From patchwork Tue Mar 7 15:36:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sebastian Reichel X-Patchwork-Id: 13163973 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9068BC678D4 for ; Tue, 7 Mar 2023 15:36:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=CznN4CGWbm+VzJNWuba2mXDTBqDmSCkcU1xlZrLQAU8=; b=olLr2LfjDBvXYJ oRg/ed/af3fF5GyxpPRfJLwFNhiB8AxzBfv5BYVtYgZXOMeW06mv7n+tnX+KSvH6VT0JWxwyItTnL vvaRqmoSjuLh1wxdBFOcx0/0BTjG9OyI6pxF8zGpk70T8KNmD5i8ZwMK9TQbF4TXalk0z1JteB2Nv xvMSHA2789LwI60JHmb9ocW689xZW0KUZ8vXg5BEVUTys+IpRVEm6aZLzuLaIWEfj0cwp3YzP2gSw Fvu4e8Q8XiZQeCDVrLPX4kBLITskB5ZVuCdSWKgVj2cYqKvGPjnPCxjminptMqvCEZCycgs1sfoSs D/Wa6Gzepogy16wGEBgg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pZZMi-001GUD-4R; Tue, 07 Mar 2023 15:36:36 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pZZMZ-001GMz-UE for linux-rockchip@lists.infradead.org; Tue, 07 Mar 2023 15:36:33 +0000 Received: from jupiter.universe (dyndsl-091-248-189-073.ewe-ip-backbone.de [91.248.189.73]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: sre) by madras.collabora.co.uk (Postfix) with ESMTPSA id 9E0286602FE8; Tue, 7 Mar 2023 15:36:23 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1678203383; bh=Uralss2iRODFklFq+VlpAnBBM3s2BAk+zOFv0yWYOxE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UKnxmMUuISIy8Q6c7Ap0qupJ7RH+e/MHbEWHWasat/Y3IFeXRqpO0kQD9YvRFObBZ +6lbLnCaYZ6qn/bETuUePszClcttqjSR73MSpXOQdGIaKzWZEdcCJ64o1jtgkwKnNm RuNHFLjXE4fhnkK7eDf8F1155PbAx66fV7dQLAzZSBvxJRYmnpvuedsMfCvCIfn0CV QAd1ZTrb+T4Q0CybNd8tKSH5zLGO8GKVW4ltEjRy2uSsLN2qsDvF5hjsXB9hV77Nm1 84YRHw7WKJ3MwlqNVByvhptNqwjSHMCNPB+onPLZGRWnQMiIcNlqtXVsAyM7ZhD/Pn LYf+Q5+AioVkw== Received: by jupiter.universe (Postfix, from userid 1000) id 299AA48011D; Tue, 7 Mar 2023 16:36:19 +0100 (CET) From: Sebastian Reichel To: Heiko Stuebner , Rob Herring , Krzysztof Kozlowski , Lee Jones Cc: Michael Turquette , Stephen Boyd , Linus Walleij , Mark Brown , Liam Girdwood , Alexandre Belloni , Alessandro Zummo , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sebastian Reichel , kernel@collabora.com Subject: [PATCHv7 05/11] mfd: rk808: split into core and i2c Date: Tue, 7 Mar 2023 16:36:11 +0100 Message-Id: <20230307153617.643260-6-sebastian.reichel@collabora.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230307153617.643260-1-sebastian.reichel@collabora.com> References: <20230307153617.643260-1-sebastian.reichel@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230307_073628_295338_BC087563 X-CRM114-Status: GOOD ( 26.46 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org Split rk808 into a core and an i2c part in preperation for SPI support. Acked-for-MFD-by: Lee Jones Signed-off-by: Sebastian Reichel Acked-by: Alexandre Belloni # for RTC --- drivers/clk/Kconfig | 2 +- drivers/input/misc/Kconfig | 2 +- drivers/mfd/Kconfig | 7 +- drivers/mfd/Makefile | 3 +- drivers/mfd/{rk808.c => rk8xx-core.c} | 209 +++++--------------------- drivers/mfd/rk8xx-i2c.c | 200 ++++++++++++++++++++++++ drivers/pinctrl/Kconfig | 2 +- drivers/power/supply/Kconfig | 2 +- drivers/regulator/Kconfig | 2 +- drivers/rtc/Kconfig | 2 +- include/linux/mfd/rk808.h | 6 + sound/soc/codecs/Kconfig | 2 +- 12 files changed, 256 insertions(+), 183 deletions(-) rename drivers/mfd/{rk808.c => rk8xx-core.c} (76%) create mode 100644 drivers/mfd/rk8xx-i2c.c diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index b6c5bf69a2b2..b08fa3273c84 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -82,7 +82,7 @@ config COMMON_CLK_MAX9485 config COMMON_CLK_RK808 tristate "Clock driver for RK805/RK808/RK809/RK817/RK818" - depends on MFD_RK808 + depends on MFD_RK8XX help This driver supports RK805, RK809 and RK817, RK808 and RK818 crystal oscillator clock. These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each. diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 5c2d0c06d2a5..6a6978fc68fa 