diff options
Diffstat (limited to 'drivers/rtc')
45 files changed, 618 insertions, 1181 deletions
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c index 9583cbcc6b79..09b4437b3e61 100644 --- a/drivers/rtc/class.c +++ b/drivers/rtc/class.c @@ -117,6 +117,7 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev, struct module *owner) { struct rtc_device *rtc; + struct rtc_wkalrm alrm; int id, err; if (idr_pre_get(&rtc_idr, GFP_KERNEL) == 0) { @@ -143,6 +144,7 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev, rtc->id = id; rtc->ops = ops; rtc->owner = owner; + rtc->irq_freq = 1; rtc->max_user_freq = 64; rtc->dev.parent = dev; rtc->dev.class = rtc_class; @@ -165,6 +167,12 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev, rtc->pie_timer.function = rtc_pie_update_irq; rtc->pie_enabled = 0; + /* Check to see if there is an ALARM already set in hw */ + err = __rtc_read_alarm(rtc, &alrm); + + if (!err && !rtc_valid_tm(&alrm.time)) + rtc_set_alarm(rtc, &alrm); + strlcpy(rtc->name, name, RTC_DEVICE_NAME_SIZE); dev_set_name(&rtc->dev, "rtc%d", id); diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 90384b9f6b2c..8ec6b069a7f5 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -16,6 +16,9 @@ #include <linux/log2.h> #include <linux/workqueue.h> +static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer); +static void rtc_timer_remove(struct rtc_device *rtc, struct rtc_timer *timer); + static int __rtc_read_time(struct rtc_device *rtc, struct rtc_time *tm) { int err; @@ -113,6 +116,186 @@ int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs) } EXPORT_SYMBOL_GPL(rtc_set_mmss); +static int rtc_read_alarm_internal(struct rtc_device *rtc, struct rtc_wkalrm *alarm) +{ + int err; + + err = mutex_lock_interruptible(&rtc->ops_lock); + if (err) + return err; + + if (rtc->ops == NULL) + err = -ENODEV; + else if (!rtc->ops->read_alarm) + err = -EINVAL; + else { + memset(alarm, 0, sizeof(struct rtc_wkalrm)); + err = rtc->ops->read_alarm(rtc->dev.parent, alarm); + } + + mutex_unlock(&rtc->ops_lock); + return err; +} + +int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) +{ + int err; + struct rtc_time before, now; + int first_time = 1; + unsigned long t_now, t_alm; + enum { none, day, month, year } missing = none; + unsigned days; + + /* The lower level RTC driver may return -1 in some fields, + * creating invalid alarm->time values, for reasons like: + * + * - The hardware may not be capable of filling them in; + * many alarms match only on time-of-day fields, not + * day/month/year calendar data. + * + * - Some hardware uses illegal values as "wildcard" match + * values, which non-Linux firmware (like a BIOS) may try + * to set up as e.g. "alarm 15 minutes after each hour". + * Linux uses only oneshot alarms. + * + * When we see that here, we deal with it by using values from + * a current RTC timestamp for any missing (-1) values. The + * RTC driver prevents "periodic alarm" modes. + * + * But this can be racey, because some fields of the RTC timestamp + * may have wrapped in the interval since we read the RTC alarm, + * which would lead to us inserting inconsistent values in place + * of the -1 fields. + * + * Reading the alarm and timestamp in the reverse sequence + * would have the same race condition, and not solve the issue. + * + * So, we must first read the RTC timestamp, + * then read the RTC alarm value, + * and then read a second RTC timestamp. + * + * If any fields of the second timestamp have changed + * when compared with the first timestamp, then we know + * our timestamp may be inconsistent with that used by + * the low-level rtc_read_alarm_internal() function. + * + * So, when the two timestamps disagree, we just loop and do + * the process again to get a fully consistent set of values. + * + * This could all instead be done in the lower level driver, + * but since more than one lower level RTC implementation needs it, + * then it's probably best best to do it here instead of there.. + */ + + /* Get the "before" timestamp */ + err = rtc_read_time(rtc, &before); + if (err < 0) + return err; + do { + if (!first_time) + memcpy(&before, &now, sizeof(struct rtc_time)); + first_time = 0; + + /* get the RTC alarm values, which may be incomplete */ + err = rtc_read_alarm_internal(rtc, alarm); + if (err) + return err; + + /* full-function RTCs won't have such missing fields */ + if (rtc_valid_tm(&alarm->time) == 0) + return 0; + + /* get the "after" timestamp, to detect wrapped fields */ + err = rtc_read_time(rtc, &now); + if (err < 0) + return err; + + /* note that tm_sec is a "don't care" value here: */ + } while ( before.tm_min != now.tm_min + || before.tm_hour != now.tm_hour + || before.tm_mon != now.tm_mon + || before.tm_year != now.tm_year); + + /* Fill in the missing alarm fields using the timestamp; we + * know there's at least one since alarm->time is invalid. + */ + if (alarm->time.tm_sec == -1) + alarm->time.tm_sec = now.tm_sec; + if (alarm->time.tm_min == -1) + alarm->time.tm_min = now.tm_min; + if (alarm->time.tm_hour == -1) + alarm->time.tm_hour = now.tm_hour; + + /* For simplicity, only support date rollover for now */ + if (alarm->time.tm_mday == -1) { + alarm->time.tm_mday = now.tm_mday; + missing = day; + } + if (alarm->time.tm_mon == -1) { + alarm->time.tm_mon = now.tm_mon; + if (missing == none) + missing = month; + } + if (alarm->time.tm_year == -1) { + alarm->time.tm_year = now.tm_year; + if (missing == none) + missing = year; + } + + /* with luck, no rollover is needed */ + rtc_tm_to_time(&now, &t_now); + rtc_tm_to_time(&alarm->time, &t_alm); + if (t_now < t_alm) + goto done; + + switch (missing) { + + /* 24 hour rollover ... if it's now 10am Monday, an alarm that + * that will trigger at 5am will do so at 5am Tuesday, which + * could also be in the next month or year. This is a common + * case, especially for PCs. + */ + case day: + dev_dbg(&rtc->dev, "alarm rollover: %s\n", "day"); + t_alm += 24 * 60 * 60; + rtc_time_to_tm(t_alm, &alarm->time); + break; + + /* Month rollover ... if it's the 31th, an alarm on the 3rd will + * be next month. An alarm matching on the 30th, 29th, or 28th + * may end up in the month after that! Many newer PCs support + * this type of alarm. + */ + case month: + dev_dbg(&rtc->dev, "alarm rollover: %s\n", "month"); + do { + if (alarm->time.tm_mon < 11) + alarm->time.tm_mon++; + else { + alarm->time.tm_mon = 0; + alarm->time.tm_year++; + } + days = rtc_month_days(alarm->time.tm_mon, + alarm->time.tm_year); + } while (days < alarm->time.tm_mday); + break; + + /* Year rollover ... easy except for leap years! */ + case year: + dev_dbg(&rtc->dev, "alarm rollover: %s\n", "year"); + do { + alarm->time.tm_year++; + } while (rtc_valid_tm(&alarm->time) != 0); + break; + + default: + dev_warn(&rtc->dev, "alarm rollover not handled\n"); + } + +done: + return 0; +} + int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) { int err; @@ -120,12 +303,18 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) err = mutex_lock_interruptible(&rtc->ops_lock); if (err) return err; - alarm->enabled = rtc->aie_timer.enabled; - if (alarm->enabled) + if (rtc->ops == NULL) + err = -ENODEV; + else if (!rtc->ops->read_alarm) + err = -EINVAL; + else { + memset(alarm, 0, sizeof(struct rtc_wkalrm)); + alarm->enabled = rtc->aie_timer.enabled; alarm->time = rtc_ktime_to_tm(rtc->aie_timer.node.expires); + } mutex_unlock(&rtc->ops_lock); - return 0; + return err; } EXPORT_SYMBOL_GPL(rtc_read_alarm); @@ -175,16 +364,14 @@ int rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) return err; if (rtc->aie_timer.enabled) { rtc_timer_remove(rtc, &rtc->aie_timer); - rtc->aie_timer.enabled = 0; } rtc->aie_timer.node.expires = rtc_tm_to_ktime(alarm->time); rtc->aie_timer.period = ktime_set(0, 0); if (alarm->enabled) { - rtc->aie_timer.enabled = 1; - rtc_timer_enqueue(rtc, &rtc->aie_timer); + err = rtc_timer_enqueue(rtc, &rtc->aie_timer); } mutex_unlock(&rtc->ops_lock); - return 0; + return err; } EXPORT_SYMBOL_GPL(rtc_set_alarm); @@ -195,16 +382,15 @@ int rtc_alarm_irq_enable(struct rtc_device *rtc, unsigned int enabled) return err; if (rtc->aie_timer.enabled != enabled) { - if (enabled) { - rtc->aie_timer.enabled = 1; - rtc_timer_enqueue(rtc, &rtc->aie_timer); - } else { + if (enabled) + err = rtc_timer_enqueue(rtc, &rtc->aie_timer); + else rtc_timer_remove(rtc, &rtc->aie_timer); - rtc->aie_timer.enabled = 0; - } } - if (!rtc->ops) + if (err) + /* nothing */; + else if (!rtc->ops) err = -ENODEV; else if (!rtc->ops->alarm_irq_enable) err = -EINVAL; @@ -222,6 +408,12 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) if (err) return err; +#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL + if (enabled == 0 && rtc->uie_irq_active) { + mutex_unlock(&rtc->ops_lock); + return rtc_dev_update_irq_enable_emul(rtc, 0); + } +#endif /* make sure we're changing state */ if (rtc->uie_rtctimer.enabled == enabled) goto out; @@ -235,15 +427,22 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) now = rtc_tm_to_ktime(tm); rtc->uie_rtctimer.node.expires = ktime_add(now, onesec); rtc->uie_rtctimer.period = ktime_set(1, 0); - rtc->uie_rtctimer.enabled = 1; - rtc_timer_enqueue(rtc, &rtc->uie_rtctimer); - } else { + err = rtc_timer_enqueue(rtc, &rtc->uie_rtctimer); + } else rtc_timer_remove(rtc, &rtc->uie_rtctimer); - rtc->uie_rtctimer.enabled = 0; - } out: mutex_unlock(&rtc->ops_lock); +#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL + /* + * Enable emulation if the driver did not provide + * the update_irq_enable function pointer or if returned + * -EINVAL to signal that it has been configured without + * interrupts or that are not available at the moment. + */ + if (err == -EINVAL) + err = rtc_dev_update_irq_enable_emul(rtc, enabled); +#endif return err; } @@ -259,7 +458,7 @@ EXPORT_SYMBOL_GPL(rtc_update_irq_enable); * * Triggers the registered irq_task function callback. */ -static void rtc_handle_legacy_irq(struct rtc_device *rtc, int num, int mode) +void rtc_handle_legacy_irq(struct rtc_device *rtc, int num, int mode) { unsigned long flags; @@ -460,6 +659,9 @@ int rtc_irq_set_freq(struct rtc_device *rtc, struct rtc_task *task, int freq) int err = 0; unsigned long flags; + if (freq <= 0) + return -EINVAL; + spin_lock_irqsave(&rtc->irq_task_lock, flags); if (rtc->irq_task != NULL && task == NULL) err = -EBUSY; @@ -488,10 +690,13 @@ EXPORT_SYMBOL_GPL(rtc_irq_set_freq); * Enqueues a timer onto the rtc devices timerqueue and sets * the next alarm event appropriately. * + * Sets the enabled bit on the added timer. + * * Must hold ops_lock for proper serialization of timerqueue */ -void rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer) +static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer) { + timer->enabled = 1; timerqueue_add(&rtc->timerqueue, &timer->node); if (&timer->node == timerqueue_getnext(&rtc->timerqueue)) { struct rtc_wkalrm alarm; @@ -501,7 +706,13 @@ void rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer) err = __rtc_set_alarm(rtc, &alarm); if (err == -ETIME) schedule_work(&rtc->irqwork); + else if (err) { + timerqueue_del(&rtc->timerqueue, &timer->node); + timer->enabled = 0; + return err; + } } + return 0; } /** @@ -512,13 +723,15 @@ void rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer) * Removes a timer onto the rtc devices timerqueue and sets * the next alarm event appropriately. * + * Clears the enabled bit on the removed timer. + * * Must hold ops_lock for proper serialization of timerqueue */ -void rtc_timer_remove(struct rtc_device *rtc, struct rtc_timer *timer) +static void rtc_timer_remove(struct rtc_device *rtc, struct rtc_timer *timer) { struct timerqueue_node *next = timerqueue_getnext(&rtc->timerqueue); timerqueue_del(&rtc->timerqueue, &timer->node); - + timer->enabled = 0; if (next == &timer->node) { struct rtc_wkalrm alarm; int err; @@ -626,8 +839,7 @@ int rtc_timer_start(struct rtc_device *rtc, struct rtc_timer* timer, timer->node.expires = expires; timer->period = period; - timer->enabled = 1; - rtc_timer_enqueue(rtc, timer); + ret = rtc_timer_enqueue(rtc, timer); mutex_unlock(&rtc->ops_lock); return ret; @@ -645,7 +857,6 @@ int rtc_timer_cancel(struct rtc_device *rtc, struct rtc_timer* timer) mutex_lock(&rtc->ops_lock); if (timer->enabled) rtc_timer_remove(rtc, timer); - timer->enabled = 0; mutex_unlock(&rtc->ops_lock); return ret; } diff --git a/drivers/rtc/rtc-at32ap700x.c b/drivers/rtc/rtc-at32ap700x.c index b2752b6e7a2f..e725d51e773d 100644 --- a/drivers/rtc/rtc-at32ap700x.c +++ b/drivers/rtc/rtc-at32ap700x.c @@ -134,36 +134,29 @@ static int at32_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) return ret; } -static int at32_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int at32_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct rtc_at32ap700x *rtc = dev_get_drvdata(dev); int ret = 0; spin_lock_irq(&rtc->lock); - switch (cmd) { - case RTC_AIE_ON: + if(enabled) { if (rtc_readl(rtc, VAL) > rtc->alarm_time) { ret = -EINVAL; - break; + goto out; } rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) | RTC_BIT(CTRL_TOPEN)); rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); rtc_writel(rtc, IER, RTC_BIT(IER_TOPI)); - break; - case RTC_AIE_OFF: + } else { rtc_writel(rtc, CTRL, rtc_readl(rtc, CTRL) & ~RTC_BIT(CTRL_TOPEN)); rtc_writel(rtc, IDR, RTC_BIT(IDR_TOPI)); rtc_writel(rtc, ICR, RTC_BIT(ICR_TOPI)); - break; - default: - ret = -ENOIOCTLCMD; - break; } - +out: spin_unlock_irq(&rtc->lock); return ret; @@ -195,11 +188,11 @@ static irqreturn_t at32_rtc_interrupt(int irq, void *dev_id) } static struct rtc_class_ops at32_rtc_ops = { - .ioctl = at32_rtc_ioctl, .read_time = at32_rtc_readtime, .set_time = at32_rtc_settime, .read_alarm = at32_rtc_readalarm, .set_alarm = at32_rtc_setalarm, + .alarm_irq_enable = at32_rtc_alarm_irq_enable, }; static int __init at32_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index bc8bbca9a2e2..518a76ec71ca 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -183,40 +183,18 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) return 0; } -/* - * Handle commands from user-space - */ -static int at91_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { - int ret = 0; + pr_debug("%s(): cmd=%08x\n", __func__, enabled); - pr_debug("%s(): cmd=%08x, arg=%08lx.\n", __func__, cmd, arg); - - /* important: scrub old status before enabling IRQs */ - switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ - at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM); - break; - case RTC_AIE_ON: /* alarm on */ + if (enabled) { at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM); at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM); - break; - case RTC_UIE_OFF: /* update off */ - at91_sys_write(AT91_RTC_IDR, AT91_RTC_SECEV); - break; - case RTC_UIE_ON: /* update on */ - at91_sys_write(AT91_RTC_SCCR, AT91_RTC_SECEV); - at91_sys_write(AT91_RTC_IER, AT91_RTC_SECEV); - break; - default: - ret = -ENOIOCTLCMD; - break; - } + } else + at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM); - return ret; + return 0; } - /* * Provide additional RTC information in /proc/driver/rtc */ @@ -264,12 +242,12 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id) } static const struct rtc_class_ops at91_rtc_ops = { - .ioctl = at91_rtc_ioctl, .read_time = at91_rtc_readtime, .set_time = at91_rtc_settime, .read_alarm = at91_rtc_readalarm, .set_alarm = at91_rtc_setalarm, .proc = at91_rtc_proc, + .alarm_irq_enable = at91_rtc_alarm_irq_enable, }; /* diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c index f677e0710ca1..a3ad957507dc 100644 --- a/drivers/rtc/rtc-at91sam9.c +++ b/drivers/rtc/rtc-at91sam9.c @@ -216,37 +216,17 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) return 0; } -/* - * Handle commands from user-space - */ -static int at91_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct sam9_rtc *rtc = dev_get_drvdata(dev); - int ret = 0; u32 mr = rtt_readl(rtc, MR); - dev_dbg(dev, "ioctl: cmd=%08x, arg=%08lx, mr %08x\n", cmd, arg, mr); - - switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ - rtt_writel(rtc, MR, mr & ~AT91_RTT_ALMIEN); - break; - case RTC_AIE_ON: /* alarm on */ + dev_dbg(dev, "alarm_irq_enable: enabled=%08x, mr %08x\n", enabled, mr); + if (enabled) rtt_writel(rtc, MR, mr | AT91_RTT_ALMIEN); - break; - case RTC_UIE_OFF: /* update off */ - rtt_writel(rtc, MR, mr & ~AT91_RTT_RTTINCIEN); - break; - case RTC_UIE_ON: /* update on */ - rtt_writel(rtc, MR, mr | AT91_RTT_RTTINCIEN); - break; - default: - ret = -ENOIOCTLCMD; - break; - } - - return ret; + else + rtt_writel(rtc, MR, mr & ~AT91_RTT_ALMIEN); + return 0; } /* @@ -296,12 +276,12 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *_rtc) } static const struct rtc_class_ops at91_rtc_ops = { - .ioctl = at91_rtc_ioctl, .read_time = at91_rtc_readtime, .set_time = at91_rtc_settime, .read_alarm = at91_rtc_readalarm, .set_alarm = at91_rtc_setalarm, .proc = at91_rtc_proc, + .alarm_irq_enable = at91_rtc_alarm_irq_enable, }; /* diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c index b4b6087f2234..ca9cff85ab8a 100644 --- a/drivers/rtc/rtc-bfin.c +++ b/drivers/rtc/rtc-bfin.c @@ -240,40 +240,16 @@ static void bfin_rtc_int_set_alarm(struct bfin_rtc *rtc) */ bfin_rtc_int_set(rtc->rtc_alarm.tm_yday == -1 ? RTC_ISTAT_ALARM : RTC_ISTAT_ALARM_DAY); } -static int bfin_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) + +static int bfin_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct bfin_rtc *rtc = dev_get_drvdata(dev); - int ret = 0; dev_dbg_stamp(dev); - - bfin_rtc_sync_pending(dev); - - switch (cmd) { - case RTC_UIE_ON: - dev_dbg_stamp(dev); - bfin_rtc_int_set(RTC_ISTAT_SEC); - break; - case RTC_UIE_OFF: - dev_dbg_stamp(dev); - bfin_rtc_int_clear(~RTC_ISTAT_SEC); - break; - - case RTC_AIE_ON: - dev_dbg_stamp(dev); + if (enabled) bfin_rtc_int_set_alarm(rtc); - break; - case RTC_AIE_OFF: - dev_dbg_stamp(dev); + else bfin_rtc_int_clear(~(RTC_ISTAT_ALARM | RTC_ISTAT_ALARM_DAY)); - break; - - default: - dev_dbg_stamp(dev); - ret = -ENOIOCTLCMD; - } - - return ret; } static int bfin_rtc_read_time(struct device *dev, struct rtc_time *tm) @@ -356,12 +332,12 @@ static int bfin_rtc_proc(struct device *dev, struct seq_file *seq) } static struct rtc_class_ops bfin_rtc_ops = { - .ioctl = bfin_rtc_ioctl, .read_time = bfin_rtc_read_time, .set_time = bfin_rtc_set_time, .read_alarm = bfin_rtc_read_alarm, .set_alarm = bfin_rtc_set_alarm, .proc = bfin_rtc_proc, + .alarm_irq_enable = bfin_rtc_alarm_irq_enable, }; static int __devinit bfin_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index c7ff8df347e7..911e75cdc125 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -37,6 +37,8 @@ #include <linux/mod_devicetable.h> #include <linux/log2.h> #include <linux/pm.h> +#include <linux/of.h> +#include <linux/of_platform.h> /* this is for "generic access to PC-style RTC" using CMOS_READ/CMOS_WRITE */ #include <asm-generic/rtc.h> @@ -375,50 +377,6 @@ static int cmos_set_alarm(struct device *dev, struct rtc_wkalrm *t) return 0; } -static int cmos_irq_set_freq(struct device *dev, int freq) -{ - struct cmos_rtc *cmos = dev_get_drvdata(dev); - int f; - unsigned long flags; - - if (!is_valid_irq(cmos->irq)) - return -ENXIO; - - if (!is_power_of_2(freq)) - return -EINVAL; - /* 0 = no irqs; 1 = 2^15 Hz ... 15 = 2^0 Hz */ - f = ffs(freq); - if (f-- > 16) - return -EINVAL; - f = 16 - f; - - spin_lock_irqsave(&rtc_lock, flags); - hpet_set_periodic_freq(freq); - CMOS_WRITE(RTC_REF_CLCK_32KHZ | f, RTC_FREQ_SELECT); - spin_unlock_irqrestore(&rtc_lock, flags); - - return 0; -} - -static int cmos_irq_set_state(struct device *dev, int enabled) -{ - struct cmos_rtc *cmos = dev_get_drvdata(dev); - unsigned long flags; - - if (!is_valid_irq(cmos->irq)) - return -ENXIO; - - spin_lock_irqsave(&rtc_lock, flags); - - if (enabled) - cmos_irq_enable(cmos, RTC_PIE); - else - cmos_irq_disable(cmos, RTC_PIE); - - spin_unlock_irqrestore(&rtc_lock, flags); - return 0; -} - static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct cmos_rtc *cmos = dev_get_drvdata(dev); @@ -438,25 +396,6 @@ static int cmos_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int cmos_update_irq_enable(struct device *dev, unsigned int enabled) -{ - struct cmos_rtc *cmos = dev_get_drvdata(dev); - unsigned long flags; - - if (!is_valid_irq(cmos->irq)) - return -EINVAL; - - spin_lock_irqsave(&rtc_lock, flags); - - if (enabled) - cmos_irq_enable(cmos, RTC_UIE); - else - cmos_irq_disable(cmos, RTC_UIE); - - spin_unlock_irqrestore(&rtc_lock, flags); - return 0; -} - #if defined(CONFIG_RTC_INTF_PROC) || defined(CONFIG_RTC_INTF_PROC_MODULE) static int cmos_procfs(struct device *dev, struct seq_file *seq) @@ -501,10 +440,7 @@ static const struct rtc_class_ops cmos_rtc_ops = { .read_alarm = cmos_read_alarm, .set_alarm = cmos_set_alarm, .proc = cmos_procfs, - .irq_set_freq = cmos_irq_set_freq, - .irq_set_state = cmos_irq_set_state, .alarm_irq_enable = cmos_alarm_irq_enable, - .update_irq_enable = cmos_update_irq_enable, }; /*----------------------------------------------------------------*/ @@ -1123,6 +1059,47 @@ static struct pnp_driver cmos_pnp_driver = { #endif /* CONFIG_PNP */ +#ifdef CONFIG_OF +static const struct of_device_id of_cmos_match[] = { + { + .compatible = "motorola,mc146818", + }, + { }, +}; +MODULE_DEVICE_TABLE(of, of_cmos_match); + +static __init void cmos_of_init(struct platform_device *pdev) +{ + struct device_node *node = pdev->dev.of_node; + struct rtc_time