Re: [PATCH v3 4/4] mmc: renesas_sdhi: skip SCC error check when retuning

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On Wed, Jul 18, 2018 at 02:22:18PM +0200, Niklas Söderlund wrote:
> Hi Simon,
> 
> On 2018-07-18 10:54:08 +0200, Simon Horman wrote:
> > Hi Niklas,
> > 
> > On Tue, Jul 17, 2018 at 04:52:16PM +0200, Niklas Söderlund wrote:
> > > From: Masaharu Hayakawa <masaharu.hayakawa.ry@xxxxxxxxxxx>
> > > 
> > > Checking for SCC error during retuning is unnecessary.
> > > 
> > > Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@xxxxxxxxxxx>
> > > [Niklas: fix small style issue]
> > > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
> > > Tested-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
> > > Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
> > > 
> > > ---
> > > 
> > > * Changes since v2
> > > - Added check for HS400 as it's now merged.
> > > - Added tags from Wolfram.
> > > ---
> > >  drivers/mmc/host/renesas_sdhi_core.c | 8 ++++++++
> > >  1 file changed, 8 insertions(+)
> > > 
> > > diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c
> > > index 777e32b0e410e850..a21b347424f67c52 100644
> > > --- a/drivers/mmc/host/renesas_sdhi_core.c
> > > +++ b/drivers/mmc/host/renesas_sdhi_core.c
> > > @@ -444,6 +444,14 @@ static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host)
> > >  {
> > >  	struct renesas_sdhi *priv = host_to_priv(host);
> > >  
> > > +	if (!(host->mmc->ios.timing == MMC_TIMING_UHS_SDR104) &&
> > > +	    !(host->mmc->ios.timing == MMC_TIMING_MMC_HS200) &&
> > > +	    !(host->mmc->ios.timing == MMC_TIMING_MMC_HS400))
> > 
> > According to the BSP this needs to differentiate between 4tap and 8tap
> > variants of HS400 support.
> 
> Ahh I see, yes it looks like this patch will require some work to update 
> to HS400. I might break this out to a own patch so the rest of the 
> patches in this series can progress as they fix other unrelated issues.
> 
> Thanks for letting me know about this.

Of course breaking this patch out from the series is fine by me.
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