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Commit 55ba953a authored by Johan Hovold's avatar Johan Hovold Committed by Linus Torvalds
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rtc: omap: add device abstraction 



Add struct omap_rtc to hold previously global data as well as the
IP-block feature flags.

Also convert the register-access macros to proper inline helper functions.

Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Benot Cousson <bcousson@baylibre.com>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Keerthy J <j-keerthy@ti.com>
Tested-by: default avatarFelipe Balbi <balbi@ti.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d17a82e2

drivers/rtc/rtc-omap.c

+133 −106
Original line number Diff line number Diff line
@@ -118,26 +118,42 @@ 
 */

#define OMAP_RTC_HAS_32KCLK_EN		BIT(2)



static void __iomem	*rtc_base;

struct omap_rtc {

	struct rtc_device *rtc;

	void __iomem *base;

	int irq_alarm;

	int irq_timer;

	u8 interrupts_reg;

	unsigned long flags;

};



#define rtc_read(addr)		readb(rtc_base + (addr))

#define rtc_write(val, addr)	writeb(val, rtc_base + (addr))

static inline u8 rtc_read(struct omap_rtc *rtc, unsigned int reg)

{

	return readb(rtc->base + reg);

}



#define rtc_writel(val, addr)	writel(val, rtc_base + (addr))

static inline void rtc_write(struct omap_rtc *rtc, unsigned int reg, u8 val)

{

	writeb(val, rtc->base + reg);

}



static inline void rtc_writel(struct omap_rtc *rtc, unsigned int reg, u32 val)

{

	writel(val, rtc->base + reg);

}



/* we rely on the rtc framework to handle locking (rtc->ops_lock),

 * so the only other requirement is that register accesses which

 * require BUSY to be clear are made with IRQs locally disabled

 */

static void rtc_wait_not_busy(void)

static void rtc_wait_not_busy(struct omap_rtc *rtc)

{

	int	count = 0;

	u8	status;



	/* BUSY may stay active for 1/32768 second (~30 usec) */

	for (count = 0; count < 50; count++) {

		status = rtc_read(OMAP_RTC_STATUS_REG);

		status = rtc_read(rtc, OMAP_RTC_STATUS_REG);

		if ((status & (u8)OMAP_RTC_STATUS_BUSY) == 0)

			break;

		udelay(1);
@@ -145,16 +161,17 @@ static void rtc_wait_not_busy(void) 
	/* now we have ~15 usec to read/write various registers */

}



static irqreturn_t rtc_irq(int irq, void *rtc)

static irqreturn_t rtc_irq(int irq, void *dev_id)

{

	struct omap_rtc		*rtc = dev_id;

	unsigned long		events = 0;

	u8			irq_data;



	irq_data = rtc_read(OMAP_RTC_STATUS_REG);

	irq_data = rtc_read(rtc, OMAP_RTC_STATUS_REG);



	/* alarm irq? */

	if (irq_data & OMAP_RTC_STATUS_ALARM) {

		rtc_write(OMAP_RTC_STATUS_ALARM, OMAP_RTC_STATUS_REG);

		rtc_write(rtc, OMAP_RTC_STATUS_REG, OMAP_RTC_STATUS_ALARM);

		events |= RTC_IRQF | RTC_AF;

	}
@@ -162,23 +179,21 @@ static irqreturn_t rtc_irq(int irq, void *rtc) 
	if (irq_data & OMAP_RTC_STATUS_1S_EVENT)

		events |= RTC_IRQF | RTC_UF;



	rtc_update_irq(rtc, 1, events);

	rtc_update_irq(rtc->rtc, 1, events);



	return IRQ_HANDLED;

}



static int omap_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)

