linux-kernel - [PATCH 1/3] dt-bindings: gpu: mali-bifrost: Add compatible for Amlogic Meson S4

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Message-ID: <20260110200426.1461575-2-martin.blumenstingl@googlemail.com>
Date: Sat, 10 Jan 2026 21:04:24 +0100
From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To: linux-amlogic@...ts.infradead.org
Cc: linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	adrian.larumbe@...labora.com,
	steven.price@....com,
	boris.brezillon@...labora.com,
	robh@...nel.org,
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH 1/3] dt-bindings: gpu: mali-bifrost: Add compatible for Amlogic Meson S4

Add a compatible string for the Mali-G31 GPU in the Amlogic Meson S4
SoC. It has two clock inputs (GPU clock and a bus clock) as well as two
resets (main GPU reset line and a GPU ABP reset line).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
---
 .../bindings/gpu/arm,mali-bifrost.yaml        | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
index db49b8ff8c74..85fae7753004 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
@@ -19,6 +19,7 @@ properties:
           - enum:
               - allwinner,sun50i-h616-mali
               - amlogic,meson-g12a-mali
+              - amlogic,meson-s4-mali
               - mediatek,mt8183-mali
               - mediatek,mt8183b-mali
               - mediatek,mt8186-mali
@@ -143,6 +144,25 @@ allOf:
         power-domain-names: false
       required:
         - resets
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: amlogic,meson-s4-mali
+    then:
+      properties:
+        power-domains:
+          maxItems: 1
+        power-domain-names: false
+        clocks:
+          minItems: 2
+        clock-names:
+          items:
+            - const: gpu
+            - const: bus
+      required:
+        - resets
+        - clock-names
   - if:
       properties:
         compatible:
-- 
2.52.0