diff options
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/core.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 12b271c2a912..1f0f44f4dd5f 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1588,6 +1588,16 @@ EXPORT_SYMBOL_GPL(mmc_regulator_set_vqmmc); #endif /* CONFIG_REGULATOR */ +/** + * mmc_regulator_get_supply - try to get VMMC and VQMMC regulators for a host + * @mmc: the host to regulate + * + * Returns 0 or errno. errno should be handled, it is either a critical error + * or -EPROBE_DEFER. 0 means no critical error but it does not mean all + * regulators have been found because they all are optional. If you require + * certain regulators, you need to check separately in your driver if they got + * populated after calling this function. + */ int mmc_regulator_get_supply(struct mmc_host *mmc) { struct device *dev = mmc_dev(mmc); |