Hi, On Wed, May 09 2012, Mark Brown wrote: > On Wed, May 09, 2012 at 04:15:26PM +0200, Ulf Hansson wrote: >> From: Ulf Hansson <ulf.hansson@xxxxxxxxxx> >> >> For eMMC cards that has been initialized from a bootloader, >> the VCC voltage supply must not be cut in an uncontrolled >> manner, without first sending SLEEP or POWEROFF_NOTIFY. >> >> The regulator_init_complete late initcall, may cut the VCC >> regulator if it's reference counter is zero. To be able to >> prevent the regulator from being cut, mmc_start_host, which >> should execute at device init and thus before late init, >> calls mmc_power_up. Then the host driver is able to increase >> the reference to the regulator. > > This looks like a good, simple solution - working out how we avoid extra > power ups will probably be more invasive and might not be worth the > effort for something that's boot time only. > > Reviwed-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx> Thanks, pushed to mmc-next for 3.5. - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
