linux-kernel - [PATCH v2 4/8] power: supply: qcom_battmgr: Add state_of

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Message-Id: <20250530-qcom_battmgr_update-v2-4-9e377193a656@oss.qualcomm.com>
Date: Fri, 30 May 2025 15:35:09 +0800
From: Fenglin Wu via B4 Relay <devnull+fenglin.wu.oss.qualcomm.com@...nel.org>
To: Sebastian Reichel <sre@...nel.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Subbaraman Narayanamurthy <subbaraman.narayanamurthy@....qualcomm.com>, 
 David Collins <david.collins@....qualcomm.com>, linux-pm@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 kernel@....qualcomm.com, devicetree@...r.kernel.org, 
 linux-usb@...r.kernel.org, Fenglin Wu <fenglin.wu@....qualcomm.com>
Subject: [PATCH v2 4/8] power: supply: qcom_battmgr: Add state_of_health
 property

From: Fenglin Wu <fenglin.wu@....qualcomm.com>

Add state_of_health property to read battery health percentage from
battery management firmware.

Signed-off-by: Fenglin Wu <fenglin.wu@....qualcomm.com>
---
 drivers/power/supply/qcom_battmgr.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/power/supply/qcom_battmgr.c b/drivers/power/supply/qcom_battmgr.c
index bc521f60f67fa427cc03b51c44adaeb46ae746f5..d5d0200b92bdc3d9a22f44159ad45b152efe8be0 100644
--- a/drivers/power/supply/qcom_battmgr.c
+++ b/drivers/power/supply/qcom_battmgr.c
@@ -256,6 +256,7 @@ struct qcom_battmgr_status {
 	unsigned int voltage_ocv;
 	unsigned int temperature;
 	unsigned int resistance;
+	unsigned int soh_percent;
 
 	unsigned int discharge_time;
 	unsigned int charge_time;
@@ -421,6 +422,7 @@ static const u8 sm8350_bat_prop_map[] = {
 	[POWER_SUPPLY_PROP_TIME_TO_FULL_AVG] = BATT_TTF_AVG,
 	[POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG] = BATT_TTE_AVG,
 	[POWER_SUPPLY_PROP_RESISTANCE] = BATT_RESISTANCE,
+	[POWER_SUPPLY_PROP_STATE_OF_HEALTH] = BATT_SOH,
 	[POWER_SUPPLY_PROP_POWER_NOW] = BATT_POWER_NOW,
 };
 
@@ -588,6 +590,9 @@ static int qcom_battmgr_bat_get_property(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_RESISTANCE:
 		val->intval = battmgr->status.resistance;
 		break;
+	case POWER_SUPPLY_PROP_STATE_OF_HEALTH:
+		val->intval = battmgr->status.soh_percent;
+		break;
 	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
 		val->intval = battmgr->status.discharge_time;
 		break;
@@ -672,6 +677,7 @@ static const enum power_supply_property sm8350_bat_props[] = {
 	POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
 	POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
 	POWER_SUPPLY_PROP_RESISTANCE,
+	POWER_SUPPLY_PROP_STATE_OF_HEALTH,
 	POWER_SUPPLY_PROP_POWER_NOW,
 };
 
@@ -1141,6 +1147,9 @@ static void qcom_battmgr_sm8350_callback(struct qcom_battmgr *battmgr,
 		case BATT_CAPACITY:
 			battmgr->status.percent = le32_to_cpu(resp->intval.value) / 100;
 			break;
+		case BATT_SOH:
+			battmgr->status.soh_percent = le32_to_cpu(resp->intval.value);
+			break;
 		case BATT_VOLT_OCV:
 			battmgr->status.voltage_ocv = le32_to_cpu(resp->intval.value);
 			break;

-- 
2.34.1