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path: root/drivers/rtc/rtc-pl031.c
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Diffstat (limited to 'drivers/rtc/rtc-pl031.c')
-rw-r--r--drivers/rtc/rtc-pl031.c57
1 files changed, 1 insertions, 56 deletions
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index b7a6690e5b3..ff1b84bd9bb 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -293,57 +293,6 @@ static int pl031_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
return ret;
}
-/* Periodic interrupt is only available in ST variants. */
-static int pl031_irq_set_state(struct device *dev, int enabled)
-{
- struct pl031_local *ldata = dev_get_drvdata(dev);
-
- if (enabled == 1) {
- /* Clear any pending timer interrupt. */
- writel(RTC_BIT_PI, ldata->base + RTC_ICR);
-
- writel(readl(ldata->base + RTC_IMSC) | RTC_BIT_PI,
- ldata->base + RTC_IMSC);
-
- /* Now start the timer */
- writel(readl(ldata->base + RTC_TCR) | RTC_TCR_EN,
- ldata->base + RTC_TCR);
-
- } else {
- writel(readl(ldata->base + RTC_IMSC) & (~RTC_BIT_PI),
- ldata->base + RTC_IMSC);
-
- /* Also stop the timer */
- writel(readl(ldata->base + RTC_TCR) & (~RTC_TCR_EN),
- ldata->base + RTC_TCR);
- }
- /* Wait at least 1 RTC32 clock cycle to ensure next access
- * to RTC_TCR will succeed.
- */
- udelay(40);
-
- return 0;
-}
-
-static int pl031_irq_set_freq(struct device *dev, int freq)
-{
- struct pl031_local *ldata = dev_get_drvdata(dev);
-
- /* Cant set timer if it is already enabled */
- if (readl(ldata->base + RTC_TCR) & RTC_TCR_EN) {
- dev_err(dev, "can't change frequency while timer enabled\n");
- return -EINVAL;
- }
-
- /* If self start bit in RTC_TCR is set timer will start here,
- * but we never set that bit. Instead we start the timer when
- * set_state is called with enabled == 1.
- */
- writel(RTC_TIMER_FREQ / freq, ldata->base + RTC_TLR);
-
- return 0;
-}
-
static int pl031_remove(struct amba_device *adev)
{
struct pl031_local *ldata = dev_get_drvdata(&adev->dev);
@@ -358,7 +307,7 @@ static int pl031_remove(struct amba_device *adev)
return 0;
}
-static int pl031_probe(struct amba_device *adev, struct amba_id *id)
+static int pl031_probe(struct amba_device *adev, const struct amba_id *id)
{
int ret;
struct pl031_local *ldata;
@@ -440,8 +389,6 @@ static struct rtc_class_ops stv1_pl031_ops = {
.read_alarm = pl031_read_alarm,
.set_alarm = pl031_set_alarm,
.alarm_irq_enable = pl031_alarm_irq_enable,
- .irq_set_state = pl031_irq_set_state,
- .irq_set_freq = pl031_irq_set_freq,
};
/* And the second ST derivative */
@@ -451,8 +398,6 @@ static struct rtc_class_ops stv2_pl031_ops = {
.read_alarm = pl031_stv2_read_alarm,
.set_alarm = pl031_stv2_set_alarm,
.alarm_irq_enable = pl031_alarm_irq_enable,
- .irq_set_state = pl031_irq_set_state,
- .irq_set_freq = pl031_irq_set_freq,
};
static struct amba_id pl031_ids[] = {