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client-ip=195.60.68.100; helo=mail.axis.com; pr=C Received: from mail.axis.com (195.60.68.100) by AMS0EPF000001B0.mail.protection.outlook.com (10.167.16.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.181.6 via Frontend Transport; Wed, 1 Jul 2026 09:23:03 +0000 Received: from pc67007-2609 (10.4.0.13) by se-mail10w.axis.com (10.20.40.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.39; Wed, 1 Jul 2026 11:23:02 +0200 From: Waqar Hameed To: Sebastian Reichel CC: , , Subject: Re: [PATCH 01/10] power: supply: Add sysfs entry for system load control In-Reply-To: <3290b7eabb9dff19d77ff50d5ff1c4db4d37bdc1.1782746851.git.waqar.hameed@axis.com> (Waqar Hameed's message of "Mon, 29 Jun 2026 17:44:56 +0200") References: <3290b7eabb9dff19d77ff50d5ff1c4db4d37bdc1.1782746851.git.waqar.hameed@axis.com> User-Agent: a.out Date: Wed, 1 Jul 2026 11:23:02 +0200 Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-ClientProxiedBy: se-mail10w.axis.com (10.20.40.10) To se-mail10w.axis.com (10.20.40.10) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AMS0EPF000001B0:EE_|AS8PR02MB8589:EE_ X-MS-Office365-Filtering-Correlation-Id: 7f6b93e7-4e5a-4c69-3290-08ded7525a6e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|376014|1800799024|82310400026|36860700016|18002099003|22082099003|56012099006|4143699003|11063799006; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: xEz8lASGdrVkShE8ddMw5/fZoOQmJh3aPO6uko9SvuwJNVgRx5eguQKPwKmUXxBQUm2V3cO9jRpi2budjUDD0JutamgSTGNkpSkhhs3SfNOpt1nKe0m5jdpLtJ0V80vvaH6ZRlYTCWfPESbACQeJXrmiJjCh/WooEp/ME42//H0V+6WSSdExD99CkdZcgmdyh6+D4q3efnlWlJY2AAwdh7PGofMQEHnq6xjc6t7ZjkHjS5listTFj+bdFl5Nf1QGqxMNA/nEOZgHSipoCMw/jJ0hl2HYedtv3t5FRttwFbpKFgp+al6mWxRz+KRWTJeTY1i3JLORzZIEh51x3EprlmXATUaX61l+QJVfJE9o4r+NsjYd3qLbxscJ7YMo5fiA6Z/tw9DW5Neqk2B+be6Ly78+z8jMH3FMef0RsmdrSGvduUBVIx0FjKMa2mAz8kFd X-OriginatorOrg: axis.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Jul 2026 09:23:03.7258 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7f6b93e7-4e5a-4c69-3290-08ded7525a6e X-MS-Exchange-CrossTenant-Id: 78703d3c-b907-432f-b066-88f7af9ca3af X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=78703d3c-b907-432f-b066-88f7af9ca3af;Ip=[195.60.68.100];Helo=[mail.axis.com] X-MS-Exchange-CrossTenant-AuthSource: AMS0EPF000001B0.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS8PR02MB8589 On Mon, Jun 29, 2026 at 17:44 +0200 Waqar Hameed wrote: [...] > diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power > index 32697b926cc8c..2287b207311cd 100644 > --- a/Documentation/ABI/testing/sysfs-class-power > +++ b/Documentation/ABI/testing/sysfs-class-power > @@ -590,6 +590,30 @@ Description: > > Valid values: 0 - 100 (percent) > > +What: /sys/class/power_supply//load_switch > +Date: June 2026 > +Contact: linux-pm@vger.kernel.org > +Description: > + Devices can control the connection from power to system load. > + For example, with a field-effect transistor between a battery > + and the system load (BATFET). This entry controls such switch. > + The obvious states are "on" and "off", i.e. there is a > + connection or not, respectively. However, many devices can also > + enter special modes such as "low-power", "shipping" or "deep > + sleep". In these modes the switch is usually off and the > + quiescent current quite low. > + > + Access: Read, Write > + > + Valid values: > + > + ============= ================================== > + "On" (1) Power is connected to the load. > + "Off" (2) Power is disconnected to the load. > + "Standby" (3) Low-power mode. > + "Ship" (4) Ship mode. > + ============= ================================== `"Unknown" (0)` needs to be added here as well...