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 <amadeus@jmu.edu.cn>
Link: https://lore.kernel.org/r/20250401100020.944658-4-amadeus@jmu.edu.cn
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index 9c60bb41463833a04ac5b479c422bd5dedc497a8..826f9be0be19709252ec1811aed522c234001fdd 100644 (file)
--- 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 = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+                       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 = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+                       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 = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+                       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 = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+                       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 = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+                       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 = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+                       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 = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+                       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 = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+                       dmas = <&dmac 22>, <&dmac 23>;
                        reg-io-width = <4>;
                        reg-shift = <2>;
                        status = "disabled";