{

	struct omap_rtc *rtc = dev_get_drvdata(dev);

	u8 reg, irqwake_reg = 0;

	struct platform_device *pdev = to_platform_device(dev);

	const struct platform_device_id *id_entry =

					platform_get_device_id(pdev);



	local_irq_disable();

	rtc_wait_not_busy();

	reg = rtc_read(OMAP_RTC_INTERRUPTS_REG);

	if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN)

		irqwake_reg = rtc_read(OMAP_RTC_IRQWAKEEN);

	rtc_wait_not_busy(rtc);

	reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);

	if (rtc->flags & OMAP_RTC_HAS_IRQWAKEEN)

		irqwake_reg = rtc_read(rtc, OMAP_RTC_IRQWAKEEN);



	if (enabled) {

		reg |= OMAP_RTC_INTERRUPTS_IT_ALARM;
@@ -187,10 +202,10 @@ static int omap_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) 
		reg &= ~OMAP_RTC_INTERRUPTS_IT_ALARM;

		irqwake_reg &= ~OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN;

	}

	rtc_wait_not_busy();

	rtc_write(reg, OMAP_RTC_INTERRUPTS_REG);

	if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN)

		rtc_write(irqwake_reg, OMAP_RTC_IRQWAKEEN);

	rtc_wait_not_busy(rtc);

	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, reg);

	if (rtc->flags & OMAP_RTC_HAS_IRQWAKEEN)

		rtc_write(rtc, OMAP_RTC_IRQWAKEEN, irqwake_reg);

	local_irq_enable();



	return 0;
@@ -231,16 +246,18 @@ static void bcd2tm(struct rtc_time *tm) 


static int omap_rtc_read_time(struct device *dev, struct rtc_time *tm)

{

	struct omap_rtc *rtc = dev_get_drvdata(dev);



	/* we don't report wday/yday/isdst ... */

	local_irq_disable();

	rtc_wait_not_busy();

	rtc_wait_not_busy(rtc);



	tm->tm_sec = rtc_read(OMAP_RTC_SECONDS_REG);

	tm->tm_min = rtc_read(OMAP_RTC_MINUTES_REG);

	tm->tm_hour = rtc_read(OMAP_RTC_HOURS_REG);

	tm->tm_mday = rtc_read(OMAP_RTC_DAYS_REG);

	tm->tm_mon = rtc_read(OMAP_RTC_MONTHS_REG);

	tm->tm_year = rtc_read(OMAP_RTC_YEARS_REG);

	tm->tm_sec = rtc_read(rtc, OMAP_RTC_SECONDS_REG);

	tm->tm_min = rtc_read(rtc, OMAP_RTC_MINUTES_REG);

	tm->tm_hour = rtc_read(rtc, OMAP_RTC_HOURS_REG);

	tm->tm_mday = rtc_read(rtc, OMAP_RTC_DAYS_REG);

	tm->tm_mon = rtc_read(rtc, OMAP_RTC_MONTHS_REG);

	tm->tm_year = rtc_read(rtc, OMAP_RTC_YEARS_REG);



	local_irq_enable();
@@ -250,17 +267,19 @@ static int omap_rtc_read_time(struct device *dev, struct rtc_time *tm) 


static int omap_rtc_set_time(struct device *dev, struct rtc_time *tm)

{

	struct omap_rtc *rtc = dev_get_drvdata(dev);



	if (tm2bcd(tm) < 0)

		return -EINVAL;

	local_irq_disable();

	rtc_wait_not_busy();

	rtc_wait_not_busy(rtc);



	rtc_write(tm->tm_year, OMAP_RTC_YEARS_REG);

	rtc_write(tm->tm_mon, OMAP_RTC_MONTHS_REG);

	rtc_write(tm->tm_mday, OMAP_RTC_DAYS_REG);

	rtc_write(tm->tm_hour, OMAP_RTC_HOURS_REG);

	rtc_write(tm->tm_min, OMAP_RTC_MINUTES_REG);

	rtc_write(tm->tm_sec, OMAP_RTC_SECONDS_REG);

	rtc_write(rtc, OMAP_RTC_YEARS_REG, tm->tm_year);

	rtc_write(rtc, OMAP_RTC_MONTHS_REG, tm->tm_mon);

	rtc_write(rtc, OMAP_RTC_DAYS_REG, tm->tm_mday);

	rtc_write(rtc, OMAP_RTC_HOURS_REG, tm->tm_hour);

	rtc_write(rtc, OMAP_RTC_MINUTES_REG, tm->tm_min);

	rtc_write(rtc, OMAP_RTC_SECONDS_REG, tm->tm_sec);



	local_irq_enable();
@@ -269,20 +288,22 @@ static int omap_rtc_set_time(struct device *dev, struct rtc_time *tm) 


static int omap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)

