diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2021-07-31 22:50:32 +0300 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2021-08-26 21:27:51 +0300 |
| commit | b3636a3a2c51715736d3ec45f635ed03191962ce (patch) | |
| tree | 1d272a76183dccc1ac1980148239962a51fda3ec /drivers/base | |
| parent | 5d9bc010db0a4f5b17b3f5f982a85c49bb911754 (diff) | |
| download | linux-b3636a3a2c51715736d3ec45f635ed03191962ce.tar.xz | |
PM: runtime: add devm_pm_runtime_enable helper
A typical code pattern for pm_runtime_enable() call is to call it in the
_probe function and to call pm_runtime_disable() both from _probe error
path and from _remove function. For some drivers the whole remove
function would consist of the call to pm_remove_disable().
Add helper function to replace this bolierplate piece of code. Calling
devm_pm_runtime_enable() removes the need for calling
pm_runtime_disable() both in the probe()'s error path and in the
remove() function.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20210731195034.979084-2-dmitry.baryshkov@linaro.org
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/runtime.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 8a66eaf731e4..ec94049442b9 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -1447,6 +1447,23 @@ void pm_runtime_enable(struct device *dev) } EXPORT_SYMBOL_GPL(pm_runtime_enable); +static void pm_runtime_disable_action(void *data) +{ + pm_runtime_disable(data); +} + +/** + * devm_pm_runtime_enable - devres-enabled version of pm_runtime_enable. + * @dev: Device to handle. + */ +int devm_pm_runtime_enable(struct device *dev) +{ + pm_runtime_enable(dev); + + return devm_add_action_or_reset(dev, pm_runtime_disable_action, dev); +} +EXPORT_SYMBOL_GPL(devm_pm_runtime_enable); + /** * pm_runtime_forbid - Block runtime PM of a device. * @dev: Device to handle. |