| From ef8d02d4a2c36f7a93e74c95a9c419353b310117 Mon Sep 17 00:00:00 2001 |
| From: Alexandre Belloni <alexandre.belloni@free-electrons.com> |
| Date: Thu, 19 Jan 2017 01:46:58 +0100 |
| Subject: ARM: dts: at91: Enable DMA on sama5d4_xplained console |
| |
| 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"; |
| }; |
| |
