Describe 1..4 DSI lanes as supported. Internally, this bridge is
an ChipOne ICN6211 which loads its register configuration from a
dedicated storage and its I2C does not seem to be accessible. The
ICN6211 supports up to 4 DSI lanes, so this is a hard limit for
this bridge. The lane configuration is preconfigured in the bridge
for each of the WaveShare panels.

Signed-off-by: Marek Vasut <[email protected]>
---
Cc: Andrzej Hajda <[email protected]>
Cc: Conor Dooley <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Jernej Skrabec <[email protected]>
Cc: Jonas Karlman <[email protected]>
Cc: Joseph Guo <[email protected]>
Cc: Krzysztof Kozlowski <[email protected]>
Cc: Laurent Pinchart <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Neil Armstrong <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Robert Foss <[email protected]>
Cc: Simona Vetter <[email protected]>
Cc: Thomas Zimmermann <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
---
V2: No change
---
 .../devicetree/bindings/display/bridge/waveshare,dsi2dpi.yaml  | 3 +++
 1 file changed, 3 insertions(+)

diff --git 
a/Documentation/devicetree/bindings/display/bridge/waveshare,dsi2dpi.yaml 
b/Documentation/devicetree/bindings/display/bridge/waveshare,dsi2dpi.yaml
index 5e8498c8303dd..3820dd7e11af1 100644
--- a/Documentation/devicetree/bindings/display/bridge/waveshare,dsi2dpi.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/waveshare,dsi2dpi.yaml
@@ -40,9 +40,12 @@ properties:
             properties:
               data-lanes:
                 description: array of physical DSI data lane indexes.
+                minItems: 1
                 items:
                   - const: 1
                   - const: 2
+                  - const: 3
+                  - const: 4
 
             required:
               - data-lanes
-- 
2.51.0

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