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| author | Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | 2015-01-15 05:00:38 +0300 |
|---|---|---|
| committer | Sebastian Reichel <sre@kernel.org> | 2015-01-20 13:58:32 +0100 |
| commit | f1300e7f6211139da9bc1ebf685f244fbd0ee58d (patch) | |
| tree | c60ddd538394be34a633d11a2605a167167db942 /drivers | |
| parent | faeed51bb65ce0241052d8dc24ac331ade12e976 (diff) | |
| download | linux-stable-f1300e7f6211139da9bc1ebf685f244fbd0ee58d.tar.gz linux-stable-f1300e7f6211139da9bc1ebf685f244fbd0ee58d.tar.bz2 linux-stable-f1300e7f6211139da9bc1ebf685f244fbd0ee58d.zip | |
power: collie_battery: support generating wakeup event
Teach collie_battery driver to communicate to the kernel that it can
generate wakeup events. Handle enabling/disabling wakeup on battery full
event in suspend/resume callbacks.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/collie_battery.c | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c index d02ae02a7590..594e4dbc2d51 100644 --- a/drivers/power/collie_battery.c +++ b/drivers/power/collie_battery.c @@ -26,6 +26,7 @@ static DEFINE_MUTEX(bat_lock); /* protects gpio pins */ static struct work_struct bat_work; static struct ucb1x00 *ucb; +static int wakeup_enabled; struct collie_bat { int status; @@ -291,11 +292,21 @@ static int collie_bat_suspend(struct ucb1x00_dev *dev) { /* flush all pending status updates */ flush_work(&bat_work); + + if (device_may_wakeup(&dev->ucb->dev) && + collie_bat_main.status == POWER_SUPPLY_STATUS_CHARGING) + wakeup_enabled = !enable_irq_wake(gpio_to_irq(COLLIE_GPIO_CO)); + else + wakeup_enabled = 0; + return 0; } static int collie_bat_resume(struct ucb1x00_dev *dev) { + if (wakeup_enabled) + disable_irq_wake(gpio_to_irq(COLLIE_GPIO_CO)); + /* things may have changed while we were away */ schedule_work(&bat_work); return 0; @@ -334,10 +345,15 @@ static int collie_bat_probe(struct ucb1x00_dev *dev) collie_bat_gpio_isr, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "main full", &collie_bat_main); - if (!ret) { - schedule_work(&bat_work); - return 0; - } + if (ret) + goto err_irq; + + device_init_wakeup(&ucb->dev, 1); + schedule_work(&bat_work); + + return 0; + +err_irq: power_supply_unregister(&collie_bat_bu.psy); err_psy_reg_bu: power_supply_unregister(&collie_bat_main.psy); |