power: pm8921-charger: Ignore TCHG_MAX/TTRKL_MAX timer
Allow charging to exceed TCHG_MAX for the specific purpose
of devices operating at high power consumption leading them
to be charged at very low current, thus taking longer than
TCHG_MAX (512 min). The hardware charge timers are not currently
in use on PM8921 and SW charging is controlled by eoc_worker.
CRs-Fixed: 316009
Change-Id: Iff18d4d086802a96865572564cf00a268c855c33
Signed-off-by: David Keitel <dkeitel@codeaurora.org>
diff --git a/drivers/power/pm8921-charger.c b/drivers/power/pm8921-charger.c
index cccb317..148a5e5 100644
--- a/drivers/power/pm8921-charger.c
+++ b/drivers/power/pm8921-charger.c
@@ -368,6 +368,19 @@
enable ? CHG_EN_BIT : 0);
}
+#define CHG_FAILED_CLEAR BIT(0)
+#define ATC_FAILED_CLEAR BIT(1)
+static int pm_chg_failed_clear(struct pm8921_chg_chip *chip, int clear)
+{
+ int rc;
+
+ rc = pm_chg_masked_write(chip, CHG_CNTRL_3, ATC_FAILED_CLEAR,
+ clear ? ATC_FAILED_CLEAR : 0);
+ rc |= pm_chg_masked_write(chip, CHG_CNTRL_3, CHG_FAILED_CLEAR,
+ clear ? CHG_FAILED_CLEAR : 0);
+ return rc;
+}
+
#define CHG_CHARGE_DIS_BIT BIT(1)
static int pm_chg_charge_dis(struct pm8921_chg_chip *chip, int disable)
{
@@ -1525,8 +1538,17 @@
static irqreturn_t chgfail_irq_handler(int irq, void *data)
{
struct pm8921_chg_chip *chip = data;
+ int ret;
- pr_debug("state_changed_to=%d\n", pm_chg_get_fsm_state(data));
+ ret = pm_chg_failed_clear(chip, 1);
+ if (ret)
+ pr_err("Failed to write CHG_FAILED_CLEAR bit\n");
+
+ pr_err("batt_present = %d, batt_temp_ok = %d, state_changed_to=%d\n",
+ get_prop_batt_present(chip),
+ pm_chg_get_rt_status(chip, BAT_TEMP_OK_IRQ),
+ pm_chg_get_fsm_state(data));
+
power_supply_changed(&chip->batt_psy);
power_supply_changed(&chip->usb_psy);
power_supply_changed(&chip->dc_psy);
@@ -2047,6 +2069,7 @@
pm8921_chg_enable_irq(chip, USBIN_UV_IRQ);
pm8921_chg_enable_irq(chip, DCIN_OV_IRQ);
pm8921_chg_enable_irq(chip, DCIN_UV_IRQ);
+ pm8921_chg_enable_irq(chip, CHGFAIL_IRQ);
pm8921_chg_enable_irq(chip, FASTCHG_IRQ);
pm8921_chg_enable_irq(chip, VBATDET_LOW_IRQ);