From 1e80a0367bca7ffe3dfff41948474fe3c3ad3587 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Wed, 25 Mar 2026 00:19:28 +0800 Subject: [PATCH] arm64: dts: allwinner: sun50i-a64: add UART DMA channels All the UARTs support DMA and are hooked up to the DMA controller. Add the DMA channels for the UARTs Acked-by: Jernej Skrabec Link: https://patch.msgid.link/20260324161930.1602083-1-wens@kernel.org Signed-off-by: Chen-Yu Tsai --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index 0fecf0abb204..04a26762a19a 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -1000,6 +1000,8 @@ uart0: serial@1c28000 { reg-io-width = <4>; clocks = <&ccu CLK_BUS_UART0>; resets = <&ccu RST_BUS_UART0>; + dmas = <&dma 6>, <&dma 6>; + dma-names = "tx", "rx"; status = "disabled"; }; @@ -1011,6 +1013,8 @@ uart1: serial@1c28400 { reg-io-width = <4>; clocks = <&ccu CLK_BUS_UART1>; resets = <&ccu RST_BUS_UART1>; + dmas = <&dma 7>, <&dma 7>; + dma-names = "tx", "rx"; status = "disabled"; }; @@ -1022,6 +1026,8 @@ uart2: serial@1c28800 { reg-io-width = <4>; clocks = <&ccu CLK_BUS_UART2>; resets = <&ccu RST_BUS_UART2>; + dmas = <&dma 8>, <&dma 8>; + dma-names = "tx", "rx"; status = "disabled"; }; @@ -1033,6 +1039,8 @@ uart3: serial@1c28c00 { reg-io-width = <4>; clocks = <&ccu CLK_BUS_UART3>; resets = <&ccu RST_BUS_UART3>; + dmas = <&dma 9>, <&dma 9>; + dma-names = "tx", "rx"; status = "disabled"; }; @@ -1044,6 +1052,8 @@ uart4: serial@1c29000 { reg-io-width = <4>; clocks = <&ccu CLK_BUS_UART4>; resets = <&ccu RST_BUS_UART4>; + dmas = <&dma 10>, <&dma 10>; + dma-names = "tx", "rx"; status = "disabled"; };