From patchwork Fri Aug 25 08:13:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Qiu X-Patchwork-Id: 13365141 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 6F406C7EE2C for ; Fri, 25 Aug 2023 08:14:30 +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=cNNCFo0j6Mf/1ZnSWFWtSqLY8vAgqojTQOFhbLo3iCg=; b=3wwOp3wTzpxMCJ 5OAxSew0TEGPDxHy7/hys+/ktZ3uY77r32xJ8JCrWfgKSwUa9+QGZ/608+pH/BF9dT1oPwC/BoW+G ++0FyxON/ZyHcRshTu3J4M93z7ksDizTU9sEz/+53tqR/R5kzLT0RPlcAAJn6gZaHBHqrosryERqH eCSo9WJA/2XzaLBY2DHVr4elUGCIpzzLj23HE0INA28HG+z1O+cMjf1VayZSALHxK7DpmIxC0NtAQ F538k/cCjRw1ARZtTE8foQmX/BI83ZBnSwEp25ocvvxqbRdHF2kDCb/IxlVQs06WBk5evFBEaklrz D4u70aJ1jCd0Kp7fIiCA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxa-004btN-0z; Fri, 25 Aug 2023 08:14:26 +0000 Received: from fd01.gateway.ufhost.com ([61.152.239.71]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxV-004blW-0K for linux-riscv@lists.infradead.org; Fri, 25 Aug 2023 08:14:22 +0000 Received: from EXMBX165.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX165", Issuer "EXMBX165" (not verified)) by fd01.gateway.ufhost.com (Postfix) with ESMTP id CCAFB81F6; Fri, 25 Aug 2023 16:13:30 +0800 (CST) Received: from EXMBX168.cuchost.com (172.16.6.78) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:30 +0800 Received: from williamqiu-virtual-machine.starfivetech.com (171.223.208.138) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:29 +0800 From: William Qiu To: , , , CC: Emil Renner Berthing , Rob Herring , Philipp Zabel , Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Krzysztof Kozlowski , Conor Dooley , "Paul Walmsley" , Palmer Dabbelt , Albert Ou , Hal Feng , William Qiu Subject: [RFC v4 1/4] dt-bindings: pwm: Add StarFive PWM module Date: Fri, 25 Aug 2023 16:13:25 +0800 Message-ID: <20230825081328.204442-2-william.qiu@starfivetech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230825081328.204442-1-william.qiu@starfivetech.com> References: <20230825081328.204442-1-william.qiu@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [171.223.208.138] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX168.cuchost.com (172.16.6.78) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230825_011421_380378_D863F77B X-CRM114-Status: GOOD ( 11.45 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add documentation to describe StarFive Pulse Width Modulation controller driver. Signed-off-by: William Qiu Reviewed-by: Krzysztof Kozlowski Reviewed-by: Hal Feng --- .../bindings/pwm/starfive,jh7100-pwm.yaml | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/starfive,jh7100-pwm.yaml -- 2.34.1 diff --git a/Documentation/devicetree/bindings/pwm/starfive,jh7100-pwm.yaml b/Documentation/devicetree/bindings/pwm/starfive,jh7100-pwm.yaml new file mode 100644 index 000000000000..6f1937beb962 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/starfive,jh7100-pwm.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/starfive,jh7100-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: StarFive JH7100 and JH7110 PWM controller + +maintainers: + - William Qiu + +description: + StarFive SoCs contain PWM and when operating in PWM mode, the PTC core generates + binary signal with user-programmable low and high periods. Clock source for the + PWM can be either system clock or external clock. Each PWM timer block provides 8 + PWM channels. + +allOf: + - $ref: pwm.yaml# + +properties: + compatible: + enum: + - starfive,jh7100-pwm + - starfive,jh7110-pwm + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + + "#pwm-cells": + const: 3 + +required: + - compatible + - reg + - clocks + - resets + +additionalProperties: false + +examples: + - | + pwm@12490000 { + compatible = "starfive,jh7100-pwm"; + reg = <0x12490000 0x10000>; + clocks = <&clkgen 181>; + resets = <&rstgen 109>; + #pwm-cells = <3>; + }; From patchwork Fri Aug 25 08:13:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Qiu X-Patchwork-Id: 13365137 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 ED227C3DA6F for ; Fri, 25 Aug 2023 08:14:21 +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=fRi9wRRzzyaTxmCmMc4zNzgDA7uDwQXwf5080uSK4bw=; b=dswdF3uQwSEU74 kZ5FpFQiNwEzIY9J5FMl61wz7vPr+AuS6YyNgVLIsvHTn68yadOzVW2htXm3GeFQ5/f44nZ2L9u6Z B/W2akVOU9JuYo5ANmwycndmyih+L4TjT9IADixzbWJ1jnXdFbhcc0VXOG1fpcpizBzjQOFUOeQxw m69DPbhW4WNdMk2t4skGUkTMGexwXUICJKyy7D8PE/1K/nQQzx5qNwvpq2OxAZ2ArAb3VcR86krhq CW0j6Wnw8hvR4Mh7EVHlon2kUY1HgNkhrPQwewaSOfrW7xC8VuN1ArMlqvC9j470X9Hb2FKpEfjWj rVn980PI+6SSXEaxjVcg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxK-004boY-0C; Fri, 25 Aug 2023 08:14:10 +0000 Received: from ex01.ufhost.com ([61.152.239.75]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxF-004blT-1I for linux-riscv@lists.infradead.org; Fri, 25 Aug 2023 08:14:08 +0000 Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id A641E24DBC0; Fri, 25 Aug 2023 16:13:31 +0800 (CST) Received: from EXMBX168.cuchost.com (172.16.6.78) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:31 +0800 Received: from williamqiu-virtual-machine.starfivetech.com (171.223.208.138) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:30 +0800 From: William Qiu To: , , , CC: Emil Renner Berthing , Rob Herring , Philipp Zabel , Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Krzysztof Kozlowski , Conor Dooley , "Paul Walmsley" , Palmer Dabbelt , Albert Ou , Hal Feng , William Qiu Subject: [RFC v4 2/4] pwm: starfive: Add PWM driver support Date: Fri, 25 Aug 2023 16:13:26 +0800 Message-ID: <20230825081328.204442-3-william.qiu@starfivetech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230825081328.204442-1-william.qiu@starfivetech.com> References: <20230825081328.204442-1-william.qiu@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [171.223.208.138] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX168.cuchost.com (172.16.6.78) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230825_011405_769855_A5CA4306 X-CRM114-Status: GOOD ( 22.91 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add Pulse Width Modulation driver support for StarFive JH7100 and JH7110 SoC. Co-developed-by: Hal Feng Signed-off-by: Hal Feng Signed-off-by: William Qiu --- MAINTAINERS | 7 ++ drivers/pwm/Kconfig | 9 ++ drivers/pwm/Makefile | 1 + drivers/pwm/pwm-starfive-ptc.c | 192 +++++++++++++++++++++++++++++++++ 4 files changed, 209 insertions(+) create mode 100644 drivers/pwm/pwm-starfive-ptc.c -- 2.34.1 diff --git a/MAINTAINERS b/MAINTAINERS index d590ce31aa72..0e47818c6f64 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20299,6 +20299,13 @@ F: drivers/pinctrl/starfive/pinctrl-starfive-jh71* F: include/dt-bindings/pinctrl/pinctrl-starfive-jh7100.h F: include/dt-bindings/pinctrl/starfive,jh7110-pinctrl.h +STARFIVE JH71X0 PWM DRIVERS +M: William Qiu +M: Hal Feng +S: Supported +F: Documentation/devicetree/bindings/pwm/starfive,jh7100-pwm.yaml +F: drivers/pwm/pwm-starfive-ptc.c + STARFIVE