From nobody Mon Oct 6 08:26:52 2025 Received: from DUZPR83CU001.outbound.protection.outlook.com (mail-northeuropeazon11012039.outbound.protection.outlook.com [52.101.66.39]) (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 553B55A79B; Thu, 24 Jul 2025 08:02:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.66.39 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753344155; cv=fail; b=fxJAgPDACckyYItLKG+UH91CACNn6WLwI3F6YuWzED4VEYjXADQovYpmtjy2o/5RLWe1wZlAVMegkKioPrmBicxTfrZPTStMaMKSW8+/Fs3g1S5sIJb3TPflerEKNZ5ARy9dObztX4nun2ILq+cSTqDiSS9j4aE8+/HHYW2h0FQ= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753344155; c=relaxed/simple; bh=QOAAYSI5jZnKRVp15Pw1+ekIfEBOEX7FIgHj/b/YkUg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=R2jV6vVWx8EaNrExLvI2Q/0N97+SxMuvSBB205C195Qw/ojr4QXhBtPtcSDZzqjtcq9R0pM4lTVVUjOXKH/SJ2gIfzBMnmhpBYn5lhsH7rsbJFqxFgBzFyAGJsDLxJPjgSq9P+DhFXplwh0vhRuW6Pf72BLNxX2noKOYnjSjhNY= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=leica-geosystems.com.cn; spf=fail smtp.mailfrom=leica-geosystems.com.cn; dkim=pass (1024-bit key) header.d=leica-geosystems.com.cn header.i=@leica-geosystems.com.cn header.b=vKmjfdIQ; arc=fail smtp.client-ip=52.101.66.39 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=leica-geosystems.com.cn Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=leica-geosystems.com.cn Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=leica-geosystems.com.cn header.i=@leica-geosystems.com.cn header.b="vKmjfdIQ" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=kfemODVc8nIITJ1x0b1I5zVVS9AVc+0uKx2EeWTxpzDGEwbaTboFsLI8EaN7EGnrSfzXi1SqJ3x2N192s0LHm7iKgi+g7G9yHPgaC8q0r+LUe8NsKCzprCnMVziK5w19RQM2ffFpOg/XYC0YbAM9oz5XSVcQ7TrQFayFSOguREAN+sFg01aPpV0Q1CJBNMDO+xzAZhLRiBkNMWIagKDwu09AVKWk2uAEeRc2Fe20TOGCcBSYvVU2iID0DaQK2lCVS3Jf+fvOzgjk7YijlQaN+L8WUaL2vviXADurwWrboj68hupMfIZuG0BnODnWTei7HMQcBFEIy/jAmznq1W4Uiw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=pT6Dj1SdT9H2YRcyDh2+gtcz+R5pfwvvnL0vv5sFj8E=; b=w7esWEFIkW0BHo9bmDwl+jiYjS7dRV+2V99HwkfEKeHwyOaC/hc80qjLg+PqJTN3LohzIM+eTAq3kXgMpeS1FFIl7S6P4wwfg1NLoRLuGce4iQjIZp2Mj25w+NF82ambORdvYExZNbvE5V25M4PdMeBCgz+hbGB7GWImMNaRryzFXc2qJ40uYVFoSgwIyYzPyhkxE3A7VFRkwMRqHnjL8xH/99CAQgwURiEn0FLAFeRx4JhW/o4XRa7Gy4c7w/hzSjgO0M3x8Ir6R6ym26cvPYuzvf6ZsMA1q/3Ge96G7xFdcRfWVJTTZwi44uIEVEacA5wjoy8auHHMNLwPE4BWNg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 193.8.40.94) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=leica-geosystems.com.cn; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=leica-geosystems.com.cn; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=leica-geosystems.com.cn; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=pT6Dj1SdT9H2YRcyDh2+gtcz+R5pfwvvnL0vv5sFj8E=; b=vKmjfdIQtVjQpCKbg+FU7TgDtzTbCWOZcE1y9rflOVNnVaH6flF5Sgo3f/BpBZqr/oIOK3H5gDChYh3Xt1LknQCbliSQGA7knofWg5d21XuOfGnkzNsffUcnS7M/2W9TkjH4G4qSOTElpaqFXyxPL7a2URDdsgBOOqHC64rNc0I= Received: from AS4P250CA0025.EURP250.PROD.OUTLOOK.COM (2603:10a6:20b:5e3::15) by