linux-kernel - [PATCH 3/6] dt-bindings: gpu: powervr-rogue: Add MediaTek MT8173 GPU

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Message-ID: <20240530083513.4135052-4-wenst@chromium.org>
Date: Thu, 30 May 2024 16:35:02 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Frank Binns <frank.binns@...tec.com>,
	Matt Coster <matt.coster@...tec.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Stephen Boyd <sboyd@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Chen-Yu Tsai <wenst@...omium.org>,
	David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>,
	dri-devel@...ts.freedesktop.org,
	linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 3/6] dt-bindings: gpu: powervr-rogue: Add MediaTek MT8173 GPU

The MediaTek MT8173 comes with a PowerVR Rogue GX6250, which is one
of the Series6XT GPUs, another sub-family of the Rogue family.

This was part of the very first few versions of the PowerVR submission,
but was later dropped. The compatible string has been updated to follow
the new naming scheme adopted for the AXE series.

In a previous iteration of the PowerVR binding submission [1], the
number of clocks required for the 6XT family was mentioned to be
always 3. This is also reflected here.

[1] https://lore.kernel.org/dri-devel/6eeccb26e09aad67fb30ffcd523c793a43c79c2a.camel@imgtec.com/

Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
---
 .../bindings/gpu/img,powervr-rogue.yaml       | 24 +++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
index 256e252f8087..48aa205b66b4 100644
--- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
+++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
@@ -12,10 +12,17 @@ maintainers:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - ti,am62-gpu
-      - const: img,img-axe # IMG AXE GPU model/revision is fully discoverable
+    oneOf:
+      - items:
+          - enum:
+              - mediatek,mt8173-gpu
+          # PowerVR 6XT GPU model/revision is fully discoverable
+          - const: img,powervr-6xt
+      - items:
+          - enum:
+              - ti,am62-gpu
+          # IMG AXE GPU model/revision is fully discoverable
+          - const: img,img-axe
 
   reg:
     maxItems: 1
@@ -56,6 +63,15 @@ allOf:
       properties:
         clocks:
           maxItems: 1
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: img,powervr-6xt
+    then:
+      properties:
+        clocks:
+          minItems: 3
 
 examples:
   - |
-- 
2.45.1.288.g0e0cd299f1-goog