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authorAlexandre Belloni <alexandre.belloni@free-electrons.com>2017-01-19 01:46:58 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-03-12 06:37:24 +0100
commitbe83ed085fcd8808747bd6d2f416a5ecee0aa7e5 (patch)
tree4ddafc9505ce5ff7c6d86918f9d65edb7444964c /arch/arm
parentb401418c6cc3c7eeb3376d4ca57334680d1df8d9 (diff)
ARM: dts: at91: Enable DMA on sama5d4_xplained console
commit ef8d02d4a2c36f7a93e74c95a9c419353b310117 upstream. 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. Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/boot/dts/at91-sama5d4_xplained.dts2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/at91-sama5d4_xplained.dts b/arch/arm/boot/dts/at91-sama5d4_xplained.dts
index da84e65b56ef..e27024cdf48b 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";
};