From mboxrd@z Thu Jan 1 00:00:00 1970 From: nicolas.ferre@atmel.com (Nicolas Ferre) Date: Thu, 1 Dec 2016 11:49:49 +0100 Subject: [PATCH 3/3] ARM: dts: at91: sama5d2 Xplained: use DMA for UART3 In-Reply-To: <20161201104949.23985-1-nicolas.ferre@atmel.com> References: <20161201104949.23985-1-nicolas.ferre@atmel.com> Message-ID: <20161201104949.23985-3-nicolas.ferre@atmel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Use DMA for UART3 as we have enough channels and to show how to specify DMA use with serial nodes. Signed-off-by: Nicolas Ferre --- arch/arm/boot/dts/at91-sama5d2_xplained.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts index 0b9a59d5fdac..e2d5cb3fecb1 100644 --- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts +++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts @@ -256,6 +256,8 @@ }; uart3: serial at fc008000 { + atmel,use-dma-rx; + atmel,use-dma-tx; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_uart3_default>; status = "okay"; -- 2.9.0