[PATCH 1/2] dt-bindings: arm: bcm: raspberrypi,bcm2835-firmware: Add missing properties

[Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>]

The raspberrypi,bcm2835-firmware devices requires a dma-ranges property,
and, as a result, also needs to specify #address-cells and #size-cells.
Those properties have been added to thebcm2835-rpi.dtsi in commits
be08d278eb09 ("ARM: dts: bcm283x: Add cells encoding format to firmware
bus") and 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's firmware bus DMA
limitations"), but the DT bindings haven't been updated, resulting in
validation errors:

arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dtb: firmware: '#address-cells', '#size-cells', 'dma-ranges', 'gpio' do not match any of the regexes: 'pinctrl-[0-9]+'
        from schema $id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#

Fix this by adding the properties to the bindings.

Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
 .../arm/bcm/raspberrypi,bcm2835-firmware.yaml    | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
index 39e3c248f5b7..dc38f2be7ad6 100644
--- a/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/raspberrypi,bcm2835-firmware.yaml
@@ -25,6 +25,14 @@ properties:
       - const: raspberrypi,bcm2835-firmware
       - const: simple-mfd
 
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  dma-ranges: true
+
   mboxes:
     maxItems: 1
 
@@ -81,6 +89,9 @@ properties:
 
 required:
   - compatible
+  - "#address-cells"
+  - "#size-cells"
+  - dma-ranges
   - mboxes
 
 additionalProperties: false
@@ -89,6 +100,11 @@ examples:
   - |
     firmware {
         compatible = "raspberrypi,bcm2835-firmware", "simple-mfd";
+
+        #address-cells = <1>;
+        #size-cells = <1>;
+        dma-ranges;
+
         mboxes = <&mailbox>;
 
         firmware_clocks: clocks {
-- 
Regards,

Laurent Pinchart