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regulator: core: Link consumer with regulator driver

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Add a device link between the consumer and the driver so that
the consumer is not suspended before the driver. The goal is to avoid
implementing suspend_late ops in regulator drivers.

Signed-off-by: pascal paillet <p.paillet@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
pascal paillet
2018-07-05 14:25:56 +00:00
committed by Mark Brown
parent d8842211b6
commit ed1ae2dd9f
1 changed files with 16 additions and 2 deletions
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18
drivers/regulator/core.c
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@@ -1740,6 +1740,8 @@ struct regulator *_regulator_get(struct device *dev, const char *id,
rdev->use_count = 0; rdev->use_count = 0;
} }
device_link_add(dev, &rdev->dev, DL_FLAG_STATELESS);
return regulator; return regulator;
} }
@@ -1829,9 +1831,21 @@ static void _regulator_put(struct regulator *regulator)
debugfs_remove_recursive(regulator->debugfs); debugfs_remove_recursive(regulator->debugfs);
/* remove any sysfs entries */ if (regulator->dev) {
if (regulator->dev) int count = 0;
struct regulator *r;
list_for_each_entry(r, &rdev->consumer_list, list)
if (r->dev == regulator->dev)
count++;
if (count == 1)
device_link_remove(regulator->dev, &rdev->dev);
/* remove any sysfs entries */
sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name); sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name);
}
regulator_lock(rdev); regulator_lock(rdev);
list_del(&regulator->list); list_del(&regulator->list);