From mboxrd@z Thu Jan 1 00:00:00 1970 From: festevam@gmail.com (Fabio Estevam) Date: Wed, 3 Aug 2016 11:26:48 -0300 Subject: [PATCH 2/2] imx53.dtsi : Add DMA configuration for UART In-Reply-To: <1470233593-4513-2-git-send-email-fabien.lahoudere@collabora.co.uk> References: <1470233593-4513-1-git-send-email-fabien.lahoudere@collabora.co.uk> <1470233593-4513-2-git-send-email-fabien.lahoudere@collabora.co.uk> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Fabien, On Wed, Aug 3, 2016 at 11:13 AM, Fabien Lahoudere wrote: > In order to use sdma with UART, we need to add DMA configuration in device tree. > > Signed-off-by: Fabien Lahoudere > --- > arch/arm/boot/dts/imx53.dtsi | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi > index cd17037..de545e2 100644 > --- a/arch/arm/boot/dts/imx53.dtsi > +++ b/arch/arm/boot/dts/imx53.dtsi > @@ -217,6 +217,8 @@ > clocks = <&clks IMX5_CLK_UART3_IPG_GATE>, > <&clks IMX5_CLK_UART3_PER_GATE>; > clock-names = "ipg", "per"; > + dmas = <&sdma 42 4 0>, <&sdma 43 4 0>; > + dma-names = "rx", "tx"; > status = "disabled"; > }; Care to add the dma channels for uart1 as well? Thanks