rtc: pl031: fix up IRQ flags
The pl031 interrupt is shared between the timer part and the clockwatch
part of the same HW block on the ux500, so mark it IRQF_SHARED on this
variant.
This patch also adds the IRQF_NO_SUSPEND flag to the rtc irq on all
variants as we don't want this pretty important IRQ to be disabled in
suspend.
Signed-off-by: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index e66afb816..08378e3 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -75,11 +75,13 @@
* clockwatch function
* @st_weekday: if this is an ST Microelectronics silicon version that need
* the weekday fix
+ * @irqflags: special IRQ flags per variant
*/
struct pl031_vendor_data {
struct rtc_class_ops ops;
bool clockwatch;
bool st_weekday;
+ unsigned long irqflags;
};
struct pl031_local {
@@ -373,7 +375,7 @@
}
if (request_irq(adev->irq[0], pl031_interrupt,
- 0, "rtc-pl031", ldata)) {
+ vendor->irqflags, "rtc-pl031", ldata)) {
ret = -EIO;
goto out_no_irq;
}
@@ -403,6 +405,7 @@
.set_alarm = pl031_set_alarm,
.alarm_irq_enable = pl031_alarm_irq_enable,
},
+ .irqflags = IRQF_NO_SUSPEND,
};
/* The First ST derivative */
@@ -416,6 +419,7 @@
},
.clockwatch = true,
.st_weekday = true,
+ .irqflags = IRQF_NO_SUSPEND,
};
/* And the second ST derivative */
@@ -429,6 +433,11 @@
},
.clockwatch = true,
.st_weekday = true,
+ /*
+ * This variant shares the IRQ with another block and must not
+ * suspend that IRQ line.
+ */
+ .irqflags = IRQF_SHARED | IRQF_NO_SUSPEND,
};
static struct amba_id pl031_ids[] = {