ARM: dts: at91: sama5d2 Xplained: use DMA for UART3

Use DMA for UART3 as we have enough channels and to show how to
specify DMA use with serial nodes.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index 0b9a59d5fdac7e7c39b0ed2c4417795bfa84e22d..e2d5cb3fecb1cb731633100af858b306db1250b0 100644 (file)
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -256,6 +256,8 @@
                        };
 
                        uart3: serial@fc008000 {
+                               atmel,use-dma-rx;
+                               atmel,use-dma-tx;
                                pinctrl-names = "default";
                                pinctrl-0 = <&pinctrl_uart3_default>;
                                status = "okay";