summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/rtc/rtc-omap.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index dff9ff476b0d..600971407aac 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -22,6 +22,7 @@
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
#include <asm/io.h>
@@ -364,6 +365,10 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
goto fail;
}
+ /* Enable the clock/module so that we can access the registers */
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
+
id_entry = platform_get_device_id(pdev);
if (id_entry && (id_entry->driver_data & OMAP_RTC_HAS_KICKER)) {
rtc_writel(KICK0_VALUE, OMAP_RTC_KICK0_REG);
@@ -448,6 +453,8 @@ fail1:
fail0:
if (id_entry && (id_entry->driver_data & OMAP_RTC_HAS_KICKER))
rtc_writel(0, OMAP_RTC_KICK0_REG);
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
iounmap(rtc_base);
fail:
release_mem_region(mem->start, resource_size(mem));
@@ -474,6 +481,11 @@ static int __exit omap_rtc_remove(struct platform_device *pdev)
rtc_device_unregister(rtc);
if (id_entry && (id_entry->driver_data & OMAP_RTC_HAS_KICKER))
rtc_writel(0, OMAP_RTC_KICK0_REG);
+
+ /* Disable the clock/module */
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+
iounmap(rtc_base);
release_mem_region(mem->start, resource_size(mem));
return 0;
@@ -496,11 +508,17 @@ static int omap_rtc_suspend(struct platform_device *pdev, pm_message_t state)
else
rtc_write(0, OMAP_RTC_INTERRUPTS_REG);
+ /* Disable the clock/module */
+ pm_runtime_put_sync(&pdev->dev);
+
return 0;
}
static int omap_rtc_resume(struct platform_device *pdev)
{
+ /* Enable the clock/module so that we can access the registers */
+ pm_runtime_get_sync(&pdev->dev);
+
if (device_may_wakeup(&pdev->dev))
disable_irq_wake(omap_rtc_alarm);
else