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authorSascha Hauer <s.hauer@pengutronix.de>2015-07-15 07:52:25 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2015-07-15 07:52:25 +0200
commit4dfa261dcf1ef212d8da34d53957f0764146850d (patch)
treeabd27ea06e44b6627d6b24c5c16cb975a5c0de8e /drivers/regulator
parente47bfe803be150e705ea66939351346119ce107e (diff)
downloadbarebox-4dfa261dcf1ef212d8da34d53957f0764146850d.tar.gz
regulator: Add support for regulator-boot-on device tree property
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/regulator')
-rw-r--r--drivers/regulator/core.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 96bf846..73f5c6e 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -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);