From patchwork Fri Jan 6 13:58:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein X-Patchwork-Id: 40139 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp838331wrt; Fri, 6 Jan 2023 06:00:41 -0800 (PST) X-Google-Smtp-Source: AMrXdXuiuhS+JTUNWgtGA9fl4EBdmezvfNvNJsmklAqSTvfgeWizKZwpHVhod038yGcW5dnVt1M+ X-Received: by 2002:a05:6402:450a:b0:491:ac3e:41b5 with SMTP id ez10-20020a056402450a00b00491ac3e41b5mr6096829edb.33.1673013641225; Fri, 06 Jan 2023 06:00:41 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673013641; cv=none; d=google.com; s=arc-20160816; b=ptNUv2ww+RGn2X9UGeJWrAdKvicADqjydMXHlFsB80PHSTlVSAeTbKooRp5aKeowHq QSxTOfppdx0MZI8TbZSdO1HA+LzEvERcsC0/KP72GwDRTVE+tuqJzxp3BRCg0xVrty0n z5tR+LKP+6xmR3D0aba5BOcLwpECHBQXTKqr8OAAzLariEIaHuO6JtDLiaX/e9PW378R tGJXAFOUvOEwRSbNqq3JCDekWM1FVBC7AGCKgPPEapPLM1SKvD7wsAA6t7V5F6ZKliog eadnITlI3tKr23lCP56fx5/V9KcmgrOrl72h72dbAkBehB4XlgtXdBzX/7esA2Dr/dpg Rjog== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=6k6iH6ye4eNPwympT1HKSV19Z/5AZl0oVvTiapSuckY=; b=0pPzaMnR0P1m54rgBXaH/7q3l1KS4KS0ZKgExm6QaWWOmceoLvsp4lirDLiZY15iHv OJ3jAoJdGEOUOG8W+NOJfE2Xo+Iu84EiG+ZNKu3V8L0vu6LjGDD76/r/Gj21CJRchSdU f/taB6SKkRCcQ6hhVED/A5FzL8CFXBJ4KvEXNrM6PlPL/symclKDTXT/9/PSLNa7bRDJ /13byhivNMhjPgaZqOC0QrspTjMk1x3HgK5wZZ2TfmnJeEmpzCeVSo6HJp/pSs6skMYb a4wfphjU37GaUxMiOsw6tAQm57AGMjilKpAIhWgeLJdsbiKncdY3oZnbmZNy706S32R3 piGQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=d5wSGisg; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id b12-20020a056402350c00b0048c5062f15bsi1901517edd.386.2023.01.06.06.00.16; Fri, 06 Jan 2023 06:00:41 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=d5wSGisg; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234616AbjAFOAG (ORCPT + 99 others); Fri, 6 Jan 2023 09:00:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47852 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234727AbjAFN7r (ORCPT ); Fri, 6 Jan 2023 08:59:47 -0500 Received: from mail-wm1-x32c.google.com (mail-wm1-x32c.google.com [IPv6:2a00:1450:4864:20::32c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 944A278150; Fri, 6 Jan 2023 05:59:44 -0800 (PST) Received: by mail-wm1-x32c.google.com with SMTP id ay40so1112367wmb.2; Fri, 06 Jan 2023 05:59:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=6k6iH6ye4eNPwympT1HKSV19Z/5AZl0oVvTiapSuckY=; b=d5wSGisgrvwYafyq3ycpqsF857ErZCeCRhvsVrA0CxojhnPy9m3G6+nR0o9CYOCKmo i1y22ry6WnjF/LXPgItplCXXO1SrDVbma1vah1FnmoxWLn4H4YszS9Qmkk50umr0kFKI CsDUoT/xIu/DzkgvRHNgUqPvRPIahVJnjkKyUHCAcDbtgXphQ6KNff85c+4ZFa2JuVnm Twrir9GN22TLT0YA4g0x6z167dCCtcCHWQUxwedJhNhoHU4Z0GI3SXzGhPpshJltvOXZ eD5twvkn68nUmYsqXEqH/Q35X3BFfWXqL8RRpNX568bS/rHGlifExpQFdBR5PjN8N6hY LXHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=6k6iH6ye4eNPwympT1HKSV19Z/5AZl0oVvTiapSuckY=; b=vYZfW+kvfyOTJPgUvT3Fte3iCkZF2FJ4bAI6Tq0jDpZigAwYhj1GR0ovCCx01q/NkY htWCMjJupdeS810vlYSiflA4PJCF/rWosssmcqGVkxyUuhgJtSmNA+EJJldOA4rDsklS MrPGqmyoScm2ExLPy/kvVnLdooH60ME8TXQRrTZkKRoq16PSkLprmoH5RMSiR/U+7vyj J5QtO9ZX8mvfUYSQ7+dkDokmcVLorbQ++ucMeSbDoBvxFaZ+xkAMd/FbJ9YtCWUereQ3 blj3QmkMUZ/g6bjd8mdDbVni00M15/9Qi6WoK5JxpDmkm+eOisIMKJb+7FAy48NRpf9t lVdA== X-Gm-Message-State: AFqh2ko8NjIeZItPRtodB9UgFXNwem8Kjx4C0UHXhiNOQCD1GJfEXNb+ aKR3P403YBhyeCBW5kDTzB4= X-Received: by 2002:a05:600c:2d91:b0:3cf:735c:9d54 with SMTP id i17-20020a05600c2d9100b003cf735c9d54mr38771335wmg.1.1673013583162; Fri, 06 Jan 2023 05:59:43 -0800 (PST) Received: from localhost ([212.253.112.114]) by smtp.gmail.com with UTF8SMTPSA id o9-20020a05600c510900b003c6f8d30e40sm7279485wms.31.2023.01.06.05.59.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Jan 2023 05:59:42 -0800 (PST) From: Sasha Finkelstein To: u.kleine-koenig@pengutronix.de, thierry.reding@gmail.