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[RFC,06/16] dt-bindings: display: armada: Document bus-width property

Message ID 20181218153742.1313125-7-lkundrak@v3.sk (mailing list archive)
State New, archived
Headers show
Series Armada DRM support for OLPC XO-1.75 laptop | expand

Commit Message

Lubomir Rintel Dec. 18, 2018, 3:37 p.m. UTC
This makes it possible to choose a different pixel format for the
endpoint. Modelled after what other LCD controllers use, including
marvell,pxa2xx-lcdc and atmel,hlcdc-display-controller and perhaps more.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
---
 .../bindings/display/armada/marvell-armada-drm.txt          | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/armada/marvell-armada-drm.txt b/Documentation/devicetree/bindings/display/armada/marvell-armada-drm.txt
index 555995ce5a9c..5122e737277b 100644
--- a/Documentation/devicetree/bindings/display/armada/marvell-armada-drm.txt
+++ b/Documentation/devicetree/bindings/display/armada/marvell-armada-drm.txt
@@ -47,6 +47,11 @@  Required child nodes:
 
 - port: video output port with endpoints, as described by
   Documentation/devicetree/bindings/graph.txt
+  The endpoints can optionally specify the following property:
+
+  - bus-width: recognized values are <12>, <16>, <18> and <24>, that
+    select "rgb444", "rgb565", "rgb666" or "rgb888" pixel format
+    respectively. Defaults to <24> if unspecified.
 
 Example:
 
@@ -59,6 +64,7 @@  Example:
 
 		lcd0_port: port {
 			lcd0_rgb_out: endpoint {
+				bus-width = <24>;
 				remote-endpoint = <&encoder_rgb_in>;
 			};
 		};