From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.218.51 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794733120; b=q75q0NwAktXn5f1m59h5WUO9d+RsiqQxpuZFMFY5iufxsZd+hmqUhArBXnl1i8LXJ9fU G7/aUk1ZgtBHo6XS6dGNYI/9spGGX0o2eX7L0p4sQ2h6ckEVKGshdYPaXTyazVqhAzZhU fYOKmLyJnGO6Kme/XDVF86EoZ6wz7XHNLDJeH2IBbrzq+TKLo+lSUlzD87d6AhCdzL8rq QS/SFQve3znVrbyGbiQOkaRuxbeq9UFKMjNFxKhIMY18GparTnPFSc/YUAGPVfuzPu0fx ARN5nnECnTWJfcLN6msQqZSLIkozhYbz1ZprTbCVtkIlpO9DiZzogmCfjiykFPyMCDQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794733120; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: 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=o49Az/X7nnRMbCTvuIgrTpIjxf+w39CY1NNO3CjBfDA=; b=lhnayD7nDiJDIbYCO5nbKoQT8oXlbsgghKx6OH0/dppgbia+QCxygF5/1zYQ6i0Q5Y4J 9KzCzUTaZOKL/fnf/g0qYJaB3uo48EuwW6lv1X3q06iuyWxLaCh7tpTNmxu6h5Hu7nyCv nApdIXxx1vYcLtWiVDty+btFDki0FX6o95AfUCIn6jocgk6qoxtMyRPda+S9u/8TAd2t5 iLTyXjoWTFJzfyiFJ21H2UJuxdzr/Hx4iiSiM6dQxsMuE7xL54/mVWLlBtlTLjpqFQI4a jp5eC1l4Iu+kV0QHfmcws/1Z+soO87ZBRos9iA8RoyE/G93JKgs5oAGhuD7G56Qz1Nw== 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=20260707 header.b=sPsUUrm6; arc=none smtp.remote-ip=209.85.218.51 Received: from mail-ej1-f51.google.com (mail-ej1-f51.google.com [209.85.218.51]) (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 481C1606A31A for ; Sun, 15 Nov 2026 08:58:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 481C1606A31A 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) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=sPsUUrm6 Received: by mail-ej1-f51.google.com with SMTP id a640c23a62f3a-c45551fa84eso507006666b.3 for ; Sun, 15 Nov 2026 00:58:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1794733119; x=1795337919; 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=o49Az/X7nnRMbCTvuIgrTpIjxf+w39CY1NNO3CjBfDA=; b=sPsUUrm635yddSdvTL7IG5cX2QAsw0XXrkPv6Pn/50HxLhpopLxnB9woE8SMJdkzPQ ZyVD8w+AHewcn3a1c93CucFI0Mq7zRsKJF3bldMV6CmQ7PmZYthmcnDhoE7sLD1fnnvs dIIsDTtaffiPVjVGvOEBHgEPuR21kH9N+mID9RNJnNk8Da0GEbDNj7iJDNF0bqtwyFAv BUVyH0xeSCizRcmsccXEMu4YUe057/v/rwPf3CF5G4ETita+V5S8Tubdlkd76sQwxDpD cQkaQ24toV68rPjAkXeG0zSt84eDQUSER3+3fu8KgxhsR7aNQpY8L/sJE1ymtU8my4g7 7MYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794733119; x=1795337919; 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=o49Az/X7nnRMbCTvuIgrTpIjxf+w39CY1NNO3CjBfDA=; b=HGBeu2LW1ZdJ5KS2sS/FUi96VDRn7mm7S9/QyyFJqlk/Y9Dt8CgSjGkSzKT+lSncYs DpEwueSF7+dtgm6MGMkcUU/2RoYYpNOpysyqxV9brX5qe/6tNdcG3ptQBhmSkWVrPjGx DqBt6ULOqyNM1Rs/V2Ky5CnsoIXzRdNfNw5mI8b+/XbmLwt052b3LCkBYUzcFmWeBohl m/QYlbvXHtyWHOoK+PHudqE8OVV9u0ARXcmGfaQU1sZw2KlLgbB/0/imwdy6nY45IE6g Y653nvldGFhfQ++SkZVU9DS0x22ez3V+oZRw0zOr25GLggSeMmvmIJ4Av+sz2s0Q3mM+ kh0w== X-Gm-Message-State: APuU4Z8ZsXY19QrPHFRHcjqQm3AOLKZqxhDNvhl5bEigtUbOf5grxHBY hkPaGSUN52j4wtLY7RKVsf4X9XTSdecH8BL4CORMcQH55USYk4yPmbop X-Gm-Gg: AYBFou3e7yp69wk5NrErjqc7xcvs9LTP9M4YKeexcoywRcfiicG1vmGLKfnV2ABtNyy DeTvp1hjTg58v1jQHRArI46WtpOITsovkMbKODbOFa4LL6APietTaA2s12TP744I2I5UYj/nqZB slSGNyCVjrHK9CYSs3b3y56AgYvH0gPtWzszmUPlUeh1WEUgxWADrOECPPHPj97lPJZfcED8qfM 3xqDZvZX6HRcAxLadR1TxmMKKjSlS8Z2yO81DHlzpjliqRZV/Nmlt3jnHcpZBHBUR8aLvn2uNDC NSy6kZixldjDymkFUy1tFpin6zkK3seTNklVswvoPCdu4Sexy25PyV0yhph/a6qsQqUTtnLxN/C O7untFQ26uOhndRbrf/kXAAwHmJZa28LtGuCjQyTN5xvxH8zSObQLRjXn04ieZrNpLyyrfCuO4a DypGkyfFz5j4VEH/4botv2vHXdc67Zp4iFSGJDnIa+Gay/n+f3EhvGYp2iSB3XLquFdgD+4l2GS DM/jD6Fsc1iPSegu72tz9LZX93GUJtZx3VY1aE6O64g9mEgfLe2Hj6uCr2xw0dUTE3X1O5bfN6S zenNiRR2VF+TuhBgttlKITj3DxN2xxm9fHttI5sIfTKKVW3NxL5+mV9+67LCedIASJOsXQRWRNX Zy4gMp3TjzQ== X-Received: by 2002:a17:907:9448:b0:c41:8e21:4d58 with SMTP id a640c23a62f3a-c5096199393mr579973966b.5.1794733118390; Sun, 15 Nov 2026 00:58:38 -0800 (PST) Received: from xeon ([188.163.112.62]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c5095a5c4b7sm287613266b.1.2026.11.15.00.58.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Nov 2026 00:58:37 -0800 (PST) From: Svyatoslav Ryhel To: Lee Jones , Pavel Machek , Griffin Kroah-Hartman , 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 v7 1/4] dt-bindings: leds: Document Skyworks AAT2870 Date: Sun, 15 Nov 2026 10:58:22 +0200 Message-ID: <20261115085826.89641-2-clamor95@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261115085826.89641-1-clamor95@gmail.com> References: <20261115085826.89641-1-clamor95@gmail.com> X-Mailing-List: linux-leds@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..3f3f3058af52d --- /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: 27900 + + 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