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org Cc: marcan@marcan.st, sven@svenpeter.dev, alyssa@rosenzweig.io, asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sasha Finkelstein , Krzysztof Kozlowski Subject: [PATCH v6 1/5] dt-bindings: pwm: Add Apple PWM controller Date: Fri, 6 Jan 2023 16:58:37 +0300 Message-Id: <20230106135839.18676-2-fnkl.kernel@gmail.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20230106135839.18676-1-fnkl.kernel@gmail.com> References: <20230106135839.18676-1-fnkl.kernel@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754281951723923489?= X-GMAIL-MSGID: =?utf-8?q?1754281951723923489?= 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 --- .../bindings/pwm/apple,s5l-fpwm.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml 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 Jan 6 13:58:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein X-Patchwork-Id: 40140 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp838556wrt; Fri, 6 Jan 2023 06:01:02 -0800 (PST) X-Google-Smtp-Source: AMrXdXs40KStAWDsruOfwHLeXZPArGR1vXDg1ahBf6cd+DRHuepEtQRoSqz7MwLqvp2nthS5pAiG X-Received: by 2002:a17:907:c301:b0:7fd:ecee:c8ba with SMTP id tl1-20020a170907c30100b007fdeceec8bamr71421716ejc.42.1673013662205; Fri, 06 Jan 2023 06:01:02 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673013662; cv=none; d=google.com; s=arc-20160816; b=rX6YXZe5CW7JKZo4BnHSkyXrMvsuqN0hpiRlQHtPNGfRn+ICghrVKA1An9CghApT60 7Xinql8GfnQl7AlbZ3mWWydSPSmT+Z4+eNEgHHS0NTW96OyQPlleanCUu7yAYsBKXo3g 6Ny6j2ZVkMXwvpX+mvnVXPpJTKr0AImGlSjCOosDRKPdQtRSMszzfAnss0f3uGUyw7BO b6U/LnD8gO9cdXTf9jpSy9WwqDoXbUD3c9e/UQN2IVSDPAYbItoN6EXJ6v1AZ1D2LYF7 WvWburEts3/2LfYrqg8KCMErvjwk4u4xDWY+VTiMGWHGPJW0QdDyaYaJUXfvj4CsSyRh 5nlQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=CpKI3Dve8qIUFTav6wfzesFYfqvUQrR/d52mIqaXNlo=; b=tlR70fCchB1+A2HkNGGihCwDxG9DKJMSp0XlC7mxdi25RB8GrqmqcQXM80jfCAofUg JDrk2kLEtNsyt9XS/m7WTnfY9YzqO97dFOq7SZwb9pLlOx2JVC6SIvF/RaH0taS02yVq LMRMOpXqwIIMC5F/zTV/4Sre4nPK5gVsbme2lFqB82QQNIeR2dcmiI6II44DnyeRpMg/ grZlGrkQf/xM71e2GiJIlzo0yl9eK1PIdYBK8fA9JVOWr4bMy/D5P0riUP25mEfJmZht d8nXWvMA+KsUbFrTESicewN00bba2db9lc+Zf5KiNvySr7FFb8vtPOVaV703Y7OnqHBy v8qg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=ZAYHfi0k; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (out1.vger.email. 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Signed-off-by: Sasha Finkelstein Acked-by: Sven Peter --- drivers/pwm/Kconfig | 12 ++++ drivers/pwm/Makefile | 1 + drivers/pwm/pwm-apple.c | 156 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 169 insertions(+) create mode 100644 drivers/pwm/pwm-apple.c 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..5360583a5fa6 --- /dev/null +++ b/drivers/pwm/pwm-apple.c @@ -0,0 +1,156 @@ +// 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. + */ + +#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_CTRL_ENABLE BIT(0) +#define APPLE_CTRL_MODE BIT(2) +#define APPLE_CTRL_UPDATE BIT(5) +#define APPLE_CTRL_TRIGGER BIT(9) +#define APPLE_CTRL_INVERT BIT(10) +#define APPLE_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) + return -ERANGE; + + 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_CTRL_ENABLE | APPLE_CTRL_OUTPUT_ENABLE | APPLE_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_CTRL_ENABLE) && (ctrl & APPLE_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 dev_err_probe(&pdev->dev, PTR_ERR(fpwm->base), "unable to map mmio"); + + 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 + */ + 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 Jan 6 13:58:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein X-Patchwork-Id: 40141 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp838622wrt; Fri, 