From patchwork Sat Jan 20 21:26:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Duje_Mihanovi=C4=87?= X-Patchwork-Id: 764350 Received: from mx.skole.hr (mx1.hosting.skole.hr [161.53.165.185]) (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 4023213AC5; Sat, 20 Jan 2024 21:27:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=161.53.165.185 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705786050; cv=none; b=Y72Rhx3YF9u0urf6JYc3XyQX2FdnS1Tl2Zy4X4Z7frd45NajeBg4vsZh5tPYSngBgeLVIKhHlREHkWHYZZi2j6i3qISX6oikWMh1pxi4oXEVuCuKCdhj6Fo+m2N6AJdH+urvANFDw1ZUnZS3Pm8eVYUlefwsagktowTC4JDesxU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705786050; c=relaxed/simple; bh=0YufyoxCcDHdvrCe1DCC6ao7YtZtJoU6/jXb8S7jhuc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=q15qi/1wDteFCLtPDX4RdvOzyIbTR1e955OkcbR+NVyTDcqh4cKkMyoe29mXTVoPI9zlPb+vgl30b+IMoFIQwEh6HqnhvG6u1bmAhOOkwid4JAFxmbi+pZP3D3WB2ab2R2oQ3y7yvuzXdUV8FFNBHceVXlLLTUlTq2HNRW4wjR8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=skole.hr; spf=pass smtp.mailfrom=skole.hr; arc=none smtp.client-ip=161.53.165.185 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=skole.hr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=skole.hr Received: from mx1.hosting.skole.hr (localhost.localdomain [127.0.0.1]) by mx.skole.hr (mx.skole.hr) with ESMTP id E3C86858F0; Sat, 20 Jan 2024 22:27:25 +0100 (CET) From: =?utf-8?q?Duje_Mihanovi=C4=87?= Date: Sat, 20 Jan 2024 22:26:44 +0100 Subject: [PATCH v3 2/3] dt-bindings: backlight: add Kinetic KTD2801 binding Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240120-ktd2801-v3-2-fe2cbafffb21@skole.hr> References: <20240120-ktd2801-v3-0-fe2cbafffb21@skole.hr> In-Reply-To: <20240120-ktd2801-v3-0-fe2cbafffb21@skole.hr> To: Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Helge Deller , Linus Walleij Cc: Karel Balej , ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, =?utf-8?q?Duje_?= =?utf-8?q?Mihanovi=C4=87?= , Krzysztof Kozlowski X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=1941; i=duje.mihanovic@skole.hr; h=from:subject:message-id; bh=0YufyoxCcDHdvrCe1DCC6ao7YtZtJoU6/jXb8S7jhuc=; b=owEBbQKS/ZANAwAIAZoRnrBCLZbhAcsmYgBlrDqXqInMjvZktvxohk5B0k55MzTvucMMNR2Lo 8DWsVo19G6JAjMEAAEIAB0WIQRT351NnD/hEPs2LXiaEZ6wQi2W4QUCZaw6lwAKCRCaEZ6wQi2W 4Q0sEACV6w/f0w85VgGM24DwIZSA1u8Hx8P0fyaIcGANDETP17vxlpI59loasLgO+pO3Wv5WjlR i5VKT/+9rFHtbJIPtsinVLc73ycxAQcqhAfgMYG8E8jKwA1wo1IUkUt0EHvc0fa9sevmymhGcc+ uHZn/rQQ/Yn16+HISMpGpNQhFCTzwA6M4rcQ0xTh3407pC7kKeUL0izDiQ+YTfGdq9Ny24NbQla 0KKdMqDjFjMUEaQBoeCCW0yl9jWTS8fcHt9ch2ttFNO8COX8Pey9SxuwPWgp4aOZSFx4yqv25e0 j7WjC8g/f05T4b5Km5oxCmxihOV/UDzcwyVHDLkv9RQjPkMtDqbKNvXZTz8BgMt6lnzAp4XKECl 63IxwLaQuezDaSnWNZu3VfzQQO/rmVitAXYTWx7ccOX3/tZTP69FeLCb5l8jyKIqceiuZd9/9wp i8K0tGdnvdZzabs/ghGr2D78JqYxM56B3zLztqfi/NHgkQRdZ07leP9I1dGG2cMaCfddkrFYlZs 6HYUgFFSix+XgHv4tIiOZ51RAEgRySOFBqEPXYlcJarcofZHQGmQgcwqN+62S7yqajt5emMvW2f 2GQKmjP4yO1D4P9XDGFhkRGSya46wwC5gFSGdJ0VIon3sKgU6CBftJuoz1E13r6ISyxxDc+v/Xp 2C/9mBdY451iNwQ== X-Developer-Key: i=duje.mihanovic@skole.hr; a=openpgp; fpr=53DF9D4D9C3FE110FB362D789A119EB0422D96E1 KTD2801 is a LED backlight driver IC found in samsung,coreprimevelte. The brightness can be set using PWM or the ExpressWire protocol. Add a DT binding for the KTD2801. Reviewed-by: Krzysztof Kozlowski Reviewed-by: Linus Walleij Signed-off-by: Duje Mihanović --- .../bindings/leds/backlight/kinetic,ktd2801.yaml | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd2801.yaml b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd2801.yaml new file mode 100644 index 000000000000..b005065e0f48 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/kinetic,ktd2801.yaml @@ -0,0 +1,46 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/kinetic,ktd2801.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Kinetic Technologies KTD2801 one-wire backlight + +maintainers: + - Duje Mihanović + +description: | + The Kinetic Technologies KTD2801 is a LED backlight driver controlled + by a single GPIO line. The driver can be controlled with a PWM signal + or by pulsing the GPIO line to set the backlight level. This is called + "ExpressWire". + +allOf: + - $ref: common.yaml# + +properties: + compatible: + const: kinetic,ktd2801 + + ctrl-gpios: + maxItems: 1 + + default-brightness: true + max-brightness: true + +required: + - compatible + - ctrl-gpios + +additionalProperties: false + +examples: + - | + #include + + backlight { + compatible = "kinetic,ktd2801"; + ctrl-gpios = <&gpio 97 GPIO_ACTIVE_HIGH>; + max-brightness = <210>; + default-brightness = <100>; + };