power: pm8921-charger: fix EOC worker not starting
There are situations when we observe that charging is in progress
but the end of charge (EOC) worker is not running. This leads to
problems like
-never detecting end of charge
-not adjusting vddmax
-not preventing suspend while charging.
The reason is that the bootloader could have started charging already,
causing a fastchg interrupt to not happen. If the fastchg interrupt is
missed the driver will never start EOC worker.
Check the real time status of the fastchg interrupt and if it is fast
charging invoke the handler so that the eoc worker could be
started.
(cherry picked from commit 7f1d97fd69c3afe66577e731105207e5db544ab2)
CRs-Fixed: 393301
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
Change-Id: I5c0ba3b8f0653c5f9d64f35346601763c059505a
Signed-off-by: Neha Pandey <nehap@codeaurora.org>
diff --git a/drivers/power/pm8921-charger.c b/drivers/power/pm8921-charger.c
index 6085b1b..48955dd 100644
--- a/drivers/power/pm8921-charger.c
+++ b/drivers/power/pm8921-charger.c
@@ -3639,6 +3639,7 @@
{
unsigned long flags;
int fsm_state;
+ int is_fast_chg;
chip->dc_present = !!is_dc_chg_plugged_in(chip);
chip->usb_present = !!is_usb_chg_plugged_in(chip);
@@ -3668,9 +3669,17 @@
if (usb_chg_current) {
/* reissue a vbus draw call */
__pm8921_charger_vbus_draw(usb_chg_current);
- fastchg_irq_handler(chip->pmic_chg_irq[FASTCHG_IRQ], chip);
}
spin_unlock_irqrestore(&vbus_lock, flags);
+ /*
+ * The bootloader could have started charging, a fastchg interrupt
+ * might not happen. Check the real time status and if it is fast
+ * charging invoke the handler so that the eoc worker could be
+ * started
+ */
+ is_fast_chg = pm_chg_get_rt_status(chip, FASTCHG_IRQ);
+ if (is_fast_chg)
+ fastchg_irq_handler(chip->pmic_chg_irq[FASTCHG_IRQ], chip);
fsm_state = pm_chg_get_fsm_state(chip);
if (is_battery_charging(fsm_state)) {