From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.208.41 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793100776; b=JAry599kXjrBWfyEiakY8hpiCerSnnNYvM9pe/eQIEduBjNabHrHBJ03V+wJ/ox8pV9a 2RYxrpWz+8Sohdz1tykKWdZ972lrwQKuI88lzDRxf0RB+DaFMMMktwlOkzuo3o3FGA9sg S7prU2stQ0iBalDGMkRTKT7kMzHDeMW5hS09hRIsIv+jE/yQk5mo+qWrsujD8JmkcGQHK Bbq14pzdr8z6Ukl39aVx1R3WIqhtlrRWdxbcw4ekji+Vs/lKT4lmwnWLf4/JqNeL6bTjF I3EpQsdfm9vARKzl1N1AnSunC2sSRm7zo+XlWwtxgMhnVzm7w5cozm1F11S6boCUrJQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793100776; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: From:To:Cc:Subject:Date:Message-ID:X-Mailer:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding; bh=bleP8syB94cG1bo4A3J3eIEtjKnK9hoV/0t42kw/sr4=; b=McNSXKJmesZNF/Ej6O9ZR57TEy7eiAk0mIPOyqM5yW7gdQYGt6gT3W7POq9wlcOp0AxH sNiJiCy2gZ/RNZpFttYJdKgo5SniZ6sC636SQC9NHWzGINUwBdbERovEEI6j2IrmDbqfX T36mmB331fsv2QWGeSR2S+A6V8NDctTKGoiRMptuMF9w7+2QQKC8aY3uBlk+RVXBjsTvN rCqOs+nuYM9YSSXHB4sdIrl4OZ4SAsW9G7mwUQBYoP/nu74qqbp22RO8ZyNSEyw2IVRwL 1PgYQuOCYdxNiZ5bIeV3b8mdTuiW3HlFo0dLFuSmYoJWmLNuJ/UyZq3R/dEwHPv8lXA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20251104 header.b="Oy/3KG5W"; arc=none smtp.remote-ip=209.85.208.41 Received: from mail-ed1-f41.google.com (mail-ed1-f41.google.com [209.85.208.41]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2860960A2622 for ; Tue, 27 Oct 2026 11:32:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 2860960A2622 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20251104 header.b=Oy/3KG5W Received: by mail-ed1-f41.google.com with SMTP id 4fb4d7f45d1cf-6b1aa4d71e7so4385030a12.0 for ; Tue, 27 Oct 2026 04:32:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1793100773; x=1793705573; darn=vger.kernel.org; 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:content-type; bh=bleP8syB94cG1bo4A3J3eIEtjKnK9hoV/0t42kw/sr4=; b=Oy/3KG5WqtvrHjqq1wuaW48vC3gsYJBtBXLHxWy7q1M/Haq/6EVU7ytgS6OBQjO5Eg XN5CqyDgsGYRw95TTKHft/iIcKiLv0VrIINjBHOyAGLbjAIMMYkeqRj9xOQV4rXcO8av lVGiZ6tA/pcY3MYlU4WJuBR6IcfK5EOweDwNsCX3XFQKerkj0E2DW1eUQKlWMxmCixPj yzAYQqJV+sq7fHRvtnzQMwZqI5qlOZZmpG0ERzkab5d2VG4pkSilpBqTk80qh5Ee6iIi 8hX6NNQm8aC8ShpfLPVblX6PHGe4Zk+jEu9XIWHHQu/FBKNMXa6+AFYNPrjKDZzOcsH2 Jf+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1793100773; x=1793705573; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=bleP8syB94cG1bo4A3J3eIEtjKnK9hoV/0t42kw/sr4=; b=1e9aQFbGWU0w80QKS1j1ps2y3Hg/YNjtZ4/7W+JQ9qhMKIV43paU3CtAkHeDEDTM/d ojyZ66QywG1eBSmyMgEDd0YeF2DPXob7j0vmWWGs7smB1CiE9caXGnhEBA40G2lIXain MmC2IEbr1/j5nmLNOg/14rU4GxeuK/Dkld3ItAZsIb4IIx/BkC5nw8ncUIlOGHXmL+ee OlRCXEiKGkcYqb6fLyVXqQVMaYm4GV8fe8hqGWGL7F8FY9ShHgXPJLv/vjoKH+AtTbGG MVKuuDvyqBCIbfH8NWB0re8xP/Uajt3bLXCjeqzvzJOu7aSpkWrHh4ZqeXQyqosa+IIX GDCg== X-Forwarded-Encrypted: i=1; AKwUvBzK29G266oQ73xJp+c7KpM8vIwUcJry+7ezLr8d7x8NCJ/YGEepaPWkplc9TGgL08DEYzfZK/wcPWEE@vger.kernel.org X-Gm-Message-State: AFq9FYJbSIumMMp1uWaBvAYFwgThDfJALyP0FqligWbfqj4fnELq3N9A yKbba/5sdnQFpSELF+MNpc3VrD1K2EcaqTsR/18dnvhnXVF+H2IORTMI X-Gm-Gg: AYBFou3kf4IH4N96DPs5Ao1s47bQpzUi9ceVe32bryABs/8zO2xfqYyvCF9wgNX6GR1 VEq3+H9GItmhtz+6pGYQn5P66PYWzTzqLT8IjUNdhdQRyY6z/Ek/GAtVdXHA6I58TLxoHagD19Y jnGrmKqC00US8Jv+YLO54xkbDh0Hy4RyfDoHNNBoMGlL7qtSG/01xRzgZ+bWSFbZGO25AkoaCil 0LKFyjZjUj6emNvFrRk1hPUA6HXRyf/lJjQclfbRauEYLZ+ph66tuy/5PXh2pXEigtNbQVUYhU6 Iri3deBj4O7hXABa3SKny8cJ/HfWtq5c+j60+4CrOpX+E/+WBd8yN3+eGH7H1c2CfM2Tjp4om59 Rmd2Ld0GNxmH0mevYF2PJshPOKjo1XE7CYDBYD/ZYzFvt3npj7J5C5ps/HhczJT+tYTWBxE9/30 ltWp1LPLOZjtuFNNhf7thFqmu2iu8Qn7Crm6WqWZMO7rnmvUD3hEXdQhBQSk5B4+784N0qM9duZ eYnRCTo3cfN4d+B75sD0tZ3uFam0y9T3Zg1BVSQnPQW97B8tm0wTvl17bJ7eDzWgk+9QrXMgNzB X-Received: by 2002:a17:907:6092:b0:c31:82aa:dd4c with SMTP id a640c23a62f3a-c46bde48accmr960707066b.24.1793100773381; Tue, 27 Oct 2026 04:32:53 -0700 (PDT) Received: from xeon ([188.163.112.62]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c46bd4ea608sm428920566b.21.2026.10.27.04.32.