.c +++ b/drivers/rtc/rtc-ds1347.c @@ -166,7 +166,7 @@ static int ds1347_probe(struct spi_device *spi) rtc->range_min = RTC_TIMESTAMP_BEGIN_0000; rtc->range_max = RTC_TIMESTAMP_END_9999; - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct spi_driver ds1347_driver = { diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c index 177d870bda0d..fab79921a712 100644 --- a/drivers/rtc/rtc-ds1374.c +++ b/drivers/rtc/rtc-ds1374.c @@ -508,7 +508,7 @@ static int ds1374_probe(struct i2c_client *client, ds1374->rtc->ops = &ds1374_rtc_ops; ds1374->rtc->range_max = U32_MAX; - ret = rtc_register_device(ds1374->rtc); + ret = devm_rtc_register_device(ds1374->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index d5f48216e851..bda884333082 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -466,7 +466,7 @@ static int ds1511_rtc_probe(struct platform_device *pdev) pdata->rtc->ops = &ds1511_rtc_ops; - ret = rtc_register_device(pdata->rtc); + ret = devm_rtc_register_device(pdata->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c index 2d2eb739d92b..797bc2efad5a 100644 --- a/drivers/rtc/rtc-ds1553.c +++ b/drivers/rtc/rtc-ds1553.c @@ -295,7 +295,7 @@ static int ds1553_rtc_probe(struct platform_device *pdev) pdata->rtc->ops = &ds1553_rtc_ops; - ret = rtc_register_device(pdata->rtc); + ret = devm_rtc_register_device(pdata->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c index 9da84df9f152..630493759d15 100644 --- a/drivers/rtc/rtc-ds1672.c +++ b/drivers/rtc/rtc-ds1672.c @@ -124,7 +124,7 @@ static int ds1672_probe(struct i2c_client *client, rtc->ops = &ds1672_rtc_ops; rtc->range_max = U32_MAX; - err = rtc_register_device(rtc); + err = devm_rtc_register_device(rtc); if (err) return err; diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index bef588fce266..d69c807af29b 100644 --- a/drivers/rtc/rtc-ds1685.c +++ b/drivers/rtc/rtc-ds1685.c @@ -1321,7 +1321,7 @@ ds1685_rtc_probe(struct platform_device *pdev) if (ret) return ret; - return rtc_register_device(rtc_dev); + return devm_rtc_register_device(rtc_dev); } /** diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c index 29792a8cce97..4fcc1df7a0e2 100644 --- a/drivers/rtc/rtc-ds1742.c +++ b/drivers/rtc/rtc-ds1742.c @@ -191,7 +191,7 @@ static int ds1742_rtc_probe(struct platform_device *pdev) rtc->ops = &ds1742_rtc_ops; - ret = rtc_register_device(rtc); + ret = devm_rtc_register_device(rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-ds2404.c b/drivers/rtc/rtc-ds2404.c index 9df0c44512b8..0480f592307e 100644 --- a/drivers/rtc/rtc-ds2404.c +++ b/drivers/rtc/rtc-ds2404.c @@ -234,7 +234,7 @@ static int rtc_probe(struct platform_device *pdev) chip->rtc->ops = &ds2404_rtc_ops; chip->rtc->range_max = U32_MAX; - retval = rtc_register_device(chip->rtc); + retval = devm_rtc_register_device(chip->rtc); if (retval) return retval; diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c index 6f90b85a5814..acae7f16808f 100644 --- a/drivers/rtc/rtc-ep93xx.c +++ b/drivers/rtc/rtc-ep93xx.c @@ -145,7 +145,7 @@ static int ep93xx_rtc_probe(struct platform_device *pdev) if (err) return err; - return rtc_register_device(ep93xx_rtc->rtc); + return devm_rtc_register_device(ep93xx_rtc->rtc); } static struct platform_driver ep93xx_rtc_driver = { diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-ftm-alarm.c index e08672e26203..c0df49fb978c 100644 --- a/drivers/rtc/rtc-fsl-ftm-alarm.c +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c @@ -290,7 +290,7 @@ static int ftm_rtc_probe(struct platform_device *pdev) if (ret) dev_err(&pdev->dev, "failed to enable irq wake\n"); - ret = rtc_register_device(rtc->rtc_dev); + ret = devm_rtc_register_device(rtc->rtc_dev); if (ret) { dev_err(&pdev->dev, "can't register rtc device\n"); return ret; diff --git a/drivers/rtc/rtc-ftrtc010.c b/drivers/rtc/rtc-ftrtc010.c index 0919f7dc94a3..ad3add5db4c8 100644 --- a/drivers/rtc/rtc-ftrtc010.c +++ b/drivers/rtc/rtc-ftrtc010.c @@ -176,7 +176,7 @@ static int ftrtc010_rtc_probe(struct platform_device *pdev) if (unlikely(ret)) return ret; - return rtc_register_device(rtc->rtc_dev); + return devm_rtc_register_device(rtc->rtc_dev); } static int ftrtc010_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-goldfish.c b/drivers/rtc/rtc-goldfish.c index 6349d2cd3680..7ab95d052644 100644 --- a/drivers/rtc/rtc-goldfish.c +++ b/drivers/rtc/rtc-goldfish.c @@ -194,7 +194,7 @@ static int goldfish_rtc_probe(struct platform_device *pdev) if (err) return err; - return rtc_register_device(rtcdrv->rtc); + return devm_rtc_register_device(rtcdrv->rtc); } static const struct of_device_id goldfish_rtc_of_match[] = { diff --git a/drivers/rtc/rtc-imx-sc.c b/drivers/rtc/rtc-imx-sc.c index a5f59e6f862e..cc9fbab49999 100644 --- a/drivers/rtc/rtc-imx-sc.c +++ b/drivers/rtc/rtc-imx-sc.c @@ -166,7 +166,7 @@ static int imx_sc_rtc_probe(struct platform_device *pdev) imx_sc_rtc->range_min = 0; imx_sc_rtc->range_max = U32_MAX; - ret = rtc_register_device(imx_sc_rtc); + ret = devm_rtc_register_device(imx_sc_rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-imxdi.c b/drivers/rtc/rtc-imxdi.c index 8d141d8a5490..c2692da74e09 100644 --- a/drivers/rtc/rtc-imxdi.c +++ b/drivers/rtc/rtc-imxdi.c @@ -814,7 +814,7 @@ static int __init dryice_rtc_probe(struct platform_device *pdev) imxdi->rtc->ops = &dryice_rtc_ops; imxdi->rtc->range_max = U32_MAX; - rc = rtc_register_device(imxdi->rtc); + rc = devm_rtc_register_device(imxdi->rtc); if (rc) goto err; diff --git a/drivers/rtc/rtc-isl12026.c b/drivers/rtc/rtc-isl12026.c index fff8d8253669..1fc6627d854d 100644 --- a/drivers/rtc/rtc-isl12026.c +++ b/drivers/rtc/rtc-isl12026.c @@ -469,7 +469,7 @@ static int isl12026_probe_new(struct i2c_client *client) if (ret) return ret; - return rtc_register_device(priv->rtc); + return devm_rtc_register_device(priv->rtc); } static int isl12026_remove(struct i2c_client *client) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index 08d778b10e9e..563a6d9c9fcf 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -894,7 +894,7 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) if (rc) return rc; - return rtc_register_device(isl1208->rtc); + return devm_rtc_register_device(isl1208->rtc); } static struct i2c_driver isl1208_driver = { diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c index 9607e6b6e0b3..6e51df72fd65 100644 --- a/drivers/rtc/rtc-jz4740.c +++ b/drivers/rtc/rtc-jz4740.c @@ -375,7 +375,7 @@ static int jz4740_rtc_probe(struct platform_device *pdev) /* Each 1 Hz pulse should happen after (rate) ticks */ jz4740_rtc_reg_write(rtc, JZ_REG_RTC_REGULATOR, rate - 1); - ret = rtc_register_device(rtc->rtc); + ret = devm_rtc_register_device(rtc->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-lpc32xx.c b/drivers/rtc/rtc-lpc32xx.c index 15d8abda81fe..76ad7031a13d 100644 --- a/drivers/rtc/rtc-lpc32xx.c +++ b/drivers/rtc/rtc-lpc32xx.c @@ -239,7 +239,7 @@ static int lpc32xx_rtc_probe(struct platform_device *pdev) rtc->rtc->ops = &lpc32xx_rtc_ops; rtc->rtc->range_max = U32_MAX; - err = rtc_register_device(rtc->rtc); + err = devm_rtc_register_device(rtc->rtc); if (err) return err; diff --git a/drivers/rtc/rtc-ls1x.c b/drivers/rtc/rtc-ls1x.c index 8bd34056fea0..5af26dc5c2a3 100644 --- a/drivers/rtc/rtc-ls1x.c +++ b/drivers/rtc/rtc-ls1x.c @@ -176,7 +176,7 @@ static int ls1x_rtc_probe(struct platform_device *pdev) rtcdev->range_min = RTC_TIMESTAMP_BEGIN_1900; rtcdev->range_max = RTC_TIMESTAMP_END_2099; - return rtc_register_device(rtcdev); + return devm_rtc_register_device(rtcdev); } static struct platform_driver ls1x_rtc_driver = { diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index 8a89bc52b0d4..160dcf68e64e 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -977,7 +977,7 @@ static int m41t80_probe(struct i2c_client *client, m41t80_sqw_register_clk(m41t80_data); #endif - rc = rtc_register_device(m41t80_data->rtc); + rc = devm_rtc_register_device(m41t80_data->rtc); if (rc) return rc; diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c index e966a66ab2d3..5f5898d3b055 100644 --- a/drivers/rtc/rtc-m48t59.c +++ b/drivers/rtc/rtc-m48t59.c @@ -470,7 +470,7 @@ static int m48t59_rtc_probe(struct platform_device *pdev) if (ret) return ret; - ret = rtc_register_device(m48t59->rtc); + ret = devm_rtc_register_device(m48t59->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c index 182cfe59e4e0..481c9525b1dd 100644 --- a/drivers/rtc/rtc-m48t86.c +++ b/drivers/rtc/rtc-m48t86.c @@ -255,7 +255,7 @@ static int m48t86_rtc_probe(struct platform_device *pdev) info->rtc->ops = &m48t86_rtc_ops; - err = rtc_register_device(info->rtc); + err = devm_rtc_register_device(info->rtc); if (err) return err; diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c index d6802e6191cb..d4234e78497e 100644 --- a/drivers/rtc/rtc-mc13xxx.c +++ b/drivers/rtc/rtc-mc13xxx.c @@ -307,7 +307,7 @@ static int __init mc13xxx_rtc_probe(struct platform_device *pdev) mc13xxx_unlock(mc13xxx); - ret = rtc_register_device(priv->rtc); + ret = devm_rtc_register_device(priv->rtc); if (ret) { mc13xxx_lock(mc13xxx); goto err_irq_request; diff --git a/drivers/rtc/rtc-meson-vrtc.c b/drivers/rtc/rtc-meson-vrtc.c index 18ff8439b5bb..648fa362ec44 100644 --- a/drivers/rtc/rtc-meson-vrtc.c +++ b/drivers/rtc/rtc-meson-vrtc.c @@ -83,7 +83,7 @@ static int meson_vrtc_probe(struct platform_device *pdev) return PTR_ERR(vrtc->rtc); vrtc->rtc->ops = &meson_vrtc_ops; - return rtc_register_device(vrtc->rtc); + return devm_rtc_register_device(vrtc->rtc); } static int __maybe_unused meson_vrtc_suspend(struct device *dev) diff --git a/drivers/rtc/rtc-meson.c b/drivers/rtc/rtc-meson.c index 938267713a4d..8642c06565ea 100644 --- a/drivers/rtc/rtc-meson.c +++ b/drivers/rtc/rtc-meson.c @@ -369,7 +369,7 @@ static int meson_rtc_probe(struct platform_device *pdev) if (ret) goto out_disable_vdd; - ret = rtc_register_device(rtc->rtc); + ret = devm_rtc_register_device(rtc->rtc); if (ret) goto out_disable_vdd; diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c index 5c2ce71aa044..bb2ea9bc56f2 100644 --- a/drivers/rtc/rtc-mpc5121.c +++ b/drivers/rtc/rtc-mpc5121.c @@ -371,7 +371,7 @@ static int mpc5121_rtc_probe(struct platform_device *op) rtc->rtc->range_max = U32_MAX; } - err = rtc_register_device(rtc->rtc); + err = devm_rtc_register_device(rtc->rtc); if (err) goto out_dispose2; diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index 17bf5394e1e5..421b3b6071b6 100644 --- a/drivers/rtc/rtc-mrst.c +++ b/drivers/rtc/rtc-mrst.c @@ -361,7 +361,7 @@ static int vrtc_mrst_do_probe(struct device *dev, struct resource *iomem, } } - retval = rtc_register_device(mrst_rtc.rtc); + retval = devm_rtc_register_device(mrst_rtc.rtc); if (retval) goto cleanup0; diff --git a/drivers/rtc/rtc-mt2712.c b/drivers/rtc/rtc-mt2712.c index d5f691c8a035..cd92a9788351 100644 --- a/drivers/rtc/rtc-mt2712.c +++ b/drivers/rtc/rtc-mt2712.c @@ -352,7 +352,7 @@ static int mt2712_rtc_probe(struct platform_device *pdev) mt2712_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; mt2712_rtc->rtc->range_max = MT2712_RTC_TIMESTAMP_END_2127; - return rtc_register_device(mt2712_rtc->rtc); + return devm_rtc_register_device(mt2712_rtc->rtc); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c index acfcb378767d..a4571b98fc7f 100644 --- a/drivers/rtc/rtc-mt6397.c +++ b/drivers/rtc/rtc-mt6397.c @@ -303,7 +303,7 @@ static int mtk_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->ops = &mtk_rtc_ops; - return rtc_register_device(rtc->rtc_dev); + return devm_rtc_register_device(rtc->rtc_dev); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c index d5f190e578e4..f8e2ecea1d8d 100644 --- a/drivers/rtc/rtc-mv.c +++ b/drivers/rtc/rtc-mv.c @@ -278,7 +278,7 @@ static int __init mv_rtc_probe(struct platform_device *pdev) pdata->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; pdata->rtc->range_max = RTC_TIMESTAMP_END_2099; - ret = rtc_register_device(pdata->rtc); + ret = devm_rtc_register_device(pdata->rtc); if (!ret) return 0; out: diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c index a8cfbde048f4..85e23efb8433 100644 --- a/drivers/rtc/rtc-mxc.c +++ b/drivers/rtc/rtc-mxc.c @@ -428,7 +428,7 @@ static int mxc_rtc_probe(struct platform_device *pdev) dev_err(&pdev->dev, "failed to enable irq wake\n"); } - ret = rtc_register_device(rtc); + ret = devm_rtc_register_device(rtc); return ret; } diff --git a/drivers/rtc/rtc-mxc_v2.c b/drivers/rtc/rtc-mxc_v2.c index 48595b00ebb3..03a1799c13d2 100644 --- a/drivers/rtc/rtc-mxc_v2.c +++ b/drivers/rtc/rtc-mxc_v2.c @@ -356,7 +356,7 @@ static int mxc_rtc_probe(struct platform_device *pdev) return ret; } - ret = rtc_register_device(pdata->rtc); + ret = devm_rtc_register_device(pdata->rtc); if (ret < 0) clk_unprepare(pdata->clk); diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index d165367a152c..111614a60d7d 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -887,7 +887,7 @@ static int omap_rtc_probe(struct platform_device *pdev) goto err; } - ret = rtc_register_device(rtc->rtc); + ret = devm_rtc_register_device(rtc->rtc); if (ret) goto err_deregister_pinctrl; diff --git a/drivers/rtc/rtc-pcap.c b/drivers/rtc/rtc-pcap.c index 178bfb1dea21..8c7a98a5452c 100644 --- a/drivers/rtc/rtc-pcap.c +++ b/drivers/rtc/rtc-pcap.c @@ -163,7 +163,7 @@ static int __init pcap_rtc_probe(struct platform_device *pdev) if (err) return err; - return rtc_register_device(pcap_rtc->rtc); + return devm_rtc_register_device(pcap_rtc->rtc); } static int __exit pcap_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c index c3691fa4210e..534ffc91eec1 100644 --- a/drivers/rtc/rtc-pcf2123.c +++ b/drivers/rtc/rtc-pcf2123.c @@ -434,7 +434,7 @@ static int pcf2123_probe(struct spi_device *spi) rtc->range_max = RTC_TIMESTAMP_END_2099; rtc->set_start_time = true; - ret = rtc_register_device(rtc); + ret = devm_rtc_register_device(rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-pcf2127.c b/drivers/rtc/rtc-pcf2127.c index cb6bd7cae927..28a85111bb77 100644 --- a/drivers/rtc/rtc-pcf2127.c +++ b/drivers/rtc/rtc-pcf2127.c @@ -684,7 +684,7 @@ static int pcf2127_probe(struct device *dev, struct regmap *regmap, return ret; } - return rtc_register_device(pcf2127->rtc); + return devm_rtc_register_device(pcf2127->rtc); } #ifdef CONFIG_OF diff --git a/drivers/rtc/rtc-pcf85063.c b/drivers/rtc/rtc-pcf85063.c index ad07ef654f6b..7f236c2c869d 100644 --- a/drivers/rtc/rtc-pcf85063.c +++ b/drivers/rtc/rtc-pcf85063.c @@ -613,7 +613,7 @@ static int pcf85063_probe(struct i2c_client *client) pcf85063_clkout_register_clk(pcf85063); #endif - return rtc_register_device(pcf85063->rtc); + return devm_rtc_register_device(pcf85063->rtc); } #ifdef CONFIG_OF diff --git a/drivers/rtc/rtc-pcf85363.c b/drivers/rtc/rtc-pcf85363.c index 23cf14ca2c96..a574c8d15a5c 100644 --- a/drivers/rtc/rtc-pcf85363.c +++ b/drivers/rtc/rtc-pcf85363.c @@ -418,7 +418,7 @@ static int pcf85363_probe(struct i2c_client *client, pcf85363->rtc->ops = &rtc_ops_alarm; } - ret = rtc_register_device(pcf85363->rtc); + ret = devm_rtc_register_device(pcf85363->rtc); for (i = 0; i < config->num_nvram; i++) { nvmem_cfg[i].priv = pcf85363; diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c index 2dc30eafa639..de3e6c355f2e 100644 --- a/drivers/rtc/rtc-pcf8563.c +++ b/drivers/rtc/rtc-pcf8563.c @@ -582,7 +582,7 @@ static int pcf8563_probe(struct i2c_client *client, } } - err = rtc_register_device(pcf8563->rtc); + err = devm_rtc_register_device(pcf8563->rtc); if (err) return err; diff --git a/drivers/rtc/rtc-pic32.c b/drivers/rtc/rtc-pic32.c index 7be1ca1633fc..fa351ac20158 100644 --- a/drivers/rtc/rtc-pic32.c +++ b/drivers/rtc/rtc-pic32.c @@ -338,7 +338,7 @@ static int pic32_rtc_probe(struct platform_device *pdev) pdata->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; pdata->rtc->range_max = RTC_TIMESTAMP_END_2099; - ret = rtc_register_device(pdata->rtc); + ret = devm_rtc_register_device(pdata->rtc); if (ret) goto err_nortc; diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c index 87c93843d62a..39038c0754ee 100644 --- a/drivers/rtc/rtc-pl030.c +++ b/drivers/rtc/rtc-pl030.c @@ -121,7 +121,7 @@ static int pl030_probe(struct amba_device *dev, const struct amba_id *id) if (ret) goto err_irq; - ret = rtc_register_device(rtc->rtc); + ret = devm_rtc_register_device(rtc->rtc); if (ret) goto err_reg; diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c index 2f5581ea26fe..620c8dc33647 100644 --- a/drivers/rtc/rtc-pl031.c +++ b/drivers/rtc/rtc-pl031.c @@ -368,7 +368,7 @@ static int pl031_probe(struct amba_device *adev, const struct amba_id *id) ldata->rtc->range_min = vendor->range_min; ldata->rtc->range_max = vendor->range_max; - ret = rtc_register_device(ldata->rtc); + ret = devm_rtc_register_device(ldata->rtc); if (ret) goto out; diff --git a/drivers/rtc/rtc-pm8xxx.c b/drivers/rtc/rtc-pm8xxx.c index 3417eef0aca3..90dcbdc199b4 100644 --- a/drivers/rtc/rtc-pm8xxx.c +++ b/drivers/rtc/rtc-pm8xxx.c @@ -504,7 +504,7 @@ static int pm8xxx_rtc_probe(struct platform_device *pdev) return rc; } - return rtc_register_device(rtc_dd->rtc); + return devm_rtc_register_device(rtc_dd->rtc); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/rtc/rtc-ps3.c b/drivers/rtc/rtc-ps3.c index f0336d691e6c..6b098734c715 100644 --- a/drivers/rtc/rtc-ps3.c +++ b/drivers/rtc/rtc-ps3.c @@ -56,7 +56,7 @@ static int __init ps3_rtc_probe(struct platform_device *dev) platform_set_drvdata(dev, rtc); - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct platform_driver ps3_rtc_driver = { diff --git a/drivers/rtc/rtc-r9701.c b/drivers/rtc/rtc-r9701.c index 7ceb968f0e44..60a3c3d7499b 100644 --- a/drivers/rtc/rtc-r9701.c +++ b/drivers/rtc/rtc-r9701.c @@ -127,7 +127,7 @@ static int r9701_probe(struct spi_device *spi) rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; rtc->range_max = RTC_TIMESTAMP_END_2099; - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct spi_driver r9701_driver = { diff --git a/drivers/rtc/rtc-rc5t619.c b/drivers/rtc/rtc-rc5t619.c index dd1a20977478..e73102a39f1b 100644 --- a/drivers/rtc/rtc-rc5t619.c +++ b/drivers/rtc/rtc-rc5t619.c @@ -426,7 +426,7 @@ static int rc5t619_rtc_probe(struct platform_device *pdev) dev_warn(&pdev->dev, "rc5t619 interrupt is disabled\n"); } - return rtc_register_device(rtc->rtc); + return devm_rtc_register_device(rtc->rtc); } static struct platform_driver rc5t619_rtc_driver = { diff --git a/drivers/rtc/rtc-rk808.c b/drivers/rtc/rtc-rk808.c index c0334c602e88..e920da8c08da 100644 --- a/drivers/rtc/rtc-rk808.c +++ b/drivers/rtc/rtc-rk808.c @@ -447,7 +447,7 @@ static int rk808_rtc_probe(struct platform_device *pdev) return ret; } - return rtc_register_device(rk808_rtc->rtc); + return devm_rtc_register_device(rk808_rtc->rtc); } static struct platform_driver rk808_rtc_driver = { diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index 8bc476c0905f..44afa6d996e7 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -259,7 +259,7 @@ static int __init rp5c01_rtc_probe(struct platform_device *dev) if (error) return error; - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct platform_driver rp5c01_rtc_driver = { diff --git a/drivers/rtc/rtc-rs5c348.c b/drivers/rtc/rtc-rs5c348.c index 47c13678449e..fec633f80789 100644 --- a/drivers/rtc/rtc-rs5c348.c +++ b/drivers/rtc/rtc-rs5c348.c @@ -197,7 +197,7 @@ static int rs5c348_probe(struct spi_device *spi) rtc->ops = &rs5c348_rtc_ops; - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct spi_driver rs5c348_driver = { diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c index f788df979750..979407a51c7a 100644 --- a/drivers/rtc/rtc-rv3028.c +++ b/drivers/rtc/rtc-rv3028.c @@ -886,7 +886,7 @@ static int rv3028_probe(struct i2c_client *client) rv3028->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; rv3028->rtc->range_max = RTC_TIMESTAMP_END_2099; rv3028->rtc->ops = &rv3028_rtc_ops; - ret = rtc_register_device(rv3028->rtc); + ret = devm_rtc_register_device(rv3028->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-rv3029c2.c b/drivers/rtc/rtc-rv3029c2.c index ad359b3b74b2..dc1bda62095e 100644 --- a/drivers/rtc/rtc-rv3029c2.c +++ b/drivers/rtc/rtc-rv3029c2.c @@ -750,7 +750,7 @@ static int rv3029_probe(struct device *dev, struct regmap *regmap, int irq, rv3029->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; rv3029->rtc->range_max = RTC_TIMESTAMP_END_2079; - rc = rtc_register_device(rv3029->rtc); + rc = devm_rtc_register_device(rv3029->rtc); if (rc) return rc; diff --git a/drivers/rtc/rtc-rv3032.c b/drivers/rtc/rtc-rv3032.c index 6ad7665c6dab..b0e20f260283 100644 --- a/drivers/rtc/rtc-rv3032.c +++ b/drivers/rtc/rtc-rv3032.c @@ -885,7 +885,7 @@ static int rv3032_probe(struct i2c_client *client) rv3032->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; rv3032->rtc->range_max = RTC_TIMESTAMP_END_2099; rv3032->rtc->ops = &rv3032_rtc_ops; - ret = rtc_register_device(rv3032->rtc); + ret = devm_rtc_register_device(rv3032->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c index 44e1818a751c..d4ea6db51b26 100644 --- a/drivers/rtc/rtc-rv8803.c +++ b/drivers/rtc/rtc-rv8803.c @@ -587,7 +587,7 @@ static int rv8803_probe(struct i2c_client *client, rv8803->rtc->ops = &rv8803_rtc_ops; rv8803->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; rv8803->rtc->range_max = RTC_TIMESTAMP_END_2099; - err = rtc_register_device(rv8803->rtc); + err = devm_rtc_register_device(rv8803->rtc); if (err) return err; diff --git a/drivers/rtc/rtc-rx8010.c b/drivers/rtc/rtc-rx8010.c index dca41a2a39b2..8340ab47a059 100644 --- a/drivers/rtc/rtc-rx8010.c +++ b/drivers/rtc/rtc-rx8010.c @@ -419,7 +419,7 @@ static int rx8010_probe(struct i2c_client *client) rx8010->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; rx8010->rtc->range_max = RTC_TIMESTAMP_END_2099; - return rtc_register_device(rx8010->rtc); + return devm_rtc_register_device(rx8010->rtc); } static struct i2c_driver rx8010_driver = { diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c index 017f74721cc0..de109139529b 100644 --- a/drivers/rtc/rtc-rx8581.c +++ b/drivers/rtc/rtc-rx8581.c @@ -298,7 +298,7 @@ static int rx8581_probe(struct i2c_client *client, rx8581->rtc->start_secs = 0; rx8581->rtc->set_start_time = true; - ret = rtc_register_device(rx8581->rtc); + ret = devm_rtc_register_device(rx8581->rtc); for (i = 0; i < config->num_nvram; i++) { nvmem_cfg[i].priv = rx8581; diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c index 03672a246356..ea15d0392bb9 100644 --- a/drivers/rtc/rtc-s35390a.c +++ b/drivers/rtc/rtc-s35390a.c @@ -497,7 +497,7 @@ static int s35390a_probe(struct i2c_client *client, if (status1 & S35390A_FLAG_INT2) rtc_update_irq(s35390a->rtc, 1, RTC_AF); - return rtc_register_device(s35390a->rtc); + return devm_rtc_register_device(s35390a->rtc); } static struct i2c_driver s35390a_driver = { diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 9ccc97cf5e09..1250887e4382 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -205,7 +205,7 @@ int sa1100_rtc_init(struct platform_device *pdev, struct sa1100_rtc *info) info->rtc->max_user_freq = RTC_FREQ; info->rtc->range_max = U32_MAX; - ret = rtc_register_device(info->rtc); + ret = devm_rtc_register_device(info->rtc); if (ret) { clk_disable_unprepare(info->clk); return ret; diff --git a/drivers/rtc/rtc-sc27xx.c b/drivers/rtc/rtc-sc27xx.c index 36810dd40cd3..42c1be170ee7 100644 --- a/drivers/rtc/rtc-sc27xx.c +++ b/drivers/rtc/rtc-sc27xx.c @@ -652,7 +652,7 @@ static int sprd_rtc_probe(struct platform_device *pdev) rtc->rtc->ops = &sprd_rtc_ops; rtc->rtc->range_min = 0; rtc->rtc->range_max = 