JH71X0 RESET CONTROLLER DRIVERS M: Emil Renner Berthing M: Hal Feng diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig index 6210babb0741..48800f33b5c1 100644 --- a/drivers/pwm/Kconfig +++ b/drivers/pwm/Kconfig @@ -569,6 +569,15 @@ config PWM_SPRD To compile this driver as a module, choose M here: the module will be called pwm-sprd. +config PWM_STARFIVE_PTC + tristate "StarFive PWM PTC support" + depends on ARCH_STARFIVE || COMPILE_TEST + help + Generic PWM framework driver for StarFive SoCs. + + To compile this driver as a module, choose M here: the module + will be called pwm-starfive-ptc. + config PWM_STI tristate "STiH4xx PWM support" depends on ARCH_STI || COMPILE_TEST diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile index c822389c2a24..d2b2a3aeea22 100644 --- a/drivers/pwm/Makefile +++ b/drivers/pwm/Makefile @@ -52,6 +52,7 @@ obj-$(CONFIG_PWM_SIFIVE) += pwm-sifive.o obj-$(CONFIG_PWM_SL28CPLD) += pwm-sl28cpld.o obj-$(CONFIG_PWM_SPEAR) += pwm-spear.o obj-$(CONFIG_PWM_SPRD) += pwm-sprd.o +obj-$(CONFIG_PWM_STARFIVE_PTC) += pwm-starfive-ptc.o obj-$(CONFIG_PWM_STI) += pwm-sti.o obj-$(CONFIG_PWM_STM32) += pwm-stm32.o obj-$(CONFIG_PWM_STM32_LP) += pwm-stm32-lp.o diff --git a/drivers/pwm/pwm-starfive-ptc.c b/drivers/pwm/pwm-starfive-ptc.c new file mode 100644 index 000000000000..57b5736f6732 --- /dev/null +++ b/drivers/pwm/pwm-starfive-ptc.c @@ -0,0 +1,192 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PWM driver for the StarFive JH71x0 SoC + * + * Copyright (C) 2018-2023 StarFive Technology Co., Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include + +/* Access PTC register (CNTR, HRC, LRC and CTRL) */ +#define REG_PTC_BASE_ADDR_SUB(base, N) \ +((base) + (((N) > 3) ? (((N) % 4) * 0x10 + (1 << 15)) : ((N) * 0x10))) +#define REG_PTC_RPTC_CNTR(base, N) (REG_PTC_BASE_ADDR_SUB(base, N)) +#define REG_PTC_RPTC_HRC(base, N) (REG_PTC_BASE_ADDR_SUB(base, N) + 0x4) +#define REG_PTC_RPTC_LRC(base, N) (REG_PTC_BASE_ADDR_SUB(base, N) + 0x8) +#define REG_PTC_RPTC_CTRL(base, N) (REG_PTC_BASE_ADDR_SUB(base, N) + 0xC) + +/* PTC_RPTC_CTRL register bits*/ +#define PTC_EN BIT(0) +#define PTC_ECLK BIT(1) +#define PTC_NEC BIT(2) +#define PTC_OE BIT(3) +#define PTC_SIGNLE BIT(4) +#define PTC_INTE BIT(5) +#define PTC_INT BIT(6) +#define PTC_CNTRRST BIT(7) +#define PTC_CAPTE BIT(8) + +struct starfive_pwm_ptc_device { + struct pwm_chip chip; + struct clk *clk; + struct reset_control *rst; + void __iomem *regs; + u32 clk_rate; /* PWM APB clock frequency */ +}; + +static inline +struct starfive_pwm_ptc_device *chip_to_starfive_ptc(struct pwm_chip *c) +{ + return container_of(c, struct starfive_pwm_ptc_device, chip); +} + +static int starfive_pwm_ptc_get_state(struct pwm_chip *chip, + struct pwm_device *dev, + struct pwm_state *state) +{ + struct starfive_pwm_ptc_device *pwm = chip_to_starfive_ptc(chip); + u32 period_data, duty_data, ctrl_data; + + period_data = readl(REG_PTC_RPTC_LRC(pwm->regs, dev->hwpwm)); + duty_data = readl(REG_PTC_RPTC_HRC(pwm->regs, dev->hwpwm)); + ctrl_data = readl(REG_PTC_RPTC_CTRL(pwm->regs, dev->hwpwm)); + + state->period = DIV_ROUND_CLOSEST_ULL((u64)period_data * NSEC_PER_SEC, pwm->clk_rate); + state->duty_cycle = DIV_ROUND_CLOSEST_ULL((u64)duty_data * NSEC_PER_SEC, pwm->clk_rate); + state->polarity = PWM_POLARITY_INVERSED; + state->enabled = (ctrl_data & PTC_EN) ? true : false; + + return 0; +} + +static int starfive_pwm_ptc_apply(struct pwm_chip *chip, + struct pwm_device *dev, + const struct pwm_state *state) +{ + struct starfive_pwm_ptc_device *pwm = chip_to_starfive_ptc(chip); + u32 period_data, duty_data, ctrl_data = 0; + + if (state->polarity != PWM_POLARITY_INVERSED) + return -EINVAL; + + period_data = DIV_ROUND_CLOSEST_ULL(state->period * pwm->clk_rate, + NSEC_PER_SEC); + duty_data = DIV_ROUND_CLOSEST_ULL(state->duty_cycle * pwm->clk_rate, + NSEC_PER_SEC); + + writel(period_data, REG_PTC_RPTC_LRC(pwm->regs, dev->hwpwm)); + writel(duty_data, REG_PTC_RPTC_HRC(pwm->regs, dev->hwpwm)); + writel(0, REG_PTC_RPTC_CNTR(pwm->regs, dev->hwpwm)); + + ctrl_data = readl(REG_PTC_RPTC_CTRL(pwm->regs, dev->hwpwm)); + if (state->enabled) + writel(ctrl_data | PTC_EN | PTC_OE, REG_PTC_RPTC_CTRL(pwm->regs, dev->hwpwm)); + else + writel(ctrl_data & ~(PTC_EN | PTC_OE), REG_PTC_RPTC_CTRL(pwm->regs, dev->hwpwm)); + + return 0; +} + +static const struct pwm_ops starfive_pwm_ptc_ops = { + .get_state = starfive_pwm_ptc_get_state, + .apply = starfive_pwm_ptc_apply, + .owner = THIS_MODULE, +}; + +static int starfive_pwm_ptc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct starfive_pwm_ptc_device *pwm; + struct pwm_chip *chip; + int ret; + + pwm = devm_kzalloc(dev, sizeof(*pwm), GFP_KERNEL); + if (!pwm) + return -ENOMEM; + + chip = &pwm->chip; + chip->dev = dev; + chip->ops = &starfive_pwm_ptc_ops; + chip->npwm = 8; + chip->of_pwm_n_cells = 3; + + pwm->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(pwm->regs)) + return dev_err_probe(dev, PTR_ERR(pwm->regs), + "Unable to map IO resources\n"); + + pwm->clk = devm_clk_get(dev, NULL); + if (IS_ERR(pwm->clk)) + return dev_err_probe(dev, PTR_ERR(pwm->clk), + "Unable to get pwm's clock\n"); + + pwm->rst = devm_reset_control_get_exclusive(dev, NULL); + if (IS_ERR(pwm->rst)) + return dev_err_probe(dev, PTR_ERR(pwm->rst), + "Unable to get pwm's reset\n"); + + ret = clk_prepare_enable(pwm->clk); + if (ret) { + dev_err(dev, + "Failed to enable clock for pwm: %d\n", ret); + return ret; + } + + reset_control_deassert(pwm->rst); + + pwm->clk_rate = clk_get_rate(pwm->clk); + if (pwm->clk_rate <= 0) { + dev_warn(dev, "Failed to get APB clock rate\n"); + return -EINVAL; + } + + ret = devm_pwmchip_add(dev, chip); + if (ret < 0) { + dev_err(dev, "Cannot register PTC: %d\n", ret); + clk_disable_unprepare(pwm->clk); + reset_control_assert(pwm->rst); + return ret; + } + + platform_set_drvdata(pdev, pwm); + + return 0; +} + +static int starfive_pwm_ptc_remove(struct platform_device *dev) +{ + struct starfive_pwm_ptc_device *pwm = platform_get_drvdata(dev); + + reset_control_assert(pwm->rst); + clk_disable_unprepare(pwm->clk); + + return 0; +} + +static const struct of_device_id starfive_pwm_ptc_of_match[] = { + { .compatible = "starfive,jh7100-pwm" }, + { .compatible = "starfive,jh7110-pwm" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, starfive_pwm_ptc_of_match); + +static struct platform_driver starfive_pwm_ptc_driver = { + .probe = starfive_pwm_ptc_probe, + .remove = starfive_pwm_ptc_remove, + .driver = { + .name = "pwm-starfive-ptc", + .of_match_table = starfive_pwm_ptc_of_match, + }, +}; +module_platform_driver(starfive_pwm_ptc_driver); + +MODULE_AUTHOR("Jieqin Chen"); +MODULE_AUTHOR("Hal Feng "); +MODULE_DESCRIPTION("StarFive PWM PTC driver"); +MODULE_LICENSE("GPL"); From patchwork Fri Aug 25 08:13:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Qiu X-Patchwork-Id: 13365140 X-Patchwork-Delegate: mail@conchuod.ie 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 4CE51C3DA6F for ; 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Fri, 25 Aug 2023 08:14:27 +0000 Received: from ex01.ufhost.com ([61.152.239.75]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxW-004blX-0k for linux-riscv@lists.infradead.org; Fri, 25 Aug 2023 08:14:24 +0000 Received: from EXMBX165.