From f44f7f96a20af16f6f12e1c995576d6becf5f57b Mon Sep 17 00:00:00 2001 From: John Stultz Date: Mon, 21 Feb 2011 22:58:51 -0800 Subject: RTC: Initialize kernel state from RTC Mark Brown pointed out a corner case: that RTC alarms should be allowed to be persistent across reboots if the hardware supported it. The rework of the generic layer to virtualize the RTC alarm virtualized much of the alarm handling, and removed the code used to read the alarm time from the hardware. Mark noted if we want the alarm to be persistent across reboots, we need to re-read the alarm value into the virtualized generic layer at boot up, so that the generic layer properly exposes that value. This patch restores much of the earlier removed rtc_read_alarm code and wires it in so that we set the kernel's alarm value to what we find in the hardware at boot time. NOTE: Not all hardware supports persistent RTC alarm state across system reset. rtc-cmos for example will keep the alarm time, but disables the AIE mode irq. Applications should not expect the RTC alarm to be valid after a system reset. We will preserve what we can, to represent the hardware state at boot, but its not guarenteed. Further, in the future, with multiplexed RTC alarms, the soonest alarm to fire may not be the one set via the /dev/rt ioctls. So an application may set the alarm with RTC_ALM_SET, but after a reset find that RTC_ALM_READ returns an earlier time. Again, we preserve what we can, but applications should not expect the RTC alarm state to persist across a system reset. Big thanks to Mark for pointing out the issue! Thanks also to Marcelo for helping think through the solution. CC: Mark Brown CC: Marcelo Roberto Jimenez CC: Thomas Gleixner CC: Alessandro Zummo CC: rtc-linux@googlegroups.com Reported-by: Mark Brown Signed-off-by: John Stultz --- include/linux/rtc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 89c3e5182991..db3832d5f280 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -227,6 +227,7 @@ extern void rtc_device_unregister(struct rtc_device *rtc); extern int rtc_read_time(struct rtc_device *rtc, struct rtc_time *tm); extern int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm); extern int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs); +int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm); extern int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alrm); extern int rtc_set_alarm(struct rtc_device *rtc, -- cgit v1.2.3-70-g09d2 From 80d4bb515b78f38738f3378fd1be6039063ab040 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Thu, 3 Feb 2011 11:34:50 -0800 Subject: RTC: Cleanup rtc_class_ops->irq_set_state With PIE mode interrupts now emulated in generic code via an hrtimer, no one calls rtc_class_ops->irq_set_state(), so this patch removes it along with driver implementations. CC: Thomas Gleixner CC: Alessandro Zummo CC: Marcelo Roberto Jimenez CC: rtc-linux@googlegroups.com Signed-off-by: John Stultz --- drivers/rtc/rtc-cmos.c | 20 -------------------- drivers/rtc/rtc-davinci.c | 34 ---------------------------------- drivers/rtc/rtc-mrst.c | 20 -------------------- drivers/rtc/rtc-pl031.c | 34 ---------------------------------- drivers/rtc/rtc-pxa.c | 13 ------------- drivers/rtc/rtc-rx8025.c | 25 ------------------------- drivers/rtc/rtc-s3c.c | 32 -------------------------------- drivers/rtc/rtc-sa1100.c | 18 ------------------ drivers/rtc/rtc-sh.c | 1 - drivers/rtc/rtc-vr41xx.c | 11 ----------- include/linux/rtc.h | 1 - 11 files changed, 209 deletions(-) (limited to 'include') diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index c7ff8df347e7..de632e793d46 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -400,25 +400,6 @@ static int cmos_irq_set_freq(struct device *dev, int freq) 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); @@ -502,7 +483,6 @@ static const struct rtc_class_ops cmos_rtc_ops = { .