From 2853378b6eafd8b9e2f0e39ab599c93ce518b04d Mon Sep 17 00:00:00 2001 From: "Jett.Zhou" Date: Mon, 27 Feb 2012 15:44:20 +0100 Subject: mfd: Add ability to wake the system for 88pm860x For 88pm860x pmic, it can wake the system from low power mode by irq, its sub-devs like RTC and onkey can be enabled for this usage. Signed-off-by: Jett.Zhou Signed-off-by: Samuel Ortiz --- drivers/input/misc/88pm860x_onkey.c | 26 ++++++++++++++++++++++++++ drivers/mfd/88pm860x-i2c.c | 25 +++++++++++++++++++++++++ drivers/rtc/rtc-88pm860x.c | 27 +++++++++++++++++++++++++++ 3 files changed, 78 insertions(+) (limited to 'drivers') diff --git a/drivers/input/misc/88pm860x_onkey.c b/drivers/input/misc/88pm860x_onkey.c index f2e0cbc..f9ce183 100644 --- a/drivers/input/misc/88pm860x_onkey.c +++ b/drivers/input/misc/88pm860x_onkey.c @@ -105,6 +105,8 @@ static int __devinit pm860x_onkey_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, info); + device_init_wakeup(&pdev->dev, 1); + return 0; out_irq: @@ -129,10 +131,34 @@ static int __devexit pm860x_onkey_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int pm860x_onkey_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); + + if (device_may_wakeup(dev)) + chip->wakeup_flag |= 1 << PM8607_IRQ_ONKEY; + return 0; +} +static int pm860x_onkey_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); + + if (device_may_wakeup(dev)) + chip->wakeup_flag &= ~(1 << PM8607_IRQ_ONKEY); + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(pm860x_onkey_pm_ops, pm860x_onkey_suspend, pm860x_onkey_resume); + static struct platform_driver pm860x_onkey_driver = { .driver = { .name = "88pm860x-onkey", .owner = THIS_MODULE, + .pm = &pm860x_onkey_pm_ops, }, .probe = pm860x_onkey_probe, .remove = __devexit_p(pm860x_onkey_remove), diff --git a/drivers/mfd/88pm860x-i2c.c b/drivers/mfd/88pm860x-i2c.c index f93dd95..b2cfdc4 100644 --- a/drivers/mfd/88pm860x-i2c.c +++ b/drivers/mfd/88pm860x-i2c.c @@ -334,10 +334,35 @@ static int __devexit pm860x_remove(struct i2c_client *client) return 0; } +#ifdef CONFIG_PM_SLEEP +static int pm860x_suspend(struct device *dev) +{ + struct i2c_client *client = container_of(dev, struct i2c_client, dev); + struct pm860x_chip *chip = i2c_get_clientdata(client); + + if (device_may_wakeup(dev) && chip->wakeup_flag) + enable_irq_wake(chip->core_irq); + return 0; +} + +static int pm860x_resume(struct device *dev) +{ + struct i2c_client *client = container_of(dev, struct i2c_client, dev); + struct pm860x_chip *chip = i2c_get_clientdata(client); + + if (device_may_wakeup(dev) && chip->wakeup_flag) + disable_irq_wake(chip->core_irq); + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume); + static struct i2c_driver pm860x_driver = { .driver = { .name = "88PM860x", .owner = THIS_MODULE, + .pm = &pm860x_pm_ops, }, .probe = pm860x_probe, .remove = __devexit_p(pm860x_remove), diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c index f04761e..afee0e8 100644 --- a/drivers/rtc/rtc-88pm860x.c +++ b/drivers/rtc/rtc-88pm860x.c @@ -376,6 +376,9 @@ static int __devinit pm860x_rtc_probe(struct platform_device *pdev) INIT_DELAYED_WORK(&info->calib_work, calibrate_vrtc_work); schedule_delayed_work(&info->calib_work, VRTC_CALIB_INTERVAL); #endif /* VRTC_CALIBRATION */ + + device_init_wakeup(&pdev->dev, 1); + return 0; out_rtc: free_irq(info->irq, info); @@ -401,10 +404,34 @@ static int __devexit pm860x_rtc_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int pm860x_rtc_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); + + if (device_may_wakeup(dev)) + chip->wakeup_flag |= 1 << PM8607_IRQ_RTC; + return 0; +} +static int pm860x_rtc_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent); + + if (device_may_wakeup(dev)) + chip->wakeup_flag &= ~(1 << PM8607_IRQ_RTC); + return 0; +} +#endif + +static SIMPLE_DEV_PM_OPS(pm860x_rtc_pm_ops, pm860x_rtc_suspend, pm860x_rtc_resume); + static struct platform_driver pm860x_rtc_driver = { .driver = { .name = "88pm860x-rtc", .owner = THIS_MODULE, + .pm = &pm860x_rtc_pm_ops, }, .probe = pm860x_rtc_probe, .remove = __devexit_p(pm860x_rtc_remove), -- cgit v1.1