mmc: sdhci-pci: Workaround GLK firmware failing to restore the tuning value

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commit 5305ec6a27 upstream.

GLK firmware can indicate that the tuning value will be restored after
runtime suspend, but not actually do that. Add a workaround that detects
such cases, and lets the driver do re-tuning instead.

Reported-by: Anisse Astier <anisse@astier.eu>
Tested-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Adrian Hunter 2018-11-19 14:53:07 +02:00 • committed by Greg Kroah-Hartman

parent 52f4036282

commit 6d24302acc

1 changed files with 77 additions and 2 deletions

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drivers/mmc/host/sdhci-pci-core.c

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