On 30 August 2017 at 04:58, Ziyuan <ziyuan.biubiu@xxxxxxxxx> wrote:
> Since commit 3fc7eaef44db ("mmc: dw_mmc: Add external dma interface
> support") use_dma no longer means only the data transfer mode, and
> includes dma transmission channel. So make it more clear.
>
> Signed-off-by: Ziyuan <ziyuan.biubiu@xxxxxxxxx>
Thanks, applied for next!
Kind regards
Uffe
> ---
> drivers/mmc/host/dw_mmc.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
> index 34474ad..e3124f0 100644
> --- a/drivers/mmc/host/dw_mmc.h
> +++ b/drivers/mmc/host/dw_mmc.h
> @@ -74,7 +74,8 @@ struct dw_mci_dma_slave {
> * @stop_abort: The command currently prepared for stoping transfer.
> * @prev_blksz: The former transfer blksz record.
> * @timing: Record of current ios timing.
> - * @use_dma: Whether DMA channel is initialized or not.
> + * @use_dma: Which DMA channel is in use for the current transfer, zero
> + * denotes PIO mode.
> * @using_dma: Whether DMA is in use for the current transfer.
> * @dma_64bit_address: Whether DMA supports 64-bit address mode or not.
> * @sg_dma: Bus address of DMA buffer.
> --
> 2.7.4
>
>
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