[PATCH] arm64: dts: rockchip: Add DMA channel names for rk356x

[Uwe Kleine-König]

This fixes:

	of_dma_request_slave_channel: dma-names property of node '/serial at fe660000' missing or empty
	dw-apb-uart fe660000.serial: failed to request DMA

when I use ttyS2. Note this is only a warning, the UART still works. It
just doesn't use DMA.

Fixes: a3adc0b9071d ("arm64: dts: rockchip: add core dtsi for RK3568 SoC")
Signed-off-by: Uwe Kleine-König <ukleinek at debian.org>
---
 arch/arm64/boot/dts/rockchip/rk356x.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
index c19c0f1b3778..13ad66f40ec2 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
@@ -448,6 +448,7 @@ uart0: serial at fdd50000 {
 		clocks = <&pmucru SCLK_UART0>, <&pmucru PCLK_UART0>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 0>, <&dmac0 1>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1347,6 +1348,7 @@ uart1: serial at fe650000 {
 		clocks = <&cru SCLK_UART1>, <&cru PCLK_UART1>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 2>, <&dmac0 3>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart1m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1361,6 +1363,7 @@ uart2: serial at fe660000 {
 		clocks = <&cru SCLK_UART2>, <&cru PCLK_UART2>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 4>, <&dmac0 5>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart2m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1375,6 +1378,7 @@ uart3: serial at fe670000 {
 		clocks = <&cru SCLK_UART3>, <&cru PCLK_UART3>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 6>, <&dmac0 7>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart3m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1389,6 +1393,7 @@ uart4: serial at fe680000 {
 		clocks = <&cru SCLK_UART4>, <&cru PCLK_UART4>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 8>, <&dmac0 9>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart4m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1403,6 +1408,7 @@ uart5: serial at fe690000 {
 		clocks = <&cru SCLK_UART5>, <&cru PCLK_UART5>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 10>, <&dmac0 11>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart5m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1417,6 +1423,7 @@ uart6: serial at fe6a0000 {
 		clocks = <&cru SCLK_UART6>, <&cru PCLK_UART6>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 12>, <&dmac0 13>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart6m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1431,6 +1438,7 @@ uart7: serial at fe6b0000 {
 		clocks = <&cru SCLK_UART7>, <&cru PCLK_UART7>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 14>, <&dmac0 15>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart7m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1445,6 +1453,7 @@ uart8: serial at fe6c0000 {
 		clocks = <&cru SCLK_UART8>, <&cru PCLK_UART8>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 16>, <&dmac0 17>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart8m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;
@@ -1459,6 +1468,7 @@ uart9: serial at fe6d0000 {
 		clocks = <&cru SCLK_UART9>, <&cru PCLK_UART9>;
 		clock-names = "baudclk", "apb_pclk";
 		dmas = <&dmac0 18>, <&dmac0 19>;
+		dma-names = "tx", "rx";
 		pinctrl-0 = <&uart9m0_xfer>;
 		pinctrl-names = "default";
 		reg-io-width = <4>;

base-commit: 20af1ca418d2c0b11bc2a1fe8c0c88f67bcc2a7e
-- 
2.43.0