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.
>
> > + return false;
> > +
> > + if (host->mmc->doing_retune)
> > + return false;
> > +
> > /* Check SCC error */
> > if (sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL) &
> > SH_MOBILE_SDHI_SCC_RVSCNTL_RVSEN &&
> > --
> > 2.18.0
> >
--
Regards,
Niklas Söderlund
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