{

	struct omap_rtc *rtc = dev_get_drvdata(dev);



	local_irq_disable();

	rtc_wait_not_busy();

	rtc_wait_not_busy(rtc);



	alm->time.tm_sec = rtc_read(OMAP_RTC_ALARM_SECONDS_REG);

	alm->time.tm_min = rtc_read(OMAP_RTC_ALARM_MINUTES_REG);

	alm->time.tm_hour = rtc_read(OMAP_RTC_ALARM_HOURS_REG);

	alm->time.tm_mday = rtc_read(OMAP_RTC_ALARM_DAYS_REG);

	alm->time.tm_mon = rtc_read(OMAP_RTC_ALARM_MONTHS_REG);

	alm->time.tm_year = rtc_read(OMAP_RTC_ALARM_YEARS_REG);

	alm->time.tm_sec = rtc_read(rtc, OMAP_RTC_ALARM_SECONDS_REG);

	alm->time.tm_min = rtc_read(rtc, OMAP_RTC_ALARM_MINUTES_REG);

	alm->time.tm_hour = rtc_read(rtc, OMAP_RTC_ALARM_HOURS_REG);

	alm->time.tm_mday = rtc_read(rtc, OMAP_RTC_ALARM_DAYS_REG);

	alm->time.tm_mon = rtc_read(rtc, OMAP_RTC_ALARM_MONTHS_REG);

	alm->time.tm_year = rtc_read(rtc, OMAP_RTC_ALARM_YEARS_REG);



	local_irq_enable();



	bcd2tm(&alm->time);

	alm->enabled = !!(rtc_read(OMAP_RTC_INTERRUPTS_REG)

	alm->enabled = !!(rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG)

			& OMAP_RTC_INTERRUPTS_IT_ALARM);



	return 0;
@@ -290,27 +311,25 @@ static int omap_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) 


static int omap_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)

{

	struct omap_rtc *rtc = dev_get_drvdata(dev);

	u8 reg, irqwake_reg = 0;

	struct platform_device *pdev = to_platform_device(dev);

	const struct platform_device_id *id_entry =

					platform_get_device_id(pdev);



	if (tm2bcd(&alm->time) < 0)

		return -EINVAL;



	local_irq_disable();

	rtc_wait_not_busy();

	rtc_wait_not_busy(rtc);



	rtc_write(alm->time.tm_year, OMAP_RTC_ALARM_YEARS_REG);

	rtc_write(alm->time.tm_mon, OMAP_RTC_ALARM_MONTHS_REG);

	rtc_write(alm->time.tm_mday, OMAP_RTC_ALARM_DAYS_REG);

	rtc_write(alm->time.tm_hour, OMAP_RTC_ALARM_HOURS_REG);

	rtc_write(alm->time.tm_min, OMAP_RTC_ALARM_MINUTES_REG);

	rtc_write(alm->time.tm_sec, OMAP_RTC_ALARM_SECONDS_REG);

	rtc_write(rtc, OMAP_RTC_ALARM_YEARS_REG, alm->time.tm_year);

	rtc_write(rtc, OMAP_RTC_ALARM_MONTHS_REG, alm->time.tm_mon);

	rtc_write(rtc, OMAP_RTC_ALARM_DAYS_REG, alm->time.tm_mday);

	rtc_write(rtc, OMAP_RTC_ALARM_HOURS_REG, alm->time.tm_hour);

