1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
index e808215cb39e..6f0290c4e291 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml
@@ -50,6 +50,12 @@ description: |
       |        Command or data         |
       |<D7><D6><D5><D4><D3><D2><D1><D0>|
 
+  The standard defines one pixel format for type C: RGB111. The industry
+  however has decided to provide the type A/B interface pixel formats also on
+  the Type C interface and most common among these are RGB565 and RGB666.
+  The MIPI DCS command set_address_mode (36h) has one bit that controls RGB/BGR
+  order. This gives each supported RGB format a BGR variant.
+
   The panel resolution is specified using the panel-timing node properties
   hactive (width) and vactive (height). The other mandatory panel-timing
   properties should be set to zero except clock-frequency which can be
@@ -71,6 +77,9 @@ properties:
           - shineworld,lh133k
       - const: panel-mipi-dbi-spi
 
+  reg:
+    maxItems: 1
+
   write-only:
     type: boolean
     description:
@@ -90,6 +99,28 @@ properties:
 
   spi-3wire: true
 
+  format:
+    description: >
+      Pixel format in bit order as going on the wire:
+        * `x2r1g1b1r1g1b1` - RGB111, 2 pixels per byte
+        * `x2b1g1r1b1g1r1` - BGR111, 2 pixels per byte
+        * `x1r1g1b1x1r1g1b1` - RGB111, 2 pixels per byte
+        * `x1b1g1r1x1b1g1r1` - BGR111, 2 pixels per byte
+        * `r5g6b5` - RGB565, 2 bytes
+        * `b5g6r5` - BGR565, 2 bytes
+        * `r6x2g6x2b6x2` - RGB666, 3 bytes
+        * `b6x2g6x2r6x2` - BGR666, 3 bytes
+    enum:
+      - x2r1g1b1r1g1b1
+      - x2b1g1r1b1g1r1
+      - x1r1g1b1x1r1g1b1
+      - x1b1g1r1x1b1g1r1
+      - r5g6b5
+      - b5g6r5
+      - r6x2g6x2b6x2
+      - b6x2g6x2r6x2
+    default: r5g6b5
+
 required:
   - compatible
   - reg
@@ -116,6 +147,8 @@ examples:
             reset-gpios = <&gpio 25 GPIO_ACTIVE_HIGH>;
             write-only;
 
+            format = "r5g6b5";
+
             backlight = <&backlight>;
 
             width-mm = <35>;