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Commit 143b648d authored by Adam Lee's avatar Adam Lee Committed by Ulf Hansson
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mmc: sdhci-pci: set the clear transfer mode register quirk for O2Micro 



This patch fixes MMC not working issue on O2Micro/BayHub Host, which
requires transfer mode register to be cleared when sending no DMA
command.

Signed-off-by: default avatarPeter Guo <peter.guo@bayhubtech.com>
Signed-off-by: default avatarAdam Lee <adam.lee@canonical.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 22d7e85f

drivers/mmc/host/sdhci-pci.c

+1 −0
Original line number Diff line number Diff line
@@ -618,6 +618,7 @@ static int jmicron_resume(struct sdhci_pci_chip *chip) 
static const struct sdhci_pci_fixes sdhci_o2 = {

	.probe = sdhci_pci_o2_probe,

	.quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,

	.quirks2 = SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD,

	.probe_slot = sdhci_pci_o2_probe_slot,

	.resume = sdhci_pci_o2_resume,

};