	rtc_write(rtc, OMAP_RTC_ALARM_MINUTES_REG, alm->time.tm_min);

	rtc_write(rtc, OMAP_RTC_ALARM_SECONDS_REG, alm->time.tm_sec);



	reg = rtc_read(OMAP_RTC_INTERRUPTS_REG);

	if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN)

		irqwake_reg = rtc_read(OMAP_RTC_IRQWAKEEN);

	reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);

	if (rtc->flags & OMAP_RTC_HAS_IRQWAKEEN)

		irqwake_reg = rtc_read(rtc, OMAP_RTC_IRQWAKEEN);



	if (alm->enabled) {

		reg |= OMAP_RTC_INTERRUPTS_IT_ALARM;
@@ -319,9 +338,9 @@ static int omap_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) 
		reg &= ~OMAP_RTC_INTERRUPTS_IT_ALARM;

		irqwake_reg &= ~OMAP_RTC_IRQWAKEEN_ALARM_WAKEEN;

	}

	rtc_write(reg, OMAP_RTC_INTERRUPTS_REG);

	if (id_entry->driver_data & OMAP_RTC_HAS_IRQWAKEEN)

		rtc_write(irqwake_reg, OMAP_RTC_IRQWAKEEN);

	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, reg);

	if (rtc->flags & OMAP_RTC_HAS_IRQWAKEEN)

		rtc_write(rtc, OMAP_RTC_IRQWAKEEN, irqwake_reg);



	local_irq_enable();
@@ -336,9 +355,6 @@ static struct rtc_class_ops omap_rtc_ops = { 
	.alarm_irq_enable = omap_rtc_alarm_irq_enable,

};



static int omap_rtc_alarm;

static int omap_rtc_timer;



#define	OMAP_RTC_DATA_AM3352_IDX	1

#define	OMAP_RTC_DATA_DA830_IDX		2
@@ -372,13 +388,17 @@ MODULE_DEVICE_TABLE(of, omap_rtc_of_match); 


static int __init omap_rtc_probe(struct platform_device *pdev)

{

	struct omap_rtc		*rtc;

	struct resource		*res;

	struct rtc_device	*rtc;

	u8			reg, new_ctrl;

	const struct platform_device_id *id_entry;

	const struct of_device_id *of_id;

	int ret;



	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);

	if (!rtc)

		return -ENOMEM;



	of_id = of_match_device(omap_rtc_of_match, &pdev->dev);

	if (of_id)

		pdev->id_entry = of_id->data;
@@ -389,26 +409,30 @@ static int __init omap_rtc_probe(struct platform_device *pdev) 
		return -ENODEV;

	}



	omap_rtc_timer = platform_get_irq(pdev, 0);

	if (omap_rtc_timer <= 0)

	rtc->flags = id_entry->driver_data;



	rtc->irq_timer = platform_get_irq(pdev, 0);

	if (rtc->irq_timer <= 0)

		return -ENOENT;



	omap_rtc_alarm = platform_get_irq(pdev, 1);

	if (omap_rtc_alarm <= 0)

	rtc->irq_alarm = platform_get_irq(pdev, 1);

	if (rtc->irq_alarm <= 0)

		return -ENOENT;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	rtc_base = devm_ioremap_resource(&pdev->dev, res);

	if (IS_ERR(rtc_base))

		return PTR_ERR(rtc_base);

	rtc->base = devm_ioremap_resource(&pdev->dev, res);

	if (IS_ERR(rtc->base))

		return PTR_ERR(rtc->base);



	platform_set_drvdata(pdev, rtc);



	/* Enable the clock/module so that we can access the registers */

	pm_runtime_enable(&pdev->dev);

	pm_runtime_get_sync(&pdev->dev);



	if (id_entry->driver_data & OMAP_RTC_HAS_KICKER) {

		rtc_writel(KICK0_VALUE, OMAP_RTC_KICK0_REG);

		rtc_writel(KICK1_VALUE, OMAP_RTC_KICK1_REG);

	if (rtc->flags & OMAP_RTC_HAS_KICKER) {

		rtc_writel(rtc, OMAP_RTC_KICK0_REG, KICK0_VALUE);

		rtc_writel(rtc, OMAP_RTC_KICK1_REG, KICK1_VALUE);

