diff options
| author | pascal paillet <p.paillet@st.com> | 2018-07-05 16:25:56 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-05 19:55:20 +0200 |
| commit | ed1ae2dd9f242c7a36e8e39100f6a7f6bcdfdd89 (patch) | |
| tree | 9410814bd9ef17ccd80eaf12b3eed19cb300c81d | |
| parent | driver core: Add device_link_remove function (diff) | |
| download | linux-ed1ae2dd9f242c7a36e8e39100f6a7f6bcdfdd89.tar.xz linux-ed1ae2dd9f242c7a36e8e39100f6a7f6bcdfdd89.zip | |
regulator: core: Link consumer with regulator driver
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>
| -rw-r--r-- | drivers/regulator/core.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index da9b0fed8330..bb1324f93143 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1740,6 +1740,8 @@ struct regulator *_regulator_get(struct device *dev, const char *id, rdev->use_count = 0; } + device_link_add(dev, &rdev->dev, DL_FLAG_STATELESS); + return regulator; } @@ -1829,9 +1831,21 @@ static void _regulator_put(struct regulator *regulator) 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); + } + regulator_lock(rdev); list_del(®ulator->list); |