From patchwork Fri Mar 10 18:44:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein via B4 Relay X-Patchwork-Id: 13169953 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 4FD92C6FA99 for ; Fri, 10 Mar 2023 18:45:54 +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:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References: Message-Id:MIME-Version:Subject:Date:From:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ICO5/VEmdfjvf2h4A3qOUpuGACpq/W9Dj4kpSL+DxwM=; b=kmSoynK2HLPT9d L7aT2pcb/6+YgflPPzWMhJQTcw+Q9J4vpI8nHWAWZJ0WlW74pztYxtrjlYKL/9ffy5cXRS3MQl4Sw t6DjpUZJI9C390j/VKjd5FTQVaye3tnISOe1u+K4dorcEU6WF+N+jbwivDQdEt/WLSbuPm4y/uAsj 1dt84UkjihNIvma/2OmyTNDM20fwVwyu1EUuJIg3TYPvMsmsSOB7uIOgPyZDSv4bj4eWYwaNzGFN0 FnyouUtUzRoHbLwzBVeujf3qVTLuUIGExjYFM85XLbEYaYG7gWPzk/v/9OKHJktxDXlkiX08SQqfj K+76BZmq60YiJVMSufVw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pahjc-00FnIx-4n; Fri, 10 Mar 2023 18:44:56 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pahj0-00Fn51-LX for linux-arm-kernel@lists.infradead.org; Fri, 10 Mar 2023 18:44:20 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sin.source.kernel.org (Postfix) with ESMTPS id 0151ACE297A; Fri, 10 Mar 2023 18:44:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 39E0BC433EF; Fri, 10 Mar 2023 18:44:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1678473850; bh=fNduKqqPUYV6F1M5u00Pcrdw5zzaBtWuks1TRf+NJ/0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=O+kQGfvDfMr4K7ttGaXYLHW42p1+bGSyaXgGVIrfNWDGvhHjk/bBarxOoun/fjsA3 R++CyI4s01XKNiTWWP1SYM7Q69/zyVDzEouBv6ZxDiqEUFzoIvr3zl7CKZAytweTZc W9tx9fRFIQDrPScba5LKQBjJ44vRlbcMmA+W9ssCIk1f3OehTO6YFQByoRTEQT64Zc 9EpvMco7+2kxa/PiUgakMqLnUZ08MrpaGawHkIuXCXf0YmewL5eN2JnjIvnwL93jMB 5LJpsSdev0TF/5V9aKujzxIglD50QpCz19xZY+DFNwbDYF1Fb2XBpq0Hq+/54KP8sA uc6O96YC/scnw== 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 1C3A5C6FD1C; Fri, 10 Mar 2023 18:44:10 +0000 (UTC) From: Sasha Finkelstein via B4 Relay Date: Fri, 10 Mar 2023 19:44:07 +0100 Subject: [PATCH v8 1/5] dt-bindings: pwm: Add Apple PWM controller MIME-Version: 1.0 Message-Id: <20230214-fpwm-v8-1-65518a0d4944@gmail.com> References: <20230214-fpwm-v8-0-65518a0d4944@gmail.com> In-Reply-To: <20230214-fpwm-v8-0-65518a0d4944@gmail.com> To: Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , Rob Herring , Krzysztof Kozlowski , - , Sasha Finkelstein , Hector Martin , Sven Peter , Alyssa Rosenzweig Cc: linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Krzysztof Kozlowski X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1678473848; l=1759; i=fnkl.kernel@gmail.com; s=20230213; h=from:subject:message-id; bh=BeW75+AIFJcFrpFjOZabHWBRDLlSvckpqesK7uzTCx4=; b=/vTGd02mkahO4nOW3DJTyFY7h2pzCXFuk1VQ99SdbaFb+bj7m7O9RB6ZxgZuRhbVaXY0cKb1/ JWnTavY++JJCkpOU5xYbvCd3JLp2XSgpiNqeGgUdh/NBKc3pzYSgJsp X-Developer-Key: i=fnkl.kernel@gmail.com; a=ed25519; pk=7LFSAJtxIWAs9LzCIyX0sSvCZy2wQTyEIu1zch6o804= X-Endpoint-Received: by B4 Relay for fnkl.kernel@gmail.com/20230213 with auth_id=28 X-Original-From: Sasha Finkelstein X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230310_104419_431363_DADD6C86 X-CRM114-Status: GOOD ( 13.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: fnkl.kernel@gmail.