	}



	/*
@@ -416,25 +440,26 @@ static int __init omap_rtc_probe(struct platform_device *pdev) 
	 *

	 * NOTE: ALARM2 is not cleared on AM3352 if rtc_write (writeb) is used

	 */

	rtc_writel(0, OMAP_RTC_INTERRUPTS_REG);

	rtc_writel(rtc, OMAP_RTC_INTERRUPTS_REG, 0);



	/* enable RTC functional clock */

	if (id_entry->driver_data & OMAP_RTC_HAS_32KCLK_EN) {

		reg = rtc_read(OMAP_RTC_OSC_REG);

		rtc_writel(reg | OMAP_RTC_OSC_32KCLK_EN, OMAP_RTC_OSC_REG);

	if (rtc->flags & OMAP_RTC_HAS_32KCLK_EN) {

		reg = rtc_read(rtc, OMAP_RTC_OSC_REG);

		rtc_writel(rtc, OMAP_RTC_OSC_REG,

				reg | OMAP_RTC_OSC_32KCLK_EN);

	}



	/* clear old status */

	reg = rtc_read(OMAP_RTC_STATUS_REG);

	reg = rtc_read(rtc, OMAP_RTC_STATUS_REG);

	if (reg & (u8) OMAP_RTC_STATUS_POWER_UP) {

		dev_info(&pdev->dev, "RTC power up reset detected\n");

		rtc_write(OMAP_RTC_STATUS_POWER_UP, OMAP_RTC_STATUS_REG);

		rtc_write(rtc, OMAP_RTC_STATUS_REG, OMAP_RTC_STATUS_POWER_UP);

	}

	if (reg & (u8) OMAP_RTC_STATUS_ALARM)

		rtc_write(OMAP_RTC_STATUS_ALARM, OMAP_RTC_STATUS_REG);

		rtc_write(rtc, OMAP_RTC_STATUS_REG, OMAP_RTC_STATUS_ALARM);



	/* On boards with split power, RTC_ON_NOFF won't reset the RTC */

	reg = rtc_read(OMAP_RTC_CTRL_REG);

	reg = rtc_read(rtc, OMAP_RTC_CTRL_REG);

	if (reg & (u8) OMAP_RTC_CTRL_STOP)

		dev_info(&pdev->dev, "already running\n");
@@ -460,27 +485,26 @@ static int __init omap_rtc_probe(struct platform_device *pdev) 
		dev_info(&pdev->dev, "split power mode\n");



	if (reg != new_ctrl)

		rtc_write(new_ctrl, OMAP_RTC_CTRL_REG);

		rtc_write(rtc, OMAP_RTC_CTRL_REG, new_ctrl);



	device_init_wakeup(&pdev->dev, true);



	rtc = devm_rtc_device_register(&pdev->dev, pdev->name,

	rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,

			&omap_rtc_ops, THIS_MODULE);

	if (IS_ERR(rtc)) {

		ret = PTR_ERR(rtc);

	if (IS_ERR(rtc->rtc)) {

		ret = PTR_ERR(rtc->rtc);

		goto err;

	}

	platform_set_drvdata(pdev, rtc);



	/* handle periodic and alarm irqs */

	ret = devm_request_irq(&pdev->dev, omap_rtc_timer, rtc_irq, 0,

			dev_name(&rtc->dev), rtc);

	ret = devm_request_irq(&pdev->dev, rtc->irq_timer, rtc_irq, 0,

			dev_name(&rtc->rtc->dev), rtc);

	if (ret)

		goto err;



	if (omap_rtc_timer != omap_rtc_alarm) {

		ret = devm_request_irq(&pdev->dev, omap_rtc_alarm, rtc_irq, 0,

				dev_name(&rtc->dev), rtc);

	if (rtc->irq_timer != rtc->irq_alarm) {

		ret = devm_request_irq(&pdev->dev, rtc->irq_alarm, rtc_irq, 0,

				dev_name(&rtc->rtc->dev), rtc);

		if (ret)

			goto err;

