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| author |   Ognjen Galic <smclt30p@gmail.com> | 2018-02-07 15:58:27 +0100 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-02-21 23:27:13 +0100 |
| commit | 285995d15d3b1725d021a8a274e55f2ce30ccfa0 (patch) | |
| tree | 1aefa04c3ce461968403105edc9e7f5bada19475 /include/linux/power_supply.h | |
| parent | battery: Add the battery hooking API (diff) | |
| download | wireguard-linux-285995d15d3b1725d021a8a274e55f2ce30ccfa0.tar.xz wireguard-linux-285995d15d3b1725d021a8a274e55f2ce30ccfa0.zip | |
power: add to_power_supply macro to the API
This patch adds the to_power_supply macro to upcast
a device to a power_supply struct.
This is needed because the same piece of code using
container_of is used in various other places, so we
abstract away such low-level operations via a macro.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Ognjen Galic <smclt30p@gmail.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/power_supply.h')
| -rw-r--r-- | include/linux/power_supply.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 79e90b3d3288..f0139b460a72 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -371,6 +371,8 @@ devm_power_supply_register_no_ws(struct device *parent, extern void power_supply_unregister(struct power_supply *psy); extern int power_supply_powers(struct power_supply *psy, struct device *dev); +#define to_power_supply(device) container_of(device, struct power_supply, dev) + extern void *power_supply_get_drvdata(struct power_supply *psy); /* For APM emulation, think legacy userspace. */ extern struct class *power_supply_class; |