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Commit 7f6791c7 authored by Ashay Jaiswal's avatar Ashay Jaiswal Committed by Guru Das Srinagesh
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power: smb5: Add support for thermal throttling 



Expose power_supply property to allow userspace throttling
algorithm to configure ICL.

Change-Id: I70233fadda4dbbd878db7cc641730437ea9f28c6
Signed-off-by: default avatarAshay Jaiswal <ashayj@codeaurora.org>
Signed-off-by: default avatarUmang Agrawal <uagrawal@codeaurora.org>
Signed-off-by: default avatarGuru Das Srinagesh <gurus@codeaurora.org>
parent 380bbced

drivers/power/supply/qcom/qpnp-smb5.c

+15 −1
Original line number Diff line number Diff line
@@ -731,6 +731,7 @@ static enum power_supply_property smb5_usb_props[] = { 
	POWER_SUPPLY_PROP_HVDCP_OPTI_ALLOWED,

	POWER_SUPPLY_PROP_QC_OPTI_DISABLE,

	POWER_SUPPLY_PROP_VOLTAGE_VPH,

	POWER_SUPPLY_PROP_THERM_ICL_LIMIT,

};



static int smb5_usb_get_prop(struct power_supply *psy,
@@ -855,6 +856,10 @@ static int smb5_usb_get_prop(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_VOLTAGE_VPH:

		rc = smblib_get_prop_vph_voltage_now(chg, val);

		break;

	case POWER_SUPPLY_PROP_THERM_ICL_LIMIT:

		val->intval = get_client_vote(chg->usb_icl_votable,

					THERMAL_THROTTLE_VOTER);

		break;

	default:

		pr_err("get prop %d is not supported in usb\n", psp);

		rc = -EINVAL;
@@ -875,7 +880,7 @@ static int smb5_usb_set_prop(struct power_supply *psy, 
{

	struct smb5 *chip = power_supply_get_drvdata(psy);

	struct smb_charger *chg = &chip->chg;

	int rc = 0;

	int icl, rc = 0;



	switch (psp) {

	case POWER_SUPPLY_PROP_PD_CURRENT_MAX:
@@ -919,6 +924,14 @@ static int smb5_usb_set_prop(struct power_supply *psy, 
		chg->connector_health = val->intval;

		power_supply_changed(chg->usb_psy);

		break;

	case POWER_SUPPLY_PROP_THERM_ICL_LIMIT:

		icl = get_effective_result(chg->usb_icl_votable);

		if ((icl + val->intval) > 0)

			rc = vote(chg->usb_icl_votable, THERMAL_THROTTLE_VOTER,

					true, icl + val->intval);

		else

			rc = -EINVAL;

		break;

	default:

		pr_err("set prop %d is not supported\n", psp);

		rc = -EINVAL;
@@ -934,6 +947,7 @@ static int smb5_usb_prop_is_writeable(struct power_supply *psy, 
	switch (psp) {

	case POWER_SUPPLY_PROP_CTM_CURRENT_MAX:

	case POWER_SUPPLY_PROP_CONNECTOR_HEALTH:

	case POWER_SUPPLY_PROP_THERM_ICL_LIMIT:

		return 1;

	default:

		break;

drivers/power/supply/qcom/smb5-lib.c

+2 −0
Original line number Diff line number Diff line
@@ -1124,6 +1124,7 @@ static void smblib_uusb_removal(struct smb_charger *chg) 
	vote(chg->usb_icl_votable, SW_QC3_VOTER, false, 0);

	vote(chg->usb_icl_votable, HVDCP2_ICL_VOTER, false, 0);

	vote(chg->usb_icl_votable, CHG_TERMINATION_VOTER, false, 0);

	vote(chg->usb_icl_votable, THERMAL_THROTTLE_VOTER, false, 0);



	/* Remove SW thermal regulation WA votes */

	vote(chg->usb_icl_votable, SW_THERM_REGULATION_VOTER, false, 0);
@@ -5186,6 +5187,7 @@ static void typec_src_removal(struct smb_charger *chg) 
	vote(chg->usb_icl_votable, CTM_VOTER, false, 0);

	vote(chg->usb_icl_votable, HVDCP2_ICL_VOTER, false, 0);

	vote(chg->usb_icl_votable, CHG_TERMINATION_VOTER, false, 0);

	vote(chg->usb_icl_votable, THERMAL_THROTTLE_VOTER, false, 0);



	/* reset usb irq voters */

	vote(chg->usb_irq_enable_votable, PD_VOTER, false, 0);

drivers/power/supply/qcom/smb5-lib.h

+1 −0
Original line number Diff line number Diff line
@@ -65,6 +65,7 @@ enum print_reason { 
#define AICL_THRESHOLD_VOTER		"AICL_THRESHOLD_VOTER"

#define USBOV_DBC_VOTER			"USBOV_DBC_VOTER"

#define CHG_TERMINATION_VOTER		"CHG_TERMINATION_VOTER"

#define THERMAL_THROTTLE_VOTER		"THERMAL_THROTTLE_VOTER"



#define BOOST_BACK_STORM_COUNT	3

#define WEAK_CHG_STORM_COUNT	8