5662310399LL; - ret = rtc_register_device(rtc->rtc); + ret = devm_rtc_register_device(rtc->rtc); if (ret) { device_init_wakeup(&pdev->dev, 0); return ret; diff --git a/drivers/rtc/rtc-sd3078.c b/drivers/rtc/rtc-sd3078.c index a7aa943c1183..f6bee69ba017 100644 --- a/drivers/rtc/rtc-sd3078.c +++ b/drivers/rtc/rtc-sd3078.c @@ -192,7 +192,7 @@ static int sd3078_probe(struct i2c_client *client, sd3078->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; sd3078->rtc->range_max = RTC_TIMESTAMP_END_2099; - ret = rtc_register_device(sd3078->rtc); + ret = devm_rtc_register_device(sd3078->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index 9167b48014a1..cd146b574143 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -607,7 +607,7 @@ static int __init sh_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->range_max = mktime64(2098, 12, 31, 23, 59, 59); } - ret = rtc_register_device(rtc->rtc_dev); + ret = devm_rtc_register_device(rtc->rtc_dev); if (ret) goto err_unmap; diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c index abf19435dbad..03a6cca23201 100644 --- a/drivers/rtc/rtc-sirfsoc.c +++ b/drivers/rtc/rtc-sirfsoc.c @@ -356,7 +356,7 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev) return err; } - return rtc_register_device(rtcdrv->rtc); + return devm_rtc_register_device(rtcdrv->rtc); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c index cc7f6c4216bc..c4b3e31c0b1e 100644 --- a/drivers/rtc/rtc-snvs.c +++ b/drivers/rtc/rtc-snvs.c @@ -417,7 +417,7 @@ static int snvs_rtc_probe(struct platform_device *pdev) data->rtc->ops = &snvs_rtc_ops; data->rtc->range_max = U32_MAX; - return rtc_register_device(data->rtc); + return devm_rtc_register_device(data->rtc); } static int __maybe_unused snvs_rtc_suspend_noirq(struct device *dev) diff --git a/drivers/rtc/rtc-st-lpc.c b/drivers/rtc/rtc-st-lpc.c index 7d53f7e2febc..0f8e4231098e 100644 --- a/drivers/rtc/rtc-st-lpc.c +++ b/drivers/rtc/rtc-st-lpc.c @@ -251,7 +251,7 @@ static int st_rtc_probe(struct platform_device *pdev) rtc->rtc_dev->range_max = U64_MAX; do_div(rtc->rtc_dev->range_max, rtc->clkrate); - ret = rtc_register_device(rtc->rtc_dev); + ret = devm_rtc_register_device(rtc->rtc_dev); if (ret) { clk_disable_unprepare(rtc->clk); return ret; diff --git a/drivers/rtc/rtc-starfire.c b/drivers/rtc/rtc-starfire.c index 37a26279e107..fbd1ed41cbf1 100644 --- a/drivers/rtc/rtc-starfire.c +++ b/drivers/rtc/rtc-starfire.c @@ -48,7 +48,7 @@ static int __init starfire_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtc); - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct platform_driver starfire_rtc_driver = { diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c index ad616bce7bca..7cb6be1b7815 100644 --- a/drivers/rtc/rtc-stk17ta8.c +++ b/drivers/rtc/rtc-stk17ta8.c @@ -317,7 +317,7 @@ static int stk17ta8_rtc_probe(struct platform_device *pdev) if (ret) return ret; - return rtc_register_device(pdata->rtc); + return devm_rtc_register_device(pdata->rtc); } /* work with hotplug and coldplug */ diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c index 0a969af80af7..40c0f7ed36e0 100644 --- a/drivers/rtc/rtc-stmp3xxx.c +++ b/drivers/rtc/rtc-stmp3xxx.c @@ -366,7 +366,7 @@ static int stmp3xxx_rtc_probe(struct platform_device *pdev) rtc_data->rtc->ops = &stmp3xxx_rtc_ops; rtc_data->rtc->range_max = U32_MAX; - err = rtc_register_device(rtc_data->rtc); + err = devm_rtc_register_device(rtc_data->rtc); if (err) return err; diff --git a/drivers/rtc/rtc-sun4v.c b/drivers/rtc/rtc-sun4v.c index 036463dfa103..a86e27de8c06 100644 --- a/drivers/rtc/rtc-sun4v.c +++ b/drivers/rtc/rtc-sun4v.c @@ -86,7 +86,7 @@ static int __init sun4v_rtc_probe(struct platform_device *pdev) rtc->range_max = U64_MAX; platform_set_drvdata(pdev, rtc); - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct platform_driver sun4v_rtc_driver = { diff --git a/drivers/rtc/rtc-sun6i.c b/drivers/rtc/rtc-sun6i.c index a72856fb5252..536bd023c480 100644 --- a/drivers/rtc/rtc-sun6i.c +++ b/drivers/rtc/rtc-sun6i.c @@ -714,7 +714,7 @@ static int sun6i_rtc_probe(struct platform_device *pdev) chip->rtc->ops = &sun6i_rtc_ops; chip->rtc->range_max = 2019686399LL; /* 2033-12-31 23:59:59 */ - ret = rtc_register_device(chip->rtc); + ret = devm_rtc_register_device(chip->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-sunxi.c b/drivers/rtc/rtc-sunxi.c index f5d7f44550ce..5d019e3a835a 100644 --- a/drivers/rtc/rtc-sunxi.c +++ b/drivers/rtc/rtc-sunxi.c @@ -470,7 +470,7 @@ static int sunxi_rtc_probe(struct platform_device *pdev) chip->rtc->ops = &sunxi_rtc_ops; - return rtc_register_device(chip->rtc); + return devm_rtc_register_device(chip->rtc); } static struct platform_driver sunxi_rtc_driver = { diff --git a/drivers/rtc/rtc-tegra.c b/drivers/rtc/rtc-tegra.c index 7fbb1741692f..8925015cc698 100644 --- a/drivers/rtc/rtc-tegra.c +++ b/drivers/rtc/rtc-tegra.c @@ -329,7 +329,7 @@ static int tegra_rtc_probe(struct platform_device *pdev) goto disable_clk; } - ret = rtc_register_device(info->rtc); + ret = devm_rtc_register_device(info->rtc); if (ret) goto disable_clk; diff --git a/drivers/rtc/rtc-test.c b/drivers/rtc/rtc-test.c index 74b3a0603b73..b092a1648513 100644 --- a/drivers/rtc/rtc-test.c +++ b/drivers/rtc/rtc-test.c @@ -139,7 +139,7 @@ static int test_probe(struct platform_device *plat_dev) timer_setup(&rtd->alarm, test_rtc_alarm_handler, 0); rtd->alarm.expires = 0; - return rtc_register_device(rtd->rtc); + return devm_rtc_register_device(rtd->rtc); } static struct platform_driver test_driver = { diff --git a/drivers/rtc/rtc-tps6586x.c b/drivers/rtc/rtc-tps6586x.c index e39af2d67051..a980337c3065 100644 --- a/drivers/rtc/rtc-tps6586x.c +++ b/drivers/rtc/rtc-tps6586x.c @@ -280,7 +280,7 @@ static int tps6586x_rtc_probe(struct platform_device *pdev) goto fail_rtc_register; } - ret = rtc_register_device(rtc->rtc); + ret = devm_rtc_register_device(rtc->rtc); if (ret) goto fail_rtc_register; diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c index 6eec86b0b175..31fe91868e9a 100644 --- a/drivers/rtc/rtc-tps65910.c +++ b/drivers/rtc/rtc-tps65910.c @@ -434,7 +434,7 @@ static int tps65910_rtc_probe(struct platform_device *pdev) tps_rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; tps_rtc->rtc->range_max = RTC_TIMESTAMP_END_2099; - return rtc_register_device(tps_rtc->rtc); + return devm_rtc_register_device(tps_rtc->rtc); } #ifdef CONFIG_PM_SLEEP diff --git a/drivers/rtc/rtc-tx4939.c b/drivers/rtc/rtc-tx4939.c index 11f46272bad3..c3309db5448d 100644 --- a/drivers/rtc/rtc-tx4939.c +++ b/drivers/rtc/rtc-tx4939.c @@ -275,7 +275,7 @@ static int __init tx4939_rtc_probe(struct platform_device *pdev) if (ret) return ret; - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static int __exit tx4939_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c index c3671043ace7..5a9f9ad86d32 100644 --- a/drivers/rtc/rtc-vr41xx.c +++ b/drivers/rtc/rtc-vr41xx.c @@ -335,7 +335,7 @@ static int rtc_probe(struct platform_device *pdev) dev_info(&pdev->dev, "Real Time Clock of NEC VR4100 series\n"); - retval = rtc_register_device(rtc); + retval = devm_rtc_register_device(rtc); if (retval) goto err_iounmap_all; diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c index e2588625025f..197b649cd629 100644 --- a/drivers/rtc/rtc-vt8500.c +++ b/drivers/rtc/rtc-vt8500.c @@ -232,7 +232,7 @@ static int vt8500_rtc_probe(struct platform_device *pdev) return ret; } - return rtc_register_device(vt8500_rtc->rtc); + return devm_rtc_register_device(vt8500_rtc->rtc); } static int vt8500_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-wilco-ec.c b/drivers/rtc/rtc-wilco-ec.c index ff46066a68a4..2a205a646452 100644 --- a/drivers/rtc/rtc-wilco-ec.c +++ b/drivers/rtc/rtc-wilco-ec.c @@ -176,7 +176,7 @@ static int wilco_ec_rtc_probe(struct platform_device *pdev) rtc->range_max = RTC_TIMESTAMP_END_2099; rtc->owner = THIS_MODULE; - return rtc_register_device(rtc); + return devm_rtc_register_device(rtc); } static struct platform_driver wilco_ec_rtc_driver = { diff --git a/drivers/rtc/rtc-wm831x.c b/drivers/rtc/rtc-wm831x.c index ccef887d2690..640833e21057 100644 --- a/drivers/rtc/rtc-wm831x.c +++ b/drivers/rtc/rtc-wm831x.c @@ -429,7 +429,7 @@ static int wm831x_rtc_probe(struct platform_device *pdev) wm831x_rtc->rtc->ops = &wm831x_rtc_ops; wm831x_rtc->rtc->range_max = U32_MAX; - ret = rtc_register_device(wm831x_rtc->rtc); + ret = devm_rtc_register_device(wm831x_rtc->rtc); if (ret) return ret; diff --git a/drivers/rtc/rtc-xgene.c b/drivers/rtc/rtc-xgene.c index 96db441f92b3..cf68a9b1c9eb 100644 --- a/drivers/rtc/rtc-xgene.c +++ b/drivers/rtc/rtc-xgene.c @@ -185,7 +185,7 @@ static int xgene_rtc_probe(struct platform_device *pdev) pdata->rtc->ops = &xgene_rtc_ops; pdata->rtc->range_max = U32_MAX; - ret = rtc_register_device(pdata->rtc); + ret = devm_rtc_register_device(pdata->rtc); if (ret) { clk_disable_unprepare(pdata->clk); return ret; diff --git a/drivers/rtc/rtc-zynqmp.c b/drivers/rtc/rtc-zynqmp.c index 4b1077e2f826..f440bb52be92 100644 --- a/drivers/rtc/rtc-zynqmp.c +++ b/drivers/rtc/rtc-zynqmp.c @@ -264,7 +264,7 @@ static int xlnx_rtc_probe(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 1); - return rtc_register_device(xrtcdev->rtc); + return devm_rtc_register_device(xrtcdev->rtc); } static int xlnx_rtc_remove(struct platform_device *pdev) diff --git a/drivers/rtc/sysfs.c b/drivers/rtc/sysfs.c index 950fac0d41ff..8a957d31a1a4 100644 --- a/drivers/rtc/sysfs.c +++ b/drivers/rtc/sysfs.c @@ -317,8 +317,6 @@ int rtc_add_groups(struct rtc_device *rtc, const struct attribute_group **grps) size_t old_cnt = 0, add_cnt = 0, new_cnt; const struct attribute_group **groups, **old; - if (rtc->registered) - return -EINVAL; if (!grps) return -EINVAL; diff --git a/include/linux/rtc.h b/include/linux/rtc.h index cbca651d8ca4..55e7beed066c 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -118,8 +118,6 @@ struct rtc_device { */ long set_offset_nsec; - bool registered; - time64_t range_min; timeu64_t range_max; time64_t start_secs; @@ -157,7 +155,7 @@ extern struct rtc_device *devm_rtc_device_register(struct device *dev, const struct rtc_class_ops *ops, struct module *owner); struct rtc_device *devm_rtc_allocate_device(struct device *dev); -int __rtc_register_device(struct module *owner, struct rtc_device *rtc); +int __devm_rtc_register_device(struct module *owner, struct rtc_device *rtc); extern int rtc_read_time(struct rtc_device *rtc, struct rtc_time *tm); extern int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm); @@ -234,8 +232,8 @@ static inline bool rtc_tv_nsec_ok(s64 set_offset_nsec, return false; } -#define rtc_register_device(device) \ - __rtc_register_device(THIS_MODULE, device) +#define devm_rtc_register_device(device) \ + __devm_rtc_register_device(THIS_MODULE, device) #ifdef CONFIG_RTC_HCTOSYS_DEVICE extern int rtc_hctosys_ret; From patchwork Wed Aug 16 14:19:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355250 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69765C001E0 for ; Wed, 16 Aug 2023 14:20:49 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162042.1692195642925975488 for ; Wed, 16 Aug 2023 07:20:45 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100204" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:44 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id E86784210C24; Wed, 16 Aug 2023 23:20:42 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 09/31] rtc: shrink devm_rtc_allocate_device() Date: Wed, 16 Aug 2023 15:19:55 +0100 Message-Id: <20230816142017.147173-10-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:49 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12691 From: Bartosz Golaszewski commit 1bfc485b73579bff5326ac481fd9be7e24a5d5d1 upstream. We don't need to