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Wysocki" , "Viresh Kumar" , "Danilo Krummrich" , "Alice Ryhl" , "Maarten Lankhorst" , "Maxime Ripard" , "Thomas Zimmermann" , "David Airlie" , "Simona Vetter" , "Drew Fustini" , "Guo Ren" , "Fu Wei" , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , "Michael Turquette" , "Stephen Boyd" , "Miguel Ojeda" , =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= , "Benno Lossin" , "Andreas Hindborg" , "Trevor Gross" , "Michal Wilczynski" , "Boqun Feng" , , , , , , , , "Boris Brezillon" , =?utf-8?q?Onur_=C3=96zkan?= , "Maurice" Subject: Re: [PATCH v5 3/4] rust: clk: add devres-managed clks Content-Transfer-Encoding: quoted-printable References: <20260706-clk-type-state-v5-0-67c5f326a16c@collabora.com> <20260706-clk-type-state-v5-3-67c5f326a16c@collabora.com> In-Reply-To: X-ClientProxiedBy: TYWPR01CA0051.jpnprd01.prod.outlook.com (2603:1096:400:17f::7) To CH2PR12MB3990.namprd12.prod.outlook.com (2603:10b6:610:28::18) Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PR12MB3990:EE_|SN7PR12MB7022:EE_ X-MS-Office365-Filtering-Correlation-Id: 34e472be-ef53-4c16-db1c-08def113696c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|1800799024|10070799003|23010399003|7416014|376014|22082099003|18002099003|4143699003|11063799006|10067099003|56012099006; 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The clock will automatically be >> disabled, unprepared and freed when the device is unbound from the bus >> without further intervention by the driver. > > Drivers could just put the enabled clock into their driver data. > > Given the general shift from devres to lifetime-scoped device resources, = do we > still have a need for this? This mimics what `Regulator` does; back then it was merged with quite some consensus [1]. IIRC the justification for having this was that it's a nice fire-and-forget interface for those cases where you don't even want the driver to have a way to touch the resource after acquiring it, and it also ensures that the resource is dropped at unbind time even if the driver data survives it for some reason (for instance, DRM open fds?). [1] https://lore.kernel.org/all/20250910-regulator-remove-dynamic-v3-2-07af= 4dfa97cc@collabora.com/