[PATCH] dt-bindings: gpu: Allow Hi6220 Mali resets

Subsystems: drm drivers, drm drivers and misc gpu patches, open firmware and flattened device tree bindings, the rest

COLD19d IN LINUX-NEXT

Queued in linux-next as a1a1b1102fbd on 2026-09-25.

2 messages, 1 author, 19d ago · open the first message on its own page

[PATCH] dt-bindings: gpu: Allow Hi6220 Mali resets

From: "Rob Herring (Arm)" <robh@kernel.org>
Date: 2026-09-21 23:28:06

Hi6220 Mali nodes provide both ao_g3d and media_g3d resets. Require
those two resets and their names for the Hi6220 compatible. Other Mali
Utgard nodes have at most one reset and do not use reset names.

Assisted-by: LLM
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 .../bindings/gpu/arm,mali-utgard.yaml         | 25 ++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
index c8d0d9192d92..d68fe8c7d010 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-utgard.yaml
@@ -112,7 +112,13 @@ properties:
     maxItems: 1
 
   resets:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
+
+  reset-names:
+    items:
+      - const: ao_g3d
+      - const: media_g3d
 
   operating-points-v2: true
 
@@ -130,6 +136,23 @@ required:
 additionalProperties: false
 
 allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: hisilicon,hi6220-mali
+    then:
+      properties:
+        resets:
+          minItems: 2
+      required:
+        - reset-names
+    else:
+      properties:
+        resets:
+          maxItems: 1
+        reset-names: false
+
   - if:
       properties:
         compatible:
-- 
2.53.0

Re: [PATCH] dt-bindings: gpu: Allow Hi6220 Mali resets

From: "Rob Herring (Arm)" <robh@kernel.org>
Date: 2026-09-25 02:07:14

On Mon, 21 Sep 2026 18:27:58 -0500, Rob Herring (Arm) wrote:
Hi6220 Mali nodes provide both ao_g3d and media_g3d resets. Require
those two resets and their names for the Hi6220 compatible. Other Mali
Utgard nodes have at most one reset and do not use reset names.

Assisted-by: LLM
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 .../bindings/gpu/arm,mali-utgard.yaml         | 25 ++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)
Applied, thanks!
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