use devres_alloc() & devres_add() manually if all we want to manage is a single pointer. We can shrink the code by using devm_add_action_or_reset() instead. The number of allocations stays the same. Signed-off-by: Bartosz Golaszewski Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201109163409.24301-9-brgl@bgdev.pl Signed-off-by: Biju Das --- drivers/rtc/class.c | 29 +++++++++-------------------- 1 file changed, 9 insertions(+), 20 deletions(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 8f7b33a6cbe0..4fcd7014fe07 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -346,48 +346,37 @@ static void devm_rtc_unregister_device(void *data) put_device(&rtc->dev); } -static void devm_rtc_release_device(struct device *dev, void *res) +static void devm_rtc_release_device(void *res) { - struct rtc_device *rtc = *(struct rtc_device **)res; + struct rtc_device *rtc = res; put_device(&rtc->dev); } struct rtc_device *devm_rtc_allocate_device(struct device *dev) { - struct rtc_device **ptr, *rtc; + struct rtc_device *rtc; int id, err; id = rtc_device_get_id(dev); if (id < 0) return ERR_PTR(id); - ptr = devres_alloc(devm_rtc_release_device, sizeof(*ptr), GFP_KERNEL); - if (!ptr) { - err = -ENOMEM; - goto exit_ida; - } - rtc = rtc_allocate_device(); if (!rtc) { - err = -ENOMEM; - goto exit_devres; + ida_simple_remove(&rtc_ida, id); + return ERR_PTR(-ENOMEM); } - *ptr = rtc; - devres_add(dev, ptr); - rtc->id = id; rtc->dev.parent = dev; dev_set_name(&rtc->dev, "rtc%d", id); - return rtc; + err = devm_add_action_or_reset(dev, devm_rtc_release_device, rtc); + if (err) + return ERR_PTR(err); -exit_devres: - devres_free(ptr); -exit_ida: - ida_simple_remove(&rtc_ida, id); - return ERR_PTR(err); + return rtc; } EXPORT_SYMBOL_GPL(devm_rtc_allocate_device); From patchwork Wed Aug 16 14:19:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355251 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7200EC41513 for ; Wed, 16 Aug 2023 14:20:49 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web10.162047.1692195647395999469 for ; Wed, 16 Aug 2023 07:20:47 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787674" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:46 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 310D24210C24; Wed, 16 Aug 2023 23:20:44 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 10/31] rtc: destroy mutex when releasing the device Date: Wed, 16 Aug 2023 15:19:56 +0100 Message-Id: <20230816142017.147173-11-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:49 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12692 From: Bartosz Golaszewski commit 0d6d7a390b32ef23d957960d3bb8586a49d6af7c upstream. Not destroying mutexes doesn't lead to resource leak but it's the correct thing to do for mutex debugging accounting. Signed-off-by: Bartosz Golaszewski Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201110094205.8972-1-brgl@bgdev.pl Signed-off-by: Biju Das --- drivers/rtc/class.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 4fcd7014fe07..5a1de9078ae6 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -37,6 +37,7 @@ static void rtc_device_release(struct device *dev) cancel_work_sync(&rtc->irqwork); ida_simple_remove(&rtc_ida, rtc->id); + mutex_destroy(&rtc->ops_lock); kfree(rtc); } From patchwork Wed Aug 16 14:19:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355254 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73666C04A6A for ; Wed, 16 Aug 2023 14:20:59 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162042.1692195642925975488 for ; Wed, 16 Aug 2023 07:20:49 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100210" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:49 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 699CC4210C24; Wed, 16 Aug 2023 23:20:47 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 11/31] rtc: fix RTC removal Date: Wed, 16 Aug 2023 15:19:57 +0100 Message-Id: <20230816142017.147173-12-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:59 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12693 From: Alexandre Belloni commit f70cc33029fca3cf62bffb15102ea42eb4d097ac upstream. Since the rtc_register_device, removing an RTC device will end with a refcount_t: underflow; use-after-free warning since put_device is called twice in the device tear down path. Fixes: fdcfd854333b ("rtc: rework rtc_register_device() resource management") Signed-off-by: Alexandre Belloni Reviewed-by: Bartosz Golaszewski Link: https://lore.kernel.org/r/20201205231449.610980-1-alexandre.belloni@bootlin.com Signed-off-by: Biju Das --- drivers/rtc/class.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 5a1de9078ae6..34ee17019895 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -344,7 +344,6 @@ static void devm_rtc_unregister_device(void *data) cdev_device_del(&rtc->char_dev, &rtc->dev); rtc->ops = NULL; mutex_unlock(&rtc->ops_lock); - put_device(&rtc->dev); } static void devm_rtc_release_device(void *res) From patchwork Wed Aug 16 14:19:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355257 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83B92C04FE0 for ; Wed, 16 Aug 2023 14:20:59 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162042.1692195642925975488 for ; Wed, 16 Aug 2023 07:20:51 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100215" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:51 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id A68654210C25; Wed, 16 Aug 2023 23:20:49 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 12/31] rtc: introduce features bitfield Date: Wed, 16 Aug 2023 15:19:58 +0100 Message-Id: <20230816142017.147173-13-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:59 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12694 From: Alexandre Belloni commit 7ae41220ef5831674f446baef19bfe1b31358260 upstream. Introduce a bitfield to allow the drivers to announce the available features for an RTC. The main use case would be to better handle alarms, that could be present or not or have a minute resolution or may need a correct week day to be set. Use the newly introduced RTC_FEATURE_ALARM bit to then test whether alarms are available instead of relying on the presence of ops->set_alarm. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20210110231752.1418816-2-alexandre.belloni@bootlin.com Signed-off-by: Biju Das --- drivers/rtc/class.c | 5 +++++ drivers/rtc/interface.c | 12 ++++++------ include/linux/rtc.h | 2 ++ include/uapi/linux/rtc.h | 5 +++++ 4 files changed, 18 insertions(+), 6 deletions(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 34ee17019895..c8f4ba8b91e7 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -235,6 +235,8 @@ static struct rtc_device *rtc_allocate_device(void) rtc->pie_timer.function = rtc_pie_update_irq; rtc->pie_enabled = 0; + set_bit(RTC_FEATURE_ALARM, rtc->features); + return rtc; } @@ -390,6 +392,9 @@ int __devm_rtc_register_device(struct module *owner, struct rtc_device *rtc) return -EINVAL; } + if (!rtc->ops->set_alarm) + clear_bit(RTC_FEATURE_ALARM, rtc->features); + rtc->owner = owner; rtc_device_get_offset(rtc); diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 146056858135..4bd6dd09a1b5 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -186,7 +186,7 @@ static int rtc_read_alarm_internal(struct rtc_device *rtc, if (!rtc->ops) { err = -ENODEV; - } else if (!rtc->ops->read_alarm) { + } else if (!test_bit(RTC_FEATURE_ALARM, rtc->features) || !rtc->ops->read_alarm) { err = -EINVAL; } else { alarm->enabled = 0; @@ -392,7 +392,7 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) return err; if (!rtc->ops) { err = -ENODEV; - } else if (!rtc->ops->read_alarm) { + } else if (!test_bit(RTC_FEATURE_ALARM, rtc->features) || !rtc->ops->read_alarm) { err = -EINVAL; } else { memset(alarm, 0, sizeof(struct rtc_wkalrm)); @@ -436,7 +436,7 @@ static int __rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) if (!rtc->ops) err = -ENODEV; - else if (!rtc->ops->set_alarm) + else if (!test_bit(RTC_FEATURE_ALARM, rtc->features)) err = -EINVAL; else err = rtc->ops->set_alarm(rtc->dev.parent, alarm); @@ -451,7 +451,7 @@ int rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) if (!rtc->ops) return -ENODEV; - else if (!rtc->ops->set_alarm) + else if (!test_bit(RTC_FEATURE_ALARM, rtc->features)) return -EINVAL; err = rtc_valid_tm(&alarm->time); @@ -531,7 +531,7 @@ int rtc_alarm_irq_enable(struct rtc_device *rtc, unsigned int enabled) /* nothing */; else if (!rtc->ops) err = -ENODEV; - else if (!rtc->ops->alarm_irq_enable) + else if (!test_bit(RTC_FEATURE_ALARM, rtc->features) || !rtc->ops->alarm_irq_enable) err = -EINVAL; else err = rtc->ops->alarm_irq_enable(rtc->dev.parent, enabled); @@ -846,7 +846,7 @@ static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer) static void rtc_alarm_disable(struct rtc_device *rtc) { - if (!rtc->ops || !rtc->ops->alarm_irq_enable) + if (!rtc->ops || !test_bit(RTC_FEATURE_ALARM, rtc->features) || !rtc->ops->alarm_irq_enable) return; rtc->ops->alarm_irq_enable(rtc->dev.parent, false); diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 55e7beed066c..31d2a856041b 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -118,6 +118,8 @@ struct rtc_device { */ long set_offset_nsec; + unsigned long features[BITS_TO_LONGS(RTC_FEATURE_CNT)]; + time64_t range_min; timeu64_t range_max; time64_t start_secs; diff --git a/include/uapi/linux/rtc.h b/include/uapi/linux/rtc.h index fa9aff91cbf2..f950bff75e97 100644 --- a/include/uapi/linux/rtc.h +++ b/include/uapi/linux/rtc.h @@ -110,6 +110,11 @@ struct rtc_pll_info { #define RTC_AF 0x20 /* Alarm interrupt */ #define RTC_UF 0x10 /* Update interrupt for 1Hz RTC */ +/* feature list */ +#define RTC_FEATURE_ALARM 0 +#define RTC_FEATURE_ALARM_RES_MINUTE 1 +#define RTC_FEATURE_NEED_WEEK_DAY 2 +#define RTC_FEATURE_CNT 3 #define RTC_MAX_FREQ 8192 From patchwork Wed Aug 16 14:19:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355256 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B5BDC04E69 for ; Wed, 16 Aug 2023 14:20:59 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161754.1692195654103012015 for ; Wed, 16 Aug 2023 07:20:54 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787681" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:53 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id E0DF24210C28; Wed, 16 Aug 2023 23:20:51 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 13/31] rtc: class: don't call cdev_device_del() when cdev_device_add() failed Date: Wed, 16 Aug 2023 15:19:59 +0100 Message-Id: <20230816142017.147173-14-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:59 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12695 From: Yang Yingliang commit 789c1093f02c436b320d78a739f9610c8271cb73 upstream. I got a null-ptr-deref report when doing fault injection test: general protection fault, probably for non-canonical address 0xdffffc0000000022: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000110-0x0000000000000117] RIP: 0010:device_del+0x132/0xdc0 Call Trace: cdev_device_del+0x1a/0x80 devm_rtc_unregister_device+0x37/0x80 release_nodes+0xc3/0x3b0 If cdev_device_add() fails, 'dev->p' is not set, it causes null-ptr-deref when calling cdev_device_del(). Registering character device is optional, we don't return error code here, so introduce a new flag 'RTC_NO_CDEV' to indicate if it has character device, cdev_device_del() is called when this bit is not set. Reported-by: Hulk Robot Signed-off-by: Yang Yingliang Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20211011132114.3663509-1-yangyingliang@huawei.com Signed-off-by: Biju Das --- drivers/rtc/class.c | 9 ++++++--- include/linux/rtc.h | 1 + 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index