| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 15/91] ARM: dts: at91: Enable DMA on sama5d4_xplained console | Date | Fri, 10 Mar 2017 10:08:14 +0100 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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>
--- arch/arm/boot/dts/at91-sama5d4_xplained.dts | 2 ++ 1 file changed, 2 insertions(+)
--- 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"; };
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