power: supply: bq27xxx_battery: allow kernel poll_interval parameter runtime update
Fix issue with poll_interval being not updated till the previous interval expired. Cc: Tony Lindgren <tony@atomide.com> Cc: Liam Breck <liam@networkimprov.net> Signed-off-by: Matt Ranostay <matt@ranostay.consulting> Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Родитель
389958bb6b
Коммит
1d72706f04
|
@ -39,6 +39,7 @@
|
|||
|
||||
#include <linux/device.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/param.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/workqueue.h>
|
||||
|
@ -390,8 +391,35 @@ static struct {
|
|||
BQ27XXX_PROP(BQ27421, bq27421_battery_props),
|
||||
};
|
||||
|
||||
static DEFINE_MUTEX(bq27xxx_list_lock);
|
||||
static LIST_HEAD(bq27xxx_battery_devices);
|
||||
|
||||
static int poll_interval_param_set(const char *val, const struct kernel_param *kp)
|
||||
{
|
||||
struct bq27xxx_device_info *di;
|
||||
int ret;
|
||||
|
||||
ret = param_set_uint(val, kp);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
mutex_lock(&bq27xxx_list_lock);
|
||||
list_for_each_entry(di, &bq27xxx_battery_devices, list) {
|
||||
cancel_delayed_work_sync(&di->work);
|
||||
schedule_delayed_work(&di->work, 0);
|
||||
}
|
||||
mutex_unlock(&bq27xxx_list_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct kernel_param_ops param_ops_poll_interval = {
|
||||
.get = param_get_uint,
|
||||
.set = poll_interval_param_set,
|
||||
};
|
||||
|
||||
static unsigned int poll_interval = 360;
|
||||
module_param(poll_interval, uint, 0644);
|
||||
module_param_cb(poll_interval, ¶m_ops_poll_interval, &poll_interval, 0644);
|
||||
MODULE_PARM_DESC(poll_interval,
|
||||
"battery poll interval in seconds - 0 disables polling");
|
||||
|
||||
|
@ -972,6 +1000,10 @@ int bq27xxx_battery_setup(struct bq27xxx_device_info *di)
|
|||
|
||||
bq27xxx_battery_update(di);
|
||||
|
||||
mutex_lock(&bq27xxx_list_lock);
|
||||
list_add(&di->list, &bq27xxx_battery_devices);
|
||||
mutex_unlock(&bq27xxx_list_lock);
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(bq27xxx_battery_setup);
|
||||
|
@ -990,6 +1022,10 @@ void bq27xxx_battery_teardown(struct bq27xxx_device_info *di)
|
|||
|
||||
power_supply_unregister(di->bat);
|
||||
|
||||
mutex_lock(&bq27xxx_list_lock);
|
||||
list_del(&di->list);
|
||||
mutex_unlock(&bq27xxx_list_lock);
|
||||
|
||||
mutex_destroy(&di->lock);
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown);
|
||||
|
|
|
@ -58,6 +58,7 @@ struct bq27xxx_device_info {
|
|||
unsigned long last_update;
|
||||
struct delayed_work work;
|
||||
struct power_supply *bat;
|
||||
struct list_head list;
|
||||
struct mutex lock;
|
||||
u8 *regs;
|
||||
};
|
||||
|
|
Загрузка…
Ссылка в новой задаче