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, }; diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 34647fc1ee98..92da73d40e13 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -473,39 +473,6 @@ 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); @@ -529,7 +496,6 @@ 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, }; diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index 1db62db8469d..4db96fa306fc 100644 --- a/drivers/rtc/rtc-mrst.c +++ b/drivers/rtc/rtc-mrst.c @@ -236,25 +236,6 @@ 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) -{ - 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); - else - mrst_irq_disable(mrst, RTC_PIE); - - spin_unlock_irqrestore(&rtc_lock, flags); - return 0; -} - /* Currently, the vRTC doesn't support UIE ON/OFF */ static int mrst_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { @@ -301,7 +282,6 @@ static const struct rtc_class_ops mrst_rtc_ops = { .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, }; diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c index b7a6690e5b35..0e7c15b24c1c 100644 --- a/drivers/rtc/rtc-pl031.c +++ b/drivers/rtc/rtc-pl031.c @@ -293,38 +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); @@ -440,7 +408,6 @@ 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, }; @@ -451,7 +418,6 @@ 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, }; diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c index 29e867a1aaa8..b216ae5389c8 100644 --- a/drivers/rtc/rtc-pxa.c +++ b/drivers/rtc/rtc-pxa.c @@ -223,18 +223,6 @@ static int pxa_periodic_irq_set_freq(struct device *dev, int freq) 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); @@ -348,7 +336,6 @@ static const struct rtc_class_ops pxa_rtc_ops = { .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, }; 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 b80fa2882408..80fb7e72f9d9 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -93,37 +93,6 @@ static int s3c_rtc_setaie(struct device *dev, unsigned int enabled) return 0; } -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; -} - static int s3c_rtc_setfreq(struct device *dev, int freq) { struct platform_device *pdev = to_platform_device(dev); @@ -380,7 +349,6 @@ static const struct rtc_class_ops s3c_rtcops = { .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, }; diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 5dfe5ffcb0d3..d47b3fc9830f 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -171,23 +171,6 @@ static int sa1100_irq_set_freq(struct device *dev, int freq) 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; @@ -410,7 +393,6 @@ static const struct rtc_class_ops sa1100_rtc_ops = { .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, }; diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index 93314a9e7fa9..ff50a8bc13f6 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -603,7 +603,6 @@ static struct rtc_class_ops sh_rtc_ops = { .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, diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c index 769190ac6d11..86f14909f9db 100644 --- a/drivers/rtc/rtc-vr41xx.c +++ b/drivers/rtc/rtc-vr41xx.c @@ -227,16 +227,6 @@ static int vr41xx_rtc_irq_set_freq(struct device *dev, int freq) 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) { @@ -309,7 +299,6 @@ static const struct rtc_class_ops vr41xx_rtc_ops = { .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/include/linux/rtc.h b/include/linux/rtc.h index db3832d5f280..0e2063acc260 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -148,7 +148,6 @@ struct rtc_class_ops { int (*set_alarm)(struct device *, struct rtc_wkalrm *); int (*proc)(struct device *, struct seq_file *); int (*set_mmss)(struct device *, unsigned long secs); - int (*irq_set_state)(struct device *, int enabled); int (*irq_set_freq)(struct device *, int freq); int (*read_callback)(struct device *, int data); int (*alarm_irq_enable)(struct device *, unsigned int enabled); -- cgit v1.2.3-70-g09d2 From 696160fec162601d06940862b5b3aa4460344c1b Mon Sep 17 00:00:00 2001 From: John Stultz Date: Thu, 3 Feb 2011 12:02:07 -0800 Subject: RTC: Cleanup rtc_class_ops->irq_set_freq() With the generic rtc code now emulating PIE mode irqs via an hrtimer, no one calls the rtc_class_ops->irq_set_freq call. This patch removes the hook and deletes the driver functions if no one else calls them. CC: Thomas Gleixner CC: Alessandro Zummo CC: Marcelo Roberto Jimenez CC: rtc-linux@googlegroups.com Signed-off-by: John