On Tue, Jul 10, 2012 at 2:25 PM, Aaron Lu <aaron.lu@xxxxxxx> wrote: > Add a call to mmc_set_signal_voltage to set signal voltage to 3.3v in > mmc_power_up so that we do not need to touch signal voltage setting in > mmc/sd/sdio init functions and rescan function. > > For mmc/sd cards, when doing a suspend/resume cycle, consider the unsafe > resume case, the card will lose its power and when powered on again, we > will set signal voltage to 3.3v in mmc_power_up before its resume function > gets called, which will re-init the card. > > And for sdio cards, when doing a suspend/resume cycle, consider the unsafe > resume case, the card will either lose its power or not depending on if it > wants to wakeup the host. If power is not maintained, it is the same case as > mmc/sd cards. If power is maintained, mmc_power_up will not be called and > the card's signal voltage will remain at the last setting. > > Signed-off-by: Aaron Lu <aaron.lu@xxxxxxx> Nice cleanup. I tested this patch on my OMAP board for MMC and SD, but not for SDIO.. Tested-by: Venkatraman S <svenkatr@xxxxxx> > --- > drivers/mmc/core/core.c | 6 +++--- > drivers/mmc/core/mmc.c | 3 --- > drivers/mmc/core/sd.c | 3 --- > drivers/mmc/core/sdio.c | 7 ------- > 4 files changed, 3 insertions(+), 16 deletions(-) > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
