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Tue, 12 May 2026 05:48:48 -0500 Received: from localhost (uda0133052.dhcp.ti.com [128.247.81.232]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 64CAmmI01283642; Tue, 12 May 2026 05:48:48 -0500 Date: Tue, 12 May 2026 05:48:48 -0500 From: Nishanth Menon To: Brian Masney CC: , Tero Kristo , Santosh Shilimkar , Michael Turquette , "Stephen Boyd" , , , , Michael Walle , Kevin Hilman , Randolph Sapp Subject: Re: [PATCH v2] clk: keystone: don't cache clock rate Message-ID: <20260512104848.4axgjeto6i7ejvli@retorted> References: <20260507-clk-sci-v2-1-38f59b48777a@ti.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000FCC1:EE_|PH8PR10MB6551:EE_ X-MS-Office365-Filtering-Correlation-Id: 5cfb56a9-e116-4db5-0cca-08deb0140cdc X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|7416014|82310400026|1800799024|376014|18002099003|22082099003|56012099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 3YYQKtOn5ujAgmOzWRd0z0Czkha4IkoM+i6P2ZBFDDlTzdYesYMrWsher40sjt+nv3gwe4TnUVVFm1M2AngRZKxEgBqQ2JfC2HWsQbKuT+VJ8Qr757EFKT4pODcBdqzJvpmIgvXQZvdavS8cltqNzsKJD/bc4dKfSyMOgEpfnIoWiS0Yfg2+qS7P9K3pgdPLGPSlDyavqX3BxQZfGVMAXKdjjSXa4QkBqbRIqNjqCZdgeNePH+mO/bAC4Q0+rdk8e66Frtn5oc/2qnOBeNdT1iwTzVwBXY2uFrA7qLOMANPj99JQHoqp0aUU1W7H3nOYs5T/8Z/RBlxGBNbp1Mf3dK4h09r2LE2E4eRnE9OGH+m67o20s8xD9CvXavgqj7mpMWb81LCUoJrz/w96tZann18XxG8CrbpIFnyMvGtuM/iGv5i5VLg9PUgwqQwpcY4p X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 May 2026 10:48:49.3868 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5cfb56a9-e116-4db5-0cca-08deb0140cdc X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.23.194];Helo=[lewvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000FCC1.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR10MB6551 On 10:36-20260511, Brian Masney wrote: > On Thu, May 07, 2026 at 11:09:34AM -0500, a-christidis@ti.com wrote: > > From: Michael Walle > > > > The TISCI firmware will return 0 if the clock or consumer is not > > enabled although there is a stored value in the firmware. IOW a call to > > set rate will work but at get rate will always return 0 if the clock is > > disabled. > > The clk framework will try to cache the clock rate when it's requested > > by a consumer. If the clock or consumer is not enabled at that point, > > the cached value is 0, which is wrong. Thus, disable the cache > > altogether. > > > > Signed-off-by: Michael Walle > > Reviewed-by: Kevin Hilman > > Reviewed-by: Randolph Sapp > > Reviewed-by: Nishanth Menon > > Signed-off-by: Antonios Christidis > > Reviewed-by: Brian Masney > Brian, Could you clarify if I need to take it via my tree to arnd or if this patch will go via the clk tree? -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D https://ti.com/opensource