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

[Luis Henriques <luis.henriques@canonical.com>]

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!
> 

It looks like this fix is also applicable to the 3.16 kernel.  I'll
queue it for the next release.

Cheers,
--
Lu�s

> 
> commit 556b5f33513f16450e8bb803c82a24377b94a34e
> From: Alessio Igor Bogani <alessio.bogani@elettra.eu>
> Date: Tue, 9 Dec 2014 09:40:38 +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>
> 
>  drivers/mmc/host/sdhci-of-esdhc.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
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