[RFC PATCH 1/3] dt-bindings: display/msm/gpu: allow specifying MX domain A5xx

[Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>]

Some a5xx Adreno devices might need additional power domains to handle
voltage scaling. While we do not (yet) have support for CPR3 providing
voltage scaling, allow specifying MX domain to scale the memory cell
voltage.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/display/msm/gpu.yaml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
index d4191cca71fb..4dc1f6b2cdbf 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
@@ -78,7 +78,14 @@ properties:
     type: object
 
   power-domains:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
+
+  power-domain-names:
+    items:
+      - const: gx
+      - const: mx
+    minItems: 1
 
   zap-shader:
     type: object
-- 
2.39.2