Commit 2681bbaa authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Tzung-Bi Shih
Browse files

ACPI: battery: add devm_battery_hook_register() 



Add a utility function for device-managed registration of battery hooks.
The function makes it easier to manage the lifecycle of a hook.

Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240630-cros_ec-charge-control-v5-1-8f649d018c52@weissschuh.net


Signed-off-by: default avatarTzung-Bi Shih <tzungbi@kernel.org>
parent 5b8feca8

drivers/acpi/battery.c

+15 −0
Original line number Diff line number Diff line
@@ -756,6 +756,21 @@ void battery_hook_register(struct acpi_battery_hook *hook) 
}

EXPORT_SYMBOL_GPL(battery_hook_register);



static void devm_battery_hook_unregister(void *data)

{

	struct acpi_battery_hook *hook = data;



	battery_hook_unregister(hook);

}



int devm_battery_hook_register(struct device *dev, struct acpi_battery_hook *hook)

{

	battery_hook_register(hook);



	return devm_add_action_or_reset(dev, devm_battery_hook_unregister, hook);

}

EXPORT_SYMBOL_GPL(devm_battery_hook_register);



/*

 * This function gets called right after the battery sysfs

 * attributes have been added, so that the drivers that

include/acpi/battery.h

+2 −0
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 
#ifndef __ACPI_BATTERY_H

#define __ACPI_BATTERY_H



#include <linux/device.h>

#include <linux/power_supply.h>



#define ACPI_BATTERY_CLASS "battery"
@@ -19,5 +20,6 @@ struct acpi_battery_hook { 


void battery_hook_register(struct acpi_battery_hook *hook);

void battery_hook_unregister(struct acpi_battery_hook *hook);

int devm_battery_hook_register(struct device *dev, struct acpi_battery_hook *hook);



#endif