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Date: Thu, 19 Jan 2017 01:46:58 +0100 From: Alexandre Belloni <alexandre.belloni@...e-electrons.com> To: Nicolas Ferre <nicolas.ferre@...el.com> Cc: Kevin Hilman <khilman@...libre.com>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, Alexandre Belloni <alexandre.belloni@...e-electrons.com>, "stable #v4 . 1+" <stable@...r.kernel.org> Subject: [PATCH] ARM: dts: at91: Enable DMA on sama5d4_xplained console 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 <stable@...r.kernel.org> #v4.1+ Signed-off-by: Alexandre Belloni <alexandre.belloni@...e-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@...0c000 { + atmel,use-dma-rx; + atmel,use-dma-tx; status = "okay"; }; -- 2.11.0
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