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Commit ac52d887 authored by Harry Yang's avatar Harry Yang
Browse files

qcom: smb1355: Support connector_temp_health property 



SMB1355's aux therm input is connected to the connector thermistor.
Expose it via parallel psy connector_temp_health property.

Change-Id: I93d7769472629f983d0b3016574c105328ed8549
Signed-off-by: default avatarHarry Yang <harryy@codeaurora.org>
parent 80e2ccd6

drivers/power/supply/qcom/smb1355-charger.c

+36 −0
Original line number Diff line number Diff line
@@ -61,6 +61,15 @@ 
#define CHGR_BATTOV_CFG_REG			(CHGR_BASE + 0x70)

#define BATTOV_SETTING_MASK			GENMASK(7, 0)



#define TEMP_COMP_STATUS_REG			(MISC_BASE + 0x07)

#define SKIN_TEMP_RST_HOT_BIT			BIT(6)

#define SKIN_TEMP_UB_HOT_BIT			BIT(5)

#define SKIN_TEMP_LB_HOT_BIT			BIT(4)

#define DIE_TEMP_TSD_HOT_BIT			BIT(3)

#define DIE_TEMP_RST_HOT_BIT			BIT(2)

#define DIE_TEMP_UB_HOT_BIT			BIT(1)

#define DIE_TEMP_LB_HOT_BIT			BIT(0)



#define BARK_BITE_WDOG_PET_REG			(MISC_BASE + 0x43)

#define BARK_BITE_WDOG_PET_BIT			BIT(0)
@@ -260,6 +269,7 @@ static enum power_supply_property smb1355_parallel_props[] = { 
	POWER_SUPPLY_PROP_VOLTAGE_MAX,

	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,

	POWER_SUPPLY_PROP_MODEL_NAME,

	POWER_SUPPLY_PROP_CONNECTOR_HEALTH,

};



static int smb1355_get_prop_batt_charge_type(struct smb1355 *chip,
@@ -305,6 +315,29 @@ static int smb1355_get_parallel_charging(struct smb1355 *chip, int *disabled) 
	return 0;

}



static int smb1355_get_prop_connector_health(struct smb1355 *chip)

{

	u8 temp;

	int rc;



	rc = smb1355_read(chip, TEMP_COMP_STATUS_REG, &temp);

	if (rc < 0) {

		pr_err("Couldn't read comp stat reg rc = %d\n", rc);

		return POWER_SUPPLY_HEALTH_UNKNOWN;

	}



	if (temp & SKIN_TEMP_RST_HOT_BIT)

		return POWER_SUPPLY_HEALTH_OVERHEAT;



	if (temp & SKIN_TEMP_UB_HOT_BIT)

		return POWER_SUPPLY_HEALTH_HOT;



	if (temp & SKIN_TEMP_LB_HOT_BIT)

		return POWER_SUPPLY_HEALTH_WARM;



	return POWER_SUPPLY_HEALTH_COOL;

}



static int smb1355_parallel_get_prop(struct power_supply *psy,

				     enum power_supply_property prop,

				     union power_supply_propval *val)
@@ -344,6 +377,9 @@ static int smb1355_parallel_get_prop(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_PARALLEL_MODE:

		val->intval = POWER_SUPPLY_PL_USBMID_USBMID;

		break;

	case POWER_SUPPLY_PROP_CONNECTOR_HEALTH:

		val->intval = smb1355_get_prop_connector_health(chip);

		break;

	default:

		pr_err_ratelimited("parallel psy get prop %d not supported\n",

			prop);