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ARM: dts: at91: sama5d2 Xplained: use DMA for UART3
authorNicolas Ferre <nicolas.ferre@atmel.com>
Thu, 1 Dec 2016 10:49:49 +0000 (11:49 +0100)
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>
Tue, 10 Jan 2017 14:42:33 +0000 (15:42 +0100)
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>
arch/arm/boot/dts/at91-sama5d2_xplained.dts patch | blob | blame | history

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";