[PATCH] ARM: dts: at91: Enable DMA on sama5d4_xplained console

[Alexandre Belloni]

Enable DMA on usart3 to get a more reliable console. This is especially
useful for automation and kernelci were a kernel with PROVE_LOCKING enabled
is quite susceptible to character loss, resulting in tests failure.

Cc: stable <sta...@vger.kernel.org> #v4.1+
Signed-off-by: Alexandre Belloni <alexandre.bell...@free-electrons.com>
---
 arch/arm/boot/dts/at91-sama5d4_xplained.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/at91-sama5d4_xplained.dts 
b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
index ed7fce297738..44d1171c7fc0 100644
--- a/arch/arm/boot/dts/at91-sama5d4_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
@@ -110,6 +110,8 @@
                        };
 
                        usart3: serial@fc00c000 {
+                               atmel,use-dma-rx;
+                               atmel,use-dma-tx;
                                status = "okay";
                        };
 
-- 
2.11.0