time; + int ret; + const __be32 *val; + + if (!node) + return; + + val = of_get_property(node, "ctrl-reg", NULL); + if (val) + CMOS_WRITE(be32_to_cpup(val), RTC_CONTROL); + + val = of_get_property(node, "freq-reg", NULL); + if (val) + CMOS_WRITE(be32_to_cpup(val), RTC_FREQ_SELECT); + + get_rtc_time(&time); + ret = rtc_valid_tm(&time); + if (ret) { + struct rtc_time def_time = { + .tm_year = 1, + .tm_mday = 1, + }; + set_rtc_time(&def_time); + } +} +#else +static inline void cmos_of_init(struct platform_device *pdev) {} +#define of_cmos_match NULL +#endif /*----------------------------------------------------------------*/ /* Platform setup should have set up an RTC device, when PNP is @@ -1131,6 +1108,7 @@ static struct pnp_driver cmos_pnp_driver = { static int __init cmos_platform_probe(struct platform_device *pdev) { + cmos_of_init(pdev); cmos_wake_setup(&pdev->dev); return cmos_do_probe(&pdev->dev, platform_get_resource(pdev, IORESOURCE_IO, 0), @@ -1162,6 +1140,7 @@ static struct platform_driver cmos_platform_driver = { #ifdef CONFIG_PM .pm = &cmos_pm_ops, #endif + .of_match_table = of_cmos_match, } }; diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 34647fc1ee98..8d46838dff8a 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -231,10 +231,6 @@ davinci_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) case RTC_WIE_OFF: rtc_ctrl &= ~PRTCSS_RTC_CTRL_WEN; break; - case RTC_UIE_OFF: - case RTC_UIE_ON: - ret = -ENOTTY; - break; default: ret = -ENOIOCTLCMD; } @@ -473,55 +469,6 @@ static int davinci_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) return 0; } -static int davinci_rtc_irq_set_state(struct device *dev, int enabled) -{ - struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); - unsigned long flags; - u8 rtc_ctrl; - - spin_lock_irqsave(&davinci_rtc_lock, flags); - - rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL); - - if (enabled) { - while (rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL) - & PRTCSS_RTC_CTRL_WDTBUS) - cpu_relax(); - - rtc_ctrl |= PRTCSS_RTC_CTRL_TE; - rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL); - - rtcss_write(davinci_rtc, 0x0, PRTCSS_RTC_CLKC_CNT); - - rtc_ctrl |= PRTCSS_RTC_CTRL_TIEN | - PRTCSS_RTC_CTRL_TMMD | - PRTCSS_RTC_CTRL_TMRFLG; - } else - rtc_ctrl &= ~PRTCSS_RTC_CTRL_TIEN; - - rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL); - - spin_unlock_irqrestore(&davinci_rtc_lock, flags); - - return 0; -} - -static int davinci_rtc_irq_set_freq(struct device *dev, int freq) -{ - struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); - unsigned long flags; - u16 tmr_counter = (0x8000 >> (ffs(freq) - 1)); - - spin_lock_irqsave(&davinci_rtc_lock, flags); - - rtcss_write(davinci_rtc, tmr_counter & 0xFF, PRTCSS_RTC_TMR0); - rtcss_write(davinci_rtc, (tmr_counter & 0xFF00) >> 8, PRTCSS_RTC_TMR1); - - spin_unlock_irqrestore(&davinci_rtc_lock, flags); - - return 0; -} - static struct rtc_class_ops davinci_rtc_ops = { .ioctl = davinci_rtc_ioctl, .read_time = davinci_rtc_read_time, @@ -529,8 +476,6 @@ static struct rtc_class_ops davinci_rtc_ops = { .alarm_irq_enable = davinci_rtc_alarm_irq_enable, .read_alarm = davinci_rtc_read_alarm, .set_alarm = davinci_rtc_set_alarm, - .irq_set_state = davinci_rtc_irq_set_state, - .irq_set_freq = davinci_rtc_irq_set_freq, }; static int __init davinci_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-dev.c b/drivers/rtc/rtc-dev.c index 212b16edafc0..d0e06edb14c5 100644 --- a/drivers/rtc/rtc-dev.c +++ b/drivers/rtc/rtc-dev.c @@ -46,6 +46,105 @@ static int rtc_dev_open(struct inode *inode, struct file *file) return err; } +#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL +/* + * Routine to poll RTC seconds field for change as often as possible, + * after first RTC_UIE use timer to reduce polling + */ +static void rtc_uie_task(struct work_struct *work) +{ + struct rtc_device *rtc = + container_of(work, struct rtc_device, uie_task); + struct rtc_time tm; + int num = 0; + int err; + + err = rtc_read_time(rtc, &tm); + + spin_lock_irq(&rtc->irq_lock); + if (rtc->stop_uie_polling || err) { + rtc->uie_task_active = 0; + } else if (rtc->oldsecs != tm.tm_sec) { + num = (tm.tm_sec + 60 - rtc->oldsecs) % 60; + rtc->oldsecs = tm.tm_sec; + rtc->uie_timer.expires = jiffies + HZ - (HZ/10); + rtc->uie_timer_active = 1; + rtc->uie_task_active = 0; + add_timer(&rtc->uie_timer); + } else if (schedule_work(&rtc->uie_task) == 0) { + rtc->uie_task_active = 0; + } + spin_unlock_irq(&rtc->irq_lock); + if (num) + rtc_handle_legacy_irq(rtc, num, RTC_UF); +} +static void rtc_uie_timer(unsigned long data) +{ + struct rtc_device *rtc = (struct rtc_device *)data; + unsigned long flags; + + spin_lock_irqsave(&rtc->irq_lock, flags); + rtc->uie_timer_active = 0; + rtc->uie_task_active = 1; + if ((schedule_work(&rtc->uie_task) == 0)) + rtc->uie_task_active = 0; + spin_unlock_irqrestore(&rtc->irq_lock, flags); +} + +static int clear_uie(struct rtc_device *rtc) +{ + spin_lock_irq(&rtc->irq_lock); + if (rtc->uie_irq_active) { + rtc->stop_uie_polling = 1; + if (rtc->uie_timer_active) { + spin_unlock_irq(&rtc->irq_lock); + del_timer_sync(&rtc->uie_timer); + spin_lock_irq(&rtc->irq_lock); + rtc->uie_timer_active = 0; + } + if (rtc->uie_task_active) { + spin_unlock_irq(&rtc->irq_lock); + flush_scheduled_work(); + spin_lock_irq(&rtc->irq_lock); + } + rtc->uie_irq_active = 0; + } + spin_unlock_irq(&rtc->irq_lock); + return 0; +} + +static int set_uie(struct rtc_device *rtc) +{ + struct rtc_time tm; + int err; + + err = rtc_read_time(rtc, &tm); + if (err) + return err; + spin_lock_irq(&rtc->irq_lock); + if (!rtc->uie_irq_active) { + rtc->uie_irq_active = 1; + rtc->stop_uie_polling = 0; + rtc->oldsecs = tm.tm_sec; + rtc->uie_task_active = 1; + if (schedule_work(&rtc->uie_task) == 0) + rtc->uie_task_active = 0; + } + rtc->irq_data = 0; + spin_unlock_irq(&rtc->irq_lock); + return 0; +} + +int rtc_dev_update_irq_enable_emul(struct rtc_device *rtc, unsigned int enabled) +{ + if (enabled) + return set_uie(rtc); + else + return clear_uie(rtc); +} +EXPORT_SYMBOL(rtc_dev_update_irq_enable_emul); + +#endif /* CONFIG_RTC_INTF_DEV_UIE_EMUL */ static ssize_t rtc_dev_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) @@ -154,19 +253,7 @@ static long rtc_dev_ioctl(struct file *file, if (err) goto done; - /* try the driver's ioctl interface */ - if (ops->ioctl) { - err = ops->ioctl(rtc->dev.parent, cmd, arg); - if (err != -ENOIOCTLCMD) { - mutex_unlock(&rtc->ops_lock); - return err; - } - } - - /* if the driver does not provide the ioctl interface - * or if that particular ioctl was not implemented - * (-ENOIOCTLCMD), we will try to emulate here. - * + /* * Drivers *SHOULD NOT* provide ioctl implementations * for these requests. Instead, provide methods to * support the following code, so that the RTC's main @@ -329,7 +416,12 @@ static long rtc_dev_ioctl(struct file *file, return err; default: - err = -ENOTTY; + /* Finally try the driver's ioctl interface */ + if (ops->ioctl) { + err = ops->ioctl(rtc->dev.parent, cmd, arg); + if (err == -ENOIOCTLCMD) + err = -ENOTTY; + } break; } @@ -394,6 +486,11 @@ void rtc_dev_prepare(struct rtc_device *rtc) rtc->dev.devt = MKDEV(MAJOR(rtc_devt), rtc->id); +#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL + INIT_WORK(&rtc->uie_task, rtc_uie_task); + setup_timer(&rtc->uie_timer, rtc_uie_timer, (unsigned long)rtc); +#endif + cdev_init(&rtc->char_dev, &rtc_dev_fops); rtc->char_dev.owner = rtc->owner; } diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c index bf430f9091ed..60ce69600828 100644 --- a/drivers/rtc/rtc-ds1286.c +++ b/drivers/rtc/rtc-ds1286.c @@ -40,6 +40,26 @@ static inline void ds1286_rtc_write(struct ds1286_priv *priv, u8 data, int reg) __raw_writel(data, &priv->rtcregs[reg]); } + +static int ds1286_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + struct ds1286_priv *priv = dev_get_drvdata(dev); + unsigned long flags; + unsigned char val; + + /* Allow or mask alarm interrupts */ + spin_lock_irqsave(&priv->lock, flags); + val = ds1286_rtc_read(priv, RTC_CMD); + if (enabled) + val &= ~RTC_TDM; + else + val |= RTC_TDM; + ds1286_rtc_write(priv, val, RTC_CMD); + spin_unlock_irqrestore(&priv->lock, flags); + + return 0; +} + #ifdef CONFIG_RTC_INTF_DEV static int ds1286_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) @@ -49,22 +69,6 @@ static int ds1286_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) unsigned char val; switch (cmd) { - case RTC_AIE_OFF: - /* Mask alarm int. enab. bit */ - spin_lock_irqsave(&priv->lock, flags); - val = ds1286_rtc_read(priv, RTC_CMD); - val |= RTC_TDM; - ds1286_rtc_write(priv, val, RTC_CMD); - spin_unlock_irqrestore(&priv->lock, flags); - break; - case RTC_AIE_ON: - /* Allow alarm interrupts. */ - spin_lock_irqsave(&priv->lock, flags); - val = ds1286_rtc_read(priv, RTC_CMD); - val &= ~RTC_TDM; - ds1286_rtc_write(priv, val, RTC_CMD); - spin_unlock_irqrestore(&priv->lock, flags); - break; case RTC_WIE_OFF: /* Mask watchdog int. enab. bit */ spin_lock_irqsave(&priv->lock, flags); @@ -316,12 +320,13 @@ static int ds1286_set_alarm(struct device *dev, struct rtc_wkalrm *alm) } static const struct rtc_class_ops ds1286_ops = { - .ioctl = ds1286_ioctl, - .proc = ds1286_proc, + .ioctl = ds1286_ioctl, + .proc = ds1286_proc, .read_time = ds1286_read_time, .set_time = ds1286_set_time, .read_alarm = ds1286_read_alarm, .set_alarm = ds1286_set_alarm, + .alarm_irq_enable = ds1286_alarm_irq_enable, }; static int __devinit ds1286_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index 077af1d7b9e4..57fbcc149ba7 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -139,49 +139,32 @@ static u8 hour2bcd(bool hr12, int hour) * Interface to RTC framework */ -#ifdef CONFIG_RTC_INTF_DEV - -/* - * Context: caller holds rtc->ops_lock (to protect ds1305->ctrl) - */ -static int ds1305_ioctl(struct device *dev, unsigned cmd, unsigned long arg) +static int ds1305_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct ds1305 *ds1305 = dev_get_drvdata(dev); u8 buf[2]; - int status = -ENOIOCTLCMD; + long err = -EINVAL; buf[0] = DS1305_WRITE | DS1305_CONTROL; buf[1] = ds1305->ctrl[0]; - switch (cmd) { - case RTC_AIE_OFF: - status = 0; - if (!(buf[1] & DS1305_AEI0)) - goto done; - buf[1] &= ~DS1305_AEI0; - break; - - case RTC_AIE_ON: - status = 0; + if (enabled) { if (ds1305->ctrl[0] & DS1305_AEI0) goto done; buf[1] |= DS1305_AEI0; - break; - } - if (status == 0) { - status = spi_write_then_read(ds1305->spi, buf, sizeof buf, - NULL, 0); - if (status >= 0) - ds1305->ctrl[0] = buf[1]; + } else { + if (!