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[2620:137:e000::1:20]) by mx.google.com with ESMTP id kk10-20020a17090b4a0a00b00219d1f4b86fsi1947385pjb.117.2022.12.09.03.17.28; Fri, 09 Dec 2022 03:17:53 -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=hrhgHHiK; 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 S229488AbiLILPI (ORCPT + 99 others); Fri, 9 Dec 2022 06:15:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229928AbiLILPB (ORCPT ); Fri, 9 Dec 2022 06:15:01 -0500 Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 865AE6F0CC; Fri, 9 Dec 2022 03:15:00 -0800 (PST) Received: by mail-wm1-x329.google.com with SMTP id o7-20020a05600c510700b003cffc0b3374so3185130wms.0; Fri, 09 Dec 2022 03:15:00 -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=hrhgHHiKsH7JP6w4UAYp9tudWblnD8ZqogfdP9k14lVZ6lXwBGwk0gcagrzu08jXes U69+zpsdP5w40wDcrxOc6UTPQBrM+zA8ETBzdH7MwItV3bTprVZJNnACsUR544QBV8LX AXE3pVSLox7781JxAax/vOlXJBwzpLgNGRELx/iuTvhCduJEuQd8YCSy01vpcVatdw2v E0FCqGrl9Vzf0dMHAas5NuqU2UPfbs3I7H4RHZlHQDJI6yKVvXGEXwFG6qsLaznEgzeB SMKc/aobVedkkLNA2fCVR+XKYyIXDqde20J0Qb25YA0sjxLzGS70P7+lMGLWMYCBJDNX oPLg== 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=gnoXJo9TgJaAZGdp2+4ktAUbTH9kNQD0kX6ryywny59UaCCDr+BWuwrcjBWJaie00T tPjxcR/4Bde4a07BICf5VtihUw2ohgUF86QbJuE/CpOsHu90M19yJ//ByBok0iTEMhFY /Hr3erkizfu47ZYfSM8PypTBtW9SwFGF3KvEi1vAjFm8VNV0t4+6aI3PhJHm4ABMZlBS tjMVVYj7pJpYXLFXTPBXE8kYodQTkFVN9ZUOfjumBRB8NaF13G/qdtmI/qzYCT6f6NzM funlJ8+6B7vc7BRUng/2lJcejQh4KS1L/a4jrtrGTkWjupCe7i33Z1LF48xYMWKHKCl6 AeHQ== X-Gm-Message-State: ANoB5pkKGRF/OZLhEtQ8bwPEhf+t0jw/7eOHB3a0Q4nfE3aF2hRRoCnF dcbKS8cCbKO8bshSSkZYWno= X-Received: by 2002:a05:600c:1d02:b0:3cf:d365:1ea3 with SMTP id l2-20020a05600c1d0200b003cfd3651ea3mr4788859wms.12.1670584499097; Fri, 09 Dec 2022 03:14:59 -0800 (PST) Received: from localhost ([217.131.81.52]) by smtp.gmail.com with UTF8SMTPSA id x4-20020a05600c2d0400b003d1e763ba46sm1461344wmf.10.2022.12.09.03.14.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 09 Dec 2022 03:14:58 -0800 (PST) From: Sasha Finkelstein To: 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 v4 1/4] dt-bindings: pwm: Add Apple PWM controller Date: Fri, 9 Dec 2022 14:13:10 +0300 Message-Id: <20221209111313.2701-2-fnkl.kernel@gmail.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20221209111313.2701-1-fnkl.kernel@gmail.com> References: <20221209111313.2701-1-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?1751734994780895249?= X-GMAIL-MSGID: =?utf-8?q?1751734994780895249?