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Sasha Finkelstein Apple SoCs such as the M1 contain a PWM controller used among other things to control the keyboard backlight. Signed-off-by: Sasha Finkelstein Reviewed-by: Krzysztof Kozlowski Acked-by: Sven Peter --- .../devicetree/bindings/pwm/apple,s5l-fpwm.yaml | 51 ++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml b/Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml new file mode 100644 index 000000000000..142157bff0cd --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/apple,s5l-fpwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple FPWM controller + +maintainers: + - asahi@lists.linux.dev + - Sasha Finkelstein + +description: PWM controller used for keyboard backlight on ARM Macs + +properties: + compatible: + items: + - enum: + - apple,t8103-fpwm + - apple,t6000-fpwm + - apple,t8112-fpwm + - const: apple,s5l-fpwm + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + "#pwm-cells": + const: 2 + +required: + - compatible + - reg + - clocks + +additionalProperties: false + +examples: + - | + pwm@235044000 { + compatible = "apple,t8103-fpwm", "apple,s5l-fpwm"; + reg = <0x35044000 0x4000>; + power-domains = <&ps_fpwm1>; + clocks = <&clkref>; + #pwm-cells = <2>; + }; From patchwork Fri Mar 10 18:44:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Sasha Finkelstein via B4 Relay X-Patchwork-Id: 13169949 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 B44D4C6FD19 for ; Fri, 10 Mar 2023 18:45:21 +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:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References: Message-Id:MIME-Version:Subject:Date:From:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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a=ed25519-sha256; t=1678473848; l=6524; i=fnkl.kernel@gmail.com; s=20230213; h=from:subject:message-id; bh=4cKWWrqKae5PqZqP8MFhc2NSJxtnL2SK4hGact1OsuA=; b=4cQXVIJxHOe5ss/E4gkh+0E/59+wr38EEUEgLWfGhrs4XmEoXuTmukAZ6JAfCllaEXVDb+wq9 w6YfM3W0p1xA2E7gUKPwG1757NBp4fskJtyoCVXE8YaO0HltU7L3NFH X-Developer-Key: i=fnkl.kernel@gmail.com; a=ed25519; pk=7LFSAJtxIWAs9LzCIyX0sSvCZy2wQTyEIu1zch6o804= X-Endpoint-Received: by B4 Relay for fnkl.kernel@gmail.com/20230213 with auth_id=28 X-Original-From: Sasha Finkelstein X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230310_104412_576382_0700446B X-CRM114-Status: GOOD ( 28.22 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: fnkl.kernel@gmail.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Sasha Finkelstein Adds the Apple PWM controller driver. Signed-off-by: Sasha Finkelstein Acked-by: Sven Peter Reviewed-by: Uwe Kleine-König --- drivers/pwm/Kconfig | 12 ++++ drivers/pwm/Makefile | 1 + drivers/pwm/pwm-apple.c | 159 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 172 insertions(+) diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig index dae023d783a2..8df861b1f4a3 100644 --- a/drivers/pwm/Kconfig +++ b/drivers/pwm/Kconfig @@ -51,6 +51,18 @@ config PWM_AB8500 To compile this driver as a module, choose M here: the module will be called pwm-ab8500. +config PWM_APPLE + tristate "Apple SoC PWM support" + depends on ARCH_APPLE || COMPILE_TEST + help + Generic PWM framework driver for PWM controller present on + Apple SoCs + + Say Y here if you have an ARM Apple