(buf[1] & DS1305_AEI0)) + goto done; + buf[1] &= ~DS1305_AEI0; } - + err = spi_write_then_read(ds1305->spi, buf, sizeof buf, NULL, 0); + if (err >= 0) + ds1305->ctrl[0] = buf[1]; done: - return status; + return err; + } -#else -#define ds1305_ioctl NULL -#endif /* * Get/set of date and time is pretty normal. @@ -460,12 +443,12 @@ done: #endif static const struct rtc_class_ops ds1305_ops = { - .ioctl = ds1305_ioctl, .read_time = ds1305_get_time, .set_time = ds1305_set_time, .read_alarm = ds1305_get_alarm, .set_alarm = ds1305_set_alarm, .proc = ds1305_proc, + .alarm_irq_enable = ds1305_alarm_irq_enable, }; static void ds1305_work(struct work_struct *work) diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index 0d559b6416dd..4724ba3acf1a 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -495,50 +495,27 @@ static int ds1337_set_alarm(struct device *dev, struct rtc_wkalrm *t) return 0; } -static int ds1307_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int ds1307_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct i2c_client *client = to_i2c_client(dev); struct ds1307 *ds1307 = i2c_get_clientdata(client); int ret; - switch (cmd) { - case RTC_AIE_OFF: - if (!test_bit(HAS_ALARM, &ds1307->flags)) - return -ENOTTY; - - ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL); - if (ret < 0) - return ret; - - ret &= ~DS1337_BIT_A1IE; - - ret = i2c_smbus_write_byte_data(client, - DS1337_REG_CONTROL, ret); - if (ret < 0) - return ret; - - break; - - case RTC_AIE_ON: - if (!test_bit(HAS_ALARM, &ds1307->flags)) - return -ENOTTY; + if (!test_bit(HAS_ALARM, &ds1307->flags)) + return -ENOTTY; - ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL); - if (ret < 0) - return ret; + ret = i2c_smbus_read_byte_data(client, DS1337_REG_CONTROL); + if (ret < 0) + return ret; + if (enabled) ret |= DS1337_BIT_A1IE; + else + ret &= ~DS1337_BIT_A1IE; - ret = i2c_smbus_write_byte_data(client, - DS1337_REG_CONTROL, ret); - if (ret < 0) - return ret; - - break; - - default: - return -ENOIOCTLCMD; - } + ret = i2c_smbus_write_byte_data(client, DS1337_REG_CONTROL, ret); + if (ret < 0) + return ret; return 0; } @@ -548,7 +525,7 @@ static const struct rtc_class_ops ds13xx_rtc_ops = { .set_time = ds1307_set_time, .read_alarm = ds1337_read_alarm, .set_alarm = ds1337_set_alarm, - .ioctl = ds1307_ioctl, + .alarm_irq_enable = ds1307_alarm_irq_enable, }; /*----------------------------------------------------------------------*/ diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c index 47fb6357c346..d834a63ec4b0 100644 --- a/drivers/rtc/rtc-ds1374.c +++ b/drivers/rtc/rtc-ds1374.c @@ -307,42 +307,25 @@ unlock: mutex_unlock(&ds1374->mutex); } -static int ds1374_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int ds1374_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct i2c_client *client = to_i2c_client(dev); struct ds1374 *ds1374 = i2c_get_clientdata(client); - int ret = -ENOIOCTLCMD; + int ret; mutex_lock(&ds1374->mutex); - switch (cmd) { - case RTC_AIE_OFF: - ret = i2c_smbus_read_byte_data(client, DS1374_REG_CR); - if (ret < 0) - goto out; - - ret &= ~DS1374_REG_CR_WACE; - - ret = i2c_smbus_write_byte_data(client, DS1374_REG_CR, ret); - if (ret < 0) - goto out; - - break; - - case RTC_AIE_ON: - ret = i2c_smbus_read_byte_data(client, DS1374_REG_CR); - if (ret < 0) - goto out; + ret = i2c_smbus_read_byte_data(client, DS1374_REG_CR); + if (ret < 0) + goto out; + if (enabled) { ret |= DS1374_REG_CR_WACE | DS1374_REG_CR_AIE; ret &= ~DS1374_REG_CR_WDALM; - - ret = i2c_smbus_write_byte_data(client, DS1374_REG_CR, ret); - if (ret < 0) - goto out; - - break; + } else { + ret &= ~DS1374_REG_CR_WACE; } + ret = i2c_smbus_write_byte_data(client, DS1374_REG_CR, ret); out: mutex_unlock(&ds1374->mutex); @@ -354,7 +337,7 @@ static const struct rtc_class_ops ds1374_rtc_ops = { .set_time = ds1374_set_time, .read_alarm = ds1374_read_alarm, .set_alarm = ds1374_set_alarm, - .ioctl = ds1374_ioctl, + .alarm_irq_enable = ds1374_alarm_irq_enable, }; static int ds1374_probe(struct i2c_client *client, diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index 37268e97de49..3fffd708711f 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -397,29 +397,12 @@ static int ds1511_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int ds1511_rtc_update_irq_enable(struct device *dev, - unsigned int enabled) -{ - struct platform_device *pdev = to_platform_device(dev); - struct rtc_plat_data *pdata = platform_get_drvdata(pdev); - - if (pdata->irq <= 0) - return -EINVAL; - if (enabled) - pdata->irqen |= RTC_UF; - else - pdata->irqen &= ~RTC_UF; - ds1511_rtc_update_alarm(pdata); - return 0; -} - static const struct rtc_class_ops ds1511_rtc_ops = { .read_time = ds1511_rtc_read_time, .set_time = ds1511_rtc_set_time, .read_alarm = ds1511_rtc_read_alarm, .set_alarm = ds1511_rtc_set_alarm, .alarm_irq_enable = ds1511_rtc_alarm_irq_enable, - .update_irq_enable = ds1511_rtc_update_irq_enable, }; static ssize_t diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c index ff432e2ca275..fee41b97c9e8 100644 --- a/drivers/rtc/rtc-ds1553.c +++ b/drivers/rtc/rtc-ds1553.c @@ -227,29 +227,12 @@ static int ds1553_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int ds1553_rtc_update_irq_enable(struct device *dev, - unsigned int enabled) -{ - struct platform_device *pdev = to_platform_device(dev); - struct rtc_plat_data *pdata = platform_get_drvdata(pdev); - - if (pdata->irq <= 0) - return -EINVAL; - if (enabled) - pdata->irqen |= RTC_UF; - else - pdata->irqen &= ~RTC_UF; - ds1553_rtc_update_alarm(pdata); - return 0; -} - static const struct rtc_class_ops ds1553_rtc_ops = { .read_time = ds1553_rtc_read_time, .set_time = ds1553_rtc_set_time, .read_alarm = ds1553_rtc_read_alarm, .set_alarm = ds1553_rtc_set_alarm, .alarm_irq_enable = ds1553_rtc_alarm_irq_enable, - .update_irq_enable = ds1553_rtc_update_irq_enable, }; static ssize_t ds1553_nvram_read(struct file *filp, struct kobject *kobj, diff --git a/drivers/rtc/rtc-ds3232.c b/drivers/rtc/rtc-ds3232.c index 23a9ee19764c..27b7bf672ac6 100644 --- a/drivers/rtc/rtc-ds3232.c +++ b/drivers/rtc/rtc-ds3232.c @@ -1,7 +1,7 @@ /* * RTC client/driver for the Maxim/Dallas DS3232 Real-Time Clock over I2C * - * Copyright (C) 2009-2010 Freescale Semiconductor. + * Copyright (C) 2009-2011 Freescale Semiconductor. * Author: Jack Lan <jack.lan@freescale.com> * * This program is free software; you can redistribute it and/or modify it @@ -141,9 +141,11 @@ static int ds3232_read_time(struct device *dev, struct rtc_time *time) time->tm_hour = bcd2bin(hour); } - time->tm_wday = bcd2bin(week); + /* Day of the week in linux range is 0~6 while 1~7 in RTC chip */ + time->tm_wday = bcd2bin(week) - 1; time->tm_mday = bcd2bin(day); - time->tm_mon = bcd2bin(month & 0x7F); + /* linux tm_mon range:0~11, while month range is 1~12 in RTC chip */ + time->tm_mon = bcd2bin(month & 0x7F) - 1; if (century) add_century = 100; @@ -162,9 +164,11 @@ static int ds3232_set_time(struct device *dev, struct rtc_time *time) buf[0] = bin2bcd(time->tm_sec); buf[1] = bin2bcd(time->tm_min); buf[2] = bin2bcd(time->tm_hour); - buf[3] = bin2bcd(time->tm_wday); /* Day of the week */ + /* Day of the week in linux range is 0~6 while 1~7 in RTC chip */ + buf[3] = bin2bcd(time->tm_wday + 1); buf[4] = bin2bcd(time->tm_mday); /* Date */ - buf[5] = bin2bcd(time->tm_mon); + /* linux tm_mon range:0~11, while month range is 1~12 in RTC chip */ + buf[5] = bin2bcd(time->tm_mon + 1); if (time->tm_year >= 100) { buf[5] |= 0x80; buf[6] = bin2bcd(time->tm_year - 100); @@ -335,23 +339,6 @@ static int ds3232_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int ds3232_update_irq_enable(struct device *dev, unsigned int enabled) -{ - struct i2c_client *client = to_i2c_client(dev); - struct ds3232 *ds3232 = i2c_get_clientdata(client); - - if (client->irq <= 0) - return -EINVAL; - - if (enabled) - ds3232->rtc->irq_data |= RTC_UF; - else - ds3232->rtc->irq_data &= ~RTC_UF; - - ds3232_update_alarm(client); - return 0; -} - static irqreturn_t ds3232_irq(int irq, void *dev_id) { struct i2c_client *client = dev_id; @@ -402,7 +389,6 @@ static const struct rtc_class_ops ds3232_rtc_ops = { .read_alarm = ds3232_read_alarm, .set_alarm = ds3232_set_alarm, .alarm_irq_enable = ds3232_alarm_irq_enable, - .update_irq_enable = ds3232_update_irq_enable, }; static int __devinit ds3232_probe(struct i2c_client *client, diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c index 2e16f72c9056..b6473631d182 100644 --- a/drivers/rtc/rtc-jz4740.c +++ b/drivers/rtc/rtc-jz4740.c @@ -168,12 +168,6 @@ static int jz4740_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) return ret; } -static int jz4740_rtc_update_irq_enable(struct device *dev, unsigned int enable) -{ - struct jz4740_rtc *rtc = dev_get_drvdata(dev); - return jz4740_rtc_ctrl_set_bits(rtc, JZ_RTC_CTRL_1HZ_IRQ, enable); -} - static int jz4740_rtc_alarm_irq_enable(struct device *dev, unsigned int enable) { struct jz4740_rtc *rtc = dev_get_drvdata(dev); @@ -185,7 +179,6 @@ static struct rtc_class_ops jz4740_rtc_ops = { .set_mmss = jz4740_rtc_set_mmss, .read_alarm = jz4740_rtc_read_alarm, .set_alarm = jz4740_rtc_set_alarm, - .update_irq_enable = jz4740_rtc_update_irq_enable, .alarm_irq_enable = jz4740_rtc_alarm_irq_enable, }; diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c index 5a8daa358066..69fe664a2228 100644 --- a/drivers/rtc/rtc-m41t80.c +++ b/drivers/rtc/rtc-m41t80.c @@ -213,41 +213,27 @@ static int m41t80_rtc_set_time(struct device *dev, struct rtc_time *tm) return m41t80_set_datetime(to_i2c_client(dev), tm); } -#if defined(CONFIG_RTC_INTF_DEV) || defined(CONFIG_RTC_INTF_DEV_MODULE) -static int -m41t80_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int m41t80_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct i2c_client *client = to_i2c_client(dev); int rc; - switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: - break; - default: - return -ENOIOCTLCMD; - } - rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON); if (rc < 0) goto err; - switch (cmd) { - case RTC_AIE_OFF: - rc &= ~M41T80_ALMON_AFE; - break; - case RTC_AIE_ON: + + if (enabled) rc |= M41T80_ALMON_AFE; - break; - } + else + rc &= ~M41T80_ALMON_AFE; + if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, rc) < 0) goto err; + return 0; err: return -EIO; } -#else -#define m41t80_rtc_ioctl NULL -#endif static int m41t80_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t) { @@ -374,7 +360,7 @@ static struct rtc_class_ops m41t80_rtc_ops = { .read_alarm = m41t80_rtc_read_alarm, .set_alarm = m41t80_rtc_set_alarm, .proc = m41t80_rtc_proc, - .ioctl = m41t80_rtc_ioctl, + .alarm_irq_enable = m41t80_rtc_alarm_irq_enable, }; #if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE) diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c index a99a0b554eb8..3978f4caf724 100644 --- a/drivers/rtc/rtc-m48t59.c +++ b/drivers/rtc/rtc-m48t59.c @@ -263,30 +263,21 @@ static