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Thu, 6 Nov 2025 07:46:53 -0600 From: Swamil Jain To: , , , , , , , , , , , , , , , CC: , , , , , , Subject: [PATCH v2 0/5] drm/tidss: Fixes data edge sampling on AM62X and AM62A Date: Thu, 6 Nov 2025 19:16:47 +0530 Message-ID: <20251106134652.883148-1-s-jain1@ti.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF0000009D:EE_|CO1PR10MB4673:EE_ X-MS-Office365-Filtering-Correlation-Id: c069da01-719e-4ac6-50d8-08de1d3af7e3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|7416014|376014|34020700016|36860700013|82310400026|921020|12100799066; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?wCl8+lkBPH0y1uiq992dyuiT+Bzxbv9015NRp4iCTVP5oLdZCalr5FPWL1jL?= =?us-ascii?Q?9kCYLEm9+7ZfSm9raSL+flPWYVwlQMhh13XX5sIO5kUMD0MIgKxANpsGKyCJ?= =?us-ascii?Q?BCbye9dy0u1dxjOIfyqg1PDMAo7v5fQItwju0WtFAg+m8ar6gTWxO7h+h9+I?= =?us-ascii?Q?mqlF4Ffpw/dLg9XI00ItKHq9ujIQKW1XGntE0HxSqBubicvghbwwoysYCuG4?= =?us-ascii?Q?hIPk0X5GFY/BDcdvvVknY0LuFlO8VQOfL1jkXLWGU/9m/kGyZv6Howov3clf?= =?us-ascii?Q?0xz4kl1GZL5n082dEbplQ6MehtU7Tmqmllt7KnPUc2HUKNHROnoUfdemBhlr?= =?us-ascii?Q?IGL/ivJCvFviS7pdHED2VudZKVttwAz3BB1hbniHfS77XSczPXFYQdlz6EsJ?= =?us-ascii?Q?/Tt5LMve5adYVAYr5RrJl8S4RO7o5dIttWSaRfeocGEVXbNBXylAOBGjs7Ft?= =?us-ascii?Q?myFdc5Oan9bvXqrtwGsjXDoorie3//gvdiP9Ra3qh8c8amGlYa4HQs6uZBds?= =?us-ascii?Q?DepxzL1z4+e04uFYPxlSuNeVLbauKGd7h3OP2kOZLbwRHDIUTLa2EMgUVROe?= =?us-ascii?Q?RV7onHfpYMm2Ll9kxOzazdK+eKvyGZxA+zzobtSNVpvgucwAnJlFxPXQe6eP?= =?us-ascii?Q?RGJbM/zB0dRc3csK21GDICarttAQur0ZVf65KbUvHsBiVfdl8AnCingFMSIJ?= =?us-ascii?Q?xt9ouynaO4lmSXsdGgEfH1UgbqFZ5vQTaTooTOwJt0E1Qf0rQAQNAyPsykr/?= =?us-ascii?Q?8KI9eUrf7ELdr+33CO1Ujd9CL8C0fKe2QeE+3VFVmqFa6fQQJkmJatGTg0w9?= =?us-ascii?Q?sWM6tR+EnkYEO5odUKaqM4jVR5Qz+uyjz3nM/xGeCg1LBnjHdEfglYCchDH8?= =?us-ascii?Q?/qacDK2J1m4dtt6uhLqs1qiMcdPlVOx+JahcvYHJ0RQsfurOTDwwgTqbcmcs?= =?us-ascii?Q?a5WmzwMy751BA6XKmV0GCSdIUDgvSilA4Qp/LhKJ4jU9+5bOkBNhHr1x8WYC?= =?us-ascii?Q?5KmfSE+rssD1ZPL2Jut8o9XAUtDRMG1vY9qBQ6KhrU3uW1mDpBV/SwLvyjcA?= =?us-ascii?Q?+itHTaKmN1VPMWvG5g9McFVCvFzbHhhtObkYeKqA9UKQhDlA0/w8bRX5Tor8?= =?us-ascii?Q?xfpIdt9GNWIc24JLTL5WRZYooQqahAS7/GgMDn/k6iDaXzq96uMFayckdi5O?= =?us-ascii?Q?N7cUR++u+0kJaf5PqNppwQupEu+2PXvKMaoCqj0hDVFjGt67BnVnS2f4OX2o?= =?us-ascii?Q?aLg1fBtx6sPF/hPk1SGgzeM8bpkyrQyUmWYh+vG/pMofnCOiUN6RBo3Iubep?= =?us-ascii?Q?g98pZIjawoYrr2CEgAnbe4dDIv3IIvfQYyT8IpsJMBPLaf4kdVyHlP+t3rAu?= =?us-ascii?Q?jAPJ81E3Dy8WfLN58OLnWtoxi0TB+ilGC5fQKeZibXugrhCyqhIAgLWGz/py?= =?us-ascii?Q?XlAOU69u4ptKJubkQN7faui6dH++kBoySXzO0vQGVntRNuo4cBcLWgxMbreV?= =?us-ascii?Q?P3ubHBzix11I0je2wWXvHPejvvgTpUFFvtVjQjsBf8qzzSY2fmBnYGaG3PVD?= =?us-ascii?Q?29OmgMrbop+1hKmIYeJIbyrgdhtItDDiCMWqrxZo?= X-Forefront-Antispam-Report: CIP:198.47.21.194;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:flwvzet200.ext.ti.com;PTR:ErrorRetry;CAT:NONE;SFS:(13230040)(1800799024)(7416014)(376014)(34020700016)(36860700013)(82310400026)(921020)(12100799066);DIR:OUT;SFP:1501; X-OriginatorOrg: ti.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Nov 2025 13:47:03.6716 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c069da01-719e-4ac6-50d8-08de1d3af7e3 X-MS-Exchange-CrossTenant-Id: e5b49634-450b-4709-8abb-1e2b19b982b7 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=e5b49634-450b-4709-8abb-1e2b19b982b7;Ip=[198.47.21.194];Helo=[flwvzet200.ext.ti.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF0000009D.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO1PR10MB4673 Currently the driver only configure the data edge sampling partially. AM62X, AM62A and AM62P require it to be configured in two distinct registers: one in tidss and one in the Control MMR registers. Introduce a new dt property to link the proper syscon node from the main device registers into the tidss driver. The series targets to fix the issue for AM62X and AM62A, later will add the changes required for AM62P after DSS support gets upstreamed. Fixes: ad2ac9dc9426 ("drm/tidss: Add support for AM625 DSS") Fixes: 5cc5ea7b6d7b ("drm/tidss: Add support for AM62A7 DSS") --- Cc: stable@vger.kernel.org Signed-off-by: Louis Chauvet Signed-off-by: Swamil Jain --- Louis Chauvet (4): dt-bindings: display: ti,am65x-dss: Add clk property for data edge synchronization dt-bindings: mfd: syscon: Add ti,am625-dss-clk-ctrl arm64: dts: ti: k3-am62-main: Add tidss clk-ctrl property drm/tidss: Fix sampling edge configuration Swamil Jain (1): arm64: dts: ti: k3-am62a-main: Add tidss clk-ctrl property .../bindings/display/ti/ti,am65x-dss.yaml | 6 ++++++ Documentation/devicetree/bindings/mfd/syscon.yaml | 3 ++- arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 6 ++++++ arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 7 +++++++ drivers/gpu/drm/tidss/tidss_dispc.c | 14 ++++++++++++++ 5 files changed, 35 insertions(+), 1 deletion(-)