laptop, otherwise say N + + To compile this driver as a module, choose M here: the module + will be called pwm-apple. + config PWM_ATMEL tristate "Atmel PWM support" depends on ARCH_AT91 || COMPILE_TEST diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile index 7bf1a29f02b8..19899b912e00 100644 --- a/drivers/pwm/Makefile +++ b/drivers/pwm/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_PWM) += core.o obj-$(CONFIG_PWM_SYSFS) += sysfs.o obj-$(CONFIG_PWM_AB8500) += pwm-ab8500.o +obj-$(CONFIG_PWM_APPLE) += pwm-apple.o obj-$(CONFIG_PWM_ATMEL) += pwm-atmel.o obj-$(CONFIG_PWM_ATMEL_HLCDC_PWM) += pwm-atmel-hlcdc.o obj-$(CONFIG_PWM_ATMEL_TCB) += pwm-atmel-tcb.o diff --git a/drivers/pwm/pwm-apple.c b/drivers/pwm/pwm-apple.c new file mode 100644 index 000000000000..e028e4675328 --- /dev/null +++ b/drivers/pwm/pwm-apple.c @@ -0,0 +1,159 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/* + * Driver for the Apple SoC PWM controller + * + * Copyright The Asahi Linux Contributors + * + * Limitations: + * - The writes to cycle registers are shadowed until a write to + * the control register. + * - If both OFF_CYCLES and ON_CYCLES are set to 0, the output + * is a constant off signal. + * - When APPLE_PWM_CTRL is set to 0, the output is constant low + */ + +#include +#include +#include +#include +#include +#include + +#define APPLE_PWM_CTRL 0x00 +#define APPLE_PWM_ON_CYCLES 0x1c +#define APPLE_PWM_OFF_CYCLES 0x18 + +#define APPLE_PWM_CTRL_ENABLE BIT(0) +#define APPLE_PWM_CTRL_MODE BIT(2) +#define APPLE_PWM_CTRL_UPDATE BIT(5) +#define APPLE_PWM_CTRL_TRIGGER BIT(9) +#define APPLE_PWM_CTRL_INVERT BIT(10) +#define APPLE_PWM_CTRL_OUTPUT_ENABLE BIT(14) + +struct apple_pwm { + struct pwm_chip chip; + void __iomem *base; + u64 clkrate; +}; + +static inline struct apple_pwm *to_apple_pwm(struct pwm_chip *chip) +{ + return container_of(chip, struct apple_pwm, chip); +} + +static int apple_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, + const struct pwm_state *state) +{ + struct apple_pwm *fpwm; + + if (state->polarity == PWM_POLARITY_INVERSED) + return -EINVAL; + + fpwm = to_apple_pwm(chip); + if (state->enabled) { + u64 on_cycles, off_cycles; + + on_cycles = mul_u64_u64_div_u64(fpwm->clkrate, + state->duty_cycle, NSEC_PER_SEC); + if (on_cycles > 0xFFFFFFFF) + on_cycles = 0xFFFFFFFF; + + off_cycles = mul_u64_u64_div_u64(fpwm->clkrate, + state->period, NSEC_PER_SEC) - on_cycles; + if (off_cycles > 0xFFFFFFFF) + return -ERANGE; + + writel(on_cycles, fpwm->base + APPLE_PWM_ON_CYCLES); + writel(off_cycles, fpwm->base + APPLE_PWM_OFF_CYCLES); + writel(APPLE_PWM_CTRL_ENABLE | APPLE_PWM_CTRL_OUTPUT_ENABLE | APPLE_PWM_CTRL_UPDATE, + fpwm->base + APPLE_PWM_CTRL); + } else { + writel(0, fpwm->base + APPLE_PWM_CTRL); + } + return 0; +} + +static int apple_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, + struct pwm_state *state) +{ + struct apple_pwm *fpwm; + u32 on_cycles, off_cycles, ctrl; + + fpwm = to_apple_pwm(chip); + + ctrl = readl(fpwm->base + APPLE_PWM_CTRL); + on_cycles = readl(fpwm->base + APPLE_PWM_ON_CYCLES); + off_cycles = readl(fpwm->base + APPLE_PWM_OFF_CYCLES); + + state->enabled = (ctrl & APPLE_PWM_CTRL_ENABLE) && (ctrl & APPLE_PWM_CTRL_OUTPUT_ENABLE); + state->polarity = PWM_POLARITY_NORMAL; + // on_cycles + off_cycles is 33 bits, NSEC_PER_SEC is 30, there is no overflow + state->duty_cycle = DIV64_U64_ROUND_UP((u64)on_cycles * NSEC_PER_SEC, fpwm->clkrate); + state->period = DIV64_U64_ROUND_UP(((u64)off_cycles + (u64)on_cycles) * + NSEC_PER_SEC, fpwm->clkrate); + + return 0; +} + +static const struct pwm_ops apple_pwm_ops = { + .apply = apple_pwm_apply, + .get_state = apple_pwm_get_state, + .owner = THIS_MODULE, +}; + +static int apple_pwm_probe(struct platform_device *pdev) +{ + struct apple_pwm *fpwm; + struct clk *clk; + int ret; + + fpwm = devm_kzalloc(&pdev->dev, sizeof(*fpwm), GFP_KERNEL); + if (!fpwm) + return -ENOMEM; + + fpwm->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(fpwm->base)) + return PTR_ERR(fpwm->base); + + clk = devm_clk_get_enabled(&pdev->dev, NULL); + if (IS_ERR(clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(clk), "unable to get the clock"); + + /* + * Uses the 24MHz system clock on all existing devices, can only + * happen if the device tree is broken + * + * This check is done to prevent an overflow in .apply + */ + fpwm->clkrate = clk_get_rate(clk); + if (fpwm->clkrate > NSEC_PER_SEC) + return dev_err_probe(&pdev->dev, -EINVAL, "pwm clock out of range"); + + fpwm->chip.dev = &pdev->dev; + fpwm->chip.npwm = 1; + fpwm->chip.ops = &apple_pwm_ops; + + ret = devm_pwmchip_add(&pdev->dev, &fpwm->chip); + if (ret < 0) + return dev_err_probe(&pdev->dev, ret, "unable to add pwm chip"); + + return 0; +} + +static const struct of_device_id apple_pwm_of_match[] = { + { .compatible = "apple,s5l-fpwm" }, + {} +}; +MODULE_DEVICE_TABLE(of, apple_pwm_of_match); + +static struct platform_driver apple_pwm_driver = { + .probe = apple_pwm_probe, + .driver = { + .name = "apple-pwm", + .of_match_table = apple_pwm_of_match, + }, +}; +module_platform_driver(apple_pwm_driver); + +MODULE_DESCRIPTION("Apple SoC PWM driver"); +MODULE_LICENSE("Dual MIT/GPL"); From patchwork Fri Mar 10 18:44:09 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein via B4 Relay X-Patchwork-Id: 13169952 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 6CF89C74A44 for ; Fri, 10 Mar 2023 18:45:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; 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Fri, 10 Mar 2023 18:44:10 +0000 (UTC) From: Sasha Finkelstein via B4 Relay Date: Fri, 10 Mar 2023 19:44:09 +0100 Subject: [PATCH v8 3/5] arm64: dts: apple: t8103: Add PWM controller MIME-Version: 1.0 Message-Id: <20230214-fpwm-v8-3-65518a0d4944@gmail.com> References: <20230214-fpwm-v8-0-65518a0d4944@gmail.com> In-Reply-To: <20230214-fpwm-v8-0-65518a0d4944@gmail.com> To: Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , Rob Herring , Krzysztof Kozlowski , - , Sasha Finkelstein , Hector Martin , Sven Peter , Alyssa Rosenzweig Cc: linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1678473848; l=2869; i=fnkl.kernel@gmail.com; s=20230213; h=from:subject:message-id; bh=R6FVHucw/1bUgNYLGZV8OMhopQA9RB5yXaUd/bpvUDM=; b=cUg8P9AdXnzmDv14iHCuwOq60Rj1JRnKQrxEUbnY4smKJpzzZjIc95Yp40CWdTAgTpZapOS0J xW7z222gB53CNJxEh7CbjOjJTTs1JTUuHGpV5QAo+8wCeTXA2zDGd/J X-Developer-Key: i=fnkl.kernel@gmail.com; a=ed25519; pk=7LFSAJtxIWAs9LzCIyX0sSvCZy2wQTyEIu1zch6o804= X-Endpoint-Received: by B4 Relay for fnkl.kernel@gmail.com/20230213 with auth_id=28 X-Original-From: Sasha Finkelstein X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230310_104416_618996_80132C87 X-CRM114-Status: GOOD ( 12.12 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: fnkl.kernel@gmail.