target/linux/bcm27xx/patches-5.15/950-0416-dt-bindings-display-vc4-Add-phandle-to-the-firmware.patch

   1 From 895b50c0855bf5c19525249c388a4b72bf7b0302 Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Wed, 23 Jun 2021 11:48:35 +0200
   4 Subject: [PATCH] dt-bindings: display: vc4: Add phandle to the
   5  firmware
   6
   7 The vc4 driver will need to tell the firmware that it takes over the
   8 display for the firmware to free its resources (lower the clock, free
   9 some memory, etc.)
  10
  11 Let's add an optional phandle to our firmware node.
  12
  13 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
  14 ---
  15  .../devicetree/bindings/display/brcm,bcm2835-vc4.yaml        | 5 +++++
  16  1 file changed, 5 insertions(+)
  17
  18 --- a/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
  19 +++ b/Documentation/devicetree/bindings/display/brcm,bcm2835-vc4.yaml
  20 @@ -21,6 +21,11 @@ properties:
  21        - brcm,bcm2835-vc4
  22        - brcm,cygnus-vc4
  23
  24 +  raspberrypi,firmware:
  25 +    $ref: /schemas/types.yaml#/definitions/phandle
  26 +    description: >
  27 +      Phandle to the mailbox node to communicate with the firmware.
  28 +
  29  required:
  30    - compatible
  31