c8f4ba8b91e7..99ee40642cb6 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -343,7 +343,8 @@ static void devm_rtc_unregister_device(void *data) * letting any rtc_class_open() users access it again */ rtc_proc_del_device(rtc); - cdev_device_del(&rtc->char_dev, &rtc->dev); + if (!test_bit(RTC_NO_CDEV, &rtc->flags)) + cdev_device_del(&rtc->char_dev, &rtc->dev); rtc->ops = NULL; mutex_unlock(&rtc->ops_lock); } @@ -406,12 +407,14 @@ int __devm_rtc_register_device(struct module *owner, struct rtc_device *rtc) rtc_dev_prepare(rtc); err = cdev_device_add(&rtc->char_dev, &rtc->dev); - if (err) + if (err) { + set_bit(RTC_NO_CDEV, &rtc->flags); dev_warn(rtc->dev.parent, "failed to add char device %d:%d\n", MAJOR(rtc->dev.devt), rtc->id); - else + } else { dev_dbg(rtc->dev.parent, "char device (%d:%d)\n", MAJOR(rtc->dev.devt), rtc->id); + } rtc_proc_add_device(rtc); diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 31d2a856041b..72851fe4f8e7 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -80,6 +80,7 @@ struct rtc_timer { /* flags */ #define RTC_DEV_BUSY 0 +#define RTC_NO_CDEV 1 struct rtc_device { struct device dev; From patchwork Wed Aug 16 14:20:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355258 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7191DC41513 for ; Wed, 16 Aug 2023 14:20:59 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161754.1692195654103012015 for ; Wed, 16 Aug 2023 07:20:56 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787685" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:55 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 25B954210C25; Wed, 16 Aug 2023 23:20:53 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 14/31] rtc: class: check return value when calling dev_set_name() Date: Wed, 16 Aug 2023 15:20:00 +0100 Message-Id: <20230816142017.147173-15-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:59 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12696 From: Yang Yingliang commit 24d23181e43d72ca692a479e70dfe5b0b5dd33f1 upstream. I got a null-ptr-deref report when doing fault injection test: BUG: kernel NULL pointer dereference, address: 0000000000000000 RIP: 0010:strcmp+0xc/0x20 Call Trace: __devm_rtc_register_device.cold.7+0x16a/0x2df rv3029_probe+0x4b1/0x770 [rtc_rv3029c2] rv3029_i2c_probe+0x141/0x180 [rtc_rv3029c2] i2c_device_probe+0xa07/0xbb0 really_probe+0x285/0xc30 If dev_set_name() fails, dev_name() is null, it causes null-ptr-deref, we need check the return value of dev_set_name(). Reported-by: Hulk Robot Signed-off-by: Yang Yingliang Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20211012041629.2504158-1-yangyingliang@huawei.com Signed-off-by: Biju Das --- drivers/rtc/class.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 99ee40642cb6..edd84ee38005 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -373,7 +373,9 @@ struct rtc_device *devm_rtc_allocate_device(struct device *dev) rtc->id = id; rtc->dev.parent = dev; - dev_set_name(&rtc->dev, "rtc%d", id); + err = dev_set_name(&rtc->dev, "rtc%d", id); + if (err) + return ERR_PTR(err); err = devm_add_action_or_reset(dev, devm_rtc_release_device, rtc); if (err) From patchwork Wed Aug 16 14:20:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355255 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6AF76C001E0 for ; Wed, 16 Aug 2023 14:20:59 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161754.1692195654103012015 for ; Wed, 16 Aug 2023 07:20:58 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787689" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:20:58 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 5DDE64210C28; Wed, 16 Aug 2023 23:20:56 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 15/31] rtc: add alarm related features Date: Wed, 16 Aug 2023 15:20:01 +0100 Message-Id: <20230816142017.147173-16-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:20:59 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12697 From: Alexandre Belloni commit 917425f71f36ce6f61841497040e10d0166106d8 upstream. Add more alarm related features to be declared by drivers. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20211018151933.76865-2-alexandre.belloni@bootlin.com Signed-off-by: Biju Das --- include/uapi/linux/rtc.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/include/uapi/linux/rtc.h b/include/uapi/linux/rtc.h index f950bff75e97..f4037c541925 100644 --- a/include/uapi/linux/rtc.h +++ b/include/uapi/linux/rtc.h @@ -114,7 +114,9 @@ struct rtc_pll_info { #define RTC_FEATURE_ALARM 0 #define RTC_FEATURE_ALARM_RES_MINUTE 1 #define RTC_FEATURE_NEED_WEEK_DAY 2 -#define RTC_FEATURE_CNT 3 +#define RTC_FEATURE_ALARM_RES_2S 3 +#define RTC_FEATURE_UPDATE_INTERRUPT 4 +#define RTC_FEATURE_CNT 5 #define RTC_MAX_FREQ 8192 From patchwork Wed Aug 16 14:20:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355261 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FF2FC04A6A for ; Wed, 16 Aug 2023 14:21:09 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162057.1692195660973914437 for ; Wed, 16 Aug 2023 07:21:01 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100222" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:00 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 9844F4210C25; Wed, 16 Aug 2023 23:20:58 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 16/31] rtc: expose correction feature Date: Wed, 16 Aug 2023 15:20:02 +0100 Message-Id: <20230816142017.147173-17-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:09 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12698 From: Alexandre Belloni commit 2268551935dbf1abcbb4d4fb7b1ad74dbe0d1be0 upstream. Add a new feature for RTCs able to correct the oscillator imprecision. This is also called offset or trimming. Such drivers have a .set_offset callback, use that to set the feature bit from the core. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20211018151933.76865-4-alexandre.belloni@bootlin.com Signed-off-by: Biju Das --- drivers/rtc/class.c | 3 +++ include/uapi/linux/rtc.h | 3 ++- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index edd84ee38005..f521b90fa182 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -398,6 +398,9 @@ int __devm_rtc_register_device(struct module *owner, struct rtc_device *rtc) if (!rtc->ops->set_alarm) clear_bit(RTC_FEATURE_ALARM, rtc->features); + if (rtc->ops->set_offset) + set_bit(RTC_FEATURE_CORRECTION, rtc->features); + rtc->owner = owner; rtc_device_get_offset(rtc); diff --git a/include/uapi/linux/rtc.h b/include/uapi/linux/rtc.h index f4037c541925..ef5113d061c4 100644 --- a/include/uapi/linux/rtc.h +++ b/include/uapi/linux/rtc.h @@ -116,7 +116,8 @@ struct rtc_pll_info { #define RTC_FEATURE_NEED_WEEK_DAY 2 #define RTC_FEATURE_ALARM_RES_2S 3 #define RTC_FEATURE_UPDATE_INTERRUPT 4 -#define RTC_FEATURE_CNT 5 +#define RTC_FEATURE_CORRECTION 5 +#define RTC_FEATURE_CNT 6 #define RTC_MAX_FREQ 8192 From patchwork Wed Aug 16 14:20:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355259 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7CC66C04E69 for ; Wed, 16 Aug 2023 14:21:09 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162057.1692195660973914437 for ; Wed, 16 Aug 2023 07:21:03 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100225" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:02 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 01DCA4210C24; Wed, 16 Aug 2023 23:21:00 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 17/31] rtc: rtc_update_irq_enable: rework UIE emulation Date: Wed, 16 Aug 2023 15:20:03 +0100 Message-Id: <20230816142017.147173-18-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:09 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12699 From: Alexandre Belloni commit c55c3a516ceff3a041d5e3253d4d9a1b75fbb1d8 upstream. Now that the core is aware of whether alarms are available, it is possible to decide whether UIE emulation is required before actually trying to set the alarm. This greatly simplifies rtc_update_irq_enable because there is now only one error value to track and is not relying on the return value of __rtc_set_alarm anymore. Tested-by: Łukasz Stelmach Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20210418000023.995758-3-alexandre.belloni@bootlin.com Signed-off-by: Biju Das --- drivers/rtc/interface.c | 34 ++++++++++------------------------ 1 file changed, 10 insertions(+), 24 deletions(-) diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 4bd6dd09a1b5..3ee17c4d7298 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -545,7 +545,7 @@ EXPORT_SYMBOL_GPL(rtc_alarm_irq_enable); int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) { - int rc = 0, err; + int err; err = mutex_lock_interruptible(&rtc->ops_lock); if (err) @@ -561,17 +561,21 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) if (rtc->uie_rtctimer.enabled == enabled) goto out; - if (rtc->uie_unsupported) { - err = -EINVAL; - goto out; + if (rtc->uie_unsupported || !test_bit(RTC_FEATURE_ALARM, rtc->features)) { + mutex_unlock(&rtc->ops_lock); +#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL + return rtc_dev_update_irq_enable_emul(rtc, enabled); +#else + return -EINVAL; +#endif } if (enabled) { struct rtc_time tm; ktime_t now, onesec; - rc = __rtc_read_time(rtc, &tm); - if (rc) + err = __rtc_read_time(rtc, &tm); + if (err) goto out; onesec = ktime_set(1, 0); now = rtc_tm_to_ktime(tm); @@ -585,24 +589,6 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) out: mutex_unlock(&rtc->ops_lock); - /* - * __rtc_read_time() failed, this probably means that the RTC time has - * never been set or less probably there is a transient error on the - * bus. In any case, avoid enabling emulation has this will fail when - * reading the time too. - */ - if (rc) - return rc; - -#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL - /* - * Enable emulation if the driver returned -EINVAL to signal that it has - * been configured without interrupts or they are not available at the - * moment. - */ - if (err == -EINVAL) - err = rtc_dev_update_irq_enable_emul(rtc, enabled); -#endif return err; } EXPORT_SYMBOL_GPL(rtc_update_irq_enable); From patchwork Wed Aug 16 14:20:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355262 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B1BBC001E0 for ; Wed, 16 Aug 2023 14:21:09 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162057.1692195660973914437 for ; Wed, 16 Aug 2023 07:21:05 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100229" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:04 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 3B79E4210C30; Wed, 16 Aug 2023 23:21:02 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 18/31] rtc: expose RTC_FEATURE_UPDATE_INTERRUPT Date: Wed, 16 Aug 2023 15:20:04 +0100 Message-Id: <20230816142017.147173-19-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:09 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12700 From: Alexandre Belloni commit adb17a053e460f20740d713c4843d6966e66b1b1 upstream. Set RTC_FEATURE_UPDATE_INTERRUPT by default and clear it when it is not supported. