diff options
Diffstat (limited to 'drivers/regulator/core.c')
| -rw-r--r-- | drivers/regulator/core.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index cc8b337b9119..4fa08c85f3ce 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -33,6 +33,7 @@ static DEFINE_MUTEX(regulator_list_mutex); static LIST_HEAD(regulator_list); static LIST_HEAD(regulator_map_list); static int has_full_constraints; +static bool board_wants_dummy_regulator; /* * struct regulator_map @@ -1108,6 +1109,11 @@ static struct regulator *_regulator_get(struct device *dev, const char *id, } } + if (board_wants_dummy_regulator) { + rdev = dummy_regulator_rdev; + goto found; + } + #ifdef CONFIG_REGULATOR_DUMMY if (!devname) devname = "deviceless"; @@ -2463,6 +2469,22 @@ void regulator_has_full_constraints(void) EXPORT_SYMBOL_GPL(regulator_has_full_constraints); /** + * regulator_use_dummy_regulator - Provide a dummy regulator when none is found + * + * Calling this function will cause the regulator API to provide a + * dummy regulator to consumers if no physical regulator is found, + * allowing most consumers to proceed as though a regulator were + * configured. This allows systems such as those with software + * controllable regulators for the CPU core only to be brought up more + * readily. + */ +void regulator_use_dummy_regulator(void) +{ + board_wants_dummy_regulator = true; +} +EXPORT_SYMBOL_GPL(regulator_use_dummy_regulator); + +/** * rdev_get_drvdata - get rdev regulator driver data * @rdev: regulator * |