mmc: sdhci-pxav2: add optional pinctrl for SDIO IRQ workaround

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The PXA168 errata recommends that the CMD signal should be detached from
the SD bus while performing the dummy CMD0 to restart the clock.
Implement this using pinctrl states.

Signed-off-by: Doug Brown <doug@schmorgal.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20230116194401.20372-8-doug@schmorgal.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Doug Brown 2023-01-16 11:44:00 -08:00 • committed by Ulf Hansson

parent 24552ccb4f

commit f35ca22388

1 changed files with 32 additions and 1 deletions

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drivers/mmc/host/sdhci-pxav2.c

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