From patchwork Sat Jun 7 21:50:48 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukas Timmermann X-Patchwork-Id: 894991 Received: from mout-p-101.mailbox.org (mout-p-101.mailbox.org [80.241.56.151]) (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 A4E1F4C81; Sat, 7 Jun 2025 21:52:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.151 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749333129; cv=none; b=gGoAsiE95cupPCaEZnNCs698ZXBxJj24zBnOJs5tg99Mobj+9jescKzBX4aoKvdsSYQ7IqTjxeLgZFt84E66olC7kn66HJk0X528gOtel8FhQ+bJN4jLFjkG985vptMePtPUfw+C1fKtHRxKP0yxvEl3q6o2N+E9HXNUnXjLrsI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749333129; c=relaxed/simple; bh=fGJLpZTGuoP1Bq4eqMg0f8KYAcCO4ce6n6aYlF+YIow=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=A3Paw1/E1L93gLaXmo3FAVTYhOBrxEXviiCgiMDXlGhLTJwgdJMFGhVcIoxSfHh+hywiF/VrSJgkq+JspVOqDfiDCbsxcfoLEBTTakqUGe7ZfBpKa3qjPu214iV0rjnQ08kIETys/Z4xtEZ9qMB409XRbItbheQ8OOUjUcUW1tc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=timmermann.space; spf=pass smtp.mailfrom=timmermann.space; arc=none smtp.client-ip=80.241.56.151 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=timmermann.space Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=timmermann.space Received: from smtp2.mailbox.org (smtp2.mailbox.org [10.196.197.2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-101.mailbox.org (Postfix) with ESMTPS id 4bFBjb6FZ5z9sQ7; Sat, 7 Jun 2025 23:52:03 +0200 (CEST) From: Lukas Timmermann To: lee@kernel.org, pavel@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux@timmermann.space Subject: [PATCH v4 1/2] dt-bindings: leds: Add new as3668 support Date: Sat, 7 Jun 2025 23:50:48 +0200 Message-ID: <20250607215049.29259-2-linux@timmermann.space> In-Reply-To: <20250607215049.29259-1-linux@timmermann.space> References: <20250607215049.29259-1-linux@timmermann.space> Precedence: bulk X-Mailing-List: linux-leds@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This patch documents the device tree bindings for the OSRAM AS3668 LED driver. Note that the bindings are not entirely complete, as the GPIO/Audio Input pin is undocumented. The hardware used for testing this patch series does not allow modification, so this pin has been omitted. Signed-off-by: Lukas Timmermann --- .../devicetree/bindings/leds/ams,as3668.yaml | 74 +++++++++++++++++++ MAINTAINERS | 6 ++ 2 files changed, 80 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/ams,as3668.yaml diff --git a/Documentation/devicetree/bindings/leds/ams,as3668.yaml b/Documentation/devicetree/bindings/leds/ams,as3668.yaml new file mode 100644 index 000000000000..d1d73782da55 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/ams,as3668.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/ams,as3668.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Osram 4-channel i2c LED driver + +maintainers: + - Lukas Timmermann + +description: + This IC can drive up to four separate LEDs. + Having four channels suggests it could be used with a single RGBW LED. + +properties: + compatible: + const: ams,as3668 + + reg: + maxItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^led@[0-3]$": + type: object + $ref: common.yaml# + unevaluatedProperties: false + + properties: + reg: + maxItems: 1 + +required: + - compatible + - reg + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + led-controller@42 { + compatible = "ams,as3668"; + reg = <0x42>; + #address-cells = <1>; + #size-cells = <0>; + + led@0 { + reg = <0x0>; + function = LED_FUNCTION_STATUS; + color = ; + }; + + led@1 { + reg = <0x1>; + function = LED_FUNCTION_STATUS; + color = ; + }; + }; + }; + diff --git a/MAINTAINERS b/MAINTAINERS index c59316109e3f..091206c54c63 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3506,6 +3506,12 @@ L: linux-leds@vger.kernel.org S: Maintained F: drivers/leds/flash/leds-as3645a.c +AS3668 LED DRIVER +M: Lukas Timmermann +L: linux-leds@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/leds/ams,as3668.yaml + ASAHI KASEI AK7375 LENS VOICE COIL DRIVER M: Tianshu Qiu L: linux-media@vger.kernel.org