rtc: sc27xx: Remove interrupts disable and clear in probe()

When registering one rtc device, it will check to see if there is an
alarm already set in rtc hardware by issuing __rtc_read_alarm(). So
we should not disable the RTC interrupts and clear the interrupts
status in probe() function.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-sc27xx.c b/drivers/rtc/rtc-sc27xx.c
index 6ac5653..4ecabe6 100644 (file)
--- a/drivers/rtc/rtc-sc27xx.c
+++ b/drivers/rtc/rtc-sc27xx.c
@@ -129,19 +129,6 @@ static int sprd_rtc_clear_alarm_ints(struct sprd_rtc *rtc)
                            SPRD_RTC_ALM_INT_MASK);
 }
 
-static int sprd_rtc_disable_ints(struct sprd_rtc *rtc)
-{
-       int ret;
-
-       ret = regmap_update_bits(rtc->regmap, rtc->base + SPRD_RTC_INT_EN,
-                                SPRD_RTC_INT_MASK, 0);
-       if (ret)
-               return ret;
-
-       return regmap_write(rtc->regmap, rtc->base + SPRD_RTC_INT_CLR,
-                           SPRD_RTC_INT_MASK);
-}
-
 static int sprd_rtc_lock_alarm(struct sprd_rtc *rtc, bool lock)
 {
        int ret;
@@ -609,13 +596,6 @@ static int sprd_rtc_probe(struct platform_device *pdev)
        rtc->dev = &pdev->dev;
        platform_set_drvdata(pdev, rtc);
 
-       /* clear all RTC interrupts and disable all RTC interrupts */
-       ret = sprd_rtc_disable_ints(rtc);
-       if (ret) {
-               dev_err(&pdev->dev, "failed to disable RTC interrupts\n");
-               return ret;
-       }
-
        /* check if RTC time values are valid */
        ret = sprd_rtc_check_power_down(rtc);
        if (ret) {