mmc: sdhci-pci: Fix initialization of some SD cards for Intel BYT-based controllers

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commit 2970134b92 upstream.

Bus power may control card power, but the full reset done by SDHCI at
initialization still may not reset the power, whereas a direct write to
SDHCI_POWER_CONTROL can. That might be needed to initialize correctly, if
the card was left powered on previously.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210331081752.23621-1-adrian.hunter@intel.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Adrian Hunter 2021-03-31 11:17:52 +03:00 • committed by Greg Kroah-Hartman

parent 01db7cb746

commit 6c43290972

1 changed files with 27 additions and 0 deletions

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

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