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Oct 2026 04:32:52 -0700 (PDT) From: Svyatoslav Ryhel To: Lee Jones , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Liam Girdwood , Mark Brown , Daniel Thompson , Jingoo Han , Svyatoslav Ryhel Cc: linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, mfd@lists.linux.dev, dri-devel@lists.freedesktop.org Subject: [PATCH v5 1/4] dt-bindings: leds: Document Skyworks AAT2870 Date: Tue, 27 Oct 2026 13:32:27 +0200 Message-ID: <20261027113230.47538-2-clamor95@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261027113230.47538-1-clamor95@gmail.com> References: <20261027113230.47538-1-clamor95@gmail.com> X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Document Skyworks AAT2870 LED Backlight Driver and Multiple LDO Lighting Management Unit. Reviewed-by: Daniel Thompson (RISCstar) # for backlight Reviewed-by: Rob Herring (Arm) Signed-off-by: Svyatoslav Ryhel --- .../bindings/leds/skyworks,aat2870.yaml | 124 ++++++++++++++++++ 1 file changed, 124 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/skyworks,aat2870.yaml diff --git a/Documentation/devicetree/bindings/leds/skyworks,aat2870.yaml b/Documentation/devicetree/bindings/leds/skyworks,aat2870.yaml new file mode 100644 index 0000000000000..0b4b8be9015bf --- /dev/null +++ b/Documentation/devicetree/bindings/leds/skyworks,aat2870.yaml @@ -0,0 +1,124 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/skyworks,aat2870.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AAT2870 LED Backlight Driver and Multiple LDO Lighting Management Unit + +maintainers: + - Svyatoslav Ryhel + +properties: + compatible: + const: skyworks,aat2870 + + reg: + maxItems: 1 + + enable-gpios: + description: GPIO connected to EN pin. + maxItems: 1 + + vin-supply: + description: Regulator providing power to the "IN" pin. + + backlight: + $ref: /schemas/leds/backlight/common.yaml# + unevaluatedProperties: false + + properties: + compatible: + const: skyworks,aat2870-backlight + + led-max-microamp: + minimum: 450 + maximum: 27900 + default: 450 + + skyworks,channels: + description: layout of active channels, where each bit represents + one of 8 channels. + $ref: /schemas/types.yaml#/definitions/uint8 + default: 0xff + + required: + - compatible + + regulators: + type: object + additionalProperties: false + + properties: + compatible: + const: skyworks,aat2870-regulator + + in-ldo-supply: + description: Phandle to parent supply of regulators populated under + regulators node. They all share same parent. + + patternProperties: + "^ldo-(a|b|c|d)$": + $ref: /schemas/regulator/regulator.yaml# + unevaluatedProperties: false + + required: + - compatible + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + led-controller@60 { + compatible = "skyworks,aat2870"; + reg = <0x60>; + + enable-gpios = <&gpio 139 GPIO_ACTIVE_HIGH>; + vin-supply = <&vdd_3v3_vbat>; + + backlight { + compatible = "skyworks,aat2870-backlight"; + + skyworks,channels = /bits/ 8 <0xff>; + led-max-microamp = <27900>; + }; + + regulators { + compatible = "skyworks,aat2870-regulator"; + + in-ldo-supply = <&vdd_3v3_vbat>; + + ldo-a { + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + }; + + ldo-b { + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; + + ldo-c { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + + ldo-d { + regulator-min-microvolt = <2700000>; + regulator-max-microvolt = <2800000>; + }; + }; + }; + }; -- 2.53.0