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -598,7 +598,7 @@ config INPUT_PWM_VIBRA config INPUT_RK805_PWRKEY tristate "Rockchip RK805 PMIC power key support" - depends on MFD_RK808 + depends on MFD_RK8XX help Select this option to enable power key driver for RK805. diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index fcc141e067b9..2998d04f8756 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1176,12 +1176,17 @@ config MFD_RC5T583 Additional drivers must be enabled in order to use the different functionality of the device. -config MFD_RK808 +config MFD_RK8XX + bool + select MFD_CORE + +config MFD_RK8XX_I2C tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power Management Chip" depends on I2C && OF select MFD_CORE select REGMAP_I2C select REGMAP_IRQ + select MFD_RK8XX help If you say yes here you get support for the RK805, RK808, RK809, RK817 and RK818 Power Management chips. diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 2f6c89d1e277..be9e4806d2e6 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -213,7 +213,8 @@ obj-$(CONFIG_MFD_PALMAS) += palmas.o obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o obj-$(CONFIG_MFD_NTXEC) += ntxec.o obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o -obj-$(CONFIG_MFD_RK808) += rk808.o +obj-$(CONFIG_MFD_RK8XX) += rk8xx-core.o +obj-$(CONFIG_MFD_RK8XX_I2C) += rk8xx-i2c.o obj-$(CONFIG_MFD_RN5T618) += rn5t618.o obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o obj-$(CONFIG_MFD_SYSCON) += syscon.o diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk8xx-core.c similarity index 76% rename from drivers/mfd/rk808.c rename to drivers/mfd/rk8xx-core.c index ce52307cbaea..5c0a5acef34c 100644 --- a/drivers/mfd/rk808.c +++ b/drivers/mfd/rk8xx-core.c @@ -1,18 +1,15 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * MFD core driver for Rockchip RK808/RK818 + * MFD core driver for Rockchip RK8XX * * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd + * Copyright (C) 2016 PHYTEC Messtechnik GmbH * * Author: Chris Zhong * Author: Zhang Qing - * - * Copyright (C) 2016 PHYTEC Messtechnik GmbH - * * Author: Wadim Egorov */ -#include #include #include #include @@ -27,92 +24,6 @@ struct rk808_reg_data { int value; }; -static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg) -{ - /* - * Notes: - * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but - * we don't use that feature. It's better to cache. - * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since - * bits are cleared in case when we shutoff anyway, but better safe. - */ - - switch (reg) { - case RK808_SECONDS_REG ... RK808_WEEKS_REG: - case RK808_RTC_STATUS_REG: - case RK808_VB_MON_REG: - case RK808_THERMAL_REG: - case RK808_DCDC_UV_STS_REG: - case RK808_LDO_UV_STS_REG: - case RK808_DCDC_PG_REG: - case RK808_LDO_PG_REG: - case RK808_DEVCTRL_REG: - case RK808_INT_STS_REG1: - case RK808_INT_STS_REG2: - return true; - } - - return false; -} - -static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg) -{ - /* - * Notes: - * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but - * we don't use that feature. It's better to cache. - */ - - switch (reg) { - case RK817_SECONDS_REG ... RK817_WEEKS_REG: - case RK817_RTC_STATUS_REG: - case RK817_CODEC_DTOP_LPT_SRST: - case RK817_GAS_GAUGE_ADC_CONFIG0 ... RK817_GAS_GAUGE_CUR_ADC_K0: - case RK817_PMIC_CHRG_STS: - case RK817_PMIC_CHRG_OUT: - case RK817_PMIC_CHRG_IN: - case RK817_INT_STS_REG0: - case RK817_INT_STS_REG1: - case RK817_INT_STS_REG2: - case RK817_SYS_STS: - return true; - } - - return false; -} - -static const struct regmap_config rk818_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - .max_register = RK818_USB_CTRL_REG, - .cache_type = REGCACHE_RBTREE, - .volatile_reg = rk808_is_volatile_reg, -}; - -static const struct regmap_config rk805_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - .max_register = RK805_OFF_SOURCE_REG, - .cache_type = REGCACHE_RBTREE, - .volatile_reg = rk808_is_volatile_reg, -}; - -static const struct regmap_config rk808_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - .max_register = RK808_IO_POL_REG, - .cache_type = REGCACHE_RBTREE, - .volatile_reg = rk808_is_volatile_reg, -}; - -static const struct regmap_config rk817_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - .max_register = RK817_GPIO_INT_CFG, - .cache_type = REGCACHE_NONE, - .volatile_reg = rk817_is_volatile_reg, -}; - static const struct resource rtc_resources[] = { DEFINE_RES_IRQ(RK808_IRQ_RTC_ALARM), }; @@ -605,9 +516,9 @@ static int rk808_restart(struct sys_off_data *data) return NOTIFY_DONE; } -static void rk8xx_shutdown(struct i2c_client *client) +void rk8xx_shutdown(struct device *dev) { - struct rk808 *rk808 = i2c_get_clientdata(client); + struct rk808 *rk808 = dev_get_drvdata(dev); int ret; switch (rk808->variant) { @@ -628,61 +539,31 @@ static void rk8xx_shutdown(struct i2c_client *client) return; } if (ret) - dev_warn(&client->dev, + dev_warn(dev, "Cannot switch to power down function\n"); } +EXPORT_SYMBOL_GPL(rk8xx_shutdown); -static const struct of_device_id rk808_of_match[] = { - { .compatible = "rockchip,rk805" }, - { .compatible = "rockchip,rk808" }, - { .compatible = "rockchip,rk809" }, - { .compatible = "rockchip,rk817" }, - { .compatible = "rockchip,rk818" }, - { }, -}; -MODULE_DEVICE_TABLE(of, rk808_of_match); - -static int rk808_probe(struct i2c_client *client) +int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap) { - struct device_node *np = client->dev.of_node; struct rk808 *rk808; const struct rk808_reg_data *pre_init_reg; const struct mfd_cell *cells; int nr_pre_init_regs; int nr_cells; - int msb, lsb; - unsigned char pmic_id_msb, pmic_id_lsb; int ret; int i; - rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL); + rk808 = devm_kzalloc(dev, sizeof(*rk808), GFP_KERNEL); if (!rk808) return -ENOMEM; - - if (of_device_is_compatible(np, "rockchip,rk817") || - of_device_is_compatible(np, "rockchip,rk809")) { - pmic_id_msb = RK817_ID_MSB; - pmic_id_lsb = RK817_ID_LSB; - } else { - pmic_id_msb = RK808_ID_MSB; - pmic_id_lsb = RK808_ID_LSB; - } - - /* Read chip variant */ - msb = i2c_smbus_read_byte_data(client, pmic_id_msb); - if (msb < 0) - return dev_err_probe(&client->dev, msb, "failed to read the chip id MSB\n"); - - lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb); - if (lsb < 0) - return dev_err_probe(&client->dev, lsb, "failed to read the chip id LSB\n"); - - rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK; - dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant); + rk808->dev = dev; + rk808->variant = variant; + rk808->regmap = regmap; + dev_set_drvdata(dev, rk808); switch (rk808->variant) { case RK805_ID: - rk808->regmap_cfg = &rk805_regmap_config; rk808->regmap_irq_chip = &rk805_irq_chip; pre_init_reg = rk805_pre_init_reg; nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg); @@ -690,7 +571,6 @@ static int rk808_probe(struct i2c_client *client) nr_cells = ARRAY_SIZE(rk805s); break; case RK808_ID: - rk808->regmap_cfg = &rk808_regmap_config; rk808->regmap_irq_chip = &rk808_irq_chip; pre_init_reg = rk808_pre_init_reg; nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg); @@ -698,7 +578,6 @@ static int rk808_probe(struct i2c_client *client) nr_cells = ARRAY_SIZE(rk808s); break; case RK818_ID: - rk808->regmap_cfg = &rk818_regmap_config; rk808->regmap_irq_chip = &rk818_irq_chip; pre_init_reg = rk818_pre_init_reg; nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg); @@ -707,7 +586,6 @@ static int rk808_probe(struct i2c_client *client) break; case RK809_ID: case RK817_ID: - rk808->regmap_cfg = &rk817_regmap_config; rk808->regmap_irq_chip = &rk817_irq_chip; pre_init_reg = rk817_pre_init_reg; nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg); @@ -715,27 +593,20 @@ static