ab8500_bm: Skip first CCEOC irq for instant current

When enabling the CCEOC irq we might get false interrupt
from ab8500-driver due to the latched value will be saved
and interpreted as an IRQ when enabled

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Johan Bjornstedt <johan.bjornstedt@stericsson.com>
Signed-off-by: Henrik Solver <henrik.solver@stericsson.com>
Reviewed-by: Karl KOMIEROWSKI <karl.komierowski@stericsson.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

1 files changed, 4 insertions, 7 deletions

diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c
index e1d28039ce7b..4a570b6c9e47 100644
--- a/drivers/power/ab8500_btemp.c
+++ b/drivers/power/ab8500_btemp.c
@@ -374,13 +374,10 @@ static int ab8500_btemp_get_batctrl_res(struct ab8500_btemp *di)
                 return ret;
         }
 
-        /*
-         * Since there is no interrupt when current measurement is done,
-         * loop for over 250ms (250ms is one sample conversion time
-         * with 32.768 Khz RTC clock). Note that a stop time must be set
-         * since the ab8500_btemp_read_batctrl_voltage call can block and
-         * take an unknown amount of time to complete.
-         */
+        do {
+                msleep(20);
+        } while (!ab8500_fg_inst_curr_started(di->fg));
+
         i = 0;
 
         do {