int m48t59_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) /* * Handle commands from user-space */ -static int m48t59_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int m48t59_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct platform_device *pdev = to_platform_device(dev); struct m48t59_plat_data *pdata = pdev->dev.platform_data; struct m48t59_private *m48t59 = platform_get_drvdata(pdev); unsigned long flags; - int ret = 0; spin_lock_irqsave(&m48t59->lock, flags); - switch (cmd) { - case RTC_AIE_OFF: /* alarm interrupt off */ - M48T59_WRITE(0x00, M48T59_INTR); - break; - case RTC_AIE_ON: /* alarm interrupt on */ + if (enabled) M48T59_WRITE(M48T59_INTR_AFE, M48T59_INTR); - break; - default: - ret = -ENOIOCTLCMD; - break; - } + else + M48T59_WRITE(0x00, M48T59_INTR); spin_unlock_irqrestore(&m48t59->lock, flags); - return ret; + return 0; } static int m48t59_rtc_proc(struct device *dev, struct seq_file *seq) @@ -330,12 +321,12 @@ static irqreturn_t m48t59_rtc_interrupt(int irq, void *dev_id) } static const struct rtc_class_ops m48t59_rtc_ops = { - .ioctl = m48t59_rtc_ioctl, .read_time = m48t59_rtc_read_time, .set_time = m48t59_rtc_set_time, .read_alarm = m48t59_rtc_readalarm, .set_alarm = m48t59_rtc_setalarm, .proc = m48t59_rtc_proc, + .alarm_irq_enable = m48t59_rtc_alarm_irq_enable, }; static const struct rtc_class_ops m48t02_rtc_ops = { diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c index 5314b153bfba..c42006469559 100644 --- a/drivers/rtc/rtc-mc13xxx.c +++ b/drivers/rtc/rtc-mc13xxx.c @@ -282,12 +282,6 @@ static irqreturn_t mc13xxx_rtc_update_handler(int irq, void *dev) return IRQ_HANDLED; } -static int mc13xxx_rtc_update_irq_enable(struct device *dev, - unsigned int enabled) -{ - return mc13xxx_rtc_irq_enable(dev, enabled, MC13XXX_IRQ_1HZ); -} - static int mc13xxx_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { @@ -300,7 +294,6 @@ static const struct rtc_class_ops mc13xxx_rtc_ops = { .read_alarm = mc13xxx_rtc_read_alarm, .set_alarm = mc13xxx_rtc_set_alarm, .alarm_irq_enable = mc13xxx_rtc_alarm_irq_enable, - .update_irq_enable = mc13xxx_rtc_update_irq_enable, }; static irqreturn_t mc13xxx_rtc_reset_handler(int irq, void *dev) diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c index dfcdf0901d21..09ccd8d3ba2a 100644 --- a/drivers/rtc/rtc-mpc5121.c +++ b/drivers/rtc/rtc-mpc5121.c @@ -240,36 +240,15 @@ static int mpc5121_rtc_alarm_irq_enable(struct device *dev, return 0; } -static int mpc5121_rtc_update_irq_enable(struct device *dev, - unsigned int enabled) -{ - struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev); - struct mpc5121_rtc_regs __iomem *regs = rtc->regs; - int val; - - val = in_8(®s->int_enable); - - if (enabled) - val = (val & ~0x8) | 0x1; - else - val &= ~0x1; - - out_8(®s->int_enable, val); - - return 0; -} - static const struct rtc_class_ops mpc5121_rtc_ops = { .read_time = mpc5121_rtc_read_time, .set_time = mpc5121_rtc_set_time, .read_alarm = mpc5121_rtc_read_alarm, .set_alarm = mpc5121_rtc_set_alarm, .alarm_irq_enable = mpc5121_rtc_alarm_irq_enable, - .update_irq_enable = mpc5121_rtc_update_irq_enable, }; -static int __devinit mpc5121_rtc_probe(struct platform_device *op, - const struct of_device_id *match) +static int __devinit mpc5121_rtc_probe(struct platform_device *op) { struct mpc5121_rtc_data *rtc; int err = 0; @@ -364,7 +343,7 @@ static struct of_device_id mpc5121_rtc_match[] __devinitdata = { {}, }; -static struct of_platform_driver mpc5121_rtc_driver = { +static struct platform_driver mpc5121_rtc_driver = { .driver = { .name = "mpc5121-rtc", .owner = THIS_MODULE, @@ -376,13 +355,13 @@ static struct of_platform_driver mpc5121_rtc_driver = { static int __init mpc5121_rtc_init(void) { - return of_register_platform_driver(&mpc5121_rtc_driver); + return platform_driver_register(&mpc5121_rtc_driver); } module_init(mpc5121_rtc_init); static void __exit mpc5121_rtc_exit(void) { - of_unregister_platform_driver(&mpc5121_rtc_driver); + platform_driver_unregister(&mpc5121_rtc_driver); } module_exit(mpc5121_rtc_exit); diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index bcd0cf63eb16..b86bc328463b 100644 --- a/drivers/rtc/rtc-mrst.c +++ b/drivers/rtc/rtc-mrst.c @@ -62,6 +62,17 @@ static inline int is_intr(u8 rtc_intr) return rtc_intr & RTC_IRQMASK; } +static inline unsigned char vrtc_is_updating(void) +{ + unsigned char uip; + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + uip = (vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP); + spin_unlock_irqrestore(&rtc_lock, flags); + return uip; +} + /* * rtc_time's year contains the increment over 1900, but vRTC's YEAR * register can't be programmed to value larger than 0x64, so vRTC @@ -76,7 +87,7 @@ static int mrst_read_time(struct device *dev, struct rtc_time *time) { unsigned long flags; - if (rtc_is_updating()) + if (vrtc_is_updating()) mdelay(20); spin_lock_irqsave(&rtc_lock, flags); @@ -236,61 +247,21 @@ static int mrst_set_alarm(struct device *dev, struct rtc_wkalrm *t) return 0; } -static int mrst_irq_set_state(struct device *dev, int enabled) +/* Currently, the vRTC doesn't support UIE ON/OFF */ +static int mrst_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct mrst_rtc *mrst = dev_get_drvdata(dev); unsigned long flags; - if (!mrst->irq) - return -ENXIO; - spin_lock_irqsave(&rtc_lock, flags); - if (enabled) - mrst_irq_enable(mrst, RTC_PIE); + mrst_irq_enable(mrst, RTC_AIE); else - mrst_irq_disable(mrst, RTC_PIE); - - spin_unlock_irqrestore(&rtc_lock, flags); - return 0; -} - -#if defined(CONFIG_RTC_INTF_DEV) || defined(CONFIG_RTC_INTF_DEV_MODULE) - -/* Currently, the vRTC doesn't support UIE ON/OFF */ -static int -mrst_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) -{ - struct mrst_rtc *mrst = dev_get_drvdata(dev); - unsigned long flags; - - switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: - if (!mrst->irq) - return -EINVAL; - break; - default: - /* PIE ON/OFF is handled by mrst_irq_set_state() */ - return -ENOIOCTLCMD; - } - - spin_lock_irqsave(&rtc_lock, flags); - switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ mrst_irq_disable(mrst, RTC_AIE); - break; - case RTC_AIE_ON: /* alarm on */ - mrst_irq_enable(mrst, RTC_AIE); - break; - } spin_unlock_irqrestore(&rtc_lock, flags); return 0; } -#else -#define mrst_rtc_ioctl NULL -#endif #if defined(CONFIG_RTC_INTF_PROC) || defined(CONFIG_RTC_INTF_PROC_MODULE) @@ -317,13 +288,12 @@ static int mrst_procfs(struct device *dev, struct seq_file *seq) #endif static const struct rtc_class_ops mrst_rtc_ops = { - .ioctl = mrst_rtc_ioctl, .read_time = mrst_read_time, .set_time = mrst_set_time, .read_alarm = mrst_read_alarm, .set_alarm = mrst_set_alarm, .proc = mrst_procfs, - .irq_set_state = mrst_irq_set_state, + .alarm_irq_enable = mrst_rtc_alarm_irq_enable, }; static struct mrst_rtc mrst_rtc; diff --git a/drivers/rtc/rtc-msm6242.c b/drivers/rtc/rtc-msm6242.c index b2fff0ca49f8..67820626e18f 100644 --- a/drivers/rtc/rtc-msm6242.c +++ b/drivers/rtc/rtc-msm6242.c @@ -82,7 +82,7 @@ static inline unsigned int msm6242_read(struct msm6242_priv *priv, static inline void msm6242_write(struct msm6242_priv *priv, unsigned int val, unsigned int reg) { - return __raw_writel(val, &priv->regs[reg]); + __raw_writel(val, &priv->regs[reg]); } static inline void msm6242_set(struct msm6242_priv *priv, unsigned int val, diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c index bcca47298554..60627a764514 100644 --- a/drivers/rtc/rtc-mv.c +++ b/drivers/rtc/rtc-mv.c @@ -169,25 +169,19 @@ static int mv_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) return 0; } -static int mv_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int mv_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct platform_device *pdev = to_platform_device(dev); struct rtc_plat_data *pdata = platform_get_drvdata(pdev); void __iomem *ioaddr = pdata->ioaddr; if (pdata->irq < 0) - return -ENOIOCTLCMD; /* fall back into rtc-dev's emulation */ - switch (cmd) { - case RTC_AIE_OFF: - writel(0, ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS); - break; - case RTC_AIE_ON: + return -EINVAL; /* fall back into rtc-dev's emulation */ + + if (enabled) writel(1, ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS); - break; - default: - return -ENOIOCTLCMD; - } + else + writel(0, ioaddr + RTC_ALARM_INTERRUPT_MASK_REG_OFFS); return 0; } @@ -216,7 +210,7 @@ static const struct rtc_class_ops mv_rtc_alarm_ops = { .set_time = mv_rtc_set_time, .read_alarm = mv_rtc_read_alarm, .set_alarm = mv_rtc_set_alarm, - .ioctl = mv_rtc_ioctl, + .alarm_irq_enable = mv_rtc_alarm_irq_enable, }; static int __devinit mv_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c index 0b06c1e03fd5..826ab64a8fa9 100644 --- a/drivers/rtc/rtc-mxc.c +++ b/drivers/rtc/rtc-mxc.c @@ -274,12 +274,6 @@ static int mxc_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int mxc_rtc_update_irq_enable(struct device *dev, unsigned int enabled) -{ - mxc_rtc_irq_enable(dev, RTC_1HZ_BIT, enabled); - return 0; -} - /* * This function reads the current RTC time into tm in Gregorian date. */ @@ -368,7 +362,6 @@ static struct rtc_class_ops mxc_rtc_ops = { .read_alarm = mxc_rtc_read_alarm, .set_alarm = mxc_rtc_set_alarm, .alarm_irq_enable = mxc_rtc_alarm_irq_enable, - .update_irq_enable = mxc_rtc_update_irq_enable, }; static int __init mxc_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-nuc900.c b/drivers/rtc/rtc-nuc900.c index ddb0857e15a4..781068d62f23 100644 --- a/drivers/rtc/rtc-nuc900.c +++ b/drivers/rtc/rtc-nuc900.c @@ -134,20 +134,6 @@ static void nuc900_rtc_bin2bcd(struct device *dev, struct rtc_time *settm, gettm->bcd_hour = bin2bcd(settm->tm_hour) << 16; } -static int nuc900_update_irq_enable(struct device *dev, unsigned int enabled) -{ - struct nuc900_rtc *rtc = dev_get_drvdata(dev); - - if (enabled) - __raw_writel(__raw_readl(rtc->rtc_reg + REG_RTC_RIER)| - (TICKINTENB), rtc->rtc_reg + REG_RTC_RIER); - else - __raw_writel(__raw_readl(rtc->rtc_reg + REG_RTC_RIER)& - (~TICKINTENB), rtc->rtc_reg + REG_RTC_RIER); - - return 0; -} - static int nuc900_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct nuc900_rtc *rtc = dev_get_drvdata(dev); @@ -234,7 +220,6 @@ static struct rtc_class_ops nuc900_rtc_ops = { .read_alarm = nuc900_rtc_read_alarm, .set_alarm = nuc900_rtc_set_alarm, .alarm_irq_enable = nuc900_alarm_irq_enable, - .update_irq_enable = nuc900_update_irq_enable, }; static int __devinit nuc900_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index e72b523c79a5..de0dd7b1f146 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -135,42 +135,17 @@ static irqreturn_t rtc_irq(int irq, void *rtc) return IRQ_HANDLED; } -#ifdef CONFIG_RTC_INTF_DEV - -static int -omap_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int