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20211018152337.78732-1-alexandre.belloni@bootlin.com Signed-off-by: Biju Das --- drivers/rtc/class.c | 4 ++++ drivers/rtc/interface.c | 3 ++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index f521b90fa182..431f16efed2d 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -236,6 +236,7 @@ static struct rtc_device *rtc_allocate_device(void) rtc->pie_enabled = 0; set_bit(RTC_FEATURE_ALARM, rtc->features); + set_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features); return rtc; } @@ -398,6 +399,9 @@ int __devm_rtc_register_device(struct module *owner, struct rtc_device *rtc) if (!rtc->ops->set_alarm) clear_bit(RTC_FEATURE_ALARM, rtc->features); + if (rtc->uie_unsupported) + clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features); + if (rtc->ops->set_offset) set_bit(RTC_FEATURE_CORRECTION, rtc->features); diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 3ee17c4d7298..e95b06aa8fd7 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -561,7 +561,8 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) if (rtc->uie_rtctimer.enabled == enabled) goto out; - if (rtc->uie_unsupported || !test_bit(RTC_FEATURE_ALARM, rtc->features)) { + if (!test_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features) || + !test_bit(RTC_FEATURE_ALARM, rtc->features)) { mutex_unlock(&rtc->ops_lock); #ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL return rtc_dev_update_irq_enable_emul(rtc, enabled); From patchwork Wed Aug 16 14:20:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355260 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FF06C41513 for ; Wed, 16 Aug 2023 14:21:09 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161762.1692195667914663381 for ; Wed, 16 Aug 2023 07:21:08 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787701" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:07 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 750514210C2B; Wed, 16 Aug 2023 23:21:05 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 19/31] rtc: class: Fix potential memleak in devm_rtc_allocate_device() Date: Wed, 16 Aug 2023 15:20:05 +0100 Message-Id: <20230816142017.147173-20-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:09 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12701 From: Shang XiaoJing commit 60da73808298ff2cfa9f165d55eb3d7aa7078601 upstream. devm_rtc_allocate_device() will alloc a rtc_device first, and then run dev_set_name(). If dev_set_name() failed, the rtc_device will memleak. Move devm_add_action_or_reset() in front of dev_set_name() to prevent memleak. unreferenced object 0xffff888110a53000 (size 2048): comm "python3", pid 470, jiffies 4296078308 (age 58.882s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 08 30 a5 10 81 88 ff ff .........0...... 08 30 a5 10 81 88 ff ff 00 00 00 00 00 00 00 00 .0.............. backtrace: [<000000004aac0364>] kmalloc_trace+0x21/0x110 [<000000000ff02202>] devm_rtc_allocate_device+0xd4/0x400 [<000000001bdf5639>] devm_rtc_device_register+0x1a/0x80 [<00000000351bf81c>] rx4581_probe+0xdd/0x110 [rtc_rx4581] [<00000000f0eba0ae>] spi_probe+0xde/0x130 [<00000000bff89ee8>] really_probe+0x175/0x3f0 [<00000000128e8d84>] __driver_probe_device+0xe6/0x170 [<00000000ee5bf913>] device_driver_attach+0x32/0x80 [<00000000f3f28f92>] bind_store+0x10b/0x1a0 [<000000009ff812d8>] drv_attr_store+0x49/0x70 [<000000008139c323>] sysfs_kf_write+0x8d/0xb0 [<00000000b6146e01>] kernfs_fop_write_iter+0x214/0x2d0 [<00000000ecbe3895>] vfs_write+0x61a/0x7d0 [<00000000aa2196ea>] ksys_write+0xc8/0x190 [<0000000046a600f5>] do_syscall_64+0x37/0x90 [<00000000541a336f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd Fixes: 24d23181e43d ("rtc: class: check return value when calling dev_set_name()") Signed-off-by: Shang XiaoJing Reviewed-by: Yang Yingliang Link: https://lore.kernel.org/r/20221110090810.11225-1-shangxiaojing@huawei.com Signed-off-by: Alexandre Belloni Signed-off-by: Biju Das --- drivers/rtc/class.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 431f16efed2d..c516c215c431 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -374,11 +374,11 @@ struct rtc_device *devm_rtc_allocate_device(struct device *dev) rtc->id = id; rtc->dev.parent = dev; - err = dev_set_name(&rtc->dev, "rtc%d", id); + err = devm_add_action_or_reset(dev, devm_rtc_release_device, rtc); if (err) return ERR_PTR(err); - err = devm_add_action_or_reset(dev, devm_rtc_release_device, rtc); + err = dev_set_name(&rtc->dev, "rtc%d", id); if (err) return ERR_PTR(err); From patchwork Wed Aug 16 14:20:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355263 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6F72EC001E0 for ; Wed, 16 Aug 2023 14:21:19 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162057.1692195660973914437 for ; Wed, 16 Aug 2023 07:21:10 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100239" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:09 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id DFFE74210C30; Wed, 16 Aug 2023 23:21:07 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 20/31] rtc: isl1208: quiet maybe-unused variable warning Date: Wed, 16 Aug 2023 15:20:06 +0100 Message-Id: <20230816142017.147173-21-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:19 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12702 From: Alexandre Belloni commit 413b7841f166d851105654c27ade51384d36f003 upstream. When CONFIG_OF is disabled then the matching table is not referenced. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20210202112219.3610853-9-alexandre.belloni@bootlin.com Signed-off-by: Biju Das --- drivers/rtc/rtc-isl1208.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index 563a6d9c9fcf..182dfa605515 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -99,7 +99,7 @@ static const struct i2c_device_id isl1208_id[] = { }; MODULE_DEVICE_TABLE(i2c, isl1208_id); -static const struct of_device_id isl1208_of_match[] = { +static const __maybe_unused struct of_device_id isl1208_of_match[] = { { .compatible = "isil,isl1208", .data = &isl1208_configs[TYPE_ISL1208] }, { .compatible = "isil,isl1209", .data = &isl1208_configs[TYPE_ISL1209] }, { .compatible = "isil,isl1218", .data = &isl1208_configs[TYPE_ISL1218] }, From patchwork Wed Aug 16 14:20:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355265 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C54AC04A6A for ; Wed, 16 Aug 2023 14:21:19 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web10.162057.1692195660973914437 for ; Wed, 16 Aug 2023 07:21:12 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100243" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:11 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 250C94210C24; Wed, 16 Aug 2023 23:21:09 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 21/31] rtc: isl1208: do not advertise update interrupt feature if no interrupt specified Date: Wed, 16 Aug 2023 15:20:07 +0100 Message-Id: <20230816142017.147173-22-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:19 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12703 From: Quentin Schulz commit 2023c5c8fe2e85ec7491d5a470fcca48f8144c02 upstream. If an ISL1208 device does not have an interrupt line routed, the feature shouldn't be advertised (it is by default in rtc core) or it'll confuse userspace requesting that feature (such as hwclock from util-linux). Signed-off-by: Quentin Schulz Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20220523145320.123713-1-foss+kernel@0leil.net Signed-off-by: Biju Das --- drivers/rtc/rtc-isl1208.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index 182dfa605515..f448a525333e 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -880,10 +880,14 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) if (rc) return rc; - if (client->irq > 0) + if (client->irq > 0) { rc = isl1208_setup_irq(client, client->irq); - if (rc) - return rc; + if (rc) + return rc; + + } else { + clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, isl1208->rtc->features); + } if (evdet_irq > 0 && evdet_irq != client->irq) rc = isl1208_setup_irq(client, evdet_irq); From patchwork Wed Aug 16 14:20:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355266 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 718E4C04E69 for ; Wed, 16 Aug 2023 14:21:19 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161767.1692195674774557236 for ; Wed, 16 Aug 2023 07:21:15 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787709" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:14 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 5FA504210C24; Wed, 16 Aug 2023 23:21:12 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 22/31] dt-bindings: rtc: isl1208: Convert to json-schema Date: Wed, 16 Aug 2023 15:20:08 +0100 Message-Id: <20230816142017.147173-23-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:19 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12704 commit ac739bac5201d4308cba2525dacb5da654b3ff31 upstream. Convert the isl1208 RTC device tree binding documentation to json-schema. Update the example to match reality. Signed-off-by: Biju Das Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20230623140948.384762-5-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni Signed-off-by: Biju Das --- .../devicetree/bindings/rtc/isil,isl1208.txt | 38 -------- .../devicetree/bindings/rtc/isil,isl1208.yaml | 89 +++++++++++++++++++ 2 files changed, 89 insertions(+), 38 deletions(-) delete mode 100644 Documentation/devicetree/bindings/rtc/isil,isl1208.txt create mode 100644 Documentation/devicetree/bindings/rtc/isil,isl1208.yaml diff --git a/Documentation/devicetree/bindings/rtc/isil,isl1208.txt b/Documentation/devicetree/bindings/rtc/isil,isl1208.txt deleted file mode 100644 index 51f003006f04..000000000000 --- a/Documentation/devicetree/bindings/rtc/isil,isl1208.txt +++ /dev/null @@ -1,38 +0,0 @@ -Intersil ISL1209/19 I2C RTC/Alarm chip with event in - -ISL12X9 have additional pins EVIN and #EVDET for tamper detection, while the -ISL1208 and ISL1218 do not. They are all use the same driver with the bindings -described here, with chip specific properties as noted. - -Required properties supported by the device: - - "compatible": Should be one of the following: - - "isil,isl1208" - - "isil,isl1209" - - "isil,isl1218" - - "isil,isl1219" - - "reg": I2C bus address of the device - -Optional properties: - - "interrupt-names": list which may contains "irq" and "evdet" - evdet applies to isl1209 and isl1219 only - - "interrupts": list of interrupts for "irq" and "evdet" - evdet applies to isl1209 and isl1219 only - - "isil,ev-evienb": Enable or disable internal pull on EVIN pin - Applies to isl1209 and isl1219 only - Possible values are 0 and 1 - Value 0 enables internal pull-up on evin pin, 1 disables it. - Default will leave the non-volatile configuration of the pullup - as is. - -Example isl1219 node with #IRQ pin connected to SoC gpio1 pin12 and #EVDET pin -connected to SoC gpio2 pin 24 and internal pull-up enabled in EVIN pin. - - isl1219: rtc@68 { - compatible = "isil,isl1219"; - reg = <0x68>; - interrupt-names = "irq", "evdet"; - interrupts-extended = <&gpio1 12 IRQ_TYPE_EDGE_FALLING>, - <&gpio2 24 IRQ_TYPE_EDGE_FALLING>; - isil,ev-evienb = <1>; - }; - diff --git a/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml b/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml new file mode 100644 index 000000000000..565965147ce6 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml @@ -0,0 +1,89 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/isil,isl1208.