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Commit 38ec0494 authored by Anirudh Ghayal's avatar Anirudh Ghayal
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power: qpnp-smb2: Add support for reducing FCC for ESR 



Use the CONSTANT_CURRENT property to reduce the FCC
for software based FG ESR.

Change-Id: I3284542f75cfa69ec4709d14688125e650cc8e09
Signed-off-by: default avatarAnirudh Ghayal <aghayal@codeaurora.org>
parent e701f80b

drivers/power/qpnp-smb2.c

+12 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.

/* Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -557,6 +557,7 @@ static enum power_supply_property smb2_batt_props[] = { 
	POWER_SUPPLY_PROP_CURRENT_NOW,

	POWER_SUPPLY_PROP_CURRENT_QNOVO,

	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,

	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,

	POWER_SUPPLY_PROP_TEMP,

	POWER_SUPPLY_PROP_TECHNOLOGY,

	POWER_SUPPLY_PROP_CHARGE_DONE,
@@ -640,6 +641,10 @@ static int smb2_batt_get_prop(struct power_supply *psy, 
		val->intval = get_client_vote(chg->fcc_votable,

					      BATT_PROFILE_VOTER);

		break;

	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:

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

					FG_ESR_VOTER);

		break;

	case POWER_SUPPLY_PROP_TEMP:

		rc = smblib_get_prop_batt_temp(chg, val);

		break;
@@ -736,6 +741,12 @@ static int smb2_batt_set_prop(struct power_supply *psy, 
		chg->batt_profile_fcc_ua = val->intval;

		vote(chg->fcc_votable, BATT_PROFILE_VOTER, true, val->intval);

		break;

	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:

		if (val->intval)

			vote(chg->fcc_votable, FG_ESR_VOTER, true, val->intval);

		else

			vote(chg->fcc_votable, FG_ESR_VOTER, false, 0);

		break;

	case POWER_SUPPLY_PROP_SET_SHIP_MODE:

		/* Not in ship mode as long as the device is active */

		if (!val->intval)

drivers/power/smb-lib.h

+2 −1
Original line number Diff line number Diff line 
/* Copyright (c) 2016-2017 The Linux Foundation. All rights reserved.

/* Copyright (c) 2016-2018 The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -65,6 +65,7 @@ enum print_reason { 
#define USBIN_I_VOTER			"USBIN_I_VOTER"

#define WEAK_CHARGER_VOTER		"WEAK_CHARGER_VOTER"

#define PD_NOT_SUPPORTED_VOTER		"PD_NOT_SUPPORTED_VOTER"

#define FG_ESR_VOTER			"FG_ESR_VOTER"



#define VCONN_MAX_ATTEMPTS	3

#define OTG_MAX_ATTEMPTS	3