omap_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { u8 reg; - switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: - case RTC_UIE_OFF: - case RTC_UIE_ON: - break; - default: - return -ENOIOCTLCMD; - } - local_irq_disable(); rtc_wait_not_busy(); reg = rtc_read(OMAP_RTC_INTERRUPTS_REG); - switch (cmd) { - /* AIE = Alarm Interrupt Enable */ - case RTC_AIE_OFF: - reg &= ~OMAP_RTC_INTERRUPTS_IT_ALARM; - break; - case RTC_AIE_ON: + if (enabled) reg |= OMAP_RTC_INTERRUPTS_IT_ALARM; - break; - /* UIE = Update Interrupt Enable (1/second) */ - case RTC_UIE_OFF: - reg &= ~OMAP_RTC_INTERRUPTS_IT_TIMER; - break; - case RTC_UIE_ON: - reg |= OMAP_RTC_INTERRUPTS_IT_TIMER; - break; - } + else + reg &= ~OMAP_RTC_INTERRUPTS_IT_ALARM; rtc_wait_not_busy(); rtc_write(reg, OMAP_RTC_INTERRUPTS_REG); local_irq_enable(); @@ -178,10 +153,6 @@ omap_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) return 0; } -#else -#define omap_rtc_ioctl NULL -#endif - /* this hardware doesn't support "don't care" alarm fields */ static int tm2bcd(struct rtc_time *tm) { @@ -304,11 +275,11 @@ static int omap_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) } static struct rtc_class_ops omap_rtc_ops = { - .ioctl = omap_rtc_ioctl, .read_time = omap_rtc_read_time, .set_time = omap_rtc_set_time, .read_alarm = omap_rtc_read_alarm, .set_alarm = omap_rtc_set_alarm, + .alarm_irq_enable = omap_rtc_alarm_irq_enable, }; static int omap_rtc_alarm; diff --git a/drivers/rtc/rtc-pcap.c b/drivers/rtc/rtc-pcap.c index 25c0b3fd44f1..a633abc42896 100644 --- a/drivers/rtc/rtc-pcap.c +++ b/drivers/rtc/rtc-pcap.c @@ -131,18 +131,12 @@ static int pcap_rtc_alarm_irq_enable(struct device *dev, unsigned int en) return pcap_rtc_irq_enable(dev, PCAP_IRQ_TODA, en); } -static int pcap_rtc_update_irq_enable(struct device *dev, unsigned int en) -{ - return pcap_rtc_irq_enable(dev, PCAP_IRQ_1HZ, en); -} - static const struct rtc_class_ops pcap_rtc_ops = { .read_time = pcap_rtc_read_time, .read_alarm = pcap_rtc_read_alarm, .set_alarm = pcap_rtc_set_alarm, .set_mmss = pcap_rtc_set_mmss, .alarm_irq_enable = pcap_rtc_alarm_irq_enable, - .update_irq_enable = pcap_rtc_update_irq_enable, }; static int __devinit pcap_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-pcf50633.c b/drivers/rtc/rtc-pcf50633.c index 16edf94ab42f..f90c574f9d05 100644 --- a/drivers/rtc/rtc-pcf50633.c +++ b/drivers/rtc/rtc-pcf50633.c @@ -106,25 +106,6 @@ pcf50633_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int -pcf50633_rtc_update_irq_enable(struct device *dev, unsigned int enabled) -{ - struct pcf50633_rtc *rtc = dev_get_drvdata(dev); - int err; - - if (enabled) - err = pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_SECOND); - else - err = pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_SECOND); - - if (err < 0) - return err; - - rtc->second_enabled = enabled; - - return 0; -} - static int pcf50633_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct pcf50633_rtc *rtc; @@ -262,8 +243,7 @@ static struct rtc_class_ops pcf50633_rtc_ops = { .set_time = pcf50633_rtc_set_time, .read_alarm = pcf50633_rtc_read_alarm, .set_alarm = pcf50633_rtc_set_alarm, - .alarm_irq_enable = pcf50633_rtc_alarm_irq_enable, - .update_irq_enable = pcf50633_rtc_update_irq_enable, + .alarm_irq_enable = pcf50633_rtc_alarm_irq_enable, }; static void pcf50633_rtc_irq(int irq, void *data) diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c index bbdb2f02798a..1d28d4451dae 100644 --- a/drivers/rtc/rtc-pl030.c +++ b/drivers/rtc/rtc-pl030.c @@ -35,11 +35,6 @@ static irqreturn_t pl030_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static int pl030_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) -{ - return -ENOIOCTLCMD; -} - static int pl030_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) { struct pl030_rtc *rtc = dev_get_drvdata(dev); @@ -96,14 +91,13 @@ static int pl030_set_time(struct device *dev, struct rtc_time *tm) } static const struct rtc_class_ops pl030_ops = { - .ioctl = pl030_ioctl, .read_time = pl030_read_time, .set_time = pl030_set_time, .read_alarm = pl030_read_alarm, .set_alarm = pl030_set_alarm, }; -static int pl030_probe(struct amba_device *dev, struct amba_id *id) +static int pl030_probe(struct amba_device *dev, const struct amba_id *id) { struct pl030_rtc *rtc; int ret; diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c index b7a6690e5b35..ff1b84bd9bb5 100644 --- a/drivers/rtc/rtc-pl031.c +++ b/drivers/rtc/rtc-pl031.c @@ -293,57 +293,6 @@ static int pl031_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) return ret; } -/* Periodic interrupt is only available in ST variants. */ -static int pl031_irq_set_state(struct device *dev, int enabled) -{ - struct pl031_local *ldata = dev_get_drvdata(dev); - - if (enabled == 1) { - /* Clear any pending timer interrupt. */ - writel(RTC_BIT_PI, ldata->base + RTC_ICR); - - writel(readl(ldata->base + RTC_IMSC) | RTC_BIT_PI, - ldata->base + RTC_IMSC); - - /* Now start the timer */ - writel(readl(ldata->base + RTC_TCR) | RTC_TCR_EN, - ldata->base + RTC_TCR); - - } else { - writel(readl(ldata->base + RTC_IMSC) & (~RTC_BIT_PI), - ldata->base + RTC_IMSC); - - /* Also stop the timer */ - writel(readl(ldata->base + RTC_TCR) & (~RTC_TCR_EN), - ldata->base + RTC_TCR); - } - /* Wait at least 1 RTC32 clock cycle to ensure next access - * to RTC_TCR will succeed. - */ - udelay(40); - - return 0; -} - -static int pl031_irq_set_freq(struct device *dev, int freq) -{ - struct pl031_local *ldata = dev_get_drvdata(dev); - - /* Cant set timer if it is already enabled */ - if (readl(ldata->base + RTC_TCR) & RTC_TCR_EN) { - dev_err(dev, "can't change frequency while timer enabled\n"); - return -EINVAL; - } - - /* If self start bit in RTC_TCR is set timer will start here, - * but we never set that bit. Instead we start the timer when - * set_state is called with enabled == 1. - */ - writel(RTC_TIMER_FREQ / freq, ldata->base + RTC_TLR); - - return 0; -} - static int pl031_remove(struct amba_device *adev) { struct pl031_local *ldata = dev_get_drvdata(&adev->dev); @@ -358,7 +307,7 @@ static int pl031_remove(struct amba_device *adev) return 0; } -static int pl031_probe(struct amba_device *adev, struct amba_id *id) +static int pl031_probe(struct amba_device *adev, const struct amba_id *id) { int ret; struct pl031_local *ldata; @@ -440,8 +389,6 @@ static struct rtc_class_ops stv1_pl031_ops = { .read_alarm = pl031_read_alarm, .set_alarm = pl031_set_alarm, .alarm_irq_enable = pl031_alarm_irq_enable, - .irq_set_state = pl031_irq_set_state, - .irq_set_freq = pl031_irq_set_freq, }; /* And the second ST derivative */ @@ -451,8 +398,6 @@ static struct rtc_class_ops stv2_pl031_ops = { .read_alarm = pl031_stv2_read_alarm, .set_alarm = pl031_stv2_set_alarm, .alarm_irq_enable = pl031_alarm_irq_enable, - .irq_set_state = pl031_irq_set_state, - .irq_set_freq = pl031_irq_set_freq, }; static struct amba_id pl031_ids[] = { diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c index c086fc30a84c..0a59fda5c09d 100644 --- a/drivers/rtc/rtc-proc.c +++ b/drivers/rtc/rtc-proc.c @@ -69,6 +69,14 @@ static int rtc_proc_show(struct seq_file *seq, void *offset) alrm.enabled ? "yes" : "no"); seq_printf(seq, "alrm_pending\t: %s\n", alrm.pending ? "yes" : "no"); + seq_printf(seq, "update IRQ enabled\t: %s\n", + (rtc->uie_rtctimer.enabled) ? "yes" : "no"); + seq_printf(seq, "periodic IRQ enabled\t: %s\n", + (rtc->pie_enabled) ? "yes" : "no"); + seq_printf(seq, "periodic IRQ frequency\t: %d\n", + rtc->irq_freq); + seq_printf(seq, "max user IRQ frequency\t: %d\n", + rtc->max_user_freq); } seq_printf(seq, "24hr\t\t: yes\n"); @@ -81,12 +89,16 @@ static int rtc_proc_show(struct seq_file *seq, void *offset) static int rtc_proc_open(struct inode *inode, struct file *file) { + int ret; struct rtc_device *rtc = PDE(inode)->data; if (!try_module_get(THIS_MODULE)) return -ENODEV; - return single_open(file, rtc_proc_show, rtc); + ret = single_open(file, rtc_proc_show, rtc); + if (ret) + module_put(THIS_MODULE); + return ret; } static int rtc_proc_release(struct inode *inode, struct file *file) diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c index 29e867a1aaa8..fc9f4991574b 100644 --- a/drivers/rtc/rtc-pxa.c +++ b/drivers/rtc/rtc-pxa.c @@ -209,32 +209,6 @@ static void pxa_rtc_release(struct device *dev) free_irq(pxa_rtc->irq_1Hz, dev); } -static int pxa_periodic_irq_set_freq(struct device *dev, int freq) -{ - struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev); - int period_ms; - - if (freq < 1 || freq > MAXFREQ_PERIODIC) - return -EINVAL; - - period_ms = 1000 / freq; - rtc_writel(pxa_rtc, PIAR, period_ms); - - return 0; -} - -static int pxa_periodic_irq_set_state(struct device *dev, int enabled) -{ - struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev); - - if (enabled) - rtsr_set_bits(pxa_rtc, RTSR_PIALE | RTSR_PICE); - else - rtsr_clear_bits(pxa_rtc, RTSR_PIALE | RTSR_PICE); - - return 0; -} - static int pxa_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev); @@ -250,21 +224,6 @@ static int pxa_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int pxa_update_irq_enable(struct device *dev, unsigned int enabled) -{ - struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev); - - spin_lock_irq(&pxa_rtc->lock); - - if (enabled) - rtsr_set_bits(pxa_rtc, RTSR_HZE); - else - rtsr_clear_bits(pxa_rtc, RTSR_HZE); - - spin_unlock_irq(&pxa_rtc->lock); - return 0; -} - static int pxa_rtc_read_time(struct device *dev, struct rtc_time *tm) { struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev); @@ -346,10 +305,7 @@ static const struct rtc_class_ops pxa_rtc_ops = { .read_alarm = pxa_rtc_read_alarm, .set_alarm = pxa_rtc_set_alarm, .alarm_irq_enable = pxa_alarm_irq_enable, - .update_irq_enable = pxa_update_irq_enable, .proc = pxa_rtc_proc, - .irq_set_state = pxa_periodic_irq_set_state, - .irq_set_freq = pxa_periodic_irq_set_freq, }; static int __init pxa_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-rp5c01.c b/drivers/rtc/rtc-rp5c01.c index 36eb66184461..694da39b6dd2 100644 --- a/drivers/rtc/rtc-rp5c01.c +++ b/drivers/rtc/rtc-rp5c01.c @@ -76,7 +76,7 @@ static inline unsigned int rp5c01_read(struct rp5c01_priv *priv, static inline void rp5c01_write(struct rp5c01_priv *priv, unsigned int val, unsigned int reg) { - return __raw_writel(val, &priv->regs[reg]); + __raw_writel(val, &priv->regs[reg]); } static void rp5c01_lock(struct rp5c01_priv *priv) diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c index dd14e202c2c8..85c1b848dd72 100644 --- a/drivers/rtc/rtc-rs5c372.c +++ b/drivers/rtc/rtc-rs5c372.c @@ -281,10 +281,8 @@ static int rs5c372_rtc_set_time(struct device *dev, struct rtc_time *tm) return