[PATCH v13 4/6] dt-bindings: soc: mediatek: add gce-client-reg for MUTEX

[Moudy Ho <moudy.ho@mediatek.com>]

In order to allow modules with latency requirements such as MDP3
to set registers through CMDQ, add the relevant GCE property.

Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
---
 .../devicetree/bindings/soc/mediatek/mediatek,mutex.yaml  | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
index 4adc67cafd29..06106779d129 100644
--- a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
+++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
@@ -56,6 +56,14 @@ properties:
       include/dt-bindings/gce/<chip>-gce.h of each chips.
     $ref: /schemas/types.yaml#/definitions/phandle-array
 
+  mediatek,gce-client-reg:
+    description: The register of client driver can be configured by gce with
+      4 arguments defined in this property, such as phandle of gce, subsys id,
+      register offset and size. Each GCE subsys id is mapping to a client
+      defined in the header include/dt-bindings/gce/<chip>-gce.h.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    maxItems: 1
+
 required:
   - compatible
   - reg
-- 
2.18.0