diff options
Diffstat (limited to 'drivers/rtc')
98 files changed, 1234 insertions, 936 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index b9838130a7b..9e3498bf302 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -313,6 +313,15 @@ config RTC_DRV_PALMAS This driver can also be built as a module. If so, the module will be called rtc-palma. +config RTC_DRV_PCF2127 + tristate "NXP PCF2127" + help + If you say yes here you get support for the NXP PCF2127/29 RTC + chips. + + This driver can also be built as a module. If so, the module + will be called rtc-pcf2127. + config RTC_DRV_PCF8523 tristate "NXP PCF8523" help @@ -1233,6 +1242,13 @@ config RTC_DRV_SNVS This driver can also be built as a module, if so, the module will be called "rtc-snvs". +config RTC_DRV_SIRFSOC + tristate "SiRFSOC RTC" + depends on ARCH_SIRF + help + Say "yes" here to support the real time clock on SiRF SOC chips. + This driver can also be built as a module called rtc-sirfsoc. + comment "HID Sensor RTC drivers" config RTC_DRV_HID_SENSOR_TIME diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index c33f86f1a69..d3b4488f48f 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -83,6 +83,7 @@ obj-$(CONFIG_RTC_DRV_NUC900) += rtc-nuc900.o obj-$(CONFIG_RTC_DRV_OMAP) += rtc-omap.o obj-$(CONFIG_RTC_DRV_PALMAS) += rtc-palmas.o obj-$(CONFIG_RTC_DRV_PCAP) += rtc-pcap.o +obj-$(CONFIG_RTC_DRV_PCF2127) += rtc-pcf2127.o obj-$(CONFIG_RTC_DRV_PCF8523) += rtc-pcf8523.o obj-$(CONFIG_RTC_DRV_PCF8563) += rtc-pcf8563.o obj-$(CONFIG_RTC_DRV_PCF8583) += rtc-pcf8583.o @@ -128,3 +129,4 @@ obj-$(CONFIG_RTC_DRV_VT8500) += rtc-vt8500.o obj-$(CONFIG_RTC_DRV_WM831X) += rtc-wm831x.o obj-$(CONFIG_RTC_DRV_WM8350) += rtc-wm8350.o obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o +obj-$(CONFIG_RTC_DRV_SIRFSOC) += rtc-sirfsoc.o diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 66385402d20..02426812beb 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -38,7 +38,7 @@ static void rtc_device_release(struct device *dev) int rtc_hctosys_ret = -ENODEV; #endif -#if defined(CONFIG_PM) && defined(CONFIG_RTC_HCTOSYS_DEVICE) +#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_RTC_HCTOSYS_DEVICE) /* * On suspend(), measure the delta between one RTC and the * system's wall clock; restore it on resume(). @@ -47,7 +47,7 @@ int rtc_hctosys_ret = -ENODEV; static struct timespec old_rtc, old_system, old_delta; -static int rtc_suspend(struct device *dev, pm_message_t mesg) +static int rtc_suspend(struct device *dev) { struct rtc_device *rtc = to_rtc_device(dev); struct rtc_time tm; @@ -135,9 +135,10 @@ static int rtc_resume(struct device *dev) return 0; } +static SIMPLE_DEV_PM_OPS(rtc_class_dev_pm_ops, rtc_suspend, rtc_resume); +#define RTC_CLASS_DEV_PM_OPS (&rtc_class_dev_pm_ops) #else -#define rtc_suspend NULL -#define rtc_resume NULL +#define RTC_CLASS_DEV_PM_OPS NULL #endif @@ -336,8 +337,7 @@ static int __init rtc_init(void) pr_err("couldn't create class\n"); return PTR_ERR(rtc_class); } - rtc_class->suspend = rtc_suspend; - rtc_class->resume = rtc_resume; + rtc_class->pm = RTC_CLASS_DEV_PM_OPS; rtc_dev_init(); rtc_sysfs_init(rtc_class); return 0; diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 42bd57da239..72c5cdbe079 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -109,9 +109,9 @@ int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs) err = rtc->ops->set_time(rtc->dev.parent, &new); } - } - else + } else { err = -EINVAL; + } mutex_unlock(&rtc->ops_lock); /* A timer might have just expired */ @@ -367,14 +367,14 @@ int rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) err = mutex_lock_interruptible(&rtc->ops_lock); if (err) return err; - if (rtc->aie_timer.enabled) { + if (rtc->aie_timer.enabled) rtc_timer_remove(rtc, &rtc->aie_timer); - } + rtc->aie_timer.node.expires = rtc_tm_to_ktime(alarm->time); rtc->aie_timer.period = ktime_set(0, 0); - if (alarm->enabled) { + if (alarm->enabled) err = rtc_timer_enqueue(rtc, &rtc->aie_timer); - } + mutex_unlock(&rtc->ops_lock); return err; } @@ -698,9 +698,9 @@ retry: spin_lock_irqsave(&rtc->irq_task_lock, flags); if (rtc->irq_task != NULL && task == NULL) err = -EBUSY; - if (rtc->irq_task != task) + else if (rtc->irq_task != task) err = -EACCES; - if (!err) { + else { if (rtc_update_hrtimer(rtc, enabled) < 0) { spin_unlock_irqrestore(&rtc->irq_task_lock, flags); cpu_relax(); @@ -734,9 +734,9 @@ retry: spin_lock_irqsave(&rtc->irq_task_lock, flags); if (rtc->irq_task != NULL && task == NULL) err = -EBUSY; - if (rtc->irq_task != task) + else if (rtc->irq_task != task) err = -EACCES; - if (!err) { + else { rtc->irq_freq = freq; if (rtc->pie_enabled && rtc_update_hrtimer(rtc, 1) < 0) { spin_unlock_irqrestore(&rtc->irq_task_lock, flags); @@ -891,7 +891,7 @@ again: * * Kernel interface to initializing an rtc_timer. */ -void rtc_timer_init(struct rtc_timer *timer, void (*f)(void* p), void* data) +void rtc_timer_init(struct rtc_timer *timer, void (*f)(void *p), void *data) { timerqueue_init(&timer->node); timer->enabled = 0; @@ -907,7 +907,7 @@ void rtc_timer_init(struct rtc_timer *timer, void (*f)(void* p), void* data) * * Kernel interface to set an rtc_timer */ -int rtc_timer_start(struct rtc_device *rtc, struct rtc_timer* timer, +int rtc_timer_start(struct rtc_device *rtc, struct rtc_timer *timer, ktime_t expires, ktime_t period) { int ret = 0; @@ -930,7 +930,7 @@ int rtc_timer_start(struct rtc_device *rtc, struct rtc_timer* timer, * * Kernel interface to cancel an rtc_timer */ -int rtc_timer_cancel(struct rtc_device *rtc, struct rtc_timer* timer) +int rtc_timer_cancel(struct rtc_device *rtc, struct rtc_timer *timer) { int ret = 0; mutex_lock(&rtc->ops_lock); diff --git a/drivers/rtc/rtc-88pm80x.c b/drivers/rtc/rtc-88pm80x.c index f3742f364eb..354c937a586 100644 --- a/drivers/rtc/rtc-88pm80x.c +++ b/drivers/rtc/rtc-88pm80x.c @@ -345,7 +345,6 @@ out: static int pm80x_rtc_remove(struct platform_device *pdev) { struct pm80x_rtc_info *info = platform_get_drvdata(pdev); - platform_set_drvdata(pdev, NULL); pm80x_free_irq(info->chip, info->irq, info); return 0; } diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c index 0f2b91bfee3..4e30c85728e 100644 --- a/drivers/rtc/rtc-88pm860x.c +++ b/drivers/rtc/rtc-88pm860x.c @@ -418,7 +418,6 @@ static int pm860x_rtc_remove(struct platform_device *pdev) pm860x_set_bits(info->i2c, PM8607_MEAS_EN2, MEAS2_VRTC, 0); #endif /* VRTC_CALIBRATION */ - platform_set_drvdata(pdev, NULL); return 0; } diff --git a/drivers/rtc/rtc-ab3100.c b/drivers/rtc/rtc-ab3100.c index 47a4f2c4d30..ff435343ba9 100644 --- a/drivers/rtc/rtc-ab3100.c +++ b/drivers/rtc/rtc-ab3100.c @@ -240,18 +240,11 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev) return 0; } -static int __exit ab3100_rtc_remove(struct platform_device *pdev) -{ - platform_set_drvdata(pdev, NULL); - return 0; -} - static struct platform_driver ab3100_rtc_driver = { .driver = { .name = "ab3100-rtc", .owner = THIS_MODULE, }, - .remove = __exit_p(ab3100_rtc_remove), }; module_platform_driver_probe(ab3100_rtc_driver, ab3100_rtc_probe); diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c index 63cfa314a39..727e2f5d14d 100644 --- a/drivers/rtc/rtc-ab8500.c +++ b/drivers/rtc/rtc-ab8500.c @@ -35,6 +35,10 @@ #define AB8500_RTC_FORCE_BKUP_REG 0x0D #define AB8500_RTC_CALIB_REG 0x0E #define AB8500_RTC_SWITCH_STAT_REG 0x0F +#define AB8540_RTC_ALRM_SEC 0x22 +#define AB8540_RTC_ALRM_MIN_LOW_REG 0x23 +#define AB8540_RTC_ALRM_MIN_MID_REG 0x24 +#define AB8540_RTC_ALRM_MIN_HI_REG 