forked from Minki/linux
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: Rupesh Kumar <rupesh.kumar@stericsson.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Philippe LANGLAIS <philippe.langlais@stericsson.com>
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@ -1072,6 +1072,12 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
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pm2xxx_charger_irq[0].name, pm2->pdata->irq_number, ret);
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goto unregister_pm2xxx_charger;
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}
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/* pm interrupt can wake up system */
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ret = enable_irq_wake(pm2->pdata->irq_number);
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if (ret) {
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dev_err(pm2->dev, "failed to set irq wake\n");
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goto unregister_pm2xxx_interrupt;
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}
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/*Initialize lock*/
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mutex_init(&pm2->lock);
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@ -1084,7 +1090,7 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
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ret = gpio_request(pm2->lpn_pin, "pm2301_lpm_gpio");
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if (ret < 0) {
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dev_err(pm2->dev, "pm2301_lpm_gpio request failed\n");
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goto unregister_pm2xxx_charger;
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goto disable_pm2_irq_wake;
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}
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ret = gpio_direction_output(pm2->lpn_pin, 0);
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if (ret < 0) {
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@ -1115,6 +1121,11 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client,
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free_gpio:
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gpio_free(pm2->lpn_pin);
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disable_pm2_irq_wake:
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disable_irq_wake(pm2->pdata->irq_number);
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unregister_pm2xxx_interrupt:
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/* disable interrupt */
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free_irq(pm2->pdata->irq_number, pm2);
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unregister_pm2xxx_charger:
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/* unregister power supply */
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power_supply_unregister(&pm2->ac_chg.psy);
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@ -1125,6 +1136,7 @@ free_charger_wq:
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destroy_workqueue(pm2->charger_wq);
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free_device_info:
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kfree(pm2);
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return ret;
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}
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@ -1135,6 +1147,9 @@ static int pm2xxx_wall_charger_remove(struct i2c_client *i2c_client)
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/* Disable AC charging */
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pm2xxx_charger_ac_en(&pm2->ac_chg, false, 0, 0);
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/* Disable wake by pm interrupt */
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disable_irq_wake(pm2->pdata->irq_number);
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/* Disable interrupts */
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free_irq(pm2->pdata->irq_number, pm2);
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