	}
@@ -489,8 +513,8 @@ static int __init omap_rtc_probe(struct platform_device *pdev) 


err:

	device_init_wakeup(&pdev->dev, false);

	if (id_entry->driver_data & OMAP_RTC_HAS_KICKER)

		rtc_writel(0, OMAP_RTC_KICK0_REG);

	if (rtc->flags & OMAP_RTC_HAS_KICKER)

		rtc_writel(rtc, OMAP_RTC_KICK0_REG, 0);

	pm_runtime_put_sync(&pdev->dev);

	pm_runtime_disable(&pdev->dev);
@@ -499,16 +523,15 @@ static int __init omap_rtc_probe(struct platform_device *pdev) 


static int __exit omap_rtc_remove(struct platform_device *pdev)

{

	const struct platform_device_id *id_entry =

				platform_get_device_id(pdev);

	struct omap_rtc *rtc = platform_get_drvdata(pdev);



	device_init_wakeup(&pdev->dev, 0);



	/* leave rtc running, but disable irqs */

	rtc_write(0, OMAP_RTC_INTERRUPTS_REG);

	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);



	if (id_entry->driver_data & OMAP_RTC_HAS_KICKER)

		rtc_writel(0, OMAP_RTC_KICK0_REG);

	if (rtc->flags & OMAP_RTC_HAS_KICKER)

		rtc_writel(rtc, OMAP_RTC_KICK0_REG, 0);



	/* Disable the clock/module */

	pm_runtime_put_sync(&pdev->dev);
@@ -518,20 +541,20 @@ static int __exit omap_rtc_remove(struct platform_device *pdev) 
}



#ifdef CONFIG_PM_SLEEP

static u8 irqstat;



static int omap_rtc_suspend(struct device *dev)

{

	irqstat = rtc_read(OMAP_RTC_INTERRUPTS_REG);

	struct omap_rtc *rtc = dev_get_drvdata(dev);



	rtc->interrupts_reg = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG);



	/* FIXME the RTC alarm is not currently acting as a wakeup event

	 * source on some platforms, and in fact this enable() call is just

	 * saving a flag that's never used...

	 */

	if (device_may_wakeup(dev))

		enable_irq_wake(omap_rtc_alarm);

		enable_irq_wake(rtc->irq_alarm);

	else

		rtc_write(0, OMAP_RTC_INTERRUPTS_REG);

		rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);



	/* Disable the clock/module */

	pm_runtime_put_sync(dev);
@@ -541,13 +564,15 @@ static int omap_rtc_suspend(struct device *dev) 


static int omap_rtc_resume(struct device *dev)

{

	struct omap_rtc *rtc = dev_get_drvdata(dev);



	/* Enable the clock/module so that we can access the registers */

	pm_runtime_get_sync(dev);



	if (device_may_wakeup(dev))

		disable_irq_wake(omap_rtc_alarm);

		disable_irq_wake(rtc->irq_alarm);

	else

		rtc_write(irqstat, OMAP_RTC_INTERRUPTS_REG);

		rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, rtc->interrupts_reg);



	return 0;

}
@@ -557,7 +582,9 @@ static SIMPLE_DEV_PM_OPS(omap_rtc_pm_ops, omap_rtc_suspend, omap_rtc_resume); 


static void omap_rtc_shutdown(struct platform_device *pdev)

{

	rtc_write(0, OMAP_RTC_INTERRUPTS_REG);

	struct omap_rtc *rtc = platform_get_drvdata(pdev);



	rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);

}



MODULE_ALIAS("platform:omap_rtc");