The rtc can be clocked by an internal 32K clock. Adding the support
to enable the same.
Signed-off-by: Keerthy <j-keer...@ti.com>
---
drivers/rtc/rtc-omap.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index 8b6355f..f31c012 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -25,6 +25,7 @@
#include <linux/of_device.h>
#include <linux/pm_runtime.h>
#include <linux/io.h>
+#include <linux/clk.h>
/*
* The OMAP RTC is a year/month/day/hours/minutes/seconds BCD clock
@@ -132,6 +133,7 @@ struct omap_rtc_device_type {
struct omap_rtc {
struct rtc_device *rtc;
void __iomem *base;
+ struct clk *clk;
int irq_alarm;
int irq_timer;
u8 interrupts_reg;
@@ -553,6 +555,11 @@ static int omap_rtc_probe(struct platform_device *pdev)
if (rtc->irq_alarm <= 0)
return -ENOENT;
+ rtc->clk = devm_clk_get(&pdev->dev, "int-clk");
+
+ if (!IS_ERR(rtc->clk))
+ clk_prepare_enable(rtc->clk);
+
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
rtc->base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(rtc->base))
@@ -681,6 +688,9 @@ static int __exit omap_rtc_remove(struct platform_device
*pdev)
device_init_wakeup(&pdev->dev, 0);
+ if (!IS_ERR(rtc->clk))
+ clk_disable_unprepare(rtc->clk);
+
rtc->type->unlock(rtc);
/* leave rtc running, but disable irqs */
rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0);
--
1.9.1
--
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