linux-kernel - [PATCH 2/9] dt-bindings: gpu: mali-bifrost: Allow up to 5 power domains for MT8192

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Date:   Wed,  8 Feb 2023 11:37:02 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     airlied@...il.com
Cc:     daniel@...ll.ch, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, tomeu.vizoso@...labora.com,
        steven.price@....com, alyssa.rosenzweig@...labora.com,
        matthias.bgg@...il.com, robh@...nel.org,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Subject: [PATCH 2/9] dt-bindings: gpu: mali-bifrost: Allow up to 5 power domains for MT8192

MediaTek MT8192 (and similar) needs five power domains for the
Mali GPU and no sram-supply: change the binding to allow so.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../bindings/gpu/arm,mali-bifrost.yaml        | 34 +++++++++++++++++--
 1 file changed, 31 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
index 69212f3b1328..e7aba66ddb8f 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
@@ -61,7 +61,7 @@ properties:
 
   power-domains:
     minItems: 1
-    maxItems: 3
+    maxItems: 5
 
   resets:
     minItems: 1
@@ -141,6 +141,18 @@ allOf:
         - power-domains
         - resets
         - reset-names
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - mediatek,mt8183-mali
+                - mediatek,mt8192-mali
+    then:
+      properties:
+        power-domains:
+          maxItems: 1
   - if:
       properties:
         compatible:
@@ -161,10 +173,26 @@ allOf:
         - sram-supply
         - power-domains
         - power-domain-names
-    else:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt8192-mali
+    then:
       properties:
         power-domains:
-          maxItems: 1
+          minItems: 5
+        power-domain-names:
+          items:
+            - const: core0
+            - const: core1
+            - const: core2
+            - const: core3
+            - const: core4
+
+      required:
+        - power-domains
+        - power-domain-names
   - if:
       properties:
         compatible:
-- 
2.39.1