On Tue, Jul 26, 2011 at 3:06 PM, Zhangfei Gao <zhangfei....@marvell.com> wrote: > Move vmmc to set_ios, as a result mmc_power_up/down handles > regulator_enable/disable vmmc > Move regulator outof spin_lock, since usually i2c operation is called > Remove vmmc from suspend/resume function, instead vmmc is handled properly in > mmc_suspend/resume_host according to mmc_card_keep_power > > CC: Ohad Ben-Cohen <o...@wizery.com> > Signed-off-by: Zhangfei Gao <zhangfei....@marvell.com> > --- > drivers/mmc/host/sdhci.c | 27 +++++++++++++++------------ > include/linux/mmc/sdhci.h | 1 + > 2 files changed, 16 insertions(+), 12 deletions(-) >
Hi, Daniel We found some impact to sd if reusing vmmc in set_ios, when no sd card is inserted. When no sd card, CD pin is high, but when vmmc is disabled in mmc_power_down, as a result CD pin will be pulled down, which is same as sd card is inserted, however the card detect will fail since no sd card in fact. So additional regulator vsdio still required to control power of vsdio, to make mmc_power_up/down control sdio power. Thanks -- 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
