diff options
Diffstat (limited to 'drivers/regulator/core.c')
| -rw-r--r-- | drivers/regulator/core.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 75a26f780918..c7bbe30010f7 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -24,6 +24,8 @@ #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> +#include "dummy.h" + #define REGULATOR_VERSION "0.5" static DEFINE_MUTEX(regulator_list_mutex); @@ -1123,6 +1125,22 @@ static struct regulator *_regulator_get(struct device *dev, const char *id, goto found; } } + +#ifdef CONFIG_REGULATOR_DUMMY + if (!devname) + devname = "deviceless"; + + /* If the board didn't flag that it was fully constrained then + * substitute in a dummy regulator so consumers can continue. + */ + if (!has_full_constraints) { + pr_warning("%s supply %s not found, using dummy regulator\n", + devname, id); + rdev = dummy_regulator_rdev; + goto found; + } +#endif + mutex_unlock(®ulator_list_mutex); return regulator; @@ -2483,8 +2501,15 @@ EXPORT_SYMBOL_GPL(regulator_get_init_drvdata); static int __init regulator_init(void) { + int ret; + printk(KERN_INFO "regulator: core version %s\n", REGULATOR_VERSION); - return class_register(®ulator_class); + + ret = class_register(®ulator_class); + + regulator_dummy_init(); + + return ret; } /* init early to allow our consumers to complete system booting */ |
