ARM: dts: sun8i: v3s: Switch dma-names order for snps,dw-apb-uart nodes

Commit 370f696e4474 ("dt-bindings: serial: snps-dw-apb-uart: add dma &
dma-names properties") documented dma-names property to handle Allwinner
D1 dtbs_check warnings, but relies on the rx->tx ordering, which is the
reverse of what a bunch of different boards expect.

The initial proposed solution was to allow a flexible dma-names order in
the binding, due to potential ABI breakage concerns after fixing the DTS
files. But luckily the Allwinner boards are not affected, since they are
using a shared DMA channel for rx and tx.

Hence, the first step in fixing the inconsistency was to change
dma-names order in the binding to tx->rx.

Do the same for the snps,dw-apb-uart nodes in the DTS file.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230321215624.78383-5-cristian.ciocaltea@collabora.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>

diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index db194c606fdcdf48bb7d13c9ca5de0042cd8a69b..b001251644f75ec5018371dac57a10df1c9c7474 100644 (file)
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -479,7 +479,7 @@
                        reg-io-width = <4>;
                        clocks = <&ccu CLK_BUS_UART0>;
                        dmas = <&dma 6>, <&dma 6>;
-                       dma-names = "rx", "tx";
+                       dma-names = "tx", "rx";
                        resets = <&ccu RST_BUS_UART0>;
                        status = "disabled";
                };
@@ -492,7 +492,7 @@
                        reg-io-width = <4>;
                        clocks = <&ccu CLK_BUS_UART1>;
                        dmas = <&dma 7>, <&dma 7>;
-                       dma-names = "rx", "tx";
+                       dma-names = "tx", "rx";
                        resets = <&ccu RST_BUS_UART1>;
                        status = "disabled";
                };
@@ -505,7 +505,7 @@
                        reg-io-width = <4>;
                        clocks = <&ccu CLK_BUS_UART2>;
                        dmas = <&dma 8>, <&dma 8>;
-                       dma-names = "rx", "tx";
+                       dma-names = "tx", "rx";
                        resets = <&ccu RST_BUS_UART2>;
                        pinctrl-0 = <&uart2_pins>;
                        pinctrl-names = "default";