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Commit d4f510f6 authored by Rupesh Kumar's avatar Rupesh Kumar Committed by Lee Jones
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pm2301-charger: Wake system when ext charger is plugged-in 



When in suspend state, upon plug-in of external AC charger the
device needs to wake-up and charging operation started.

Signed-off-by: default avatarRupesh Kumar <rupesh.kumar@stericsson.com>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Reviewed-by: default avatarPhilippe LANGLAIS <philippe.langlais@stericsson.com>
parent da9e83d4

drivers/power/pm2301_charger.c

+16 −1
Original line number Original line Diff line number Diff line
@@ -1072,6 +1072,12 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, 
		pm2xxx_charger_irq[0].name, pm2->pdata->irq_number, ret);

		pm2xxx_charger_irq[0].name, pm2->pdata->irq_number, ret);

		goto unregister_pm2xxx_charger;

		goto unregister_pm2xxx_charger;

	}

	}

	/* pm interrupt can wake up system */

	ret = enable_irq_wake(pm2->pdata->irq_number);

	if (ret) {

		dev_err(pm2->dev, "failed to set irq wake\n");

		goto unregister_pm2xxx_interrupt;

	}





	/*Initialize lock*/

	/*Initialize lock*/

	mutex_init(&pm2->lock);

	mutex_init(&pm2->lock);
@@ -1084,7 +1090,7 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, 
	ret = gpio_request(pm2->lpn_pin, "pm2301_lpm_gpio");

	ret = gpio_request(pm2->lpn_pin, "pm2301_lpm_gpio");

	if (ret < 0) {

	if (ret < 0) {

		dev_err(pm2->dev, "pm2301_lpm_gpio request failed\n");

		dev_err(pm2->dev, "pm2301_lpm_gpio request failed\n");

		goto unregister_pm2xxx_charger;

		goto disable_pm2_irq_wake;

	}

	}

	ret = gpio_direction_output(pm2->lpn_pin, 0);

	ret = gpio_direction_output(pm2->lpn_pin, 0);

	if (ret < 0) {

	if (ret < 0) {
@@ -1115,6 +1121,11 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, 




free_gpio:

free_gpio:

	gpio_free(pm2->lpn_pin);

	gpio_free(pm2->lpn_pin);

disable_pm2_irq_wake:

	disable_irq_wake(pm2->pdata->irq_number);

unregister_pm2xxx_interrupt:

	/* disable interrupt */

	free_irq(pm2->pdata->irq_number, pm2);

unregister_pm2xxx_charger:

unregister_pm2xxx_charger:

	/* unregister power supply */

	/* unregister power supply */

	power_supply_unregister(&pm2->ac_chg.psy);

	power_supply_unregister(&pm2->ac_chg.psy);
@@ -1125,6 +1136,7 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, 
	destroy_workqueue(pm2->charger_wq);

	destroy_workqueue(pm2->charger_wq);

free_device_info:

free_device_info:

	kfree(pm2);

	kfree(pm2);



	return ret;

	return ret;

}

}
@@ -1135,6 +1147,9 @@ static int pm2xxx_wall_charger_remove(struct i2c_client *i2c_client) 
	/* Disable AC charging */

	/* Disable AC charging */

	pm2xxx_charger_ac_en(&pm2->ac_chg, false, 0, 0);

	pm2xxx_charger_ac_en(&pm2->ac_chg, false, 0, 0);





	/* Disable wake by pm interrupt */

	disable_irq_wake(pm2->pdata->irq_number);



	/* Disable interrupts */

	/* Disable interrupts */

	free_irq(pm2->pdata->irq_number, pm2);

	free_irq(pm2->pdata->irq_number, pm2);