AS8PR06MB7461.eurprd06.prod.outlook.com (2603:10a6:20b:31d::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8943.29; Thu, 24 Jul 2025 08:02:30 +0000 Received: from AM2PEPF0001C70B.eurprd05.prod.outlook.com (2603:10a6:20b:5e3:cafe::eb) by AS4P250CA0025.outlook.office365.com (2603:10a6:20b:5e3::15) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8964.22 via Frontend Transport; Thu, 24 Jul 2025 08:02:30 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 193.8.40.94) smtp.mailfrom=leica-geosystems.com.cn; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=leica-geosystems.com.cn; Received-SPF: Pass (protection.outlook.com: domain of leica-geosystems.com.cn designates 193.8.40.94 as permitted sender) receiver=protection.outlook.com; client-ip=193.8.40.94; helo=hexagon.com; pr=C Received: from hexagon.com (193.8.40.94) by AM2PEPF0001C70B.mail.protection.outlook.com (10.167.16.199) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8964.20 via Frontend Transport; Thu, 24 Jul 2025 08:02:29 +0000 Received: from GEO-W5CG2253GWB.lgs-net.com ([10.132.33.42]) by hexagon.com with Microsoft SMTPSVC(10.0.17763.1697); Thu, 24 Jul 2025 10:02:28 +0200 From: LI Qingwu To: lee@kernel.org, pavel@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Qing-wu.Li@leica-geosystems.com.cn Cc: Krzysztof Kozlowski Subject: [PATCH V8 1/2] dt-bindings: leds: pwm: Add enable-gpios property Date: Thu, 24 Jul 2025 16:02:20 +0800 Message-ID: <20250724080221.7562-2-Qing-wu.Li@leica-geosystems.com.cn> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250724080221.7562-1-Qing-wu.Li@leica-geosystems.com.cn> References: <20250724080221.7562-1-Qing-wu.Li@leica-geosystems.com.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-OriginalArrivalTime: 24 Jul 2025 08:02:29.0082 (UTC) FILETIME=[4CFE9BA0:01DBFC71] X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AM2PEPF0001C70B:EE_|AS8PR06MB7461:EE_ X-MS-Office365-Filtering-Correlation-Id: beb198c8-2b94-431e-da0d-08ddca886fc0 X-SET-LOWER-SCL-SCANNER: YES X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|36860700013|82310400026|376014; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?94OzVNtYpNSfcFjQX76WgDvlL1liLQyRazW+vIwz6urlhSHFCmfaYy3YtChe?= =?us-ascii?Q?4fEUdugsryGsa0t4aDMHjzysee20+bDCREHu7MERXshfY3NJl6mM7hpZN0os?= =?us-ascii?Q?0FxKi+L488ZXNroG5awOyEQb4rBUmxmIKkx6/oC6x7W/UWD3KQzV73uwWEP9?= =?us-ascii?Q?QCKAicI4PSpU6hiZ21tEP6A8DjaJWSvJYrwXFZTBt41lefYV3ukFrroyppeU?= =?us-ascii?Q?PfBuswlYAYboM4zHr7TzzS1VewfNYzQEMOqBd6jn0MsdUdvDaX8rUxb2zFLo?= =?us-ascii?Q?ie0Mva2KYf9a47X85lD61bTvY7Mq11prWudpBS24BQEGgmwG5aCREgXCZy4Z?= =?us-ascii?Q?o3xw04P9vNuLLdQYXXjLOuEv1bTsKLON+nrFepdA8nnC6LfsIXLSvJWVdDvN?= =?us-ascii?Q?s/tYNddEpQ3ZWUhBtzKS/ALlkUlXYmZRC2D7QJcaYU8GhTnuvF9u0xRRPgsr?= =?us-ascii?Q?OepkFJJ2RMV+aZgza6tvZ+DeYP5IA9L9a2a1ni1R+Jaqvaro+zqeqbuIf3Wx?= =?us-ascii?Q?vBV/iDjzH2jai7LssTP0/M/kirK8pi/zsIWPh1sUQD/TouQ9UvmGEMFT1xMy?= =?us-ascii?Q?JFp7y+GNrywEQLwWq9XPijl+bZ4VtFhYRK1ohwSGB5LnAFQ94GZFaoIWHit3?