From:   Michael Riesch <michael.riesch@wolfvision.net>
To:     linux-media@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
        Jacopo Mondi <jacopo@jmondi.org>,
        Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>,
        Daniel Scally <djrscally@gmail.com>,
        =?UTF-8?q?Niklas=20S=C3=B6derlund?= 
        <niklas.soderlund+renesas@ragnatech.se>,
        Michael Riesch <michael.riesch@wolfvision.net>
Subject: [PATCH 1/2] dt-bindings: media: video-interfaces: add support for dual edge sampling
Date:   Fri, 14 Jan 2022 11:57:54 +0100
Message-Id: <20220114105755.730200-2-michael.riesch@wolfvision.net>
In-Reply-To: <20220114105755.730200-1-michael.riesch@wolfvision.net>
References: <20220114105755.730200-1-michael.riesch@wolfvision.net>
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?rY9D8Xz+cUEZNlvtRmusHmJG/fwxtU/fevWcaAqO9rZAbcmbv9BCQ1hA1U1j?=
 =?us-ascii?Q?X/S3dARnbbXF6iHMZbU+utvtJnP9tTmHWxru6CLyj0jCEBzpNNAvhY+l+CIX?=
 =?us-ascii?Q?AEQmTjbJk3VCgVfERITpqeO7tg4YAIdz1dMz+AxlxDi/P5ml7jQNtCvogv/9?=
 =?us-ascii?Q?sb+xD25BO4ujG7eCtF3wvBDG+mGb13h5dTLnhL2ctUINUbN0OhkZp1MKly7i?=
 =?us-ascii?Q?rAvMxo9e8lVbS+W5ZaIuA55xIUnW8o4E20Cgy0f/R0f24sybLuV1ux/RdRfn?=
 =?us-ascii?Q?uFSL54SD2sMd2AsQlcZXIhbrtiV+9qZ5tHr+skSn6VHaOHqQoHTjULYcu2kj?=
 =?us-ascii?Q?+G2GBbD1xy2F+rG1TEQAr/qP2jjHT3MbhJx53JrgxZZpgo2aFa8RBWhbRUwq?=
 =?us-ascii?Q?h8EmzcyhnSX4zBTWOzY3bC0pkKpFrLco2/40UAsuHMGGpumPbWlMsHkj4Jwo?=
 =?us-ascii?Q?RwgIrph4AG80/N6zHy3i0Cz76D5b+2oZ1csZ2+sVmoemzyFFzZmm5PkN2nRH?=
 =?us-ascii?Q?cIQxx/f9Ph0ToXqJcwhi5XUv9NPJcuy2LaGg8cFm0M+7m44toUC9O6MFWnNJ?=
 =?us-ascii?Q?jk6VGor6349rjRmqF83dkv248DKQGSOMa+xdvpWD9s/XG2c4wsKYMifiwa7f?=
 =?us-ascii?Q?guad46vuEQMo+omI4JefvjNk8+Eg3245E8j8ylt0WI71ULr+trpuCZA3Eyok?=
 =?us-ascii?Q?OrypjNzVA1GwaIfR+symP7QxRdr6LFx0F9dwAbtINsLpzmfxlrcV6aGYql6e?=
 =?us-ascii?Q?rO0Qbcb76uHFxxVbw16yhcaK1vGq6X2TpY6omyryJEDbEQPYc6lG03XvdrM0?=
 =?us-ascii?Q?N1329p4M3Ksq24wWS2GDw08nKABf4cBMRS7kcNZiFWk6mjHBE+o1n1ZWX8YR?=
 =?us-ascii?Q?1hGle4dLOOc9NxUs2TN66e8XZxM5ZbDBEYhMASLJXXIxvuKOngqyM9BKiEyE?=
 =?us-ascii?Q?jqHHoY/GW/YtM8UOREhxwLBbCo0em4K/w7AmdyJLNKi/+yzSyWFj/zUZ4FkM?=
 =?us-ascii?Q?aFAnR3r6iBDe+cNN/WnJH47ZlCPEFoai1MUww6skAj2xrgx4A9CMh1zzlcfi?=
 =?us-ascii?Q?6dSexQSc7xbhvR6M77PL7OTrDZiKyAgM58uCyKFBGEBRTma+rGE+TKr3HJGG?=
 =?us-ascii?Q?jivB1yWv5baSdLlStzEV78a97hgWlWlAlmy9cO4YoOcKz0hsOB/ea4yLcTHI?=
 =?us-ascii?Q?bzLA5eK+OJM61peVAExyZF691QAUqeaollcKyIxd/x6B1fnRI4ucdTD1sSgx?=
