On Mon, Nov 21, 2022 at 02:37:03PM +0200, Ilpo Järvinen wrote:
> commit 7090abd6ad0610a144523ce4ffcb8560909bf2a8 upstream.
>
> Configure DMA to use 16B burst size with Elkhart Lake. This makes the
> bus use more efficient and works around an issue which occurs with the
> previously used 1B.
>
> The fix was initially developed by Srikanth Thokala and Aman Kumar.
> This together with the previous config change is the cleaned up version
> of the original fix.
>
> Fixes: 0a9410b981e9 ("serial: 8250_lpss: Enable DMA on Intel Elkhart Lake")
> Cc: <stable@xxxxxxxxxxxxxxx> # serial: 8250_lpss: Configure DMA also w/o DMA filter
> Reported-by: Wentong Wu <wentong.wu@xxxxxxxxx>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> Link: https://lore.kernel.org/r/20221108121952.5497-4-ilpo.jarvinen@xxxxxxxxxxxxxxx
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> ---
> drivers/tty/serial/8250/8250_lpss.c | 3 +++
> 1 file changed, 3 insertions(+)
Now queued up, thanks.
greg k-h
