Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e94ba28a authored by Subbaraman Narayanamurthy's avatar Subbaraman Narayanamurthy Committed by Abhijeet Dharmapurikar
Browse files

power: qpnp-smbcharger: Add support to read max_voltage_design 



Add support to read the max_voltage_design of a battery which is
needed for userspace. Since POWER_SUPPLY_VOLTAGE_MAX_DESIGN for
battery power supply is not directly supported, provide
the support for it by exporting this property from bms power supply.

CRs-Fixed: 695481
Change-Id: Ie81efabb8c9d8addf5da51c6f4be31f0a60420cd
Signed-off-by: default avatarSubbaraman Narayanamurthy <subbaram@codeaurora.org>
Signed-off-by: default avatarAbhijeet Dharmapurikar <adharmap@codeaurora.org>
parent 9f7217ca

drivers/power/qpnp-fg.c

+11 −0
Original line number Diff line number Diff line
@@ -255,6 +255,7 @@ struct fg_chip { 
	u8			thermal_coefficients[THERMAL_COEFF_N_BYTES];

	bool			use_thermal_coefficients;

	unsigned int		batt_profile_len;

	unsigned int		batt_max_voltage_uv;

	const char		*batt_type;

	unsigned long		last_sram_update_time;

	unsigned long		last_temp_update_time;
@@ -1212,6 +1213,7 @@ static enum power_supply_property fg_power_props[] = { 
	POWER_SUPPLY_PROP_CURRENT_NOW,

	POWER_SUPPLY_PROP_VOLTAGE_NOW,

	POWER_SUPPLY_PROP_VOLTAGE_OCV,

	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,

	POWER_SUPPLY_PROP_TEMP,

	POWER_SUPPLY_PROP_COOL_TEMP,

	POWER_SUPPLY_PROP_WARM_TEMP,
@@ -1243,6 +1245,9 @@ static int fg_power_get_property(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_VOLTAGE_OCV:

		val->intval = get_sram_prop_now(chip, FG_DATA_OCV);

		break;

	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:

		val->intval = chip->batt_max_voltage_uv;

		break;

	case POWER_SUPPLY_PROP_TEMP:

		val->intval = get_sram_prop_now(chip, FG_DATA_BATT_TEMP);

		break;
@@ -1509,6 +1514,12 @@ wait: 
		return -ENODATA;

	}



	rc = of_property_read_u32(profile_node, "qcom,max-voltage-uv",

					&chip->batt_max_voltage_uv);



	if (rc)

		pr_warn("couldn't find battery max voltage\n");



	data = of_get_property(profile_node, "qcom,fg-profile-data", &len);

	if (!data) {

		pr_err("no battery profile loaded\n");

drivers/power/qpnp-smbcharger.c

+18 −0
Original line number Diff line number Diff line
@@ -563,6 +563,7 @@ static enum power_supply_property smbchg_battery_properties[] = { 
	POWER_SUPPLY_PROP_FLASH_CURRENT_MAX,

	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,

	POWER_SUPPLY_PROP_VOLTAGE_MAX,

	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,

	POWER_SUPPLY_PROP_CURRENT_NOW,

	POWER_SUPPLY_PROP_TEMP,

	POWER_SUPPLY_PROP_VOLTAGE_NOW,
@@ -774,6 +775,20 @@ static int get_prop_batt_voltage_now(struct smbchg_chip *chip) 
	return uv;

}



#define DEFAULT_BATT_VOLTAGE_MAX_DESIGN	4200000

static int get_prop_batt_voltage_max_design(struct smbchg_chip *chip)

{

	int uv, rc;



	rc = get_property_from_fg(chip,

			POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, &uv);

	if (rc) {

		pr_smb(PR_STATUS, "Couldn't get voltage rc = %d\n", rc);

		uv = DEFAULT_BATT_VOLTAGE_MAX_DESIGN;

	}

	return uv;

}



static int get_prop_batt_health(struct smbchg_chip *chip)

{

	if (chip->batt_hot)
@@ -1930,6 +1945,9 @@ static int smbchg_battery_get_property(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_TEMP:

		val->intval = get_prop_batt_temp(chip);

		break;

	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:

		val->intval = get_prop_batt_voltage_max_design(chip);

		break;

	default:

		return -EINVAL;

	}