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mmc: sdhci-pxav2: add optional pinctrl for SDIO IRQ workaround
authorDoug Brown <doug@schmorgal.com>
Mon, 16 Jan 2023 19:44:00 +0000 (11:44 -0800)
committerUlf Hansson <ulf.hansson@linaro.org>
Tue, 24 Jan 2023 10:56:41 +0000 (11:56 +0100)
commitf35ca223882aa6faa25f39b9412066e33d8b6963
tree28f3fb8e5ee2ad36dec133f08d5d1c3125fff4fftree | snapshot
parent24552ccb4f1e0a9bf961056057aa8bd4c0d8dfe8commit | diff
mmc: sdhci-pxav2: add optional pinctrl for SDIO IRQ workaround

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>
drivers/mmc/host/sdhci-pxav2.c diff | blob | history
Domain: System / Kernel;