mmc: sdhci-pci: Fix card detect race for Intel BXT/APL
Intel BXT/APL use a card detect GPIO however the host controller will not enable bus power unless it's card detect also reflects the presence of a card. Unfortunately those 2 things race which can result in commands not starting, after which the controller does nothing and there is a 10 second wait for the driver's 10-second timer to timeout. That is fixed by having the driver look also at the present state register to determine if the card is present. Consequently, provide a 'get_cd' mmc host operation for BXT/APL that does that. Signed-off-by:Adrian Hunter <adrian.hunter@intel.com> Cc: stable@vger.kernel.org # v4.4+ Signed-off-by:
Ulf Hansson <ulf.hansson@linaro.org>
parent
8d28b7a7
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