ARM: dts: sun8i: a23/a33: 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/20230321215624.78383-4-cristian.ciocaltea@collabora.com
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>

diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
index f630ab55bb6ad3b91e38342795b8a14f8286462f..4aa9d88c9ea3a4bf06841c051cb3377d3a1b70fa 100644 (file)
--- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
@@ -490,7 +490,7 @@
                        clocks = <&ccu CLK_BUS_UART0>;
                        resets = <&ccu RST_BUS_UART0>;
                        dmas = <&dma 6>, <&dma 6>;
-                       dma-names = "rx", "tx";
+                       dma-names = "tx", "rx";
                        status = "disabled";
                };
 
@@ -503,7 +503,7 @@
                        clocks = <&ccu CLK_BUS_UART1>;
                        resets = <&ccu RST_BUS_UART1>;
                        dmas = <&dma 7>, <&dma 7>;
-                       dma-names = "rx", "tx";
+                       dma-names = "tx", "rx";
                        status = "disabled";
                };
 
@@ -516,7 +516,7 @@
                        clocks = <&ccu CLK_BUS_UART2>;
                        resets = <&ccu RST_BUS_UART2>;
                        dmas = <&dma 8>, <&dma 8>;
-                       dma-names = "rx", "tx";
+                       dma-names = "tx", "rx";
                        status = "disabled";
                };
 
@@ -529,7 +529,7 @@
                        clocks = <&ccu CLK_BUS_UART3>;
                        resets = <&ccu RST_BUS_UART3>;
                        dmas = <&dma 9>, <&dma 9>;
-                       dma-names = "rx", "tx";
+                       dma-names = "tx", "rx";
                        status = "disabled";
                };
 
@@ -542,7 +542,7 @@
                        clocks = <&ccu CLK_BUS_UART4>;
                        resets = <&ccu RST_BUS_UART4>;
                        dmas = <&dma 10>, <&dma 10>;
-                       dma-names = "rx", "tx";
+                       dma-names = "tx", "rx";
                        status = "disabled";
                };