0x25 /* RtcReadRequest bits */ #define RTC_READ_REQUEST 0x01 @@ -58,6 +62,11 @@ static const u8 ab8500_rtc_alarm_regs[] = { AB8500_RTC_ALRM_MIN_LOW_REG }; +static const u8 ab8540_rtc_alarm_regs[] = { + AB8540_RTC_ALRM_MIN_HI_REG, AB8540_RTC_ALRM_MIN_MID_REG, + AB8540_RTC_ALRM_MIN_LOW_REG, AB8540_RTC_ALRM_SEC +}; + /* Calculate the seconds from 1970 to 01-01-2000 00:00:00 */ static unsigned long get_elapsed_seconds(int year) { @@ -267,6 +276,42 @@ static int ab8500_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) return ab8500_rtc_irq_enable(dev, alarm->enabled); } +static int ab8540_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) +{ + int retval, i; + unsigned char buf[ARRAY_SIZE(ab8540_rtc_alarm_regs)]; + unsigned long mins, secs = 0; + + if (alarm->time.tm_year < (AB8500_RTC_EPOCH - 1900)) { + dev_dbg(dev, "year should be equal to or greater than %d\n", + AB8500_RTC_EPOCH); + return -EINVAL; + } + + /* Get the number of seconds since 1970 */ + rtc_tm_to_time(&alarm->time, &secs); + + /* + * Convert it to the number of seconds since 01-01-2000 00:00:00 + */ + secs -= get_elapsed_seconds(AB8500_RTC_EPOCH); + mins = secs / 60; + + buf[3] = secs % 60; + buf[2] = mins & 0xFF; + buf[1] = (mins >> 8) & 0xFF; + buf[0] = (mins >> 16) & 0xFF; + + /* Set the alarm time */ + for (i = 0; i < ARRAY_SIZE(ab8540_rtc_alarm_regs); i++) { + retval = abx500_set_register_interruptible(dev, AB8500_RTC, + ab8540_rtc_alarm_regs[i], buf[i]); + if (retval < 0) + return retval; + } + + return ab8500_rtc_irq_enable(dev, alarm->enabled); +} static int ab8500_rtc_set_calibration(struct device *dev, int calibration) { @@ -389,8 +434,22 @@ static const struct rtc_class_ops ab8500_rtc_ops = { .alarm_irq_enable = ab8500_rtc_irq_enable, }; +static const struct rtc_class_ops ab8540_rtc_ops = { + .read_time = ab8500_rtc_read_time, + .set_time = ab8500_rtc_set_time, + .read_alarm = ab8500_rtc_read_alarm, + .set_alarm = ab8540_rtc_set_alarm, + .alarm_irq_enable = ab8500_rtc_irq_enable, +}; + +static struct platform_device_id ab85xx_rtc_ids[] = { + { "ab8500-rtc", (kernel_ulong_t)&ab8500_rtc_ops, }, + { "ab8540-rtc", (kernel_ulong_t)&ab8540_rtc_ops, }, +}; + static int ab8500_rtc_probe(struct platform_device *pdev) { + const struct platform_device_id *platid = platform_get_device_id(pdev); int err; struct rtc_device *rtc; u8 rtc_ctrl; @@ -423,7 +482,8 @@ static int ab8500_rtc_probe(struct platform_device *pdev) device_init_wakeup(&pdev->dev, true); rtc = devm_rtc_device_register(&pdev->dev, "ab8500-rtc", - &ab8500_rtc_ops, THIS_MODULE); + (struct rtc_class_ops *)platid->driver_data, + THIS_MODULE); if (IS_ERR(rtc)) { dev_err(&pdev->dev, "Registration failed\n"); err = PTR_ERR(rtc); @@ -451,8 +511,6 @@ static int ab8500_rtc_remove(struct platform_device *pdev) { ab8500_sysfs_rtc_unregister(&pdev->dev); - platform_set_drvdata(pdev, NULL); - return 0; } @@ -463,6 +521,7 @@ static struct platform_driver ab8500_rtc_driver = { }, .probe = ab8500_rtc_probe, .remove = ab8500_rtc_remove, + .id_table = ab85xx_rtc_ids, }; module_platform_driver(ab8500_rtc_driver); diff --git a/drivers/rtc/rtc-at32ap700x.c b/drivers/rtc/rtc-at32ap700x.c index f47fbb5eee8..3161ab5263e 100644 --- a/drivers/rtc/rtc-at32ap700x.c +++ b/drivers/rtc/rtc-at32ap700x.c @@ -141,7 +141,7 @@ static int at32_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) spin_lock_irq(&rtc->lock); - if(enabled) { + if (enabled) { if (rtc_readl(rtc, VAL) > rtc->alarm_time) { ret = -EINVAL; goto out; @@ -212,23 +212,20 @@ static int __init at32_rtc_probe(struct platform_device *pdev) regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!regs) { dev_dbg(&pdev->dev, "no mmio resource defined\n"); - ret = -ENXIO; - goto out; + return -ENXIO; } |