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regulator: Add support for regulator-boot-on device tree property 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2015-07-15 07:52:25 +02:00
parent e47bfe803b
commit 4dfa261dcf
2 changed files with 16 additions and 0 deletions
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15
drivers/regulator/core.c
View File

@ -89,6 +89,7 @@ static int regulator_disable_internal(struct regulator_internal *ri)
static struct regulator_internal * __regulator_register(struct regulator_dev *rd, const char *name)
{
struct regulator_internal *ri;
int ret;
ri = xzalloc(sizeof(*ri));
ri->rdev = rd;
@ -100,7 +101,19 @@ static struct regulator_internal * __regulator_register(struct regulator_dev *rd
if (name)
ri->name = xstrdup(name);
if (rd->boot_on) {
ret = regulator_enable_internal(ri);
if (ret && ret != -ENOSYS)
goto err;
}
return ri;
err:
list_del(&ri->list);
free(ri->name);
free(ri);
return ERR_PTR(ret);
}
@ -117,6 +130,8 @@ int of_regulator_register(struct regulator_dev *rd, struct device_node *node)
struct regulator_internal *ri;
const char *name;
rd->boot_on = of_property_read_bool(node, "regulator-boot-on");
name = of_get_property(node, "regulator-name", NULL);
ri = __regulator_register(rd, name);

1
include/regulator.h
View File

@ -6,6 +6,7 @@ struct regulator;
struct regulator_dev {
struct regulator_ops *ops;
int boot_on;
};
struct regulator_ops {