= =?us-ascii?Q?2Vy+k7+5usfG4RRabRH+1kR4UI0VoUin9WOY8w+6yOf9emaM/K0Vu7pmWLnI?= =?us-ascii?Q?ej8KQ3oYx+4K1Smv9YKrx+EO3TOsJ+WHt6eHQWU+7q4ej54Q15KGESlc2mkj?= =?us-ascii?Q?Sh8eEYW/ID3QEvEKBT6vh35ArFzUysGtxpRdeuIk/aYECGjMoQ1GIpLwvBpu?= =?us-ascii?Q?EXy8jGJk268RaZqie07/+trc2StGYJRswR6l9h+syc0zOHKOfpn0EE2uQ7kn?= =?us-ascii?Q?XAKj3SOYSsGi2EEUO0qm0H9VQUDmpsWQ9pWin1Nu+x0qz02v3OQjZofX67XJ?= =?us-ascii?Q?XK8fFMKa4CHg829p2zABgl62GToT32NHoHMzdI7dF0q+3DKz8mlgk634tVH0?= =?us-ascii?Q?eJpv5W1ZVZ1fAiPbHnAVa3MUqdr59Elosw7nNh3CjzZWzDl3c7ykOSSeHcjW?= =?us-ascii?Q?bxo61o4noPIypIcgU4xM+EUjbEu8bLgjjVl+kwdfaxMIZePwkWLEs234nyw/?= =?us-ascii?Q?YwG3+OtMYMxljmHkSPhiRgf/GhbI29SJ0AJKlDhFfVqyUC0v8L97px47Rb2W?= =?us-ascii?Q?kKztgtBcUvJoBQI8arLkQRxnirvT8DtS2zK9AKalQccm19dOEgNaR7U91gS/?= =?us-ascii?Q?P/w6DIZO2Bm5eM9Qjr1hRdElXNVbvbp98my9RxrKQfE3R9Gq+IBWvT9SykA6?= =?us-ascii?Q?qWJtxF+XBR3wOHsdlVJn6fNSfDP+FZzkvulWhUeb7gsfMqofo2oQbAGeGxRd?= =?us-ascii?Q?iwAfw/dTuwZ3kayjntAGcRrr30GpFZOPbBNKrwpMcQvncfilBzdZVtvjqBXZ?= =?us-ascii?Q?lIWJsJFHoTM/U+tbtK3Al3aJCMKkLh0TZ/IfZSFDJIUO6VGOT+BEY+8qMpVd?= =?us-ascii?Q?9j6YcpbAw4J4780G8y9sfw+1q+BsidtjrqHy?= X-Forefront-Antispam-Report: CIP:193.8.40.94;CTRY:CH;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:hexagon.com;PTR:ahersrvdom50.leica-geosystems.com;CAT:NONE;SFS:(13230040)(1800799024)(36860700013)(82310400026)(376014);DIR:OUT;SFP:1101; X-OriginatorOrg: leica-geosystems.com.cn X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jul 2025 08:02:29.4751 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: beb198c8-2b94-431e-da0d-08ddca886fc0 X-MS-Exchange-CrossTenant-Id: 1b16ab3e-b8f6-4fe3-9f3e-2db7fe549f6a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=1b16ab3e-b8f6-4fe3-9f3e-2db7fe549f6a;Ip=[193.8.40.94];Helo=[hexagon.com] X-MS-Exchange-CrossTenant-AuthSource: AM2PEPF0001C70B.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR06MB7461 Content-Type: text/plain; charset="utf-8" Some PWM LED driver chips like TPS92380 and LT3743 require a separate enable signal in addition to PWM control. Add this property to allow device trees to specify such GPIO, which will be controlled automatically by the driver based on the LED brightness state. Reviewed-by: Krzysztof Kozlowski Signed-off-by: LI Qingwu --- Documentation/devicetree/bindings/leds/leds-pwm.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/leds/leds-pwm.yaml b/Documen= tation/devicetree/bindings/leds/leds-pwm.yaml index 61b97e8bc36d0..6c4fcefbe25f9 100644 --- a/Documentation/devicetree/bindings/leds/leds-pwm.yaml +++ b/Documentation/devicetree/bindings/leds/leds-pwm.yaml @@ -40,6 +40,13 @@ patternProperties: initialization. If the option is not set then max brightness is = used. $ref: /schemas/types.yaml#/definitions/uint32 =20 + enable-gpios: + description: + GPIO for LED hardware enable control. Set active when brightness= is + non-zero and inactive when brightness is zero. + The GPIO default state follows the "default-state" property. + maxItems: 1 + required: - pwms - max-brightness --=20 2.43.0