linux-kernel - [PATCH 8/8] dmaengine: mediatek: mtk-uart-apdma: Add support for Dimensity 9200

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Message-ID: <20251113122229.23998-9-angelogioacchino.delregno@collabora.com>
Date: Thu, 13 Nov 2025 13:22:29 +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 8/8] dmaengine: mediatek: mtk-uart-apdma: Add support for Dimensity 9200

Add a compatible string and match data for the APDMA IP version
found in the MediaTek Dimensity 9200 MT6985 SoC; this supports
extended addressing with up to 35 bits.

Other SoCs with this IP version also include the Dimensity 9400
MT6991 and Kompanio Ultra MT8196 (which don't need a specific
compatible in this driver and can reuse the mt6985 one).

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/dma/mediatek/mtk-uart-apdma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma/mediatek/mtk-uart-apdma.c b/drivers/dma/mediatek/mtk-uart-apdma.c
index dfcfc618bb8c..ead00636b048 100644
--- a/drivers/dma/mediatek/mtk-uart-apdma.c
+++ b/drivers/dma/mediatek/mtk-uart-apdma.c
@@ -471,6 +471,7 @@ static const struct of_device_id mtk_uart_apdma_match[] = {
 	{ .compatible = "mediatek,mt6577-uart-dma", .data = (void *)32 },
 	{ .compatible = "mediatek,mt6795-uart-dma", .data = (void *)33 },
 	{ .compatible = "mediatek,mt6835-uart-dma", .data = (void *)34 },
+	{ .compatible = "mediatek,mt6985-uart-dma", .data = (void *)35 },
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, mtk_uart_apdma_match);
-- 
2.51.1