[PATCH v2 05/10] dt-bindings: clock: renesas,r8a78000-cpg: Add firmware property

Add a firmware property, for systems where SCMI must be used instead of
direct hardware access.

Signed-off-by: Geert Uytterhoeven <[email protected]>
---
v2:
  - Spin off from "dt-bindings: clock: Document Renesas R-Car X5H Clock
    Pulse Generator".
---
 .../devicetree/bindings/clock/renesas,r8a78000-cpg.yaml    | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/renesas,r8a78000-cpg.yaml b/Documentation/devicetree/bindings/clock/renesas,r8a78000-cpg.yaml
index 4e23bba334382346..fc499e7cf52e4f0c 100644
--- a/Documentation/devicetree/bindings/clock/renesas,r8a78000-cpg.yaml
+++ b/Documentation/devicetree/bindings/clock/renesas,r8a78000-cpg.yaml
@@ -35,6 +35,12 @@ properties:
       <dt-bindings/clock/renesas,r8a78000-cpg.h>.
     const: 1
 
+  firmware:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Reference to the SCMI firmware device node on systems where SCMI must be
+      used instead of direct hardware access.
+
 required:
   - compatible
   - reg
@@ -52,4 +58,5 @@ examples:
             clocks = <&extal_clk>, <&extalr_clk>;
             clock-names = "extal", "extalr";
             #clock-cells = <1>;
+            firmware = <&scmi>;
     };
-- 
2.43.0