Re: mmc: sdhci: Fix FSL ESDHC reset handling quirk

[Jakub Kicinski <kubakici@wp.pl>]

On Thu, 30 Jul 2015 18:07:39 -0700, Greg KH wrote:
> On Wed, Jun 03, 2015 at 06:54:38AM +0200, Jakub Kicinski wrote:
> > On Wed, 3 Jun 2015 09:46:29 +0900, Greg KH wrote:
> > > On Tue, Jun 02, 2015 at 04:37:09PM +0200, Jakub Kicinski wrote:
> > > > Please include following patch from Linus' tree in the 3.18 branch.
> > > > Without it SDHC is unusable on Freescale P2020.  Thanks!
> > > > 
> > > > 
> > > > commit 556b5f33513f16450e8bb803c82a24377b94a34e
> > > 
> > > I don't see this commit anywhere in Linus's tree.  Where did you find
> > > it?
> > 
> > Argh, stupidly I sent you the commit id from after I applied this to
> > 3.18...  In Linus's tree it's 304f0a98d168, sorry.
> > 
> > 
> > commit 304f0a98d168563b5f69c53a7544c36e6d221ac4
> > Author: Alessio Igor Bogani <alessio.bogani@elettra.eu>
> > Date:   Tue Dec 9 09:40:38 2014 +0100
> > 
> >     mmc: sdhci: Fix FSL ESDHC reset handling quirk
> >     
> >     The commit 0718e59ae259 ("mmc: sdhci: move FSL ESDHC reset handling quirk into
> >     esdhc code") states that Freescale esdhc is the only controller which needs
> >     the interrupt registers restored after a reset. So it moves
> >     SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET quirk handling code into the
> >     esdhc-imx driver only. Unfortunately the same controller is used in
> >     other boards which use the of-esdhc driver instead (like powerpc P2020).
> >     
> >     Restore interrupts after reset in the sdhci-of-esdhc driver also.
> >     
> >     Signed-off-by: Alessio Igor Bogani <alessio.bogani@elettra.eu>
> >     Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
> 
> 
> I don't remember tree what you wanted this applied to, so I tried
> 3.14-stable, and that didn't work.  Can you be more specific?

OK, let me try again.  I would like the following commit to be applied
to 3.18:


commit 304f0a98d168563b5f69c53a7544c36e6d221ac4
Author: Alessio Igor Bogani <alessio.bogani@elettra.eu>
Date:   Tue Dec 9 09:40:38 2014 +0100
 
     mmc: sdhci: Fix FSL ESDHC reset handling quirk
     
     The commit 0718e59ae259 ("mmc: sdhci: move FSL ESDHC reset handling quirk into
     esdhc code") states that Freescale esdhc is the only controller which needs
     the interrupt registers restored after a reset. So it moves
     SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET quirk handling code into the
     esdhc-imx driver only. Unfortunately the same controller is used in
     other boards which use the of-esdhc driver instead (like powerpc P2020).
     
     Restore interrupts after reset in the sdhci-of-esdhc driver also.
     
     Signed-off-by: Alessio Igor Bogani <alessio.bogani@elettra.eu>
     Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>  


Thanks!