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author | Paul Mundt <lethal@linux-sh.org> | 2011-03-17 07:44:08 (GMT) |
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committer | Paul Mundt <lethal@linux-sh.org> | 2011-03-17 07:44:08 (GMT) |
commit | 1d2a1959fe534279cf37aba20b08c24c20840e52 (patch) | |
tree | 67c0b9aa7fe22a44bf0b4af88947799203eb8f67 /drivers/rtc/rtc-mrst.c | |
parent | 5a79ce76e9bb8f4b2cd8106ee36d15ee05013bcf (diff) | |
parent | 054cfaacf88865bff1dd58d305443d5d6c068a08 (diff) | |
download | linux-1d2a1959fe534279cf37aba20b08c24c20840e52.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Diffstat (limited to 'drivers/rtc/rtc-mrst.c')
-rw-r--r-- | drivers/rtc/rtc-mrst.c | 62 |
1 files changed, 16 insertions, 46 deletions
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index bcd0cf6..b86bc32 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; |