diff options
| author | Tom Cherry <tcherry@nvidia.com> | 2011-02-18 13:38:48 -0800 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-03-03 10:39:42 -0800 |
| commit | 715a591214008391fe40fccca49ba133ac89dbf5 (patch) | |
| tree | dab49b2588b097cf05b83357d9939e7a9d56666d /drivers/rtc | |
| parent | 4c5b7132e5321f577041945c95990d52bacd3003 (diff) | |
max8907c rtc: support wake alarms
This change allows rtc alarms to wake the system.
Change-Id: I2a7212fe7cc02b08893fe3a37824b0d39a9f5386
Reviewed-on: http://git-master/r/20101
Tested-by: Thomas Cherry <tcherry@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-max8907c.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-max8907c.c b/drivers/rtc/rtc-max8907c.c index aa48f4bb2497..936f133f67c1 100644 --- a/drivers/rtc/rtc-max8907c.c +++ b/drivers/rtc/rtc-max8907c.c @@ -237,10 +237,14 @@ static int __devinit max8907c_rtc_probe(struct platform_device *pdev) goto out_rtc; } + max8907c_set_bits(chip->i2c_power, MAX8907C_REG_SYSENSEL, 0x2, 0x2); + dev_set_drvdata(&pdev->dev, info); platform_set_drvdata(pdev, info); + device_init_wakeup(&pdev->dev, 1); + return 0; out_rtc: free_irq(chip->irq_base + MAX8907C_IRQ_RTC_ALARM0, info); @@ -263,6 +267,28 @@ static int __devexit max8907c_rtc_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM +static int max8907c_rtc_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct device *dev=&pdev->dev; + struct max8907c_rtc_info *info = platform_get_drvdata(pdev); + + if (device_may_wakeup(dev)) + enable_irq_wake(info->chip->irq_base + MAX8907C_IRQ_RTC_ALARM0); + return 0; +} + +static int max8907c_rtc_resume(struct platform_device *pdev) +{ + struct device *dev=&pdev->dev; + struct max8907c_rtc_info *info = platform_get_drvdata(pdev); + + if (device_may_wakeup(dev)) + disable_irq_wake(info->chip->irq_base + MAX8907C_IRQ_RTC_ALARM0); + return 0; +} +#endif + static struct platform_driver max8907c_rtc_driver = { .driver = { .name = "max8907c-rtc", @@ -270,6 +296,10 @@ static struct platform_driver max8907c_rtc_driver = { }, .probe = max8907c_rtc_probe, .remove = __devexit_p(max8907c_rtc_remove), +#ifdef CONFIG_PM + .suspend = max8907c_rtc_suspend, + .resume = max8907c_rtc_resume, +#endif }; static int __init max8907c_rtc_init(void) |