linux-kernel - [PATCH 1/2] dt-bindings: mmc: mtk-sd: Document compatibles that need two register ranges

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Message-ID: <20241204092855.1365638-2-wenst@chromium.org>
Date: Wed,  4 Dec 2024 17:28:52 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Chaotian Jing <chaotian.jing@...iatek.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Wenbin Mei <wenbin.mei@...iatek.com>
Cc: Chen-Yu Tsai <wenst@...omium.org>,
	linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	devicetree@...r.kernel.org,
	Frank Wunderlich <frank-w@...lic-files.de>,
	Andy-ld Lu <andy-ld.lu@...iatek.com>
Subject: [PATCH 1/2] dt-bindings: mmc: mtk-sd: Document compatibles that need two register ranges

Besides the MT8183's MMC controller and all its compatible derivatives,
the recently added MT7986 and MT8196 also require two register ranges.
This is based on the actual device trees.

Properly enforce this in the binding.

Fixes: 4a8bd2b07d88 ("dt-bindings: mmc: mtk-sd: Add mt7988 SoC")
Fixes: 58927c9dc4ab ("dt-bindings: mmc: mtk-sd: Add support for MT8196")
Cc: Frank Wunderlich <frank-w@...lic-files.de>
Cc: Andy-ld Lu <andy-ld.lu@...iatek.com>
Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
---
 Documentation/devicetree/bindings/mmc/mtk-sd.yaml | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
index f86ebd81f5a5..9ea035928563 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml
@@ -235,11 +235,18 @@ allOf:
       properties:
         compatible:
           contains:
-            const: mediatek,mt8183-mmc
+            enum:
+              - mediatek,mt7986-mmc
+              - mediatek,mt8183-mmc
+              - mediatek,mt8196-mmc
     then:
       properties:
         reg:
           minItems: 2
+    else:
+      properties:
+        reg:
+          maxItems: 1
 
   - if:
       properties:
-- 
2.47.0.338.g60cca15819-goog