diff options
| author | Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | 2013-12-10 23:47:16 +0100 |
|---|---|---|
| committer | Anton Vorontsov <anton@enomsg.org> | 2013-12-24 03:54:03 +0100 |
| commit | 4ea81266010ae41a48c7ce393335dfe241931209 (patch) | |
| tree | 05c1d77c120499105652ecca7094bcf8ce51367f /drivers/power/gpio-charger.c | |
| parent | power_supply: Add charger support for Maxim 14577 (diff) | |
| download | linux-4ea81266010ae41a48c7ce393335dfe241931209.tar.xz linux-4ea81266010ae41a48c7ce393335dfe241931209.zip | |
gpio-charger: Support wakeup events
Add support for using gpio-charger IRQ as a wakeup event.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
Diffstat (limited to 'drivers/power/gpio-charger.c')
| -rw-r--r-- | drivers/power/gpio-charger.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/power/gpio-charger.c b/drivers/power/gpio-charger.c index 4e858a23568f..a0024b252197 100644 --- a/drivers/power/gpio-charger.c +++ b/drivers/power/gpio-charger.c @@ -28,6 +28,7 @@ struct gpio_charger { const struct gpio_charger_platform_data *pdata; unsigned int irq; + bool wakeup_enabled; struct power_supply charger; }; @@ -136,6 +137,8 @@ static int gpio_charger_probe(struct platform_device *pdev) platform_set_drvdata(pdev, gpio_charger); + device_init_wakeup(&pdev->dev, 1); + return 0; err_gpio_free: @@ -159,18 +162,32 @@ static int gpio_charger_remove(struct platform_device *pdev) } #ifdef CONFIG_PM_SLEEP +static int gpio_charger_suspend(struct device *dev) +{ + struct gpio_charger *gpio_charger = dev_get_drvdata(dev); + + if (device_may_wakeup(dev)) + gpio_charger->wakeup_enabled = + enable_irq_wake(gpio_charger->irq); + + return 0; +} + static int gpio_charger_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct gpio_charger *gpio_charger = platform_get_drvdata(pdev); + if (gpio_charger->wakeup_enabled) + disable_irq_wake(gpio_charger->irq); power_supply_changed(&gpio_charger->charger); return 0; } #endif -static SIMPLE_DEV_PM_OPS(gpio_charger_pm_ops, NULL, gpio_charger_resume); +static SIMPLE_DEV_PM_OPS(gpio_charger_pm_ops, + gpio_charger_suspend, gpio_charger_resume); static struct platform_driver gpio_charger_driver = { .probe = gpio_charger_probe, |