power: pm8921-bms: fix ccadc accuracy
The bms ccadc counters are incremented/decremented every 56 ticks of the
sleep clock not 55. Correct the tick count.
Also sleep clock is derived by dividing the 19.2Mhz clock by 586. Hence
the HZ count of the sleep clock should be 32764 instead of 32768. Fix
this too.
CRs-Fixed: 381923
Change-Id: I213b3618d33a60533580f4dd2d6644e18a97fcf9
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
diff --git a/drivers/power/pm8921-bms.c b/drivers/power/pm8921-bms.c
index af003b0..e275194 100644
--- a/drivers/power/pm8921-bms.c
+++ b/drivers/power/pm8921-bms.c
@@ -476,8 +476,8 @@
return div_s64(cc * CC_RESOLUTION_N, CC_RESOLUTION_D);
}
-#define CC_READING_TICKS 55
-#define SLEEP_CLK_HZ 32768
+#define CC_READING_TICKS 56
+#define SLEEP_CLK_HZ 32764
#define SECONDS_PER_HOUR 3600
/**
* ccmicrovolt_to_nvh -