diff options
Diffstat (limited to 'drivers/rtc/rtc-max77686.c')
| -rw-r--r-- | drivers/rtc/rtc-max77686.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c index 03ebcf1c0f3d..d51cc12114cb 100644 --- a/drivers/rtc/rtc-max77686.c +++ b/drivers/rtc/rtc-max77686.c @@ -805,17 +805,36 @@ static int max77686_rtc_remove(struct platform_device *pdev) #ifdef CONFIG_PM_SLEEP static int max77686_rtc_suspend(struct device *dev) { + struct max77686_rtc_info *info = dev_get_drvdata(dev); + int ret = 0; + if (device_may_wakeup(dev)) { struct max77686_rtc_info *info = dev_get_drvdata(dev); - return enable_irq_wake(info->virq); + ret = enable_irq_wake(info->virq); } - return 0; + /* + * If the main IRQ (not virtual) is the parent IRQ, then it must be + * disabled during suspend because if it happens while suspended it + * will be handled before resuming I2C. + * + * Since Main IRQ is shared, all its users should disable it to be sure + * it won't fire while one of them is still suspended. + */ + if (!info->drv_data->rtc_irq_from_platform) + disable_irq(info->rtc_irq); + + return ret; } static int max77686_rtc_resume(struct device *dev) { + struct max77686_rtc_info *info = dev_get_drvdata(dev); + + if (!info->drv_data->rtc_irq_from_platform) + enable_irq(info->rtc_irq); + if (device_may_wakeup(dev)) { struct max77686_rtc_info *info = dev_get_drvdata(dev); |