= 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 Dec 9 11:13:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein X-Patchwork-Id: 31726 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:f944:0:0:0:0:0 with SMTP id q4csp711621wrr; Fri, 9 Dec 2022 03:18:07 -0800 (PST) X-Google-Smtp-Source: AA0mqf5ilaexpUJILCtpILgSLy/Fs9ieNytkEuLP5x21tdxodH1zzvafur/D8GgKh9/uqQrPaEjX X-Received: by 2002:a17:90a:730a:b0:210:21f2:5e41 with SMTP id m10-20020a17090a730a00b0021021f25e41mr5246796pjk.1.1670584687654; Fri, 09 Dec 2022 03:18:07 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1670584687; cv=none; d=google.com; s=arc-20160816; b=sR3ROorQ+DYBJMfIA83TU1LHeYYDfXUgzPLPB26xoz4Tc+JWpQezwqhEGh2g7TcDX0 4B1JbhzS0FaiMB/OC1VnyGSlPUdmSi9nwB6AiPP2WzZatzQiBeGLXpqLln4/JrWPkvx8 MSBk7cj4Lz7FPD2Jw+QYlkRqxpcwh/s2gRzGOspXW0edFcYhmQRKaKqV4SrOklRfHFAV 8pIR5gDJAZMd0oC6ngotGVccZHdSWTRYX4TJC6Of3iYuxVt8mVQmipWwI+dtr1DG81eV NbeJUL44x8uu7nBFIV2GQnFH3Hv0DNIfjB5gbYRjJVHE+ohVDWobEmyeU3pYoZ+nMyZZ 84Yw== 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=ZXoAAIlGGmSpSwozdUzhwnxLFmPcWjZw/9cTYhXVqxI=; b=yMOKgbty2iUGteBdjuzFgZj17hJjJPew3F1D4QC3XtOL0N6UI5zQITCuaJiq+1PSGT 5G+K0tyIA2okwdMWoQ6dJzWXCe9W7HddT5sqviXeeCDVMyJxlByjv8m2/6Phyi1uxNdD dFxbT+97TQg0DrxuA/KrxuNPPd2Vr263Nn82VdUvrWtAQ7JpLmUbXrPWejBxlARwTdJb BN88fypECrB6O3BvyQ1M5Bo4m75wRdF7FjQ9KreFr1coqrbqJ6WGBZ4ud7yE5026MxJ0 iSkYAcMuhbg9zx7sIcFdAZdUXsaKDoYjgTzeSz773b0IlbfI4uf9oiBSFw6oelPzCy5M wsnA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=M5jxKsen; 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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@@ -43,3 +44,21 @@ &i2c2 { &i2c4 { status = "okay"; }; + +/ { + 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"; + }; + }; +}; + +&fpwm1 { + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/apple/t8103-j313.dts b/arch/arm64/boot/dts/apple/t8103-j313.dts index df741737b8e6..57e75e6ddf63 100644 --- a/arch/arm64/boot/dts/apple/t8103-j313.dts +++ b/arch/arm64/boot/dts/apple/t8103-j313.dts @@ -11,6 +11,7 @@ #include "t8103.dtsi" #include "t8103-jxxx.dtsi" +#include / { compatible = "apple,j313", "apple,t8103", "apple,arm-platform"; @@ -35,3 +36,21 @@ &pcie0_dart_2 { /delete-node/ &port01; /delete-node/ &port02; + +/ { + 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"; + }; + }; +}; + +&fpwm1 { + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi index 51a63b29d404..ccdb26ef6b22 100644 --- a/arch/arm64/boot/dts/apple/t8103.dtsi +++ b/arch/arm64/boot/dts/apple/t8103.dtsi @@ -191,6 +191,15 @@ 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 Dec 9 11:13:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sasha Finkelstein X-Patchwork-Id: 31727 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:f944:0:0:0:0:0 with SMTP id q4csp711708wrr; Fri, 9 Dec 2022 03:18:19 -0800 (PST) X-Google-Smtp-Source: AA0mqf7/ECpNJylz+p9PqTyXu3HZu2R8DsrlCgWcfJkNtgrRGpKfzuGdX0M6IqYzJB0lEsGDsSUO X-Received: by 2002:a05:6a20:be21:b0:a6:3b53:7f02 with SMTP id ge33-20020a056a20be2100b000a63b537f02mr5894348pzb.49.1670584699450; 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