mbox series

[0/4] mmc: sdhci: Tidy reset handling

Message ID 20220926192022.85660-1-adrian.hunter@intel.com
Headers show
Series mmc: sdhci: Tidy reset handling | expand

Message

Adrian Hunter Sept. 26, 2022, 7:20 p.m. UTC
Hi

When reviewing the patch "mmc: sdhci-tegra: Issue CMD and DAT resets
together" currently on the mailing list:

https://lore.kernel.org/linux-mmc/20220926094906.14537-3-pshete@nvidia.com/

it seemed like some small tidy up was needed first.  Hence these patches.

In particular, patch 4 "mmc: sdhci: Centralize CMD and DATA reset handling"
should enable the proposed quirk from the sdhci-tegra patch to be
implemented in a more consistent way.


Adrian Hunter (4):
      mmc: sdhci: Separate out sdhci_reset_for_all()
      mmc: sdhci: Remove misleading comment about resets
      mmc: sdhci: Get rid of SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS
      mmc: sdhci: Centralize CMD and DATA reset handling

 drivers/mmc/host/sdhci-pci-core.c | 23 ++++++++++-
 drivers/mmc/host/sdhci.c          | 84 ++++++++++++++++++++++++---------------
 drivers/mmc/host/sdhci.h          |  2 -
 3 files changed, 73 insertions(+), 36 deletions(-)


Regards
Adrian

Comments

Ulf Hansson Sept. 27, 2022, 12:13 p.m. UTC | #1
On Mon, 26 Sept 2022 at 21:20, Adrian Hunter <adrian.hunter@intel.com> wrote:
>
> Hi
>
> When reviewing the patch "mmc: sdhci-tegra: Issue CMD and DAT resets
> together" currently on the mailing list:
>
> https://lore.kernel.org/linux-mmc/20220926094906.14537-3-pshete@nvidia.com/
>
> it seemed like some small tidy up was needed first.  Hence these patches.
>
> In particular, patch 4 "mmc: sdhci: Centralize CMD and DATA reset handling"
> should enable the proposed quirk from the sdhci-tegra patch to be
> implemented in a more consistent way.
>
>
> Adrian Hunter (4):
>       mmc: sdhci: Separate out sdhci_reset_for_all()
>       mmc: sdhci: Remove misleading comment about resets
>       mmc: sdhci: Get rid of SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS
>       mmc: sdhci: Centralize CMD and DATA reset handling
>
>  drivers/mmc/host/sdhci-pci-core.c | 23 ++++++++++-
>  drivers/mmc/host/sdhci.c          | 84 ++++++++++++++++++++++++---------------
>  drivers/mmc/host/sdhci.h          |  2 -
>  3 files changed, 73 insertions(+), 36 deletions(-)
>
>
> Regards
> Adrian

Applied for next, thanks!

Kind regards
Uffe
Thierry Reding Sept. 27, 2022, 3:22 p.m. UTC | #2
On Mon, Sep 26, 2022 at 10:20:21PM +0300, Adrian Hunter wrote:
> SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS is used by only ENE controllers but can
> be replaced by driver code.
> 
> Amend the ENE code to hook the ->set_ios() mmc host operation and do the
> reset there.
> 
> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
> ---
>  drivers/mmc/host/sdhci-pci-core.c | 23 ++++++++++++++++++++++-
>  drivers/mmc/host/sdhci.c          |  8 --------
>  drivers/mmc/host/sdhci.h          |  2 --
>  3 files changed, 22 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
> index ed53276f6ad9..63613b3d648f 100644
> --- a/drivers/mmc/host/sdhci-pci-core.c
> +++ b/drivers/mmc/host/sdhci-pci-core.c
> @@ -297,6 +297,27 @@ static const struct sdhci_pci_fixes sdhci_ricoh_mmc = {
>  			  SDHCI_QUIRK_MISSING_CAPS
>  };
>  
> +static void ene_714_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
> +{
> +	struct sdhci_host *host = mmc_priv(mmc);
> +
> +	sdhci_set_ios(mmc, ios);
> +
> +	/*
> +	 * Some (ENE) controllers misbehave on some ios operations,

Nice rewording that you snuck in there. =)

I just realized, after going through the patches that Ulf has already
applied this, but FWIW, the series:

Reviewed-by: Thierry Reding <treding@nvidia.com>
Ulf Hansson Sept. 28, 2022, 8:11 a.m. UTC | #3
On Tue, 27 Sept 2022 at 17:22, Thierry Reding <thierry.reding@gmail.com> wrote:
>
> On Mon, Sep 26, 2022 at 10:20:21PM +0300, Adrian Hunter wrote:
> > SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS is used by only ENE controllers but can
> > be replaced by driver code.
> >
> > Amend the ENE code to hook the ->set_ios() mmc host operation and do the
> > reset there.
> >
> > Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
> > ---
> >  drivers/mmc/host/sdhci-pci-core.c | 23 ++++++++++++++++++++++-
> >  drivers/mmc/host/sdhci.c          |  8 --------
> >  drivers/mmc/host/sdhci.h          |  2 --
> >  3 files changed, 22 insertions(+), 11 deletions(-)
> >
> > diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
> > index ed53276f6ad9..63613b3d648f 100644
> > --- a/drivers/mmc/host/sdhci-pci-core.c
> > +++ b/drivers/mmc/host/sdhci-pci-core.c
> > @@ -297,6 +297,27 @@ static const struct sdhci_pci_fixes sdhci_ricoh_mmc = {
> >                         SDHCI_QUIRK_MISSING_CAPS
> >  };
> >
> > +static void ene_714_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
> > +{
> > +     struct sdhci_host *host = mmc_priv(mmc);
> > +
> > +     sdhci_set_ios(mmc, ios);
> > +
> > +     /*
> > +      * Some (ENE) controllers misbehave on some ios operations,
>
> Nice rewording that you snuck in there. =)

:-)

>
> I just realized, after going through the patches that Ulf has already
> applied this, but FWIW, the series:
>
> Reviewed-by: Thierry Reding <treding@nvidia.com>

No problem, I will add your tag to the series. Thanks for reviewing!

Kind regards
Uffe