6 Jan 2023 06:01:07 -0800 (PST) X-Google-Smtp-Source: AMrXdXsDEEskTtaDwCdQwmuVBuLgZiMgWPOY3p/pV8g+IT52wga6qnaEtdoyyojJs3XZ7zZaHXNY X-Received: by 2002:a17:907:a803:b0:7c3:15cc:76d0 with SMTP id vo3-20020a170907a80300b007c315cc76d0mr57724556ejc.47.1673013667206; Fri, 06 Jan 2023 06:01:07 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673013667; cv=none; 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bh=K3DSO2nFSdxMzrHJBYG74NM4oJgLnjp9dkanZv0gHOQ=; b=MfDB7LzqV1rTn8Rw3l3S0WwDS+rF4YRGvRcXdc2/pbAn7ADv5hMZ15I9T3eWnpjqHQ GdaLFk+ync2vyBVJyJyMDYrvrQtB306r72U8LUDlWO2XMYQsTqCDxKCA7m6I/9U4nE7M h18umfNc4Umb6HodAjvL+4HBQ9jAdJirs/AKJdK/JcJWc3454fk9oouqs8pgXkbb8I+u LvUDBuEUopBVXU6MvheUGJI3CPN+WM7ea5gaL6d9cyo1SO0DZu5wNv2TVVGMZID86TDx ziewc+UeYXnJPsC2r66OREvEorK7fTQ3PHIN32KSStoaKG7S+ZfPdCmIm+uM/cOdCIPG dYYw== X-Gm-Message-State: AFqh2kokeHCgoYFoHGdrzvCSVxJMfzfpE8h8qWuyfZsAbMZEhS2FnnGD rDqScczH7OXs/loFXIESi94= X-Received: by 2002:a05:600c:3b0a:b0:3d9:91cb:bbff with SMTP id m10-20020a05600c3b0a00b003d991cbbbffmr24761921wms.26.1673013614525; Fri, 06 Jan 2023 06:00:14 -0800 (PST) Received: from localhost ([212.253.112.114]) by smtp.gmail.com with UTF8SMTPSA id r5-20020a05600c35c500b003d98f92692fsm2102274wmq.17.2023.01.06.06.00.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Jan 2023 06:00:14 -0800 (PST) From: Sasha Finkelstein To: u.kleine-koenig@pengutronix.de, thierry.reding@gmail.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org Cc: marcan@marcan.st, sven@svenpeter.dev, alyssa@rosenzweig.io, asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sasha Finkelstein Subject: [PATCH v6 3/5] arm64: dts: apple: t8103: Add PWM controller Date: Fri, 6 Jan 2023 16:58:41 +0300 Message-Id: <20230106135839.18676-4-fnkl.kernel@gmail.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20230106135839.18676-1-fnkl.kernel@gmail.com> References: <20230106135839.18676-1-fnkl.kernel@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1754281978716413930?= X-GMAIL-MSGID: =?utf-8?q?1754281978716413930?= 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..7381dccc1613 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"; +}; \ No newline at end of file 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 Jan 6 13:58:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein X-Patchwork-Id: 40142 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp838770wrt; 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}; + 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"; + }; + serial0: serial@39b200000 { compatible = "apple,s5l-uart"; reg = <0x3 0x9b200000 0x0 0x1000>; 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 Jan 6 13:58:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein X-Patchwork-Id: 40143 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4e01:0:0:0:0:0 with SMTP id p1csp839645wrt; Fri, 6 Jan 2023 06:02:32 -0800 (PST) X-Google-Smtp-Source: AMrXdXvzqLLsxabhJTeHAi7vPXfLvBzwiyOlDit4D38dhCJpKV9rH/Uir3itb3EX0d7NGGZ6s60F X-Received: by 2002:a17:907:a488:b0:84d:2171:d79 with SMTP id vp8-20020a170907a48800b0084d21710d79mr1522368ejc.54.1673013752501; Fri, 06 Jan 2023 06:02:32 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1673013752; cv=none; d=google.com; s=arc-20160816; b=eSTvjbAeh3D7BMP+EYmITSfFJSk7EiP/DwuOLS1wKkrYtfrBK5vCK3uTcc87MSY2Fw Kb/OlovzbYTj958XEY3LmG1WEfxHkpw6iNEJYnEHeJTpGbJQF6kgHRy906JXoIiEPJ2C 0Um52SmW3e8fzciejGVazdLPqYJ30ZtsLJW4Ehs3Qm03hkPR0PzVLdq9gEyStLiQ+Dth hrWafIGgdAokMtQiBfoYI2uyzeVhO3+JEL+htQif90e7oMjztNmhvEVD9Fe/uYw9fRsk d/hXrxPhrTHLT763+ewNrDYjjqSpRWgci1VMcvAwVj+sRwAhnRklAcZcX2aPT0pNZUff 9CNQ== ARC-Message-Signature: i=1; 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