int rk808_probe(struct i2c_client *client) nr_cells = ARRAY_SIZE(rk817s); break; default: - dev_err(&client->dev, "Unsupported RK8XX ID %lu\n", - rk808->variant); + dev_err(dev, "Unsupported RK8XX ID %lu\n", rk808->variant); return -EINVAL; } - rk808->dev = &client->dev; - i2c_set_clientdata(client, rk808); - - rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg); - if (IS_ERR(rk808->regmap)) - return dev_err_probe(&client->dev, PTR_ERR(rk808->regmap), - "regmap initialization failed\n"); + dev_info(dev, "chip id: 0x%x\n", (unsigned int)rk808->variant); - if (!client->irq) - return dev_err_probe(&client->dev, -EINVAL, "No interrupt support, no core IRQ\n"); + if (!irq) + return dev_err_probe(dev, -EINVAL, "No interrupt support, no core IRQ\n"); - ret = devm_regmap_add_irq_chip(&client->dev, rk808->regmap, client->irq, + ret = devm_regmap_add_irq_chip(dev, rk808->regmap, irq, IRQF_ONESHOT, -1, rk808->regmap_irq_chip, &rk808->irq_data); if (ret) - return dev_err_probe(&client->dev, ret, "Failed to add irq_chip\n"); + return dev_err_probe(dev, ret, "Failed to add irq_chip\n"); for (i = 0; i < nr_pre_init_regs; i++) { ret = regmap_update_bits(rk808->regmap, @@ -743,45 +614,46 @@ static int rk808_probe(struct i2c_client *client) pre_init_reg[i].mask, pre_init_reg[i].value); if (ret) - return dev_err_probe(&client->dev, ret, "0x%x write err\n", + return dev_err_probe(dev, ret, "0x%x write err\n", pre_init_reg[i].addr); } - ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE, + ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE, cells, nr_cells, NULL, 0, regmap_irq_get_domain(rk808->irq_data)); if (ret) - return dev_err_probe(&client->dev, ret, "failed to add MFD devices\n"); + return dev_err_probe(dev, ret, "failed to add MFD devices\n"); - if (of_property_read_bool(np, "rockchip,system-power-controller")) { - ret = devm_register_sys_off_handler(&client->dev, + if (device_property_read_bool(dev, "rockchip,system-power-controller")) { + ret = devm_register_sys_off_handler(dev, SYS_OFF_MODE_POWER_OFF_PREPARE, SYS_OFF_PRIO_HIGH, &rk808_power_off, rk808); if (ret) - return dev_err_probe(&client->dev, ret, + return dev_err_probe(dev, ret, "failed to register poweroff handler\n"); switch (rk808->variant) { case RK809_ID: case RK817_ID: - ret = devm_register_sys_off_handler(&client->dev, + ret = devm_register_sys_off_handler(dev, SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH, &rk808_restart, rk808); if (ret) - dev_warn(&client->dev, "failed to register rst handler, %d\n", ret); + dev_warn(dev, "failed to register rst handler, %d\n", ret); break; default: - dev_dbg(&client->dev, "pmic controlled board reset not supported\n"); + dev_dbg(dev, "pmic controlled board reset not supported\n"); break; } } return 0; } +EXPORT_SYMBOL_GPL(rk8xx_probe); -static int __maybe_unused rk8xx_suspend(struct device *dev) +int rk8xx_suspend(struct device *dev) { - struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev)); + struct rk808 *rk808 = dev_get_drvdata(dev); int ret = 0; switch (rk808->variant) { @@ -804,10 +676,11 @@ static int __maybe_unused rk8xx_suspend(struct device *dev) return ret; } +EXPORT_SYMBOL_GPL(rk8xx_suspend); -static int __maybe_unused rk8xx_resume(struct device *dev) +int rk8xx_resume(struct device *dev) { - struct rk808 *rk808 = i2c_get_clientdata(to_i2c_client(dev)); + struct rk808 *rk808 = dev_get_drvdata(dev); int ret = 0; switch (rk808->variant) { @@ -824,22 +697,10 @@ static int __maybe_unused rk8xx_resume(struct device *dev) return ret; } -static SIMPLE_DEV_PM_OPS(rk8xx_pm_ops, rk8xx_suspend, rk8xx_resume); - -static struct i2c_driver rk808_i2c_driver = { - .driver = { - .name = "rk808", - .of_match_table = rk808_of_match, - .pm = &rk8xx_pm_ops, - }, - .probe_new = rk808_probe, - .shutdown = rk8xx_shutdown, -}; - -module_i2c_driver(rk808_i2c_driver); +EXPORT_SYMBOL_GPL(rk8xx_resume); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Chris