From 4b9ce35ca5924c195df1a6bbccdc9aae4f5cb422 Mon Sep 17 00:00:00 2001 From: AngeloGioacchino Del Regno Date: Thu, 13 Nov 2025 13:22:22 +0100 Subject: [PATCH] dt-bindings: dma: mediatek,uart-dma: Allow MT6795 single compatible While it is true that this SoC is compatible with the MT6577 APDMA IP, that is valid only when the IP is used in 32-bits addressing mode, and, by the way there is no good reason to do so. Since the APDMA IP in MT6795 supports 33 bits addressing, this means that it is a newer revision compared to the one found in MT6577, hence only partially compatible with it. Allow nodes to specify "mediatek,mt6795-uart-dma" as their only compatible in the case of MT6795; this is done in lieu of the fact that there are other SoCs integrating the same version of this IP as MT6795, and those will eventually get their own compatible that expresses full compatibility with this SoC. Signed-off-by: AngeloGioacchino Del Regno Acked-by: Conor Dooley Link: https://patch.msgid.link/20251113122229.23998-2-angelogioacchino.delregno@collabora.com Signed-off-by: Vinod Koul --- Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml b/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml index dab468a88942d..10fc92b60de5f 100644 --- a/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml +++ b/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml @@ -28,6 +28,7 @@ properties: - const: mediatek,mt6577-uart-dma - enum: - mediatek,mt6577-uart-dma + - mediatek,mt6795-uart-dma reg: minItems: 1 -- 2.47.3