Message ID | 20180804111439.7455-3-peda@axentia.se (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Sat, 4 Aug 2018 11:14:58 +0000 From: Peter Rosin <peda@axentia.se> To: linux-kernel@vger.kernel.org Subject: [PATCH v7 2/3] dt-bindings: display: atmel: optional video-interface of endpoints Date: Sat, 4 Aug 2018 13:14:38 +0200 Message-Id: <20180804111439.7455-3-peda@axentia.se> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180804111439.7455-1-peda@axentia.se> References: <20180804111439.7455-1-peda@axentia.se> MIME-Version: 1.0 X-Originating-IP: [85.226.244.23] X-ClientProxiedBy: DB6PR0301CA0043.eurprd03.prod.outlook.com (2603:10a6:4:54::11) To AM5PR0201MB2451.eurprd02.prod.outlook.com (2603:10a6:203:35::8) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: dbc24798-23ab-4fb5-6320-08d5f9fb84a7 X-Microsoft-Antispam: BCL:0; PCL:0; RULEID:(7020095)(4652040)(7021125)(8989117)(4534165)(7022125)(4603075)(4627221)(201702281549075)(8990107)(7048125)(7024125)(7027125)(7028125)(7023125)(5600074)(711020)(2017052603328)(7153060)(7193020); SRVR:AM5PR0201MB2451; X-Microsoft-Exchange-Diagnostics: 1; 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drm/atmel-hlcdc: bus-width override support
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diff --git a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt index 82f2acb3d374..d29e1e425518 100644 --- a/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt +++ b/Documentation/devicetree/bindings/display/atmel/hlcdc-dc.txt @@ -15,6 +15,13 @@ Required children nodes: to external devices using the OF graph reprensentation (see ../graph.txt). At least one port node is required. +Optional properties in grandchild nodes: + Any endpoint grandchild node may specify a desired video interface + according to ../../media/video-interfaces.txt, specifically + - bus-width: recognized values are <12>, <16>, <18> and <24>, and + override any output mode selection heuristic, forcing "rgb444", + "rgb565", "rgb666" and "rgb888" respectively. + Example: hlcdc: hlcdc@f0030000 { @@ -50,3 +57,24 @@ Example: #pwm-cells = <3>; }; }; + +Example 2: With a video interface override to force rgb565; as above +but with these changes/additions: + + &hlcdc { + hlcdc-display-controller { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lcd_base &pinctrl_lcd_rgb565>; + + port@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + + hlcdc_panel_output: endpoint@0 { + reg = <0>; + bus-width = <16>; + }; + }; + }; + };