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX165", Issuer "EXMBX165" (not verified)) by ex01.ufhost.com (Postfix) with ESMTP id 7F4C424E284; Fri, 25 Aug 2023 16:13:32 +0800 (CST) Received: from EXMBX168.cuchost.com (172.16.6.78) by EXMBX165.cuchost.com (172.16.6.75) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:32 +0800 Received: from williamqiu-virtual-machine.starfivetech.com (171.223.208.138) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:31 +0800 From: William Qiu To: , , , CC: Emil Renner Berthing , Rob Herring , Philipp Zabel , Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Krzysztof Kozlowski , Conor Dooley , "Paul Walmsley" , Palmer Dabbelt , Albert Ou , Hal Feng , William Qiu Subject: [RFC v4 3/4] riscv: dts: starfive: jh7110: Add PWM node and pins configuration Date: Fri, 25 Aug 2023 16:13:27 +0800 Message-ID: <20230825081328.204442-4-william.qiu@starfivetech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230825081328.204442-1-william.qiu@starfivetech.com> References: <20230825081328.204442-1-william.qiu@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [171.223.208.138] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX168.cuchost.com (172.16.6.78) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230825_011422_572998_A614EF6D X-CRM114-Status: UNSURE ( 8.93 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add StarFive JH7110 PWM controller node and add PWM pins configuration on VisionFive 2 board. Reviewed-by: Hal Feng Signed-off-by: William Qiu --- .../jh7110-starfive-visionfive-2.dtsi | 22 +++++++++++++++++++ arch/riscv/boot/dts/starfive/jh7110.dtsi | 9 ++++++++ 2 files changed, 31 insertions(+) -- 2.34.1 diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi index fa0061eb33a7..eba7331e1fe1 100644 --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi @@ -143,6 +143,12 @@ &i2c6 { status = "okay"; }; +&ptc { + pinctrl-names = "default"; + pinctrl-0 = <&pwm_pins>; + status = "okay"; +}; + &sysgpio { i2c0_pins: i2c0-0 { i2c-pins { @@ -200,6 +206,22 @@ GPOEN_SYS_I2C6_DATA, }; }; + pwm_pins: pwm-0 { + pwm-pins { + pinmux = , + ; + bias-disable; + drive-strength = <12>; + input-disable; + input-schmitt-disable; + slew-rate = <0>; + }; + }; + uart0_pins: uart0-0 { tx-pins { pinmux = ; + clocks = <&syscrg JH7110_SYSCLK_PWM_APB>; + resets = <&syscrg JH7110_SYSRST_PWM_APB>; + #pwm-cells = <3>; + status = "disabled"; + }; + syscrg: clock-controller@13020000 { compatible = "starfive,jh7110-syscrg"; reg = <0x0 0x13020000 0x0 0x10000>; From patchwork Fri Aug 25 08:13:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: William Qiu X-Patchwork-Id: 13365139 X-Patchwork-Delegate: mail@conchuod.ie 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 89BBFC3DA66 for ; Fri, 25 Aug 2023 08:14:26 +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=sWcoBqp9xQmSeApStA2/q3EIoyJA4a6wn13+bE0mlFM=; b=PwM78qTHBtEk/G HcQYFQ34fN0PQLbFy7PPwW+PdbucucjkCqvjZk7NiV78zbkYntycqIYNXW7xZqmTOM7PUuOWVoiK6 GYHAL6+SfzZygOFHfCCAaigJATUvP7B3YaTB4gq+zN+VAE/U2bHeNQ5FNxI4rvGsKoQBU46OMgSJ5 