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Intersil ISL1209/19 I2C RTC/Alarm chip with event in + +maintainers: + - Biju Das + - Trent Piepho + +description: + ISL12X9 have additional pins EVIN and EVDET for tamper detection, while the + ISL1208 and ISL1218 do not. + +properties: + compatible: + enum: + - isil,isl1208 + - isil,isl1209 + - isil,isl1218 + - isil,isl1219 + + reg: + maxItems: 1 + + interrupts: + minItems: 1 + maxItems: 2 + + interrupt-names: + minItems: 1 + items: + - const: irq + - const: evdet + + isil,ev-evienb: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 0, 1 ] + description: | + Enable or disable internal pull on EVIN pin + Default will leave the non-volatile configuration of the pullup + as is. + <0> : Enables internal pull-up on evin pin + <1> : Disables internal pull-up on evin pin + +required: + - compatible + - reg + +allOf: + - $ref: rtc.yaml# + - if: + properties: + compatible: + contains: + enum: + - isil,isl1209 + - isil,isl1219 + then: + properties: + interrupts: + maxItems: 2 + interrupt-names: + items: + - const: irq + - const: evdet + else: + properties: + interrupts: + maxItems: 1 + interrupt-names: + items: + - const: irq + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + rtc_twi: rtc@6f { + compatible = "isil,isl1208"; + reg = <0x6f>; + }; + }; From patchwork Wed Aug 16 14:20:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355264 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6F81BC41513 for ; Wed, 16 Aug 2023 14:21:19 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161767.1692195674774557236 for ; Wed, 16 Aug 2023 07:21:16 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787712" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:16 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id CBA4A4210C30; Wed, 16 Aug 2023 23:21:14 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 23/31] dt-bindings: rtc: isil,isl1208: Document clock and clock-names properties Date: Wed, 16 Aug 2023 15:20:09 +0100 Message-Id: <20230816142017.147173-24-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:19 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12705 commit 138f352556d791d7e0ca3ac9a4f4815123af8c82 upstream. As per the HW manual, XTOSCB bit setting is as follows If using an external clock signal, set the XTOSCB bit as 1 to disable the crystal oscillator. If using an external crystal, the XTOSCB bit needs to be set at 0 to enable the crystal oscillator. Document clock and clock-names properties. Signed-off-by: Biju Das Reviewed-by: Conor Dooley Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230623140948.384762-6-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni Signed-off-by: Biju Das --- .../devicetree/bindings/rtc/isil,isl1208.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml b/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml index 565965147ce6..11f7378d4997 100644 --- a/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml +++ b/Documentation/devicetree/bindings/rtc/isil,isl1208.yaml @@ -25,6 +25,17 @@ properties: reg: maxItems: 1 + clocks: + maxItems: 1 + + clock-names: + description: | + Use xin, if connected to an external crystal. + Use clkin, if connected to an external clock signal. + enum: + - xin + - clkin + interrupts: minItems: 1 maxItems: 2 From patchwork Wed Aug 16 14:20:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355267 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FAFDC04E69 for ; Wed, 16 Aug 2023 14:21:29 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web11.161771.1692195679282117494 for ; Wed, 16 Aug 2023 07:21:19 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100249" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:18 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 10EF54210C24; Wed, 16 Aug 2023 23:21:16 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 24/31] rtc: isl1208: Drop name variable Date: Wed, 16 Aug 2023 15:20:10 +0100 Message-Id: <20230816142017.147173-25-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:29 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12706 commit 380960c40a1d106bba3476c9a010eaf28195115d upstream. Drop unused name variable from struct isl1208_config. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230623140948.384762-7-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni Signed-off-by: Biju Das --- drivers/rtc/rtc-isl1208.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index f448a525333e..1716c0c3b550 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -79,15 +79,14 @@ enum isl1208_id { /* Chip capabilities table */ static const struct isl1208_config { - const char name[8]; unsigned int nvmem_length; unsigned has_tamper:1; unsigned has_timestamp:1; } isl1208_configs[] = { - [TYPE_ISL1208] = { "isl1208", 2, false, false }, - [TYPE_ISL1209] = { "isl1209", 2, true, false }, - [TYPE_ISL1218] = { "isl1218", 8, false, false }, - [TYPE_ISL1219] = { "isl1219", 2, true, true }, + [TYPE_ISL1208] = { 2, false, false }, + [TYPE_ISL1209] = { 2, true, false }, + [TYPE_ISL1218] = { 8, false, false }, + [TYPE_ISL1219] = { 2, true, true }, }; static const struct i2c_device_id isl1208_id[] = { From patchwork Wed Aug 16 14:20:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355269 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7923CC04FDF for ; Wed, 16 Aug 2023 14:21:29 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161767.1692195674774557236 for ; Wed, 16 Aug 2023 07:21:21 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787716" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:20 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 49D034210C2B; Wed, 16 Aug 2023 23:21:19 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 25/31] rtc: isl1208: Make similar I2C and DT-based matching table Date: Wed, 16 Aug 2023 15:20:11 +0100 Message-Id: <20230816142017.147173-26-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:29 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12707 commit fbc06a53561c64ec6d7f9a1b3bc04597de4cbb2d upstream. The isl1208_id[].driver_data could store a pointer to the config, like for DT-based matching, making I2C and DT-based matching more similar. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230623140948.384762-8-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni Signed-off-by: Biju Das --- drivers/rtc/rtc-isl1208.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index 1716c0c3b550..67487a784e58 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -90,10 +90,10 @@ static const struct isl1208_config { }; static const struct i2c_device_id isl1208_id[] = { - { "isl1208", TYPE_ISL1208 }, - { "isl1209", TYPE_ISL1209 }, - { "isl1218", TYPE_ISL1218 }, - { "isl1219", TYPE_ISL1219 }, + { "isl1208", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1208] }, + { "isl1209", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1209] }, + { "isl1218", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1218] }, + { "isl1219", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1219] }, { } }; MODULE_DEVICE_TABLE(i2c, isl1208_id); @@ -820,9 +820,9 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) if (!isl1208->config) return -ENODEV; } else { - if (id->driver_data >= ISL_LAST_ID) + if (!id) return -ENODEV; - isl1208->config = &isl1208_configs[id->driver_data]; + isl1208->config = (struct isl1208_config *)id->driver_data; } isl1208->rtc = devm_rtc_allocate_device(&client->dev); From patchwork Wed Aug 16 14:20:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355270 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 794C3C04FE0 for ; Wed, 16 Aug 2023 14:21:29 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161767.1692195674774557236 for ; Wed, 16 Aug 2023 07:21:23 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787719" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:23 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 82E064210C24; Wed, 16 Aug 2023 23:21:21 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 26/31] rtc: isl1208: Drop enum isl1208_id and split isl1208_configs[] Date: Wed, 16 Aug 2023 15:20:12 +0100 Message-Id: <20230816142017.147173-27-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:29 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12708 commit 5923fc75d0dfcebce53894ddada7e2440d756f8b upstream. Drop enum isl1208_id and split the array isl1208_configs[] as individual variables, and make lines shorter by referring to e.g. &config_isl1219 instead of &isl1208_configs[TYPE_ISL1219]. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230623140948.384762-9-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni Signed-off-by: Biju Das --- drivers/rtc/rtc-isl1208.c | 56 +++++++++++++++++++++++---------------- 1 file changed, 33 insertions(+), 23 deletions(-) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index 67487a784e58..80ecb724ae6b 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -68,41 +68,51 @@ static struct i2c_driver isl1208_driver; -/* ISL1208 various variants */ -enum isl1208_id { - TYPE_ISL1208 = 0, - TYPE_ISL1209, - TYPE_ISL1218, - TYPE_ISL1219, - ISL_LAST_ID -}; - /* Chip capabilities table */ -static const struct isl1208_config { +struct isl1208_config { unsigned int nvmem_length; unsigned has_tamper:1; unsigned has_timestamp:1; -} isl1208_configs[] = { - [TYPE_ISL1208] = { 2, false, false }, - [TYPE_ISL1209] = { 2, true, false }, - [TYPE_ISL1218] = { 8, false, false }, - [TYPE_ISL1219] = { 2, true, true }, +}; + +static const struct isl1208_config config_isl1208 = { + .nvmem_length = 2, + .has_tamper = false, + .has_timestamp = false +}; + +static const struct isl1208_config config_isl1209 = { + .nvmem_length = 2, + .has_tamper = true, + .has_timestamp = false +}; + +static const struct isl1208_config config_isl1218 = { + .nvmem_length = 8, + .has_tamper = false, + .has_timestamp = false +}; + +static const struct isl1208_config config_isl1219 = { + .nvmem_length = 2, + .has_tamper = true, + .has_timestamp = true }; static const struct i2c_device_id isl1208_id[] = { - { "isl1208", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1208] }, - { "isl1209", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1209] }, - { "isl1218", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1218] }, - { "isl1219", .driver_data = (kernel_ulong_t)&isl1208_configs[TYPE_ISL1219] }, + { "isl1208", .driver_data = (kernel_ulong_t)&config_isl1208 }, + { "isl1209", .driver_data = (kernel_ulong_t)&config_isl1209 }, + { "isl1218", .driver_data = (kernel_ulong_t)&config_isl1218 }, + { "isl1219", .driver_data = (kernel_ulong_t)&config_isl1219 }, { } }; MODULE_DEVICE_TABLE(i2c, isl1208_id); static const __maybe_unused struct of_device_id isl1208_of_match[] = { - { .compatible = "isil,isl1208", .data = &isl1208_configs[TYPE_ISL1208] }, - { .compatible = "isil,isl1209", .data = &isl1208_configs[TYPE_ISL1209] }, - { .compatible = "isil,isl1218", .data = &isl1208_configs[TYPE_ISL1218] }, - { .compatible = "isil,isl1219", .data = &isl1208_configs[TYPE_ISL1219] }, + { .compatible = "isil,isl1208", .data = &config_isl1208 }, + { .compatible = "isil,isl1209", .data = &config_isl1209 }, + { .compatible = "isil,isl1218", .data = &config_isl1218 }, + { .compatible = "isil,isl1219", .data = &config_isl1219 }, { } }; MODULE_DEVICE_TABLE(of, isl1208_of_match); From patchwork Wed Aug 16 14:20:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355271 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6F70EC41513 for ; Wed, 16 Aug 2023 14:21:29 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web11.161772.1692195686088194603 for ; Wed, 16 Aug 2023 07:21:26 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100254" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:25 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id BC7CF4210C30; Wed, 16 Aug 2023 23:21:23 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 27/31] rtc: isl1208: Add isl1208_set_xtoscb() Date: Wed, 16 Aug 2023 15:20:13 +0100 Message-Id: <20230816142017.147173-28-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:29 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12709 commit 262f72b4656e182eefaab91ab24a7575dda5524f upstream. As per the HW manual, set the XTOSCB bit as follows: If using an external clock signal, set the XTOSCB bit as 1 to disable the crystal oscillator. If using an external crystal, the XTOSCB bit needs to be set