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

Commit 6f1b4946 authored by Devesh Jhunjhunwala's avatar Devesh Jhunjhunwala Committed by Nicholas Troast
Browse files

power: qpnp-smbcharger: Add support for restricted_charging 



Add functionality to support the restricted_charging battery
property.

Change-Id: If897c6e9a31c933f1b96b675683d62119e7c2d06
Signed-off-by: default avatarDevesh Jhunjhunwala <deveshj@codeaurora.org>
parent ab30a62b

drivers/power/qpnp-smbcharger.c

+35 −0
Original line number Diff line number Diff line
@@ -138,6 +138,7 @@ struct smbchg_chip { 
	bool				vbat_above_headroom;

	bool				force_aicl_rerun;

	bool				hvdcp3_supported;

	bool				restricted_charging;

	u8				original_usbin_allowance;

	struct parallel_usb_cfg		parallel;

	struct delayed_work		parallel_en_work;
@@ -308,6 +309,7 @@ enum fcc_voters { 
	ESR_PULSE_FCC_VOTER,

	BATT_TYPE_FCC_VOTER,

	USER_FCC_VOTER,

	RESTRICTED_CHG_FCC_VOTER,

	NUM_FCC_VOTER,

};
@@ -4221,6 +4223,31 @@ static void restore_from_hvdcp_detection(struct smbchg_chip *chip) 
	chip->pulse_cnt = 0;

}



#define RESTRICTED_CHG_FCC_PERCENT	50

static int smbchg_restricted_charging(struct smbchg_chip *chip, bool enable)

{

	int current_table_index, fastchg_current;

	int rc = 0;



	/* If enable, set the fcc to the set point closest

	 * to 50% of the configured fcc while remaining below it

	 */

	current_table_index = find_smaller_in_array(

			chip->tables.usb_ilim_ma_table,

			chip->cfg_fastchg_current_ma

				* RESTRICTED_CHG_FCC_PERCENT / 100,

			chip->tables.usb_ilim_ma_len);

	fastchg_current =

		chip->tables.usb_ilim_ma_table[current_table_index];

	rc = vote(chip->fcc_votable, RESTRICTED_CHG_FCC_VOTER, enable,

			fastchg_current);



	pr_smb(PR_STATUS, "restricted_charging set to %d\n", enable);

	chip->restricted_charging = enable;



	return rc;

}



static void handle_usb_removal(struct smbchg_chip *chip)

{

	struct power_supply *parallel_psy = get_parallel_psy(chip);
@@ -5175,6 +5202,7 @@ static enum power_supply_property smbchg_battery_properties[] = { 
	POWER_SUPPLY_PROP_DP_DM,

	POWER_SUPPLY_PROP_INPUT_CURRENT_LIMITED,

	POWER_SUPPLY_PROP_RERUN_AICL,

	POWER_SUPPLY_PROP_RESTRICTED_CHARGING,

};



static int smbchg_battery_set_property(struct power_supply *psy,
@@ -5226,6 +5254,9 @@ static int smbchg_battery_set_property(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_RERUN_AICL:

		smbchg_rerun_aicl(chip);

		break;

	case POWER_SUPPLY_PROP_RESTRICTED_CHARGING:

		rc = smbchg_restricted_charging(chip, val->intval);

		break;

	default:

		return -EINVAL;

	}
@@ -5248,6 +5279,7 @@ static int smbchg_battery_is_writeable(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_SAFETY_TIMER_ENABLE:

	case POWER_SUPPLY_PROP_DP_DM:

	case POWER_SUPPLY_PROP_RERUN_AICL:

	case POWER_SUPPLY_PROP_RESTRICTED_CHARGING:

		rc = 1;

		break;

	default:
@@ -5304,6 +5336,9 @@ static int smbchg_battery_get_property(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_INPUT_CURRENT_SETTLED:

		val->intval = (int)chip->aicl_complete;

		break;

	case POWER_SUPPLY_PROP_RESTRICTED_CHARGING:

		val->intval = (int)chip->restricted_charging;

		break;

	/* properties from fg */

	case POWER_SUPPLY_PROP_CAPACITY:

		val->intval = get_prop_batt_capacity(chip);