[PATCHv2] mmc: dw_mmc: change to use recommended reset procedure

[Kukjin Kim]

Sonny Rao wrote:
> 
> This patch changes the fifo reset code to follow the reset procedure
> outlined in the documentation of Synopsys  Mobile storage host databook
> 7.2.13.
> 
> v2: Add Generic DMA support
>     per the documentation, move interrupt clear before wait
>     make the test for DMA host->use_dma rather than host->using_dma
>     add proper return values (although it appears no caller checks)

Above changes should be put after following '---'.

> 
> Signed-off-by: Sonny Rao <sonnyrao at chromium.org>
> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd at samsung.com>
> ---

Here.

- Kukjin

>  drivers/mmc/host/dw_mmc.c | 55
> ++++++++++++++++++++++++++++++++++++++++++++++-
>  drivers/mmc/host/dw_mmc.h |  1 +
>  2 files changed, 55 insertions(+), 1 deletion(-)