hwmon: lis3: Update coordinates at polled device open

Call input device poll function at device open to refresh coordinates
immediately. This is needed for the case where poll interval is set to
zero and coordinate updates happens purely under interrupt control.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>

diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c
index d9c97e8..1095dff 100644 (file)
--- a/drivers/hwmon/lis3lv02d.c
+++ b/drivers/hwmon/lis3lv02d.c
@@ -346,6 +346,11 @@ static void lis3lv02d_joystick_open(struct input_polled_dev *pidev)
 
        if (lis3_dev.pdata && lis3_dev.whoami == WAI_8B && lis3_dev.idev)
                atomic_set(&lis3_dev.wake_thread, 1);
+       /*
+        * Update coordinates for the case where poll interval is 0 and
+        * the chip in running purely under interrupt control
+        */
+       lis3lv02d_joystick_poll(pidev);
 }
 
 static void lis3lv02d_joystick_close(struct input_polled_dev *pidev)