From nobody Sat Jul 25 20:06:02 2026 Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 497133EE1F2 for ; Tue, 14 Jul 2026 07:35:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784014554; cv=none; b=Vf7oNzv17lxOMveM3Wh1TbYg/hHqSFQHq6KyUtfsXgteRFtzKkEByUqoMq0DsArf/pw7QPWEd84BtN3/3UA+X8cX1ECBUVreiu10qM811qGhTBc0w2Xi1Sxc5FuqZGWs2LOpnkG8EbEURutcT9lezMc+5dDDEQzygAtMRAT7+Sg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784014554; c=relaxed/simple; bh=BvI5f/SGs3rOnIaf937RzhNNvfMs8aUchvXoAXE8+Rg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=kBiGbcTGdXQqyfXG6SN6PjXyeHYyfIdbDngpPG41gvSmOFK0KNajXt8gzKw5CXswVYF70JdX5jCmWsixamQH09FzndVeU5x9Jxe1a1GTY4wds6fy12kiu5e98rBX7RdJbO/RlTF0FsoVyajVUSzZoaodB2KOcqTHUMkEawxseKw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1wjXg5-0001R0-Hm; Tue, 14 Jul 2026 09:35:41 +0200 From: Jonas Rebmann Date: Tue, 14 Jul 2026 09:35:03 +0200 Subject: [PATCH v4] dt-bindings: leds: Add default-intensity property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260714-multicolor-default-v4-1-c2335b32bc39@pengutronix.de> X-B4-Tracking: v=1; b=H4sIAKbmVWoC/33NQQ6DIBCF4as0rEszgErSVe/RdCEwKI0VA2psj Hcv2o1JTZd/MvO9mUQMDiO5nmYScHTR+TZFdj4RXZdthdSZ1IQDL6CAjL6GpnfaNz5Qg7ZMRRl DoVAbhLwk6bELaN20offHt+Ognqj7VVovahd7H97b6sjWu78DI6NAFUhlbSZYLuStw7Ya+uBbN 10MknVl5HsnP3R4ctCA5JIZWyg4dMTOEXDoCMooz3TOJOhSaPPjLMvyASQDbW5bAQAA X-Change-ID: 20260604-multicolor-default-11e3becde05a To: Lee Jones , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jacek Anaszewski , Sven Schwermer Cc: Pavel Machek , linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, Stefan Wahren , Conor Dooley , Jonas Rebmann X-Mailer: b4 0.16-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=3441; i=jre@pengutronix.de; h=from:subject:message-id; bh=BvI5f/SGs3rOnIaf937RzhNNvfMs8aUchvXoAXE8+Rg=; b=owGbwMvMwCV2ZcYT3onnbjcwnlZLYsgKfXbGNpVL5iz793N/NPxfZc8RD66JvevHkXT5yvyMI O02G3/mjlIWBjEuBlkxRZZYNTkFIWP/62aVdrEwc1iZQIYwcHEKwEQOLWL4K5tz9771zUue6S1a qzMfCrz96PH7+PU3qz5wvL1dLxJzNpSRYdI51seijm9LZ27v6LD8b30/kWdFxDeey7v1FJ2m7Lh gxwEA X-Developer-Key: i=jre@pengutronix.de; a=openpgp; fpr=0B7B750D5D3CD21B3B130DE8B61515E135CD49B5 X-SA-Exim-Connect-IP: 2a0a:edc0:0:1101:1d::ac X-SA-Exim-Mail-From: jre@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Document the default-intensity property to set a default color on multicolor LEDs. Update pwm-multicolor to support it and update the example to turn the LED red on boot. Acked-by: Conor Dooley Signed-off-by: Jonas Rebmann Reviewed-by: Stefan Wahren --- Changes in v4: - Move default to leds-pwm-multicolor.yaml as other drivers have other defaults (Thanks, Conor) - Move definition of default-intensity property next to default-brightness - Slighly improve description - Link to v3: https://patch.msgid.link/20260630-multicolor-default-v3-1-24c= 5170ca3cd@pengutronix.de Changes in v3: - make default-intensity property description more generic and less redundant (Thanks, Conor) - Drop applied patch that introduces the property (Thanks, Lee) - Link to v2: https://patch.msgid.link/20260605-multicolor-default-v2-0-ed0= 7271df6b0@pengutronix.de Changes in v2: - dt-bindings: Use correct property name in example - dt-bindings: Add missing word in property description - Link to v1: https://patch.msgid.link/20260604-multicolor-default-v1-0-b07= bff431537@pengutronix.de --- Documentation/devicetree/bindings/leds/common.yaml | 9 ++++++= +++ Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml | 5 +++++ 2 files changed, 14 insertions(+) diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documenta= tion/devicetree/bindings/leds/common.yaml index f4e44b33f56d..3e6f913070b0 100644 --- a/Documentation/devicetree/bindings/leds/common.yaml +++ b/Documentation/devicetree/bindings/leds/common.yaml @@ -179,6 +179,15 @@ properties: initialization. If the option is not set then max brightness is used. $ref: /schemas/types.yaml#/definitions/uint32 =20 + default-intensity: + description: + The initial intensity of the LED color component. As the intensity of + each sub-LED is multiplied by the overall brightness, without this + property on a sub-LED, it may effectively be initialized at a bright= ness + of 0 regardless of its linux,default-trigger and default-brightness + properties. + $ref: /schemas/types.yaml#/definitions/uint32 + panic-indicator: description: This property specifies that the LED should be used, if at all possi= ble, diff --git a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yam= l b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml index a31a202afe5c..08e28c5f08a8 100644 --- a/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml +++ b/Documentation/devicetree/bindings/leds/leds-pwm-multicolor.yaml @@ -45,6 +45,9 @@ properties: =20 color: true =20 + default-intensity: + default: 0 + required: - pwms - color @@ -63,12 +66,14 @@ examples: =20 multi-led { color =3D ; + linux,default-trigger =3D "default-on"; function =3D LED_FUNCTION_INDICATOR; max-brightness =3D <65535>; =20 led-red { pwms =3D <&pwm1 0 1000000>; color =3D ; + default-intensity =3D <65535>; }; =20 led-green { --- base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482 change-id: 20260604-multicolor-default-11e3becde05a Best regards, -- =20 Jonas Rebmann