//[*]--------------------------------------------------------------------------------------------------[*]
static int bh1780_suspend(struct i2c_client *client, pm_message_t mesg)
{
struct bh1780_data *bh1780 = i2c_get_clientdata(client);
if(bh1780->enabled) cancel_delayed_work_sync(&bh1780->work);
bh1780_power_down(bh1780);
return 0;
}
static int bh1780_suspend(struct i2c_client *client, pm_message_t mesg)
{
struct bh1780_data *bh1780 = i2c_get_clientdata(client);
mutex_lock(&bh1780->enable_mutex);
if (bh1780_get_enable(&client->dev)) {
cancel_delayed_work_sync(&bh1780->work);
bh1780_power_down(bh1780);
}
mutex_unlock(&bh1780->enable_mutex);
return 0;
}
static void bh1780_set_enable(struct device *dev, int enable)
{
struct i2c_client *client = to_i2c_client(dev);
struct bh1780_data *bh1780 = i2c_get_clientdata(client);
int delay = atomic_read(&bh1780->delay);
mutex_lock(&bh1780->enable_mutex);
if (enable) { /* enable if state will be changed */
if (!atomic_cmpxchg(&bh1780->enable, 0, 1)) {
bh1780_power_up(bh1780);
schedule_delayed_work(&bh1780->work,
delay_to_jiffies(delay) + 1);
}
} else { /* disable if state will be changed */
if (atomic_cmpxchg(&bh1780->enable, 1, 0)) {
cancel_delayed_work_sync(&bh1780->work);
bh1780_power_down(bh1780);
}
}
atomic_set(&bh1780->enable, enable);
mutex_unlock(&bh1780->enable_mutex);
}