rs5c372_set_datetime(to_i2c_client(dev), tm); } -#if defined(CONFIG_RTC_INTF_DEV) || defined(CONFIG_RTC_INTF_DEV_MODULE) -static int -rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int rs5c_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct i2c_client *client = to_i2c_client(dev); struct rs5c372 *rs5c = i2c_get_clientdata(client); @@ -292,45 +290,19 @@ rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) int status, addr; buf = rs5c->regs[RS5C_REG_CTRL1]; - switch (cmd) { - case RTC_UIE_OFF: - case RTC_UIE_ON: - /* some 327a modes use a different IRQ pin for 1Hz irqs */ - if (rs5c->type == rtc_rs5c372a - && (buf & RS5C372A_CTRL1_SL1)) - return -ENOIOCTLCMD; - case RTC_AIE_OFF: - case RTC_AIE_ON: - /* these irq management calls only make sense for chips - * which are wired up to an IRQ. - */ - if (!rs5c->has_irq) - return -ENOIOCTLCMD; - break; - default: - return -ENOIOCTLCMD; - } + + if (!rs5c->has_irq) + return -EINVAL; status = rs5c_get_regs(rs5c); if (status < 0) return status; addr = RS5C_ADDR(RS5C_REG_CTRL1); - switch (cmd) { - case RTC_AIE_OFF: /* alarm off */ - buf &= ~RS5C_CTRL1_AALE; - break; - case RTC_AIE_ON: /* alarm on */ + if (enabled) buf |= RS5C_CTRL1_AALE; - break; - case RTC_UIE_OFF: /* update off */ - buf &= ~RS5C_CTRL1_CT_MASK; - break; - case RTC_UIE_ON: /* update on */ - buf &= ~RS5C_CTRL1_CT_MASK; - buf |= RS5C_CTRL1_CT4; - break; - } + else + buf &= ~RS5C_CTRL1_AALE; if (i2c_smbus_write_byte_data(client, addr, buf) < 0) { printk(KERN_WARNING "%s: can't update alarm\n", @@ -342,10 +314,6 @@ rs5c_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) return status; } -#else -#define rs5c_rtc_ioctl NULL -#endif - /* NOTE: Since RTC_WKALM_{RD,SET} were originally defined for EFI, * which only exposes a polled programming interface; and since @@ -461,11 +429,11 @@ static int rs5c372_rtc_proc(struct device *dev, struct seq_file *seq) static const struct rtc_class_ops rs5c372_rtc_ops = { .proc = rs5c372_rtc_proc, - .ioctl = rs5c_rtc_ioctl, .read_time = rs5c372_rtc_read_time, .set_time = rs5c372_rtc_set_time, .read_alarm = rs5c_read_alarm, .set_alarm = rs5c_set_alarm, + .alarm_irq_enable = rs5c_rtc_alarm_irq_enable, }; #if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE) diff --git a/drivers/rtc/rtc-rx8025.c b/drivers/rtc/rtc-rx8025.c index af32a62e12a8..fde172fb2abe 100644 --- a/drivers/rtc/rtc-rx8025.c +++ b/drivers/rtc/rtc-rx8025.c @@ -424,37 +424,12 @@ static int rx8025_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int rx8025_irq_set_state(struct device *dev, int enabled) -{ - struct i2c_client *client = to_i2c_client(dev); - struct rx8025_data *rx8025 = i2c_get_clientdata(client); - int ctrl1; - int err; - - if (client->irq <= 0) - return -ENXIO; - - ctrl1 = rx8025->ctrl1 & ~RX8025_BIT_CTRL1_CT; - if (enabled) - ctrl1 |= RX8025_BIT_CTRL1_CT_1HZ; - if (ctrl1 != rx8025->ctrl1) { - rx8025->ctrl1 = ctrl1; - err = rx8025_write_reg(rx8025->client, RX8025_REG_CTRL1, - rx8025->ctrl1); - if (err) - return err; - } - - return 0; -} - static struct rtc_class_ops rx8025_rtc_ops = { .read_time = rx8025_get_time, .set_time = rx8025_set_time, .read_alarm = rx8025_read_alarm, .set_alarm = rx8025_set_alarm, .alarm_irq_enable = rx8025_alarm_irq_enable, - .irq_set_state = rx8025_irq_set_state, }; /* diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index cf953ecbfca9..714964913e5e 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -77,47 +77,18 @@ static irqreturn_t s3c_rtc_tickirq(int irq, void *id) } /* Update control registers */ -static void s3c_rtc_setaie(int to) +static int s3c_rtc_setaie(struct device *dev, unsigned int enabled) { unsigned int tmp; - pr_debug("%s: aie=%d\n", __func__, to); + pr_debug("%s: aie=%d\n", __func__, enabled); tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN; - if (to) + if (enabled) tmp |= S3C2410_RTCALM_ALMEN; writeb(tmp, s3c_rtc_base + S3C2410_RTCALM); -} - -static int s3c_rtc_setpie(struct device *dev, int enabled) -{ - unsigned int tmp; - - pr_debug("%s: pie=%d\n", __func__, enabled); - - spin_lock_irq(&s3c_rtc_pie_lock); - - if (s3c_rtc_cpu_type == TYPE_S3C64XX) { - tmp = readw(s3c_rtc_base + S3C2410_RTCCON); - tmp &= ~S3C64XX_RTCCON_TICEN; - - if (enabled) - tmp |= S3C64XX_RTCCON_TICEN; - - writew(tmp, s3c_rtc_base + S3C2410_RTCCON); - } else { - tmp = readb(s3c_rtc_base + S3C2410_TICNT); - tmp &= ~S3C2410_TICNT_ENABLE; - - if (enabled) - tmp |= S3C2410_TICNT_ENABLE; - - writeb(tmp, s3c_rtc_base + S3C2410_TICNT); - } - - spin_unlock_irq(&s3c_rtc_pie_lock); return 0; } @@ -308,7 +279,7 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) writeb(alrm_en, base + S3C2410_RTCALM); - s3c_rtc_setaie(alrm->enabled); + s3c_rtc_setaie(dev, alrm->enabled); return 0; } @@ -377,8 +348,6 @@ static const struct rtc_class_ops s3c_rtcops = { .set_time = s3c_rtc_settime, .read_alarm = s3c_rtc_getalarm, .set_alarm = s3c_rtc_setalarm, - .irq_set_freq = s3c_rtc_setfreq, - .irq_set_state = s3c_rtc_setpie, .proc = s3c_rtc_proc, .alarm_irq_enable = s3c_rtc_setaie, }; @@ -440,7 +409,7 @@ static int __devexit s3c_rtc_remove(struct platform_device *dev) rtc_device_unregister(rtc); s3c_rtc_setpie(&dev->dev, 0); - s3c_rtc_setaie(0); + s3c_rtc_setaie(&dev->dev, 0); clk_disable(rtc_clk); clk_put(rtc_clk); diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 88ea52b8647a..0b40bb88a884 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -43,7 +43,6 @@ #define RTC_DEF_TRIM 0 static const unsigned long RTC_FREQ = 1024; -static unsigned long timer_freq; static struct rtc_time rtc_alarm; static DEFINE_SPINLOCK(sa1100_rtc_lock); @@ -156,114 +155,11 @@ static irqreturn_t sa1100_rtc_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static int sa1100_irq_set_freq(struct device *dev, int freq) -{ - if (freq < 1 || freq > timer_freq) { - return -EINVAL; - } else { - struct rtc_device *rtc = (struct rtc_device *)dev; - - rtc->irq_freq = freq; - - return 0; - } -} - -static int rtc_timer1_count; - -static int sa1100_irq_set_state(struct device *dev, int enabled) -{ - spin_lock_irq(&sa1100_rtc_lock); - if (enabled) { - struct rtc_device *rtc = (struct rtc_device *)dev; - - OSMR1 = timer_freq / rtc->irq_freq + OSCR; - OIER |= OIER_E1; - rtc_timer1_count = 1; - } else { - OIER &= ~OIER_E1; - } - spin_unlock_irq(&sa1100_rtc_lock); - - return 0; -} - -static inline int sa1100_timer1_retrigger(struct rtc_device *rtc) -{ - unsigned long diff; - unsigned long period = timer_freq / rtc->irq_freq; - - spin_lock_irq(&sa1100_rtc_lock); - - do { - OSMR1 += period; - diff = OSMR1 - OSCR; - /* If OSCR > OSMR1, diff is a very large number (unsigned - * math). This means we have a lost interrupt. */ - } while (diff > period); - OIER |= OIER_E1; - - spin_unlock_irq(&sa1100_rtc_lock); - - return 0; -} - -static irqreturn_t timer1_interrupt(int irq, void *dev_id) -{ - struct platform_device *pdev = to_platform_device(dev_id); - struct rtc_device *rtc = platform_get_drvdata(pdev); - - /* - * If we match for the first time, rtc_timer1_count will be 1. - * Otherwise, we wrapped around (very unlikely but - * still possible) so compute the amount of missed periods. - * The match reg is updated only when the data is actually retrieved - * to avoid unnecessary interrupts. - */ - OSSR = OSSR_M1; /* clear match on timer1 */ - - rtc_update_irq(rtc, rtc_timer1_count, RTC_PF | RTC_IRQF); - - if (rtc_timer1_count == 1) - rtc_timer1_count = - (rtc->irq_freq * ((1 << 30) / (timer_freq >> 2))); - - /* retrigger. */ - sa1100_timer1_retrigger(rtc); - - return IRQ_HANDLED; -} - -static int sa1100_rtc_read_callback(struct device *dev, int data) -{ - if (data & RTC_PF) { - struct rtc_device *rtc = (struct rtc_device *)dev; - - /* interpolate missed periods and set match for the next */ - unsigned long period = timer_freq / rtc->irq_freq; - unsigned long oscr = OSCR; - unsigned long osmr1 = OSMR1; - unsigned long missed = (oscr - osmr1)/period; - data += missed << 8; - OSSR = OSSR_M1; /* clear match on timer 1 */ - OSMR1 = osmr1 + (missed + 1)*period; - /* Ensure we didn't miss another match in the mean time. - * Here we compare (match - OSCR) 8 instead of 0 -- - * see comment in pxa_timer_interrupt() for explanation. - */ - while ((signed long)((osmr1 = OSMR1) - OSCR) <= 8) { - data += 0x100; - OSSR = OSSR_M1; /* clear match on timer 1 */ - OSMR1 = osmr1 + period; - } - } - return data; -} - static int sa1100_rtc_open(struct device *dev) { int ret; - struct rtc_device *rtc = (struct rtc_device *)dev; + struct platform_device *plat_dev = to_platform_device(dev); + struct rtc_device *rtc = platform_get_drvdata(plat_dev); ret = request_irq(IRQ_RTC1Hz, sa1100_rtc_interrupt, IRQF_DISABLED, "rtc 1Hz", dev); @@ -277,19 +173,11 @@ static int sa1100_rtc_open(struct device *dev) dev_err(dev, "IRQ %d already in use.\n", IRQ_RTCAlrm); goto fail_ai; } - ret = request_irq(IRQ_OST1, timer1_interrupt, IRQF_DISABLED, - "rtc timer", dev); - if (ret) { - dev_err(dev, "IRQ %d already in use.\n", IRQ_OST1); - goto fail_pi; - } rtc->max_user_freq = RTC_FREQ; - sa1100_irq_set_freq(dev, RTC_FREQ); + rtc_irq_set_freq(rtc, NULL, RTC_FREQ); return 0; - fail_pi: - free_irq(IRQ_RTCAlrm, dev); fail_ai: free_irq(IRQ_RTC1Hz, dev); fail_ui: @@ -304,38 +192,19 @@ static void sa1100_rtc_release(struct device *dev) OSSR = OSSR_M1; spin_unlock_irq(&sa1100_rtc_lock); - free_irq(IRQ_OST1, dev); free_irq(IRQ_RTCAlrm, dev); free_irq(IRQ_RTC1Hz, dev); } - -static int sa1100_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int sa1100_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { - switch (cmd) { - case RTC_AIE_OFF: - spin_lock_irq(&sa1100_rtc_lock); - RTSR &= ~RTSR_ALE; - spin_unlock_irq(&sa1100_rtc_lock); - return 0; - case RTC_AIE_ON: - spin_lock_irq(&sa1100_rtc_lock); + spin_lock_irq(&sa1100_rtc_lock); + if (enabled) RTSR |= RTSR_ALE; - spin_unlock_irq(&sa1100_rtc_lock); - return 0; - case RTC_UIE_OFF: - spin_lock_irq(&sa1100_rtc_lock); - RTSR &= ~RTSR_HZE; - spin_unlock_irq(&sa1100_rtc_lock); - return 0; - case RTC_UIE_ON: - spin_lock_irq(&sa1100_rtc_lock); - RTSR |= RTSR_HZE; - spin_unlock_irq(&sa1100_rtc_lock); - return 0; - } - return -ENOIOCTLCMD; + else + RTSR &= ~RTSR_ALE; + spin_unlock_irq(&sa1100_rtc_lock); + return 0; } static int sa1100_rtc_read_time(struct device *dev, struct rtc_time *tm) @@ -385,39 +254,27 @@ static int sa1100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) static int sa1100_rtc_proc(struct device *dev, struct seq_file *seq) { - struct rtc_device *rtc = (struct rtc_device *)dev; - - seq_printf(seq, "trim/divider\t: 0x%08x\n", (u32) RTTR); - seq_printf(seq, "update_IRQ\t: %s\n", - (RTSR & RTSR_HZE) ? "yes" : "no"); - seq_printf(seq, "periodic_IRQ\t: %s\n", - (OIER & OIER_E1) ? "yes" : "no"); - seq_printf(seq, "periodic_freq\t: %d\n", rtc->irq_freq); - seq_printf(seq, "RTSR\t\t: 0x%08x\n", (u32)RTSR); + seq_printf(seq, "trim/divider\t\t: 0x%08x\n", (u32) RTTR); + seq_printf(seq, "RTSR\t\t\t: 0x%08x\n", (u32)RTSR); return 0; } static const struct rtc_class_ops sa1100_rtc_ops = { .open = sa1100_rtc_open, - .read_callback = sa1100_rtc_read_callback, .release = sa1100_rtc_release, - .ioctl = sa1100_rtc_ioctl, .read_time = sa1100_rtc_read_time, .set_time = sa1100_rtc_set_time, .read_alarm = sa1100_rtc_read_alarm, .set_alarm = sa1100_rtc_set_alarm, .proc = sa1100_rtc_proc, - .irq_set_freq = sa1100_irq_set_freq, - .irq_set_state = sa1100_irq_set_state, + .alarm_irq_enable = sa1100_rtc_alarm_irq_enable, }; static int sa1100_rtc_probe(struct platform_device *pdev) { struct rtc_device *rtc; - timer_freq = get_clock_tick_rate(); - /* * According to the manual we should be able to let RTTR be zero * and then a default diviser for a 32.768KHz clock is used. @@ -443,11 +300,6 @@ static int sa1100_rtc_probe(struct platform_device *pdev) platform_set_drvdata(pdev, rtc); - /* Set the irq_freq */ - /*TODO: Find out who is messing with this value after we initialize - * it here.