Zhong "); MODULE_AUTHOR("Zhang Qing "); MODULE_AUTHOR("Wadim Egorov "); -MODULE_DESCRIPTION("RK808/RK818 PMIC driver"); +MODULE_DESCRIPTION("RK8xx PMIC core"); diff --git a/drivers/mfd/rk8xx-i2c.c b/drivers/mfd/rk8xx-i2c.c new file mode 100644 index 000000000000..6d121b589fec --- /dev/null +++ b/drivers/mfd/rk8xx-i2c.c @@ -0,0 +1,200 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Rockchip RK808/RK818 Core (I2C) driver + * + * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd + * Copyright (C) 2016 PHYTEC Messtechnik GmbH + * + * Author: Chris Zhong + * Author: Zhang Qing + * Author: Wadim Egorov + */ + +#include +#include +#include +#include +#include + +static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg) +{ + /* + * Notes: + * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but + * we don't use that feature. It's better to cache. + * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since + * bits are cleared in case when we shutoff anyway, but better safe. + */ + + switch (reg) { + case RK808_SECONDS_REG ... RK808_WEEKS_REG: + case RK808_RTC_STATUS_REG: + case RK808_VB_MON_REG: + case RK808_THERMAL_REG: + case RK808_DCDC_UV_STS_REG: + case RK808_LDO_UV_STS_REG: + case RK808_DCDC_PG_REG: + case RK808_LDO_PG_REG: + case RK808_DEVCTRL_REG: + case RK808_INT_STS_REG1: + case RK808_INT_STS_REG2: + return true; + } + + return false; +} + +static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg) +{ + /* + * Notes: + * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but + * we don't use that feature. It's better to cache. + */ + + switch (reg) { + case RK817_SECONDS_REG ... RK817_WEEKS_REG: + case RK817_RTC_STATUS_REG: + case RK817_CODEC_DTOP_LPT_SRST: + case RK817_GAS_GAUGE_ADC_CONFIG0 ... RK817_GAS_GAUGE_CUR_ADC_K0: + case RK817_PMIC_CHRG_STS: + case RK817_PMIC_CHRG_OUT: + case RK817_PMIC_CHRG_IN: + case RK817_INT_STS_REG0: + case RK817_INT_STS_REG1: + case RK817_INT_STS_REG2: + case RK817_SYS_STS: + return true; + } + + return false; +} + + +static const struct regmap_config rk818_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RK818_USB_CTRL_REG, + .cache_type = REGCACHE_RBTREE, + .volatile_reg = rk808_is_volatile_reg, +}; + +static const struct regmap_config rk805_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RK805_OFF_SOURCE_REG, + .cache_type = REGCACHE_RBTREE, + .volatile_reg = rk808_is_volatile_reg, +}; + +static const struct regmap_config rk808_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RK808_IO_POL_REG, + .cache_type = REGCACHE_RBTREE, + .volatile_reg = rk808_is_volatile_reg, +}; + +static const struct regmap_config rk817_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RK817_GPIO_INT_CFG, + .cache_type = REGCACHE_NONE, + .volatile_reg = rk817_is_volatile_reg, +}; + +static int rk8xx_i2c_get_variant(struct i2c_client *client) +{ + u8 pmic_id_msb, pmic_id_lsb; + int msb, lsb; + + if (of_device_is_compatible(client->dev.of_node, "rockchip,rk817") || + of_device_is_compatible(client->dev.of_node, "rockchip,rk809")) { + pmic_id_msb = RK817_ID_MSB; + pmic_id_lsb = RK817_ID_LSB; + } else { + pmic_id_msb = RK808_ID_MSB; + pmic_id_lsb = RK808_ID_LSB; + } + + /* Read chip variant */ + msb = i2c_smbus_read_byte_data(client, pmic_id_msb); + if (msb < 0) + return dev_err_probe(&client->dev, msb, "failed to read the chip id MSB\n"); + + lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb); + if (lsb < 0) + return dev_err_probe(&client->dev, lsb, "failed to read the chip id LSB\n"); + + return ((msb << 8) | lsb) & RK8XX_ID_MSK; +} + +static int rk8xx_i2c_probe(struct i2c_client *client) +{ + const struct regmap_config *regmap_cfg; + struct regmap *regmap; + int variant; + + variant = rk8xx_i2c_get_variant(client); + if (variant < 0) + return variant; + + switch (variant) { + case RK805_ID: + regmap_cfg = &rk805_regmap_config; + break; + case RK808_ID: + regmap_cfg = &rk808_regmap_config; + break; + case RK818_ID: + regmap_cfg = &rk818_regmap_config; + break; + case RK809_ID: + case RK817_ID: + regmap_cfg = &rk817_regmap_config; + break; + default: + return dev_err_probe(&client->dev, -EINVAL, "Unsupported RK8XX ID %x\n", variant); + } + + regmap = devm_regmap_init_i2c(client, regmap_cfg); + if (IS_ERR(regmap)) + return dev_err_probe(&client->dev, PTR_ERR(regmap), + "regmap initialization failed\n"); + + return rk8xx_probe(&client->dev, variant, client->irq, regmap); +} + +static void rk8xx_i2c_shutdown(struct i2c_client *client) +{ + rk8xx_shutdown(&client->dev); +} + +static SIMPLE_DEV_PM_OPS(rk8xx_i2c_pm_ops, rk8xx_suspend, rk8xx_resume); + +static const struct of_device_id rk8xx_i2c_of_match[] = { + { .compatible = "rockchip,rk805" }, + { .compatible = "rockchip,rk808" }, + { .compatible = "rockchip,rk809" }, + { .compatible = "rockchip,rk817" }, + { .compatible = "rockchip,rk818" }, + { }, +}; +MODULE_DEVICE_TABLE(of, rk8xx_i2c_of_match); + +static struct i2c_driver rk8xx_i2c_driver = { + .driver = { + .name = "rk8xx-i2c", + .of_match_table = rk8xx_i2c_of_match, + .pm = &rk8xx_i2c_pm_ops, + }, + .probe_new = rk8xx_i2c_probe, + .shutdown = rk8xx_i2c_shutdown, +}; +module_i2c_driver(rk8xx_i2c_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Chris Zhong "); +MODULE_AUTHOR("Zhang Qing "); +MODULE_AUTHOR("Wadim Egorov "); +MODULE_DESCRIPTION("RK8xx I2C PMIC driver"); diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index dcb53c4a9584..38e6c5401554 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -407,7 +407,7 @@ config PINCTRL_PISTACHIO config PINCTRL_RK805 tristate "Pinctrl and GPIO driver for RK805 PMIC" - depends on MFD_RK808 + depends on MFD_RK8XX select GPIOLIB select PINMUX select GENERIC_PINCONF diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index c78be9f322e6..4a5e8e1d1237 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -706,7 +706,7 @@ config CHARGER_BQ256XX config CHARGER_RK817 tristate "Rockchip RK817 PMIC Battery Charger" - depends on MFD_RK808 + depends on MFD_RK8XX help Say Y to include support for Rockchip RK817 Battery Charger. diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index aae28d0a489c..7f479753de5c 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -1056,7 +1056,7 @@ config REGULATOR_RC5T583 config REGULATOR_RK808 tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power regulators" - depends on MFD_RK808 + depends on MFD_RK8XX help Select this option to enable the power regulator of ROCKCHIP PMIC RK805,RK809&RK817,RK808 and RK818. diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 5a71579af0a1..86c5cee2cb33 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -395,7 +395,7 @@ config RTC_DRV_NCT3018Y config RTC_DRV_RK808 tristate "Rockchip RK805/RK808/RK809/RK817/RK818 RTC" - depends on MFD_RK808 + depends on MFD_RK8XX help If you say yes here you will get support for the RTC of RK805, RK809 and RK817, RK808 and RK818 PMIC. diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h index a89ddd9ba68e..4183427a80fe 100644 --- a/include/linux/mfd/rk808.h +++ b/include/linux/mfd/rk808.h @@ -794,4 +794,10 @@ struct rk808 { const struct regmap_config *regmap_cfg; const struct regmap_irq_chip *regmap_irq_chip; }; + +void rk8xx_shutdown(struct device *dev); +int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap *regmap); +int rk8xx_suspend(struct device *dev); +int rk8xx_resume(struct device *dev); + #endif /* __LINUX_REGULATOR_RK808_H */ diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 07747565c3b5..8b7cc25a6618 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -1257,7 +1257,7 @@ config SND_SOC_RK3328 config SND_SOC_RK817 tristate "Rockchip RK817 audio CODEC" - depends on MFD_RK808 || COMPILE_TEST + depends on MFD_RK8XX || COMPILE_TEST config SND_SOC_RL6231 tristate