Re: [PATCH v2 2/2] imx53.dtsi : Add DMA configuration for UART

Alexander Shiyan shc_work at mail.ru
Thu Aug 4 03:49:10 PDT 2016


>Четверг,  4 августа 2016, 13:22 +03:00 от Fabien Lahoudere <fabien.lahoudere at collabora.co.uk>:
>
>In order to use sdma with UART, we need to add DMA configuration in device tree.
>
>Signed-off-by: Fabien Lahoudere < fabien.lahoudere at collabora.co.uk >
>---
> arch/arm/boot/dts/imx53.dtsi | 10 ++++++++++
> 1 file changed, 10 insertions(+)
...

Hello.

UART SDMA has been tested by me for i.MX51.
So, on my opinion, In the first part of the patch, we just need to remove is_imx6q_uart()
check on and always let the devicetree decide about DMA usage.

Thanks.
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