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regulator: core: Pull non-DT supply mapping into regulator_dev_lookup() 

Ensure we always apply the supply mapping when doing a lookup rather than
only doing it in non-DT cases, ensuring that regulators with supplies
specified in the regulator_desc can find their supplies on non-DT systems
and generally making the code more obvious.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2012-03-30 12:24:37 +01:00
parent 6d191a5fc7
commit 576ca4367f
1 changed files with 16 additions and 13 deletions
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29
drivers/regulator/core.c
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@ -1174,6 +1174,8 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev,
{
struct regulator_dev *r;
struct device_node *node;
struct regulator_map *map;
const char *devname = NULL;
/* first do a dt based lookup */
if (dev && dev->of_node) {
@ -1195,10 +1197,24 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev,
}
/* if not found, try doing it non-dt way */
if (dev)
devname = dev_name(dev);
list_for_each_entry(r, &regulator_list, list)
if (strcmp(rdev_get_name(r), supply) == 0)
return r;
list_for_each_entry(map, &regulator_map_list, list) {
/* If the mapping has a device set up it must match */
if (map->dev_name &&
(!devname || strcmp(map->dev_name, devname)))
continue;
if (strcmp(map->supply, supply) == 0)
return map->regulator;
}
return NULL;
}
@ -1207,7 +1223,6 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
int exclusive)
{
struct regulator_dev *rdev;
struct regulator_map *map;
struct regulator *regulator = ERR_PTR(-EPROBE_DEFER);
const char *devname = NULL;
int ret;
@ -1226,18 +1241,6 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
if (rdev)
goto found;
list_for_each_entry(map, &regulator_map_list, list) {
/* If the mapping has a device set up it must match */
if (map->dev_name &&
(!devname || strcmp(map->dev_name, devname)))
continue;
if (strcmp(map->supply, id) == 0) {
rdev = map->regulator;
goto found;
}
}
if (board_wants_dummy_regulator) {
rdev = dummy_regulator_rdev;
goto found;