rtc: ds1685: use threaded interrupt

Handling of extended interrupts (kickstart, wake-up, ram-clear) was
moved off to a work queue, but the interrupts aren't acknowledged
in the interrupt handler. This leads to a deadlock, if driver
is used with interrupts. To fix this we use a threaded interrupt, get rid
of the work queue and do locking with just the rtc mutex lock.

Fixes: aaaf5fbf56f1 ("rtc: add driver for DS1685 family of real time clocks")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

1 files changed, 0 insertions, 2 deletions

diff --git a/include/linux/rtc/ds1685.h b/include/linux/rtc/ds1685.h
index e6337a56d741..a00b332c505f 100644
--- a/include/linux/rtc/ds1685.h
+++ b/include/linux/rtc/ds1685.h
@@ -48,8 +48,6 @@ struct ds1685_priv {
         u32 regstep;
         resource_size_t baseaddr;
         size_t size;
-        spinlock_t lock;
-        struct work_struct work;
         int irq_num;
         bool bcd_mode;
         bool no_irq;