From ab6fcb58aedf7df1d146b47d5fedd844a7c346e2 Mon Sep 17 00:00:00 2001 From: Chukun Pan Date: Tue, 1 Apr 2025 18:00:20 +0800 Subject: [PATCH] arm64: dts: rockchip: Add UART DMA support for RK3528 The UART ports on RK3528 have DMA capability, describe it. Flow control is optional, so dma-names are not added. Signed-off-by: Chukun Pan Link: https://lore.kernel.org/r/20250401100020.944658-4-amadeus@jmu.edu.cn Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/rk3528.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi index 9c60bb414638..826f9be0be19 100644 --- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi @@ -375,6 +375,7 @@ clocks = <&cru SCLK_UART0>, <&cru PCLK_UART0>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 8>, <&dmac 9>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -386,6 +387,7 @@ clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 10>, <&dmac 11>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -397,6 +399,7 @@ clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 12>, <&dmac 13>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -408,6 +411,7 @@ clocks = <&cru SCLK_UART3>, <&cru PCLK_UART3>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 14>, <&dmac 15>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -419,6 +423,7 @@ clocks = <&cru SCLK_UART4>, <&cru PCLK_UART4>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 16>, <&dmac 17>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -430,6 +435,7 @@ clocks = <&cru SCLK_UART5>, <&cru PCLK_UART5>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 18>, <&dmac 19>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -441,6 +447,7 @@ clocks = <&cru SCLK_UART6>, <&cru PCLK_UART6>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 20>, <&dmac 21>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; @@ -452,6 +459,7 @@ clocks = <&cru SCLK_UART7>, <&cru PCLK_UART7>; clock-names = "baudclk", "apb_pclk"; interrupts = ; + dmas = <&dmac 22>, <&dmac 23>; reg-io-width = <4>; reg-shift = <2>; status = "disabled"; -- 2.50.1