diff options
Diffstat (limited to 'drivers/rtc/rtc-tps65910.c')
| -rw-r--r-- | drivers/rtc/rtc-tps65910.c | 59 |
1 files changed, 27 insertions, 32 deletions
diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c index 073108dcf9e..8bd8115329b 100644 --- a/drivers/rtc/rtc-tps65910.c +++ b/drivers/rtc/rtc-tps65910.c @@ -22,13 +22,13 @@ #include <linux/rtc.h> #include <linux/bcd.h> #include <linux/platform_device.h> +#include <linux/pm_runtime.h> #include <linux/interrupt.h> #include <linux/mfd/tps65910.h> struct tps65910_rtc { struct rtc_device *rtc; - /* To store the list of enabled interrupts */ - u32 irqstat; + int irq; }; /* Total number of RTC registers needed to set time*/ @@ -222,7 +222,7 @@ static const struct rtc_class_ops tps65910_rtc_ops = { .alarm_irq_enable = tps65910_rtc_alarm_irq_enable, }; -static int __devinit tps65910_rtc_probe(struct platform_device *pdev) +static int tps65910_rtc_probe(struct platform_device *pdev) { struct tps65910 *tps65910 = NULL; struct tps65910_rtc *tps_rtc = NULL; @@ -247,6 +247,13 @@ static int __devinit tps65910_rtc_probe(struct platform_device *pdev) return ret; dev_dbg(&pdev->dev, "Enabling rtc-tps65910.\n"); + + /* Enable RTC digital power domain */ + ret = regmap_update_bits(tps65910->regmap, TPS65910_DEVCTRL, + DEVCTRL_RTC_PWDN_MASK, 0 << DEVCTRL_RTC_PWDN_SHIFT); + if (ret < 0) + return ret; + rtc_reg = TPS65910_RTC_CTRL_STOP_RTC; ret = regmap_write(tps65910->regmap, TPS65910_RTC_CTRL, rtc_reg); if (ret < 0) @@ -260,13 +267,14 @@ static int __devinit tps65910_rtc_probe(struct platform_device *pdev) } ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, - tps65910_rtc_interrupt, IRQF_TRIGGER_LOW, - "rtc-tps65910", &pdev->dev); + tps65910_rtc_interrupt, IRQF_TRIGGER_LOW | IRQF_EARLY_RESUME, + dev_name(&pdev->dev), &pdev->dev); if (ret < 0) { dev_err(&pdev->dev, "IRQ is not free.\n"); return ret; } - device_init_wakeup(&pdev->dev, 1); + tps_rtc->irq = irq; + device_set_wakeup_capable(&pdev->dev, 1); tps_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, &tps65910_rtc_ops, THIS_MODULE); @@ -285,7 +293,7 @@ static int __devinit tps65910_rtc_probe(struct platform_device *pdev) * Disable tps65910 RTC interrupts. * Sets status flag to free. */ -static int __devexit tps65910_rtc_remove(struct platform_device *pdev) +static int tps65910_rtc_remove(struct platform_device *pdev) { /* leave rtc running, but disable irqs */ struct tps65910_rtc *tps_rtc = platform_get_drvdata(pdev); @@ -297,49 +305,36 @@ static int __devexit tps65910_rtc_remove(struct platform_device *pdev) } #ifdef CONFIG_PM_SLEEP - static int tps65910_rtc_suspend(struct device *dev) { - struct tps65910 *tps = dev_get_drvdata(dev->parent); - u8 alarm = TPS65910_RTC_INTERRUPTS_IT_ALARM; - int ret; - - /* Store current list of enabled interrupts*/ - ret = regmap_read(tps->regmap, TPS65910_RTC_INTERRUPTS, - &tps->rtc->irqstat); - if (ret < 0) - return ret; + struct tps65910_rtc *tps_rtc = dev_get_drvdata(dev); - /* Enable RTC ALARM interrupt only */ - return regmap_write(tps->regmap, TPS65910_RTC_INTERRUPTS, alarm); + if (device_may_wakeup(dev)) + enable_irq_wake(tps_rtc->irq); + return 0; } static int tps65910_rtc_resume(struct device *dev) { - struct tps65910 *tps = dev_get_drvdata(dev->parent); + struct tps65910_rtc *tps_rtc = dev_get_drvdata(dev); - /* Restore list of enabled interrupts before suspend */ - return regmap_write(tps->regmap, TPS65910_RTC_INTERRUPTS, - tps->rtc->irqstat); + if (device_may_wakeup(dev)) + disable_irq_wake(tps_rtc->irq); + return 0; } +#endif static const struct dev_pm_ops tps65910_rtc_pm_ops = { - .suspend = tps65910_rtc_suspend, - .resume = tps65910_rtc_resume, + SET_SYSTEM_SLEEP_PM_OPS(tps65910_rtc_suspend, tps65910_rtc_resume) }; -#define DEV_PM_OPS (&tps65910_rtc_pm_ops) -#else -#define DEV_PM_OPS NULL -#endif - static struct platform_driver tps65910_rtc_driver = { .probe = tps65910_rtc_probe, - .remove = __devexit_p(tps65910_rtc_remove), + .remove = tps65910_rtc_remove, .driver = { .owner = THIS_MODULE, .name = "tps65910-rtc", - .pm = DEV_PM_OPS, + .pm = &tps65910_rtc_pm_ops, }, }; |