 =?us-ascii?Q?IWOryE5OXSfjcyBVEHdYk86K82ZP4o1qTNwa+gqWXPmwbr6AQ3dtd45uevY0?=
 =?us-ascii?Q?NEhamIcDezkyTBPcyGVUUHoMer1TkYTTc5BfeWMprLDFO72P1Ri5sES9Z0E6?=
 =?us-ascii?Q?XLfMuWOtBsTkh9d+grjWJ6G0iH8NqpRH+VkjQkiMs5Xad0Gg0nQ3lFU/RvVV?=
 =?us-ascii?Q?CgrtTVi6aV/HE593MFVPpFfqm1g7KO7WiDU4iFk86NTel5Jps8wpbc1JgnoL?=
 =?us-ascii?Q?YHkmQ298Dft3qugxLGfaIVn92DkTKQxWSE7LQz1iK29VPTBhANKf8X/FWqss?=
 =?us-ascii?Q?Sw5ObVtj+z0g9gkKp4Wr6bqkCD8BUNQ/sfeuujbjkY8E+CPwLSnFF5HKprxp?=
 =?us-ascii?Q?BdoBU3BnyJ8yGxx6V/0QPhtY9z1ShIYWjApMUW/84tVbfB8C2mGiWUqp4RVK?=
 =?us-ascii?Q?EdCywxs4sFy5q9tjyZriJW+4c0NQHsw9LJtAGNGLdo0JZFI71rvdSIuItgeY?=
 =?us-ascii?Q?YG7zHq1E1g=3D=3D?=
X-OriginatorOrg: wolfvision.net
X-MS-Exchange-CrossTenant-Network-Message-Id: 2d225679-5cd3-420a-df32-08d9d74cc038
X-MS-Exchange-CrossTenant-AuthSource: HE1PR0802MB2426.eurprd08.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jan 2022 10:58:09.4262
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: e94ec9da-9183-471e-83b3-51baa8eb804f
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: mKVBSY9btYs/gilFvKiJlJ4v0GnQLRlCcgozSAYbbRKYao8f09gsyf3xuYG0PkBAcyxKnYZPjD2gt2Wfj1rzHqqOsykZr05apm5zEmfdAz4=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: HE1PR0802MB2282
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Some devices support sampling of the parallel data at both edges of the
interface pixel clock in order to reduce the pixel clock by two.
Use the pclk-sample property to reflect this feature in the device tree.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
---
 .../devicetree/bindings/media/video-interfaces.yaml          | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/video-interfaces.yaml b/Documentation/devicetree/bindings/media/video-interfaces.yaml
index 4391dce2caee..b7f77a255778 100644
--- a/Documentation/devicetree/bindings/media/video-interfaces.yaml
+++ b/Documentation/devicetree/bindings/media/video-interfaces.yaml
@@ -144,9 +144,10 @@ properties:
 
   pclk-sample:
     $ref: /schemas/types.yaml#/definitions/uint32
-    enum: [ 0, 1 ]
+    enum: [ 0, 1, 2 ]
     description:
-      Sample data on rising (1) or falling (0) edge of the pixel clock signal.
+      Sample data on falling (0), rising (1) or both (2) edges of the pixel
+      clock signal.
 
   sync-on-green-active:
     $ref: /schemas/types.yaml#/definitions/uint32
-- 
2.30.2