Re: [PATCH 0/9] mmc: sdhi: some refactoring and adding basic r8a7795 support

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On 25 January 2016 at 20:15, Wolfram Sang <wsa@xxxxxxxxxxxxx> wrote:
> So, here is the series to enable basic SD support on r8a7795; no DMA and UHS-I
> for now. Will be added incrementally. It turns out that the driver needs a
> little love, so some refactoring is also in place before adding the actual
> support.
>
> eMMC works in 4-bit mode, too. 8-bit mode sadly fails currently. I'll post MMC
> support patches once this issue is fixed.
>
> These patches have been tested on Gen3 (Salvator-X) and Gen2 (Lager), doing
> basic operations with SD cards and running the mmc_test driver (its results
> point out some potential corner cases to check later).
>
> A branch can be found here (including clock and DTS patches):
>
> git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/v8-sdhi
>
> Changes since RFC (only sent to sh-devel lists):
>
> * patches 1,7,8 are new
> * patch 4 drops 10ms wait also for set_clock
> * patch 9 also sets MMC_CAP_WAIT_WHILE_BUSY (see comment there)
> * some commit message rewording
>
> Please test, comment, apply...
>
> Thanks,
>
>    Wolfram
>
>
> Shinobu Uehara (1):
>   mmc: sdhi: Add EXT_ACC register busy check
>
> Wolfram Sang (8):
>   mmc: tmio_dma: remove debug messages with little information
>   mmc: sdhi: error message on ENOMEM is superfluous
>   mmc: tmio: add flag to reduce delay after changing clock status
>   mmc: tmio: remove stale comments
>   mmc: sdhi: use faster clock handling on RCar Gen2
>   mmc: tmio: refactor set_clock a little
>   mmc: tmio: disable clock before changing it
>   mmc: sdhi: Add r8a7795 support
>
>  Documentation/devicetree/bindings/mmc/tmio_mmc.txt |  1 +
>  drivers/mmc/host/Kconfig                           |  2 +-
>  drivers/mmc/host/sh_mobile_sdhi.c                  | 54 +++++++++++++++-------
>  drivers/mmc/host/tmio_mmc_dma.c                    | 12 -----
>  drivers/mmc/host/tmio_mmc_pio.c                    | 27 ++++++-----
>  include/linux/mfd/tmio.h                           |  4 ++
>  include/linux/mmc/tmio.h                           |  5 ++
>  7 files changed, 63 insertions(+), 42 deletions(-)
>
> --
> 2.1.4
>

Patch 1->8 looks good.

Although, I couldn't apply patch1, could you please send a new version
rebased onto my next branch.

Kind regards
Uffe
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