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Sasha Finkelstein Adds PWM controller and keyboard backlight bindings for M1 MacBooks Signed-off-by: Sasha Finkelstein Acked-by: Sven Peter --- arch/arm64/boot/dts/apple/t8103-j293.dts | 17 +++++++++++++++++ arch/arm64/boot/dts/apple/t8103-j313.dts | 17 +++++++++++++++++ arch/arm64/boot/dts/apple/t8103.dtsi | 9 +++++++++ 3 files changed, 43 insertions(+) diff --git a/arch/arm64/boot/dts/apple/t8103-j293.dts b/arch/arm64/boot/dts/apple/t8103-j293.dts index 151074109a11..fc55ce0fa40d 100644 --- a/arch/arm64/boot/dts/apple/t8103-j293.dts +++ b/arch/arm64/boot/dts/apple/t8103-j293.dts @@ -11,10 +11,23 @@ #include "t8103.dtsi" #include "t8103-jxxx.dtsi" +#include / { compatible = "apple,j293", "apple,t8103", "apple,arm-platform"; model = "Apple MacBook Pro (13-inch, M1, 2020)"; + + led-controller { + compatible = "pwm-leds"; + led-0 { + pwms = <&fpwm1 0 40000>; + label = "kbd_backlight"; + function = LED_FUNCTION_KBD_BACKLIGHT; + color = ; + max-brightness = <255>; + default-state = "keep"; + }; + }; }; &bluetooth0 { @@ -47,3 +60,7 @@ &i2c2 { &i2c4 { status = "okay"; }; + +&fpwm1 { + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/apple/t8103-j313.dts b/arch/arm64/boot/dts/apple/t8103-j313.dts index bc1f865aa790..1e26aa1ef525 100644 --- a/arch/arm64/boot/dts/apple/t8103-j313.dts +++ b/arch/arm64/boot/dts/apple/t8103-j313.dts @@ -11,10 +11,23 @@ #include "t8103.dtsi" #include "t8103-jxxx.dtsi" +#include / { compatible = "apple,j313", "apple,t8103", "apple,arm-platform"; model = "Apple MacBook Air (M1, 2020)"; + + led-controller { + compatible = "pwm-leds"; + led-0 { + pwms = <&fpwm1 0 40000>; + label = "kbd_backlight"; + function = LED_FUNCTION_KBD_BACKLIGHT; + color = ; + max-brightness = <255>; + default-state = "keep"; + }; + }; }; &bluetooth0 { @@ -39,3 +52,7 @@ &pcie0_dart_2 { /delete-node/ &port01; /delete-node/ &port02; + +&fpwm1 { + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index 9859219699f4..5300fd115561 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -432,6 +432,15 @@ i2c4: i2c@235020000 { status = "disabled"; /* only used in J293 */ }; + fpwm1: pwm@235044000 { + compatible = "apple,t8103-fpwm", "apple,s5l-fpwm"; + reg = <0x2 0x35044000 0x0 0x4000>; + power-domains = <&ps_fpwm1>; + clocks = <&clkref>; + #pwm-cells = <2>; + status = "disabled"; + }; + serial0: serial@235200000 { compatible = "apple,s5l-uart"; reg = <0x2 0x35200000 0x0 0x1000>; From patchwork Fri Mar 10 18:44:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein via B4 Relay X-Patchwork-Id: 13169951 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 849DFC6FA99 for ; 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Fri, 10 Mar 2023 18:44:10 +0000 (UTC) From: Sasha Finkelstein via B4 Relay Date: Fri, 10 Mar 2023 19:44:10 +0100 Subject: [PATCH v8 4/5] arm64: dts: apple: t600x: Add PWM controller MIME-Version: 1.0 Message-Id: <20230214-fpwm-v8-4-65518a0d4944@gmail.com> References: <20230214-fpwm-v8-0-65518a0d4944@gmail.com> In-Reply-To: <20230214-fpwm-v8-0-65518a0d4944@gmail.com> To: Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , Rob Herring , Krzysztof Kozlowski , - , Sasha Finkelstein , Hector Martin , Sven Peter , Alyssa Rosenzweig Cc: linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sasha Finkelstein <7d578vix8hzw@opayq.net> X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1678473848; l=2061; i=fnkl.kernel@gmail.com; s=20230213; h=from:subject:message-id; bh=kC8e0IqG+WMbKwdUXKBwuQCvwcxm5IAUASQM0mxJcPI=; b=F7yQVfm5aPAgMPY2ACL3tNlGDcgvbrejU0z+OT0V5MhYfS98A5n69rZljI4n3AUkzmNJicuiw MaoCf0W0Ew6DcboaGgTqXS25fr2IHrwLibz2RMQhdPEVu6iPi8UFACN X-Developer-Key: i=fnkl.kernel@gmail.com; a=ed25519; pk=7LFSAJtxIWAs9LzCIyX0sSvCZy2wQTyEIu1zch6o804= X-Endpoint-Received: by B4 Relay for fnkl.kernel@gmail.com/20230213 with auth_id=28 X-Original-From: Sasha Finkelstein X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230310_104412_730379_E5C85628 X-CRM114-Status: GOOD ( 11.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: fnkl.kernel@gmail.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Sasha Finkelstein <7d578vix8hzw@opayq.net> Adds PWM controller and keyboard backlight bindings for M1 Pro/Max MacBook Pros Signed-off-by: Sasha Finkelstein Acked-by: Hector Martin --- arch/arm64/boot/dts/apple/t600x-die0.dtsi | 9 +++++++++ arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi | 18 ++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/arch/arm64/boot/dts/apple/t600x-die0.dtsi b/arch/arm64/boot/dts/apple/t600x-die0.dtsi index 1c41954e3899..9157ae2a9f7f 100644 --- a/arch/arm64/boot/dts/apple/t600x-die0.dtsi +++ b/arch/arm64/boot/dts/apple/t600x-die0.dtsi @@ -71,6 +71,15 @@ sio_dart_1: iommu@39b008000 { power-domains = <&ps_sio_cpu>; }; + fpwm0: pwm@39b030000 { + compatible = "apple,t6000-fpwm", "apple,s5l-fpwm"; + reg = <0x3 0x9b030000 0x0 0x4000>; + power-domains = <&ps_fpwm0>; + clocks = <&clkref>; + #pwm-cells = <2>; + status = "disabled"; + }; + i2c0: i2c@39b040000 { compatible = "apple,t6000-i2c", "apple,i2c"; reg = <0x3 0x9b040000 0x0 0x4000>; diff --git a/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi b/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi index 34906d522f0a..96de7165df6d 100644 --- a/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi +++ b/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi @@ -9,6 +9,8 @@ * Copyright The Asahi Linux Contributors */ +#include + / { aliases { serial0 = &serial0; @@ -34,6 +36,18 @@ memory@10000000000 { device_type = "memory"; reg = <0x100 0 0x2 0>; /* To be filled by loader */ }; + + led-controller { + compatible = "pwm-leds"; + led-0 { + pwms = <&fpwm0 0 40000>; + label = "kbd_backlight"; + function = LED_FUNCTION_KBD_BACKLIGHT; + color = ; + max-brightness = <255>; + default-state = "keep"; + }; + }; }; &serial0 { @@ -110,5 +124,9 @@ &pcie0_dart_3 { status = "disabled"; }; +&fpwm0 { + status = "okay"; +}; + /delete-node/ &port02; /delete-node/ &port03; From patchwork Fri Mar 10 18:44:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein via B4 Relay X-Patchwork-Id: 13169950 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 545D1C6FA99 for ; Fri, 10 Mar 2023 18:45:23 +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:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References: Message-Id:MIME-Version:Subject:Date:From:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 10 Mar 2023 18:44:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 852E4C433AC; Fri, 10 Mar 2023 18:44:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1678473850; bh=DxASz2lknCh6bcl9lub36jkmurw78TkqTmOu4olxjho=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=qAQpfalztKPM1Hg6T6xX9v2s4ul17ZXD/3ekRyL6V2q+ViHx3MVCdyeivWevWePPd piOH4tG1TjRmVm9kz6H5Y4E/3RHWke7Kz0dNuePviOioK5TV7FxRvDKlxTOD6MGDEX qIR9Vmt8CGEpKKucB2t6m1y83/RQEC0lA1J8f+3XHlvFwaEhnn+UwDO3d+BEv7LXeC tB6JSeydevnsOsTXUK2lLrWL9QGLr2yVQoCNmdKwC0wwrX86vPC5I+WPduuoIytFL9 q/m1vrdPrhf2xLoDb/SKf3dh2fiZMWP9bczD9LqTkMXwsVgVa7fMo8BZPeVdZ/8CTp Dy7tTlfYFT8ew== 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 67AE4C74A44; Fri, 10 Mar 2023 18:44:10 +0000 (UTC) From: Sasha Finkelstein via B4 Relay Date: Fri, 10 Mar 2023 19:44:11 +0100 Subject: [PATCH v8 5/5] MAINTAINERS: Add entries for Apple PWM driver MIME-Version: 1.0 Message-Id: <20230214-fpwm-v8-5-65518a0d4944@gmail.com> References: <20230214-fpwm-v8-0-65518a0d4944@gmail.com> In-Reply-To: <20230214-fpwm-v8-0-65518a0d4944@gmail.com> To: Thierry Reding , =?utf-8?q?Uwe_Kleine-K=C3=B6n?= =?utf-8?q?ig?= , Rob Herring , Krzysztof Kozlowski , - , Sasha Finkelstein , Hector Martin , Sven Peter , Alyssa Rosenzweig Cc: linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-Mailer: b4 0.12.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1678473848; l=1109; i=fnkl.kernel@gmail.com; s=20230213; h=from:subject:message-id; bh=H0yqy74irk0iRnaCY9EguySiHLNBuNpFanSkZMAqDr0=; b=ty8TwQo11Z1cAyoRSio6JTxjGYIrLVadUutTZbmq/YWf6J8bFurORutZllhWghqquqzC0/K5h lN3fx1yMMguDRkHlnIIMtDqpSLoX9U1dR/MvQIENInn3AS816afUHwT X-Developer-Key: i=fnkl.kernel@gmail.com; a=ed25519; pk=7LFSAJtxIWAs9LzCIyX0sSvCZy2wQTyEIu1zch6o804= X-Endpoint-Received: by B4 Relay for fnkl.kernel@gmail.com/20230213 with auth_id=28 X-Original-From: Sasha Finkelstein X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230310_104412_702913_5B382DE2 X-CRM114-Status: GOOD ( 11.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: fnkl.kernel@gmail.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Sasha Finkelstein Add the MAINTAINERS entries for the driver Signed-off-by: Sasha Finkelstein Acked-by: Sven Peter --- MAINTAINERS | 2 ++ 1 file changed, 2 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 8d5bc223f305..7c0b7c2bb55f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1955,6 +1955,7 @@ F: Documentation/devicetree/bindings/nvmem/apple,efuses.yaml F: Documentation/devicetree/bindings/pci/apple,pcie.yaml F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml F: Documentation/devicetree/bindings/power/apple* +F: Documentation/devicetree/bindings/pwm/pwm-apple.yaml F: Documentation/devicetree/bindings/watchdog/apple,wdt.yaml F: arch/arm64/boot/dts/apple/ F: drivers/bluetooth/hci_bcm4377.c @@ -1970,6 +1971,7 @@ F: drivers/mailbox/apple-mailbox.c F: drivers/nvme/host/apple.c F: drivers/nvmem/apple-efuses.c F: drivers/pinctrl/pinctrl-apple-gpio.c +F: drivers/pwm/pwm-apple.c F: drivers/soc/apple/* F: drivers/watchdog/apple_wdt.c F: include/dt-bindings/interrupt-controller/apple-aic.h