[PATCH 2/6] dt-bindings: clock: qcom,videocc: add mmcx power domain

[Dmitry Baryshkov <dmitry.baryshkov@linaro.org>]

On sm8250 videocc requires MMCX power domain to be powered up before
clock controller's registers become available. For now sm8250 was using
external regulator driven by the power domain to describe this
relationship. Switch into specifying power-domain and required opp-state
directly.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../bindings/clock/qcom,videocc.yaml          | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,videocc.yaml b/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
index 567202942b88..22421173e1ca 100644
--- a/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,videocc.yaml
@@ -47,6 +47,16 @@ properties:
   reg:
     maxItems: 1
 
+  power-domains:
+    description:
+      A phandle and PM domain specifier for the MMCX power domain.
+    maxItems: 1
+
+  required-opps:
+    description:
+      Performance state to use for MMCX to enable register access.
+    maxItems: 1
+
 required:
   - compatible
   - reg
@@ -56,6 +66,15 @@ required:
   - '#reset-cells'
   - '#power-domain-cells'
 
+# Either both properties are present or both are absent
+dependencies:
+  power-domains:
+    required:
+      - required-opps
+  required-opps:
+    required:
+      - power-domains
+
 additionalProperties: false
 
 examples:
-- 
2.30.2