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Commit aee40d4f authored by Xiaozhe Shi's avatar Xiaozhe Shi
Browse files

power: qpnp-smbcharger: register the batt-ov interrupt 



Register the battery over voltage interrupt in order to print warnings
when it happens.

CRs-Fixed: 901362
Change-Id: Ia4bb47caa0ea01022c00afeddc1c12b3b78fbe5c
Signed-off-by: default avatarXiaozhe Shi <xiaozhes@codeaurora.org>
parent ca3ceb78

drivers/power/qpnp-smbcharger.c

+23 −0
Original line number Diff line number Diff line
@@ -174,6 +174,7 @@ struct smbchg_chip { 
	bool				dc_present;

	bool				usb_present;

	bool				batt_present;

	bool				batt_ov;

	int				otg_retries;

	ktime_t				otg_enable_time;

	bool				aicl_deglitch_short;
@@ -202,6 +203,7 @@ struct smbchg_chip { 
	int				batt_cool_irq;

	int				batt_cold_irq;

	int				batt_missing_irq;

	int				batt_ov_irq;

	int				vbat_low_irq;

	int				chg_hot_irq;

	int				chg_term_irq;
@@ -963,6 +965,8 @@ static int get_prop_batt_voltage_max_design(struct smbchg_chip *chip) 


static int get_prop_batt_health(struct smbchg_chip *chip)

{

	if (chip->batt_ov)

		return POWER_SUPPLY_HEALTH_OVERVOLTAGE;

	if (chip->batt_hot)

		return POWER_SUPPLY_HEALTH_OVERHEAT;

	else if (chip->batt_cold)
@@ -5454,6 +5458,22 @@ static irqreturn_t batt_pres_handler(int irq, void *_chip) 
	return IRQ_HANDLED;

}



static irqreturn_t batt_ov_handler(int irq, void *_chip)

{

	struct smbchg_chip *chip = _chip;

	int rc;

	u8 reg;



	rc = smbchg_read(chip, &reg, chip->bat_if_base + RT_STS, 1);

	if (rc)

		dev_err(chip->dev, "Unable to read RT_STS rc = %d\n", rc);

	else

		chip->batt_ov = !!(reg & BAT_OV_BIT);



	pr_warn_ratelimited("batt ov: %d\n", chip->batt_ov);

	return IRQ_HANDLED;

}



static irqreturn_t vbat_low_handler(int irq, void *_chip)

{

	pr_warn_ratelimited("vbat low\n");
@@ -5924,6 +5944,7 @@ static int determine_initial_status(struct smbchg_chip *chip) 
	 */



	batt_pres_handler(0, chip);

	batt_ov_handler(0, chip);

	batt_hot_handler(0, chip);

	batt_warm_handler(0, chip);

	batt_cool_handler(0, chip);
@@ -6865,6 +6886,8 @@ static int smbchg_request_irqs(struct smbchg_chip *chip) 
				"batt-cold", batt_cold_handler, flags, rc);

			REQUEST_IRQ(chip, spmi_resource, chip->batt_missing_irq,

				"batt-missing", batt_pres_handler, flags, rc);

			REQUEST_IRQ(chip, spmi_resource, chip->batt_ov_irq,

				"batt-ov", batt_ov_handler, flags, rc);

			REQUEST_IRQ(chip, spmi_resource, chip->vbat_low_irq,

				"batt-low", vbat_low_handler, flags, rc);

			enable_irq_wake(chip->batt_hot_irq);