static void spear_rtc_shutdown(struct platform_device *pdev)
{
struct spear_rtc_config *config = platform_get_drvdata(pdev);
spear_rtc_disable_interrupt(config);
clk_disable(config->clk);
}
/*
* spear_rtc_set_alarm - set the alarm time
* @dev: rtc device in use
* @alm: holds alarm date and time
*
* This function set alarm time and date. On success it will return 0
* otherwise -ve error is returned.
*/
static int spear_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
{
struct spear_rtc_config *config = dev_get_drvdata(dev);
unsigned int time, date;
int err;
if (tm2bcd(&alm->time) < 0)
return -EINVAL;
rtc_wait_not_busy(config);
time = (alm->time.tm_sec << SECOND_SHIFT) | (alm->time.tm_min <<
MINUTE_SHIFT) | (alm->time.tm_hour << HOUR_SHIFT);
date = (alm->time.tm_mday << MDAY_SHIFT) | (alm->time.tm_mon <<
MONTH_SHIFT) | (alm->time.tm_year << YEAR_SHIFT);
writel(time, config->ioaddr + ALARM_TIME_REG);
writel(date, config->ioaddr + ALARM_DATE_REG);
err = is_write_complete(config);
if (err < 0)
return err;
if (alm->enabled)
spear_rtc_enable_interrupt(config);
else
spear_rtc_disable_interrupt(config);
return 0;
}
static int spear_rtc_remove(struct platform_device *pdev)
{
struct spear_rtc_config *config = platform_get_drvdata(pdev);
spear_rtc_disable_interrupt(config);
clk_disable_unprepare(config->clk);
device_init_wakeup(&pdev->dev, 0);
return 0;
}
static int spear_rtc_suspend(struct platform_device *pdev, pm_message_t state)
{
struct spear_rtc_config *config = platform_get_drvdata(pdev);
int irq;
irq = platform_get_irq(pdev, 0);
if (device_may_wakeup(&pdev->dev)) {
if (!enable_irq_wake(irq))
config->irq_wake = 1;
} else {
spear_rtc_disable_interrupt(config);
clk_disable(config->clk);
}
return 0;
}
static int spear_alarm_irq_enable(struct device *dev, unsigned int enabled)
{
struct spear_rtc_config *config = dev_get_drvdata(dev);
int ret = 0;
spear_rtc_clear_interrupt(config);
switch (enabled) {
case 0:
/* alarm off */
spear_rtc_disable_interrupt(config);
break;
case 1:
/* alarm on */
spear_rtc_enable_interrupt(config);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int __devexit spear_rtc_remove(struct platform_device *pdev)
{
struct spear_rtc_config *config = platform_get_drvdata(pdev);
int irq;
struct resource *res;
/* leave rtc running, but disable irqs */
spear_rtc_disable_interrupt(config);
device_init_wakeup(&pdev->dev, 0);
irq = platform_get_irq(pdev, 0);
if (irq)
free_irq(irq, pdev);
clk_disable(config->clk);
clk_put(config->clk);
iounmap(config->ioaddr);
kfree(config);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res)
release_mem_region(res->start, resource_size(res));
platform_set_drvdata(pdev, NULL);
rtc_device_unregister(config->rtc);
return 0;
}