[PATCH 1/5] dt-bindings: display: vc4: Add optional phandle to firmware

[Maxime Ripard]

The firmware can free all the resources it was using to run the display
engine that won't be needed once the kernel has taken over.

Thus, we need a phandle to the firmware DT node to be able to send that
message when relevant.

Signed-off-by: Maxime Ripard <maxime at cerno.tech>
---
 .../devicetree/bindings/display/brcm,bcm2835-vc4.yaml        | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
index 49a5e041aa49..18de6912b833 100644
--- a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
+++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
@@ -21,6 +21,11 @@ properties:
       - brcm,bcm2835-vc4
       - brcm,cygnus-vc4
 
+  raspberrypi,firmware:
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+    description: >
+      Phandle to the firmware node
+
 required:
   - compatible
 
-- 
2.33.1