Jg7YMwjyIDRD6rc6wRhUA63pTbKsV4wt3WZWR5X6i7vMiKX7dICPUr9veCbyw4VSAW4hj9jMAdAQ0 tx7ItUle3YrintOfDJPemC+WHGq8fgYZ2RI0olQikuPz5lztxZB+Unv3Q8BjW9fjXKNIuWVmfDDWv fJJoOv5OmuV6e/JgIdGA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxW-004brw-0u; Fri, 25 Aug 2023 08:14:22 +0000 Received: from fd01.gateway.ufhost.com ([61.152.239.71]) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZRxQ-004blU-2g for linux-riscv@lists.infradead.org; Fri, 25 Aug 2023 08:14:19 +0000 Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by fd01.gateway.ufhost.com (Postfix) with ESMTP id 7654680B6; Fri, 25 Aug 2023 16:13:33 +0800 (CST) Received: from EXMBX168.cuchost.com (172.16.6.78) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:33 +0800 Received: from williamqiu-virtual-machine.starfivetech.com (171.223.208.138) by EXMBX168.cuchost.com (172.16.6.78) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Fri, 25 Aug 2023 16:13:32 +0800 From: William Qiu To: , , , CC: Emil Renner Berthing , Rob Herring , Philipp Zabel , Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Krzysztof Kozlowski , Conor Dooley , "Paul Walmsley" , Palmer Dabbelt , Albert Ou , Hal Feng , William Qiu Subject: [RFC v4 4/4] riscv: dts: starfive: jh7100: Add PWM node and pins configuration Date: Fri, 25 Aug 2023 16:13:28 +0800 Message-ID: <20230825081328.204442-5-william.qiu@starfivetech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230825081328.204442-1-william.qiu@starfivetech.com> References: <20230825081328.204442-1-william.qiu@starfivetech.com> MIME-Version: 1.0 X-Originating-IP: [171.223.208.138] X-ClientProxiedBy: EXCAS062.cuchost.com (172.16.6.22) To EXMBX168.cuchost.com (172.16.6.78) X-YovoleRuleAgent: yovoleflag X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230825_011417_227621_13BB2AA0 X-CRM114-Status: UNSURE ( 8.52 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add StarFive JH7100 PWM controller node and add PWM pins configuration on VisionFive 2 board. Signed-off-by: William Qiu Reviewed-by: Hal Feng --- .../boot/dts/starfive/jh7100-common.dtsi | 24 +++++++++++++++++++ arch/riscv/boot/dts/starfive/jh7100.dtsi | 9 +++++++ 2 files changed, 33 insertions(+) -- 2.34.1 diff --git a/arch/riscv/boot/dts/starfive/jh7100-common.dtsi b/arch/riscv/boot/dts/starfive/jh7100-common.dtsi index b93ce351a90f..746867b882b0 100644 --- a/arch/riscv/boot/dts/starfive/jh7100-common.dtsi +++ b/arch/riscv/boot/dts/starfive/jh7100-common.dtsi @@ -84,6 +84,24 @@ GPO_I2C2_PAD_SDA_OEN, }; }; + pwm_pins: pwm-0 { + pwm-pins { + pinmux = , + ; + bias-disable; + drive-strength = <35>; + input-disable; + input-schmitt-disable; + slew-rate = <0>; + }; + }; + uart3_pins: uart3-0 { rx-pins { pinmux = ; }; +&ptc { + pinctrl-names = "default"; + pinctrl-0 = <&pwm_pins>; + status = "okay"; +}; + &uart3 { pinctrl-names = "default"; pinctrl-0 = <&uart3_pins>; diff --git a/arch/riscv/boot/dts/starfive/jh7100.dtsi b/arch/riscv/boot/dts/starfive/jh7100.dtsi index 4218621ea3b9..7f5bb19e636e 100644 --- a/arch/riscv/boot/dts/starfive/jh7100.dtsi +++ b/arch/riscv/boot/dts/starfive/jh7100.dtsi @@ -248,5 +248,14 @@ watchdog@12480000 { resets = <&rstgen JH7100_RSTN_WDTIMER_APB>, <&rstgen JH7100_RSTN_WDT>; }; + + ptc: pwm@12490000 { + compatible = "starfive,jh7100-pwm"; + reg = <0x0 0x12490000 0x0 0x10000>; + clocks = <&clkgen JH7100_CLK_PWM_APB>; + resets = <&rstgen JH7100_RSTN_PWM_APB>; + #pwm-cells = <3>; + status = "disabled"; + }; }; };