*/ - rtc->irq_freq = RTC_FREQ; - /* Fix for a nasty initialization problem the in SA11xx RTSR register. * See also the comments in sa1100_rtc_interrupt(). * diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index 06e41ed93230..e55dc1ac83ab 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -344,29 +344,10 @@ static inline void sh_rtc_setcie(struct device *dev, unsigned int enable) spin_unlock_irq(&rtc->lock); } -static int sh_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +static int sh_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { - struct sh_rtc *rtc = dev_get_drvdata(dev); - unsigned int ret = 0; - - switch (cmd) { - case RTC_AIE_OFF: - case RTC_AIE_ON: - sh_rtc_setaie(dev, cmd == RTC_AIE_ON); - break; - case RTC_UIE_OFF: - rtc->periodic_freq &= ~PF_OXS; - sh_rtc_setcie(dev, 0); - break; - case RTC_UIE_ON: - rtc->periodic_freq |= PF_OXS; - sh_rtc_setcie(dev, 1); - break; - default: - ret = -ENOIOCTLCMD; - } - - return ret; + sh_rtc_setaie(dev, enabled); + return 0; } static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm) @@ -596,14 +577,12 @@ static int sh_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm) } static struct rtc_class_ops sh_rtc_ops = { - .ioctl = sh_rtc_ioctl, .read_time = sh_rtc_read_time, .set_time = sh_rtc_set_time, .read_alarm = sh_rtc_read_alarm, .set_alarm = sh_rtc_set_alarm, - .irq_set_state = sh_rtc_irq_set_state, - .irq_set_freq = sh_rtc_irq_set_freq, .proc = sh_rtc_proc, + .alarm_irq_enable = sh_rtc_alarm_irq_enable, }; static int __init sh_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c index 7e7d0c806f2d..572e9534b591 100644 --- a/drivers/rtc/rtc-stmp3xxx.c +++ b/drivers/rtc/rtc-stmp3xxx.c @@ -115,19 +115,6 @@ static int stmp3xxx_alarm_irq_enable(struct device *dev, unsigned int enabled) return 0; } -static int stmp3xxx_update_irq_enable(struct device *dev, unsigned int enabled) -{ - struct stmp3xxx_rtc_data *rtc_data = dev_get_drvdata(dev); - - if (enabled) - stmp3xxx_setl(BM_RTC_CTRL_ONEMSEC_IRQ_EN, - rtc_data->io + HW_RTC_CTRL); - else - stmp3xxx_clearl(BM_RTC_CTRL_ONEMSEC_IRQ_EN, - rtc_data->io + HW_RTC_CTRL); - return 0; -} - static int stmp3xxx_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) { struct stmp3xxx_rtc_data *rtc_data = dev_get_drvdata(dev); @@ -149,8 +136,6 @@ static int stmp3xxx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) static struct rtc_class_ops stmp3xxx_rtc_ops = { .alarm_irq_enable = stmp3xxx_alarm_irq_enable, - .update_irq_enable = - stmp3xxx_update_irq_enable, .read_time = stmp3xxx_rtc_gettime, .set_mmss = stmp3xxx_rtc_set_mmss, .read_alarm = stmp3xxx_rtc_read_alarm, diff --git a/drivers/rtc/rtc-test.c b/drivers/rtc/rtc-test.c index 51725f7755b0..7e96254bd365 100644 --- a/drivers/rtc/rtc-test.c +++ b/drivers/rtc/rtc-test.c @@ -50,24 +50,9 @@ static int test_rtc_proc(struct device *dev, struct seq_file *seq) return 0; } -static int test_rtc_ioctl(struct device *dev, unsigned int cmd, - unsigned long arg) +static int test_rtc_alarm_irq_enable(struct device *dev, unsigned int enable) { - /* We do support interrupts, they're generated - * using the sysfs interface. - */ - switch (cmd) { - case RTC_PIE_ON: - case RTC_PIE_OFF: - case RTC_UIE_ON: - case RTC_UIE_OFF: - case RTC_AIE_ON: - case RTC_AIE_OFF: - return 0; - - default: - return -ENOIOCTLCMD; - } + return 0; } static const struct rtc_class_ops test_rtc_ops = { @@ -76,7 +61,7 @@ static const struct rtc_class_ops test_rtc_ops = { .read_alarm = test_rtc_read_alarm, .set_alarm = test_rtc_set_alarm, .set_mmss = test_rtc_set_mmss, - .ioctl = test_rtc_ioctl, + .alarm_irq_enable = test_rtc_alarm_irq_enable, }; static ssize_t test_irq_show(struct device *dev, @@ -93,11 +78,16 @@ static ssize_t test_irq_store(struct device *dev, struct rtc_device *rtc = platform_get_drvdata(plat_dev); retval = count; - if (strncmp(buf, "tick", 4) == 0) + if (strncmp(buf, "tick", 4) == 0 && rtc->pie_enabled) rtc_update_irq(rtc, 1, RTC_PF | RTC_IRQF); - else if (strncmp(buf, "alarm", 5) == 0) - rtc_update_irq(rtc, 1, RTC_AF | RTC_IRQF); - else if (strncmp(buf, "update", 6) == 0) + else if (strncmp(buf, "alarm", 5) == 0) { + struct rtc_wkalrm alrm; + int err = rtc_read_alarm(rtc, &alrm); + + if (!err && alrm.enabled) + rtc_update_irq(rtc, 1, RTC_AF | RTC_IRQF); + + } else if (strncmp(buf, "update", 6) == 0 && rtc->uie_rtctimer.enabled) rtc_update_irq(rtc, 1, RTC_UF | RTC_IRQF); else retval = -EINVAL; diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c index ed1b86828124..f9a2799c44d6 100644 --- a/drivers/rtc/rtc-twl.c +++ b/drivers/rtc/rtc-twl.c @@ -213,18 +213,6 @@ static int twl_rtc_alarm_irq_enable(struct device *dev, unsigned enabled) return ret; } -static int twl_rtc_update_irq_enable(struct device *dev, unsigned enabled) -{ - int ret; - - if (enabled) - ret = set_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M); - else - ret = mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M); - - return ret; -} - /* * Gets current TWL RTC time and date parameters. * @@ -433,7 +421,6 @@ static struct rtc_class_ops twl_rtc_ops = { .read_alarm = twl_rtc_read_alarm, .set_alarm = twl_rtc_set_alarm, .alarm_irq_enable = twl_rtc_alarm_irq_enable, - .update_irq_enable = twl_rtc_update_irq_enable, }; /*----------------------------------------------------------------------*/ diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c index c3244244e8cf..c5698cda366a 100644 --- a/drivers/rtc/rtc-vr41xx.c +++ b/drivers/rtc/rtc-vr41xx.c @@ -207,59 +207,9 @@ static int vr41xx_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *wkalrm) return 0; } -static int vr41xx_rtc_irq_set_freq(struct device *dev, int freq) -{ - u64 count; - - if (!is_power_of_2(freq)) - return -EINVAL; - count = RTC_FREQUENCY; - do_div(count, freq); - - spin_lock_irq(&rtc_lock); - - periodic_count = count; - rtc1_write(RTCL1LREG, periodic_count); - rtc1_write(RTCL1HREG, periodic_count >> 16); - - spin_unlock_irq(&rtc_lock); - - return 0; -} - -static int vr41xx_rtc_irq_set_state(struct device *dev, int enabled) -{ - if (enabled) - enable_irq(pie_irq); - else - disable_irq(pie_irq); - - return 0; -} - static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) { switch (cmd) { - case RTC_AIE_ON: - spin_lock_irq(&rtc_lock); - - if (!alarm_enabled) { - enable_irq(aie_irq); - alarm_enabled = 1; - } - - spin_unlock_irq(&rtc_lock); - break; - case RTC_AIE_OFF: - spin_lock_irq(&rtc_lock); - - if (alarm_enabled) { - disable_irq(aie_irq); - alarm_enabled = 0; - } - - spin_unlock_irq(&rtc_lock); - break; case RTC_EPOCH_READ: return put_user(epoch, (unsigned long __user *)arg); case RTC_EPOCH_SET: @@ -275,6 +225,24 @@ static int vr41xx_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long return 0; } +static int vr41xx_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) +{ + spin_lock_irq(&rtc_lock); + if (enabled) { + if (!alarm_enabled) { + enable_irq(aie_irq); + alarm_enabled = 1; + } + } else { + if (alarm_enabled) { + disable_irq(aie_irq); + alarm_enabled = 0; + } + } + spin_unlock_irq(&rtc_lock); + return 0; +} + static irqreturn_t elapsedtime_interrupt(int irq, void *dev_id) { struct platform_device *pdev = (struct platform_device *)dev_id; @@ -310,8 +278,6 @@ static const struct rtc_class_ops vr41xx_rtc_ops = { .set_time = vr41xx_rtc_set_time, .read_alarm = vr41xx_rtc_read_alarm, .set_alarm = vr41xx_rtc_set_alarm, - .irq_set_freq = vr41xx_rtc_irq_set_freq, - .irq_set_state = vr41xx_rtc_irq_set_state, }; static int __devinit rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-wm831x.c b/drivers/rtc/rtc-wm831x.c index 82931dc65c0b..bdc909bd56da 100644 --- a/drivers/rtc/rtc-wm831x.c +++ b/drivers/rtc/rtc-wm831x.c @@ -315,21 +315,6 @@ static int wm831x_rtc_alarm_irq_enable(struct device *dev, return wm831x_rtc_stop_alarm(wm831x_rtc); } -static int wm831x_rtc_update_irq_enable(struct device *dev, - unsigned int enabled) -{ - struct wm831x_rtc *wm831x_rtc = dev_get_drvdata(dev); - int val; - - if (enabled) - val = 1 << WM831X_RTC_PINT_FREQ_SHIFT; - else - val = 0; - - return wm831x_set_bits(wm831x_rtc->wm831x, WM831X_RTC_CONTROL, - WM831X_RTC_PINT_FREQ_MASK, val); -} - static irqreturn_t wm831x_alm_irq(int irq, void *data) { struct wm831x_rtc *wm831x_rtc = data; @@ -354,7 +339,6 @@ static const struct rtc_class_ops wm831x_rtc_ops = { .read_alarm = wm831x_rtc_readalarm, .set_alarm = wm831x_rtc_setalarm, .alarm_irq_enable = wm831x_rtc_alarm_irq_enable, - .update_irq_enable = wm831x_rtc_update_irq_enable, }; #ifdef CONFIG_PM diff --git a/drivers/rtc/rtc-wm8350.c b/drivers/rtc/rtc-wm8350.c index 3d0dc76b38af..66421426e404 100644 --- a/drivers/rtc/rtc-wm8350.c +++ b/drivers/rtc/rtc-wm8350.c @@ -302,26 +302,6 @@ static int wm8350_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm) return ret; } -static int wm8350_rtc_update_irq_enable(struct device *dev, - unsigned int enabled) -{ - struct wm8350 *wm8350 = dev_get_drvdata(dev); - - /* Suppress duplicate changes since genirq nests enable and - * disable calls. */ - if (enabled == wm8350->rtc.update_enabled) - return 0; - - if (enabled) - wm8350_unmask_irq(wm8350, WM8350_IRQ_RTC_SEC); - else - wm8350_mask_irq(wm8350, WM8350_IRQ_RTC_SEC); - - wm8350->rtc.update_enabled = enabled; - - return 0; -} - static irqreturn_t wm8350_rtc_alarm_handler(int irq, void *data) { struct wm8350 *wm8350 = data; @@ -357,7 +337,6 @@ static const struct rtc_class_ops wm8350_rtc_ops = { .read_alarm = wm8350_rtc_readalarm, .set_alarm = wm8350_rtc_setalarm, .alarm_irq_enable = wm8350_rtc_alarm_irq_enable, - .update_irq_enable = wm8350_rtc_update_irq_enable, }; #ifdef CONFIG_PM |