diff options
Diffstat (limited to 'drivers/mmc/core/core.c')
| -rw-r--r-- | drivers/mmc/core/core.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 02f2b1871a3..be1fc013fbe 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1151,6 +1151,40 @@ void mmc_stop_host(struct mmc_host *host) mmc_power_off(host); } +void mmc_power_save_host(struct mmc_host *host) +{ + mmc_bus_get(host); + + if (!host->bus_ops || host->bus_dead || !host->bus_ops->power_restore) { + mmc_bus_put(host); + return; + } + + if (host->bus_ops->power_save) + host->bus_ops->power_save(host); + + mmc_bus_put(host); + + mmc_power_off(host); +} +EXPORT_SYMBOL(mmc_power_save_host); + +void mmc_power_restore_host(struct mmc_host *host) +{ + mmc_bus_get(host); + + if (!host->bus_ops || host->bus_dead || !host->bus_ops->power_restore) { + mmc_bus_put(host); + return; + } + + mmc_power_up(host); + host->bus_ops->power_restore(host); + + mmc_bus_put(host); +} +EXPORT_SYMBOL(mmc_power_restore_host); + #ifdef CONFIG_PM /** |