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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?ReJI2qZvcWMpJweaVcAa+g4zDWuu4V7CK731oodVe/S1jd5nZTUC0Qob6d4w?= =?us-ascii?Q?P/zPXvtlltrG7s7Qmu803f9rJo2Kw/rGMJR34g13g2pl4dsBXGZnjbCXARkC?= =?us-ascii?Q?dmqroWgIdrIYy56FIgImUjELCaI/trTluxCa3h9YTLCGuHQnv4XxEELvewi1?= =?us-ascii?Q?dkt1rmTrbntvY4kxdrmbrfi40UN751oO4zKGz2Wjcfv3m+osU9GzLubR01Yo?= =?us-ascii?Q?cH0IYhwbH9FKe7uSajhiXnfEMRii5NR9ZfNyZMhvk4wbYtKL6SP9ZtsiMF0N?= =?us-ascii?Q?hwtpyMupHJotiEZDXtF7pFUsEs/5ptDJf6FqsslVv3Mw55tKk9DWObqo5tsw?= =?us-ascii?Q?ChboLfBMj+QWKq2hEoQJ1cH/TgRZFh7sDSpsb3V9kLmcmdQsKyKckVE+Otch?= =?us-ascii?Q?os06ig3iVrjcDMfgLoz4aJm7RguTGjHBfbKYglK/qbwQ69c/5piclxkFxyRM?= =?us-ascii?Q?ldezG4LejnCGY8pSHtItYex5H9Hha0b+e0FWffjj2Qk9swpxBy0WQ1wOsLEJ?= =?us-ascii?Q?N0dpUGlAn1bU2DhZztDYNCOpVsNkcDZjWbiJrvv29GUrS/t8w4etcH0eVXss?= =?us-ascii?Q?oMU7HuuwjDCIsrqhEKQFxCMgVJVMU5asHg3dQBguukiqdFEqmOKpOHaVwsx2?= =?us-ascii?Q?YKG75+e3Dk2W9W7pyV6SEQqL0298NXfb2h7G7tzpMiZU3xiVocMbMY5ZEeYt?= =?us-ascii?Q?DmtFaafYxf/iCe+nl15W51FVd8Ygt2bWxLy2G0FR7pHuGApr1+netvvA5M49?= =?us-ascii?Q?GoSTpYFYkmPnfcn53R4Z8vKd36sMb+1APBAwX3LJBsnLGgl8Z9BJGFAPKrYb?= =?us-ascii?Q?G6B2DuSKJgsntgm/Yk9ARfoxCALmLv7UDpWNHYWRUthvdRi1RvuVwx1oVcph?= =?us-ascii?Q?Ga8W21EbiqGJZTKvft0L5Jf9kNEjUarVPZ0+CDfaVq9aav9x9GqNs+hw7dAH?= =?us-ascii?Q?AAjHdD2y65CPkHAvcllCA7Qe1JN60oosOUvVlKDLoYHvAYLwVVIlS31NYA93?= =?us-ascii?Q?bibyjVvWrYmr95/D4LxlniZcApHfGDUezc2jVQKcrrP7Jeuby2q4SOVIoHD9?= =?us-ascii?Q?wo3tdTSqzlMd4AlalLHkqMENXnhHHsz090JwJnWlwsK85AjSXcWRrK+0HI+8?= =?us-ascii?Q?cn6tlcEopf8PdIx7M9Qbqz1+jBplUHv3X6zIwIulke5hKm9KwAgSfLmSI070?= =?us-ascii?Q?5ivxASC89dwgNv/Fx4Wb7Rhxh6fvV21zPEOguizj8Q9bE/3jgyd1YmPG+83i?= =?us-ascii?Q?oX+X26vIuHDsb9n5ZRGD8OAWpzz30lJ/GiGQqmTXspur1uzRO45NLbV6PUwS?= =?us-ascii?Q?gAx70qRJWa/yX90yJL+7nlX7b4n08IrnQlc7XPyj/ckQqmoJ57ufGUjJuQ37?= =?us-ascii?Q?3HUlmKPftG8WtykGwxJhMyXLksER7XfKciEciey/rqIK2SwMC+zGDUBG1Mc0?= =?us-ascii?Q?Q275JQGbP6nw75lp9mj6ALGUx9V9hPQRimAccLz/lHr+6bZ3VT+JFadNAfwl?= =?us-ascii?Q?9MmUDJywL/zg4RJ73a2u7SCLc+FcHqQ9PE0KIaYjw6MA3hSd2srhkj8IE3Xi?= =?us-ascii?Q?2D/ZC5KIAPv+DqxYTvFMgj9tqVIqpyvUozUCtnWG?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: f5a2f203-d9a3-4a94-0bd4-08dd4b261abc X-MS-Exchange-CrossTenant-AuthSource: PAXPR04MB8459.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Feb 2025 05:28:38.8563 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ye7dag+RUjhGFtMVr2KjEg8Ux3XMZUTnY7WWrXcHTTKW7yC149W6YHrMvHucsQYfd88Pq8p0ePf9cEujOdcH8w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR04MB8115 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250211_212844_213566_C0A9BC76 X-CRM114-Status: GOOD ( 12.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Feb 11, 2025 at 04:59:53PM +0000, Sudeep Holla wrote: >On Tue, Jan 21, 2025 at 02:31:55PM +0000, Peng Fan wrote: >> >> It is the i.MX SCMI Protocol exports two RTCs using one protocol. >> >> Two RTC devices are created, but share one parent device. >> >> Do you mean each RTC device should have a unique parent device? >> > >Can you point where is this check for unique parent ? I am not so familiar >with RTC but I couldn't find myself with quick search. The RTC ops takes the rtc parent as input parameter https://elixir.bootlin.com/linux/v6.13.2/source/drivers/rtc/interface.c#L94 "err = rtc->ops->read_time(rtc->dev.parent, tm);" So in the rtc device driver, there is no way to know which rtc it is just from the parent device. However i.MX SCMI BBM exports two RTCs(id: 0, id: 1), so to make it work for current RTC framework, we could only pick one RTC and pass the id to BBM server side. I am not sure whether Alexandre wanna me to update the code following each parent could only support one RTC or else. Regards Peng > >-- >Regards, >Sudeep