| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.1 082/159] mmc: sdhci-pci: set the clear transfer mode register quirk for O2Micro | Date | Sat, 26 Sep 2015 13:55:28 -0700 |
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4.1-stable review patch. If anyone has any objections, please let me know.
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From: Adam Lee <adam.lee@canonical.com>
commit 143b648ddf1583905fa15d32be27a31442fc7933 upstream.
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: Peter Guo <peter.guo@bayhubtech.com> Signed-off-by: Adam Lee <adam.lee@canonical.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/mmc/host/sdhci-pci.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -549,6 +549,7 @@ static int jmicron_resume(struct sdhci_p 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, };
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