linux_dsm_epyc7002/drivers/mmc
Ulf Hansson fa5501890d mmc: core: Prevent eMMC VCC supply to be cut from late init
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.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2012-05-09 12:55:01 -04:00
..
card mmc: queue: remove redundant memsets 2012-05-09 10:10:46 -04:00
core mmc: core: Prevent eMMC VCC supply to be cut from late init 2012-05-09 12:55:01 -04:00
host mmc: dw_mmc: make multiple instances of dw_mci_card_workqueue 2012-05-09 10:14:10 -04:00
Kconfig mmc: explicitly mention SDIO support in Kconfig 2008-10-12 11:04:36 +02:00
Makefile mmc: sdhci-pci: add platform data 2012-01-11 23:58:47 -05:00