linux-kernel - [PATCH 3/8] dt-bindings: dma: mediatek,uart-dma: Support all SoC generations

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Message-ID: <20251113122229.23998-4-angelogioacchino.delregno@collabora.com>
Date: Thu, 13 Nov 2025 13:22:24 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: dmaengine@...r.kernel.org
Cc: sean.wang@...iatek.com,
	vkoul@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	long.cheng@...iatek.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	kernel@...labora.com
Subject: [PATCH 3/8] dt-bindings: dma: mediatek,uart-dma: Support all SoC generations

Add support for the APDMA IP found in all of the SoC generations
that are currently supported upstream; this includes:
 - MT8173, MT8183, fully compatible with MT6577 (32-bits)
 - MT7988, MT8186, MT8188, MT8192, MT8195 and MT6835 (34-bits)
 - MT6991, MT8196 and MT6985 (35-bits)

...where:
 - MT6835 is the first SoC where the AP_DMA IP supports 34-bits
   addressing; and
 - MT6985 is the first SoC where the AP_DMA IP supports 35-bits
   addressing.

While at it, also add myself in the maintainers list.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../bindings/dma/mediatek,uart-dma.yaml        | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml b/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml
index 4d927726df93..3708518fe7fc 100644
--- a/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/mediatek,uart-dma.yaml
@@ -7,6 +7,7 @@ $schema: http://devicetree.org/meta-schemas/core.yaml#
 title: MediaTek UART APDMA controller
 
 maintainers:
+  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
   - Long Cheng <long.cheng@...iatek.com>
 
 description: |
@@ -23,12 +24,29 @@ properties:
           - enum:
               - mediatek,mt2712-uart-dma
               - mediatek,mt6795-uart-dma
+              - mediatek,mt8173-uart-dma
+              - mediatek,mt8183-uart-dma
               - mediatek,mt8365-uart-dma
               - mediatek,mt8516-uart-dma
           - const: mediatek,mt6577-uart-dma
+      - items:
+          - enum:
+              - mediatek,mt7988-uart-dma
+              - mediatek,mt8186-uart-dma
+              - mediatek,mt8188-uart-dma
+              - mediatek,mt8192-uart-dma
+              - mediatek,mt8195-uart-dma
+          - const: mediatek,mt6835-uart-dma
+      - items:
+          - enum:
+              - mediatek,mt6991-uart-dma
+              - mediatek,mt8196-uart-dma
+          - const: mediatek,mt6985-uart-dma
       - enum:
           - mediatek,mt6577-uart-dma
           - mediatek,mt6795-uart-dma
+          - mediatek,mt6835-uart-dma
+          - mediatek,mt6985-uart-dma
 
   reg:
     minItems: 1
-- 
2.51.1