Commit 45e57e6a authored by Fenglin Wu's avatar Fenglin Wu Committed by Sebastian Reichel
Browse files

power: supply: qcom_battmgr: Add resistance power supply property 



Add power supply property to get battery internal resistance from
the battery management firmware.

Signed-off-by: default avatarFenglin Wu <fenglin.wu@oss.qualcomm.com>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
parent cd93fbdc

drivers/power/supply/qcom_battmgr.c

+10 −0
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 
/*

 * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved.

 * Copyright (c) 2022, Linaro Ltd

 * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.

 */

#include <linux/auxiliary_bus.h>

#include <linux/module.h>
@@ -254,6 +255,7 @@ struct qcom_battmgr_status { 
	unsigned int voltage_now;

	unsigned int voltage_ocv;

	unsigned int temperature;

	unsigned int resistance;



	unsigned int discharge_time;

	unsigned int charge_time;
@@ -418,6 +420,7 @@ static const u8 sm8350_bat_prop_map[] = { 
	[POWER_SUPPLY_PROP_MODEL_NAME] = BATT_MODEL_NAME,

	[POWER_SUPPLY_PROP_TIME_TO_FULL_AVG] = BATT_TTF_AVG,

	[POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG] = BATT_TTE_AVG,

	[POWER_SUPPLY_PROP_INTERNAL_RESISTANCE] = BATT_RESISTANCE,

	[POWER_SUPPLY_PROP_POWER_NOW] = BATT_POWER_NOW,

};
@@ -584,6 +587,9 @@ static int qcom_battmgr_bat_get_property(struct power_supply *psy, 
	case POWER_SUPPLY_PROP_TEMP:

		val->intval = battmgr->status.temperature;

		break;

	case POWER_SUPPLY_PROP_INTERNAL_RESISTANCE:

		val->intval = battmgr->status.resistance;

		break;

	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:

		val->intval = battmgr->status.discharge_time;

		break;
@@ -668,6 +674,7 @@ static const enum power_supply_property sm8350_bat_props[] = { 
	POWER_SUPPLY_PROP_MODEL_NAME,

	POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,

	POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,

	POWER_SUPPLY_PROP_INTERNAL_RESISTANCE,

	POWER_SUPPLY_PROP_POWER_NOW,

};
@@ -1200,6 +1207,9 @@ static void qcom_battmgr_sm8350_callback(struct qcom_battmgr *battmgr, 
		case BATT_TTE_AVG:

			battmgr->status.discharge_time = le32_to_cpu(resp->intval.value);

			break;

		case BATT_RESISTANCE:

			battmgr->status.resistance = le32_to_cpu(resp->intval.value);

			break;

		case BATT_POWER_NOW:

			battmgr->status.power_now = le32_to_cpu(resp->intval.value);

			break;