at 0 to enable the crystal oscillator. Add isl1208_set_xtoscb() to set XTOSCB bit based on the clock-names property. Fallback is enabling the internal crystal oscillator. While at it, introduce a variable "sr" for reading the status register in probe() as it is reused for writing and also remove the unnecessary blank line. Signed-off-by: Biju Das Link: https://lore.kernel.org/r/20230623140948.384762-10-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni Signed-off-by: Biju Das --- drivers/rtc/rtc-isl1208.c | 57 ++++++++++++++++++++++++++++++++++----- 1 file changed, 51 insertions(+), 6 deletions(-) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index 80ecb724ae6b..915f23668228 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -6,6 +6,7 @@ */ #include +#include #include #include #include @@ -175,6 +176,20 @@ isl1208_i2c_validate_client(struct i2c_client *client) return 0; } +static int isl1208_set_xtoscb(struct i2c_client *client, int sr, int xtosb_val) +{ + /* Do nothing if bit is already set to desired value */ + if ((sr & ISL1208_REG_SR_XTOSCB) == xtosb_val) + return 0; + + if (xtosb_val) + sr |= ISL1208_REG_SR_XTOSCB; + else + sr &= ~ISL1208_REG_SR_XTOSCB; + + return i2c_smbus_write_byte_data(client, ISL1208_REG_SR, sr); +} + static int isl1208_i2c_get_sr(struct i2c_client *client) { @@ -511,7 +526,6 @@ isl1208_i2c_set_time(struct i2c_client *client, struct rtc_time const *tm) return 0; } - static int isl1208_rtc_set_time(struct device *dev, struct rtc_time *tm) { @@ -805,12 +819,26 @@ static int isl1208_setup_irq(struct i2c_client *client, int irq) return rc; } +static int +isl1208_clk_present(struct i2c_client *client, const char *name) +{ + struct clk *clk; + + clk = devm_clk_get_optional(&client->dev, name); + if (IS_ERR(clk)) + return PTR_ERR(clk); + + return !!clk; +} + static int isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) { - int rc = 0; struct isl1208_state *isl1208; int evdet_irq = -1; + int xtosb_val = 0; + int rc = 0; + int sr; if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) return -ENODEV; @@ -835,6 +863,19 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) isl1208->config = (struct isl1208_config *)id->driver_data; } + rc = isl1208_clk_present(client, "xin"); + if (rc < 0) + return rc; + + if (!rc) { + rc = isl1208_clk_present(client, "clkin"); + if (rc < 0) + return rc; + + if (rc) + xtosb_val = 1; + } + isl1208->rtc = devm_rtc_allocate_device(&client->dev); if (IS_ERR(isl1208->rtc)) return PTR_ERR(isl1208->rtc); @@ -846,13 +887,17 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) isl1208->nvmem_config.size = isl1208->config->nvmem_length; isl1208->nvmem_config.priv = isl1208; - rc = isl1208_i2c_get_sr(client); - if (rc < 0) { + sr = isl1208_i2c_get_sr(client); + if (sr < 0) { dev_err(&client->dev, "reading status failed\n"); - return rc; + return sr; } - if (rc & ISL1208_REG_SR_RTCF) + rc = isl1208_set_xtoscb(client, sr, xtosb_val); + if (rc) + return rc; + + if (sr & ISL1208_REG_SR_RTCF) dev_warn(&client->dev, "rtc power failure detected, " "please set clock.\n"); From patchwork Wed Aug 16 14:20:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355268 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B0ABC04A6A for ; Wed, 16 Aug 2023 14:21:29 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web11.161772.1692195686088194603 for ; Wed, 16 Aug 2023 07:21:28 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100257" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:27 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 1993F4210C30; Wed, 16 Aug 2023 23:21:25 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 28/31] rtc: isl1208: Add support for the built-in RTC on the PMIC RAA215300 Date: Wed, 16 Aug 2023 15:20:14 +0100 Message-Id: <20230816142017.147173-29-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:29 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12710 commit fdd63f65ac25d0851dade4c7ba94a7a882b8d9c2 upstream. The built-in RTC found on PMIC RAA215300 is the same as ISL1208. However, the external oscillator bit is inverted on PMIC version 0x11. The PMIC driver detects PMIC version and instantiates the RTC device based on i2c_device_id. Signed-off-by: Biju Das Link: https://lore.kernel.org/r/20230623140948.384762-11-biju.das.jz@bp.renesas.com Signed-off-by: Alexandre Belloni Signed-off-by: Biju Das --- drivers/rtc/rtc-isl1208.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c index 915f23668228..b8cb99810ce4 100644 --- a/drivers/rtc/rtc-isl1208.c +++ b/drivers/rtc/rtc-isl1208.c @@ -74,6 +74,7 @@ struct isl1208_config { unsigned int nvmem_length; unsigned has_tamper:1; unsigned has_timestamp:1; + unsigned has_inverted_osc_bit:1; }; static const struct isl1208_config config_isl1208 = { @@ -100,11 +101,19 @@ static const struct isl1208_config config_isl1219 = { .has_timestamp = true }; +static const struct isl1208_config config_raa215300_a0 = { + .nvmem_length = 2, + .has_tamper = false, + .has_timestamp = false, + .has_inverted_osc_bit = true +}; + static const struct i2c_device_id isl1208_id[] = { { "isl1208", .driver_data = (kernel_ulong_t)&config_isl1208 }, { "isl1209", .driver_data = (kernel_ulong_t)&config_isl1209 }, { "isl1218", .driver_data = (kernel_ulong_t)&config_isl1218 }, { "isl1219", .driver_data = (kernel_ulong_t)&config_isl1219 }, + { "raa215300_a0", .driver_data = (kernel_ulong_t)&config_raa215300_a0 }, { } }; MODULE_DEVICE_TABLE(i2c, isl1208_id); @@ -893,6 +902,9 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id) return sr; } + if (isl1208->config->has_inverted_osc_bit) + xtosb_val = !xtosb_val; + rc = isl1208_set_xtoscb(client, sr, xtosb_val); if (rc) return rc; From patchwork Wed Aug 16 14:20:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355274 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 69D20C001E0 for ; Wed, 16 Aug 2023 14:21:39 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web11.161772.1692195686088194603 for ; Wed, 16 Aug 2023 07:21:30 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100261" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:29 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 51C5D4210C24; Wed, 16 Aug 2023 23:21:28 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 29/31] arm64: defconfig: Enable PMIC RAA215300 and RTC ISL 1208 configs Date: Wed, 16 Aug 2023 15:20:15 +0100 Message-Id: <20230816142017.147173-30-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:39 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12711 commit 0bfe5475f6b9fc766aa1fabb0a90c88b882c2f70 next. Enable PMIC RAA215300 and ISL 1208 configs, as it is populated on Renesas RZ/{G2L,V2L} SMARC EVKs. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230703144108.413938-1-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven Signed-off-by: Biju Das --- arch/arm64/configs/defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 9ab49a79ce5d..3be0f3708a60 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -601,6 +601,7 @@ CONFIG_REGULATOR_PWM=y CONFIG_REGULATOR_QCOM_RPMH=y CONFIG_REGULATOR_QCOM_SMD_RPM=y CONFIG_REGULATOR_QCOM_SPMI=y +CONFIG_REGULATOR_RAA215300=y CONFIG_REGULATOR_RK808=y CONFIG_REGULATOR_S2MPS11=y CONFIG_REGULATOR_VCTRL=m @@ -827,6 +828,7 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=m CONFIG_RTC_DRV_MAX77686=y CONFIG_RTC_DRV_RK808=m +CONFIG_RTC_DRV_ISL1208=m CONFIG_RTC_DRV_PCF85363=m CONFIG_RTC_DRV_RX8581=m CONFIG_RTC_DRV_RV8803=m From patchwork Wed Aug 16 14:20:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355273 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 749BFC04E69 for ; Wed, 16 Aug 2023 14:21:39 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlie6.idc.renesas.com [210.160.252.172]) by mx.groups.io with SMTP id smtpd.web11.161778.1692195692763485068 for ; Wed, 16 Aug 2023 07:21:32 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.172, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="176787726" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:32 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 89A394210C2B; Wed, 16 Aug 2023 23:21:30 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 30/31] arm64: dts: renesas: rzg2l-smarc-som: Enable PMIC and built-in RTC Date: Wed, 16 Aug 2023 15:20:16 +0100 Message-Id: <20230816142017.147173-31-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:39 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12713 commit fdf19e44e0ef07b721c5cc1b413941ddbdc4bd78 next. Enable PMIC RAA215300 and the built-in RTC on the RZ/{G2L,V2L} SMARC EVK. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230623140948.384762-4-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven --- .../boot/dts/renesas/rzg2l-smarc-som.dtsi | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi index 879375c0395e..8d5e67c05c9f 100644 --- a/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi @@ -63,6 +63,13 @@ vccq_sdhi0: regulator-vccq-sdhi0 { gpios = <&pinctrl RZG2L_GPIO(39, 0) GPIO_ACTIVE_HIGH>; regulator-always-on; }; + + /* 32.768kHz crystal */ + x2: x2-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; }; &adc { @@ -130,6 +137,17 @@ &extal_clk { clock-frequency = <24000000>; }; +&i2c3 { + raa215300: pmic@12 { + compatible = "renesas,raa215300"; + reg = <0x12>, <0x6f>; + reg-names = "main", "rtc"; + + clocks = <&x2>; + clock-names = "xin"; + }; +}; + &ostm1 { status = "okay"; }; From patchwork Wed Aug 16 14:20:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 13355272 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 721B0C41513 for ; Wed, 16 Aug 2023 14:21:39 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlie5.idc.renesas.com [210.160.252.171]) by mx.groups.io with SMTP id smtpd.web11.161772.1692195686088194603 for ; Wed, 16 Aug 2023 07:21:34 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: bp.renesas.com, ip: 210.160.252.171, mailfrom: biju.das.jz@bp.renesas.com) X-IronPort-AV: E=Sophos;i="6.01,177,1684767600"; d="scan'208";a="173100264" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 16 Aug 2023 23:21:34 +0900 Received: from localhost.localdomain (unknown [10.226.92.162]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id C55AF4210C32; Wed, 16 Aug 2023 23:21:32 +0900 (JST) From: Biju Das To: cip-dev@lists.cip-project.org, Nobuhiro Iwamatsu , Pavel Machek Cc: Biju Das , Claudiu Beznea Subject: [PATCH 5.10.y-cip 31/31] arm64: dts: renesas: rzg2lc-smarc-som: Enable PMIC and built-in RTC Date: Wed, 16 Aug 2023 15:20:17 +0100 Message-Id: <20230816142017.147173-32-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> References: <20230816142017.147173-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 16 Aug 2023 14:21:39 -0000 X-Groupsio-URL: https://lists.cip-project.org/g/cip-dev/message/12714 commit bf8abcd7e7a804b825b11828d13c057e8678899a next. Enable PMIC RAA215300 and the built-in RTC on the RZ/G2LC SMARC EVK. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20230712151342.82690-1-biju.das.jz@bp.renesas.com Signed-off-by: Geert Uytterhoeven --- .../boot/dts/renesas/rzg2lc-smarc-som.dtsi | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi index 05b117ac414c..d853648825e7 100644 --- a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi @@ -52,6 +52,13 @@ vccq_sdhi0: regulator-vccq-sdhi0 { gpios = <&pinctrl RZG2L_GPIO(39, 0) GPIO_ACTIVE_HIGH>; regulator-always-on; }; + + /* 32.768kHz crystal */ + x2: x2-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; }; ð0 { @@ -84,6 +91,17 @@ &extal_clk { clock-frequency = <24000000>; }; +&i2c2 { + raa215300: pmic@12 { + compatible = "renesas,raa215300"; + reg = <0x12>, <0x6f>; + reg-names = "main", "rtc"; + + clocks = <&x2>; + clock-names = "xin"; + }; +}; + &ostm1 { status = "okay"; };