From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 3FCDC36604F; Sun, 10 May 2026 17:08:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778432886; cv=none; b=F3aspuW/iwQlh3ednmc6s0R4Zk7BhAmLG9+RpBXZVs/v72hLw5OTQRkQtozLFLvZNSl0JAgQN8pVUccgwfIVpfSp0uvrvXlNRkKFt7QxJ6PWp6xdOpUQk3XF2RUSTl4iPEAOlpOMXVcaV2H5/dpHXjgkFr8hbGkbRIH1kOL509Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778432886; c=relaxed/simple; bh=iKJneMRztolsBk2xzLjaNWEDzTv7OmrvEYBQz5gU7G8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Q8KU7Kf9S9Em6XxQdGnqGwgJ3Q12jl2QVef/F10xMzACICOCowAsttziHfOSyyrMJCOht7jI1xDyJ+wMffloNpi9gIbmYtfNiWh9gw9waIbMclHLW5AzJp6VPe5blA+LIXUD49fjNUsDGYQ9Lvcdc2GdMsHErBo0eIhHdxF0+uU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Z5Nm4NS4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Z5Nm4NS4" Received: by smtp.kernel.org (Postfix) with ESMTPS id DB2F2C2BCF7; Sun, 10 May 2026 17:08:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778432885; bh=iKJneMRztolsBk2xzLjaNWEDzTv7OmrvEYBQz5gU7G8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Z5Nm4NS47RlFa/yJvv8bOJgkOY6xa2uIP+Znmq2M2xggs+6Czb8XrGvAwsBse9yrA 0pYD0ZUi9UZU3Sw3fpXj7iDflCV6ecLRMWo7+H3cDbtUokxZ4b06nKmBsl1mrXxzkf pVNlEbjcTLKK/yzizOtHhLeoRYFZyekln7aUA9dOnlzHlQDPwKtlNlasqTB9sVrkRQ QgecNyiU4Tmh6EJEjyo1qWR+pKYfb+u4As78WYgzfVMFifbW4k3NIOOvEx4w3f+vzd QI8QRZXRVTCtxh6X/mx3fuAELMBWzo1MzDPJche2AI3wrOVDJVhVFcFR/cpT7Y/Iw2 GlatG+sknGuKg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id C12CFCD37B2; Sun, 10 May 2026 17:08:05 +0000 (UTC) From: Alexandre Hamamdjian via B4 Relay Date: Mon, 11 May 2026 00:08:02 +0700 Subject: [PATCH 1/2] dt-bindings: leds: backlight: add Silergy SY7758 Precedence: bulk X-Mailing-List: linux-leds@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260511-sy7758-v1-1-999a33081304@gmail.com> References: <20260511-sy7758-v1-0-999a33081304@gmail.com> In-Reply-To: <20260511-sy7758-v1-0-999a33081304@gmail.com> To: Philippe Simons , Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Helge Deller Cc: dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, Alexandre Hamamdjian X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1778432883; l=3003; i=azkali.limited@gmail.com; s=20260510; h=from:subject:message-id; bh=xa2gZ/M/2jO0IM2Gtg+AOrWfpBhxUQx0L8Qoyix2bVo=; b=DxgLwuNJfSbI2yI5k29rOgZdxFvMMfYx54mJ/frpVx8GFiAEsKty/2JyRUjzlvgNcuxzvaujX KmiCoAYPBz7B0UI9ooWk3FIrHaAHhAm9xZGCOdseABRJlrLblChR6FN X-Developer-Key: i=azkali.limited@gmail.com; a=ed25519; pk=I0Z0IdCdQJqNGX+FQUnXhrHg950u3cM6Xzz3YT6JOyQ= X-Endpoint-Received: by B4 Relay for azkali.limited@gmail.com/20260510 with auth_id=774 X-Original-From: Alexandre Hamamdjian Reply-To: azkali.limited@gmail.com From: Alexandre Hamamdjian The Silergy SY7758 is an I2C-controlled multi-channel LED backlight driver typically used to drive the edge-lit LED strings of LCD panels in handheld and embedded devices. Brightness is programmed as a 12-bit linear value through two 8-bit registers. Document the binding for the new compatible "silergy,sy7758" so it can be referenced by board device trees and the matching driver, and add a MAINTAINERS entry covering both the binding and the upcoming driver. Co-developed-by: Philippe Simons Signed-off-by: Philippe Simons Signed-off-by: Alexandre Hamamdjian --- .../bindings/leds/backlight/silergy,sy7758.yaml | 47 ++++++++++++++++++++++ MAINTAINERS | 7 ++++ 2 files changed, 54 insertions(+) diff --git a/Documentation/devicetree/bindings/leds/backlight/silergy,sy7758.yaml b/Documentation/devicetree/bindings/leds/backlight/silergy,sy7758.yaml new file mode 100644 index 000000000000..408029e19e2e --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/silergy,sy7758.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/silergy,sy7758.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Silergy SY7758 I2C LED backlight controller + +maintainers: + - Alexandre Hamamdjian + - Philippe Simons + +description: + The Silergy SY7758 is an I2C-controlled multi-channel LED backlight + driver typically used to drive the edge-lit LED strings of LCD panels + in handheld and embedded devices. Brightness is programmed as a 12-bit + linear value through two 8-bit registers. + +allOf: + - $ref: common.yaml# + +properties: + compatible: + const: silergy,sy7758 + + reg: + maxItems: 1 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + backlight@36 { + compatible = "silergy,sy7758"; + reg = <0x36>; + max-brightness = <4080>; + default-brightness = <1500>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index f877e5aaf2c7..9c132394ca41 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -24561,6 +24561,13 @@ S: Maintained F: drivers/input/touchscreen/silead.c F: drivers/platform/x86/touchscreen_dmi.c +SILERGY SY7758 BACKLIGHT DRIVER +M: Alexandre Hamamdjian +M: Philippe Simons +S: Maintained +F: Documentation/devicetree/bindings/leds/backlight/silergy,sy7758.yaml +F: drivers/video/backlight/sy7758.c + SILICON LABS WIRELESS DRIVERS (for WFxxx series) M: Jérôme Pouiller L: linux-wireless@vger.kernel.org -- 2.54.0