Stultz --- drivers/rtc/rtc-cmos.c | 26 -------------------------- drivers/rtc/rtc-davinci.c | 17 ----------------- drivers/rtc/rtc-pl031.c | 21 --------------------- drivers/rtc/rtc-pxa.c | 15 --------------- drivers/rtc/rtc-s3c.c | 1 - drivers/rtc/rtc-sa1100.c | 1 - drivers/rtc/rtc-sh.c | 1 - drivers/rtc/rtc-vr41xx.c | 21 --------------------- include/linux/rtc.h | 2 -- 9 files changed, 105 deletions(-) (limited to 'include') diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index de632e793d46..bdb1f8e2042a 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -375,31 +375,6 @@ 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_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct cmos_rtc *cmos = dev_get_drvdata(dev); @@ -482,7 +457,6 @@ 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, .alarm_irq_enable = cmos_alarm_irq_enable, .update_irq_enable = cmos_update_irq_enable, }; diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 92da73d40e13..dfd98a235ad1 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -473,22 +473,6 @@ static int davinci_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) 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, @@ -496,7 +480,6 @@ 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_freq = davinci_rtc_irq_set_freq, }; static int __init davinci_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c index 0e7c15b24c1c..d829ea63c4fb 100644 --- a/drivers/rtc/rtc-pl031.c +++ b/drivers/rtc/rtc-pl031.c @@ -293,25 +293,6 @@ static int pl031_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) return ret; } -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); @@ -408,7 +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_freq = pl031_irq_set_freq, }; /* And the second ST derivative */ @@ -418,7 +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_freq = pl031_irq_set_freq, }; static struct amba_id pl031_ids[] = { diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c index b216ae5389c8..a1fdc802598a 100644 --- a/drivers/rtc/rtc-pxa.c +++ b/drivers/rtc/rtc-pxa.c @@ -209,20 +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_alarm_irq_enable(struct device *dev, unsigned int enabled) { struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev); @@ -336,7 +322,6 @@ static const struct rtc_class_ops pxa_rtc_ops = { .alarm_irq_enable = pxa_alarm_irq_enable, .update_irq_enable = pxa_update_irq_enable, .proc = pxa_rtc_proc, - .irq_set_freq = pxa_periodic_irq_set_freq, }; static int __init pxa_rtc_probe(struct platform_device *pdev) diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index 80fb7e72f9d9..714964913e5e 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -348,7 +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, .proc = s3c_rtc_proc, .alarm_irq_enable = s3c_rtc_setaie, }; diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index d47b3fc9830f..d1a2b0bc3b24 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -392,7 +392,6 @@ static const struct rtc_class_ops sa1100_rtc_ops = { .read_alarm = sa1100_rtc_read_alarm, .set_alarm = sa1100_rtc_set_alarm, .proc = sa1100_rtc_proc, - .irq_set_freq = sa1100_irq_set_freq, .alarm_irq_enable = sa1100_rtc_alarm_irq_enable, }; diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index ff50a8bc13f6..148544979a54 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -603,7 +603,6 @@ static struct rtc_class_ops sh_rtc_ops = { .set_time = sh_rtc_set_time, .read_alarm = sh_rtc_read_alarm, .set_alarm = sh_rtc_set_alarm, - .irq_set_freq = sh_rtc_irq_set_freq, .proc = sh_rtc_proc, .alarm_irq_enable = sh_rtc_alarm_irq_enable, }; diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c index 86f14909f9db..c5698cda366a 100644 --- a/drivers/rtc/rtc-vr41xx.c +++ b/drivers/rtc/rtc-vr41xx.c @@ -207,26 +207,6 @@ 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_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) { switch (cmd) { @@ -298,7 +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, }; static int __devinit rtc_probe(struct platform_device *pdev) diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 0e2063acc260..741a51cc4460 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -133,7 +133,6 @@ extern struct class *rtc_class; * The (current) exceptions are mostly filesystem hooks: * - the proc() hook for procfs * - non-ioctl() chardev hooks: open(), release(), read_callback() - * - periodic irq calls: irq_set_state(), irq_set_freq() * * REVISIT those periodic irq calls *do* have ops_lock when they're * issued through ioctl() ... @@ -148,7 +147,6 @@ struct rtc_class_ops { int (*set_alarm)(struct device *, struct rtc_wkalrm *); int (*proc)(struct device *, struct seq_file *); int (*set_mmss)(struct device *, unsigned long secs); - int (*irq_set_freq)(struct device *, int freq); int (*read_callback)(struct device *, int data); int (*alarm_irq_enable)(struct device *, unsigned int enabled); int (*update_irq_enable)(struct device *, unsigned int enabled); -- cgit v1.2.3-70-g09d2 From 51ba60c5bb3b0f71bee26404ddc22d8e4109e88a Mon Sep 17 00:00:00 2001 From: John Stultz Date: Thu, 3 Feb 2011 12:13:50 -0800 Subject: RTC: Cleanup rtc_class_ops->update_irq_enable() Now that the generic code handles UIE mode irqs via periodic alarm interrupts, no one calls the rtc_class_ops->update_irq_enable() method anymore. This patch removes the driver hooks and implementations of update_irq_enable if no one else is calling it. CC: Thomas Gleixner CC: Alessandro Zummo CC: Marcelo Roberto Jimenez CC: rtc-linux@googlegroups.com Signed-off-by: John Stultz --- drivers/rtc/rtc-cmos.c | 20 -------------------- drivers/rtc/rtc-ds1511.c | 17 ----------------- drivers/rtc/rtc-ds1553.c | 17 ----------------- drivers/rtc/rtc-ds3232.c | 18 ------------------ drivers/rtc/rtc-jz4740.c | 7 ------- drivers/rtc/rtc-mc13xxx.c | 7 ------- drivers/rtc/rtc-mpc5121.c | 20 -------------------- drivers/rtc/rtc-mxc.c | 7 ------- drivers/rtc/rtc-nuc900.c | 15 --------------- drivers/rtc/rtc-pcap.c | 6 ------ drivers/rtc/rtc-pcf50633.c | 22 +--------------------- drivers/rtc/rtc-pxa.c | 16 ---------------- drivers/rtc/rtc-stmp3xxx.c | 15 --------------- drivers/rtc/rtc-twl.c | 13 ------------- drivers/rtc/rtc-wm831x.c | 16 ---------------- drivers/rtc/rtc-wm8350.c | 21 --------------------- include/linux/rtc.h | 1 - 17 files changed, 1 insertion(+), 237 deletions(-) (limited to 'include') diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index bdb1f8e2042a..dc2a0ba969ce 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -394,25 +394,6 @@ 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) @@ -458,7 +439,6 @@ static const struct rtc_class_ops cmos_rtc_ops = { .set_alarm = cmos_set_alarm, .proc = cmos_procfs, .alarm_irq_enable = cmos_alarm_irq_enable, - .update_irq_enable = cmos_update_irq_enable, }; /*----------------------------------------------------------------*/ 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 950735415a7c..27b7bf672ac6 100644 --- a/drivers/rtc/rtc-ds3232.c +++ b/drivers/rtc/rtc-ds3232.c @@ -339,23 +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; @@ -406,7 +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-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..b40c1ff1ebc8 100644 --- a/drivers/rtc/rtc-mpc5121.c +++ b/drivers/rtc/rtc-mpc5121.c @@ -240,32 +240,12 @@ 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, 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-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-pxa.c b/drivers/rtc/rtc-pxa.c index a1fdc802598a..fc9f4991574b 100644 --- a/drivers/rtc/rtc-pxa.c +++ b/drivers/rtc/rtc-pxa.c @@ -224,21 +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); @@ -320,7 +305,6 @@ 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, }; 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-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-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 diff --git a/include/linux/rtc.h b/include/linux/rtc.h index 741a51cc4460..2ca7e8a78060 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -149,7 +149,6 @@ struct rtc_class_ops { int (*set_mmss)(struct device *, unsigned long secs); int (*read_callback)(struct device *, int data); int (*alarm_irq_enable)(struct device *, unsigned int enabled); - int (*update_irq_enable)(struct device *, unsigned int enabled); }; #define RTC_DEVICE_NAME_SIZE 20 -- cgit v1.2.3-70-g09d2