diff options
| author | Rupesh Kumar <rupesh.kumar@stericsson.com> | 2012-06-28 18:31:19 +0530 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2013-03-07 12:35:43 +0800 |
| commit | d4f510f6c3f579bac0dbeaa8dc7c2dc768c31786 (patch) | |
| tree | 3b20ee9b707e4e687ef9f4c2fbd1280eb8150ab1 /drivers/power/pm2301_charger.c | |
| parent | da9e83d496039458fe9863540cf52b3f9b450675 (diff) | |
| download | talos-obmc-linux-d4f510f6c3f579bac0dbeaa8dc7c2dc768c31786.tar.gz talos-obmc-linux-d4f510f6c3f579bac0dbeaa8dc7c2dc768c31786.zip | |
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>
Diffstat (limited to 'drivers/power/pm2301_charger.c')
| -rw-r--r-- | drivers/power/pm2301_charger.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c index ae647c41c535..b8eafc3850d0 100644 --- a/drivers/power/pm2301_charger.c +++ b/drivers/power/pm2301_charger.c @@ -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); 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*/ 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"); if (ret < 0) { 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); if (ret < 0) { @@ -1115,6 +1121,11 @@ static int pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, free_gpio: 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 power supply */ power_supply_unregister(&pm2->ac_chg.psy); @@ -1125,6 +1136,7 @@ free_charger_wq: destroy_workqueue(pm2->charger_wq); free_device_info: kfree(pm2); + return ret; } @@ -1135,6 +1147,9 @@ static int pm2xxx_wall_charger_remove(struct i2c_client *i2c_client) /* Disable AC charging */ pm2xxx_charger_ac_en(&pm2->ac_chg, false, 0, 0); + /* Disable wake by pm interrupt */ + disable_irq_wake(pm2->pdata->irq_number); + /* Disable interrupts */ free_irq(pm2->pdata->irq_number, pm2); |
