Hi Dan, On Tue, Jul 03 2012, Daniel Drake wrote: > At http://dev.laptop.org/ticket/11980 we have determined that the > Marvell CaFe SDHCI controller reports bad card presence during > resume. It reports that no card is present even when it is. > > Around 400ms after resuming, a "card inserted" interrupt is generated, > at which point it starts reporting presence. > > Work around this hardware oddity by setting the > SDHCI_QUIRK_BROKEN_CARD_DETECTION flag. Thanks to Chris Ball for helping > with diagnosis. > > Signed-off-by: Daniel Drake <d...@laptop.org> > --- > drivers/mmc/host/sdhci-pci.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c > index 69ef0be..504da71 100644 > --- a/drivers/mmc/host/sdhci-pci.c > +++ b/drivers/mmc/host/sdhci-pci.c > @@ -157,6 +157,7 @@ static const struct sdhci_pci_fixes sdhci_ene_714 = { > static const struct sdhci_pci_fixes sdhci_cafe = { > .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER | > SDHCI_QUIRK_NO_BUSY_IRQ | > + SDHCI_QUIRK_BROKEN_CARD_DETECTION | > SDHCI_QUIRK_BROKEN_TIMEOUT_VAL, > };
Thanks, pushed to mmc-next for 3.6 with a stable@ tag to fix the regression. - Chris. -- Chris Ball <c...@laptop.org> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
