Messages in this thread Patch in this message |  | | From | Fenglin Wu via B4 Relay <> | | Date | Fri, 23 May 2025 09:39:20 +0800 | | Subject | [PATCH 3/5] power: supply: qcom_battmgr: Add resistance power supply property |
| |
From: Fenglin Wu <fenglin.wu@oss.qualcomm.com>
Add power supply property to get battery resistance from the battery management firmware.
Signed-off-by: Fenglin Wu <fenglin.wu@oss.qualcomm.com> --- drivers/power/supply/qcom_battmgr.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/power/supply/qcom_battmgr.c b/drivers/power/supply/qcom_battmgr.c index fe27676fbc7cd12292caa6fb3b5b46a18c426e6d..bc521f60f67fa427cc03b51c44adaeb46ae746f5 100644 --- a/drivers/power/supply/qcom_battmgr.c +++ b/drivers/power/supply/qcom_battmgr.c @@ -2,6 +2,7 @@ /* * Copyright (c) 2019-2020, The Linux Foundation. All rights reserved. * Copyright (c) 2022, Linaro Ltd + * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved. */ #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_RESISTANCE] = BATT_RESISTANCE, [POWER_SUPPLY_PROP_POWER_NOW] = BATT_POWER_NOW, }; @@ -582,6 +585,9 @@ 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_RESISTANCE: + val->intval = battmgr->status.resistance; + break; case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: val->intval = battmgr->status.discharge_time; break; @@ -665,6 +671,7 @@ 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_RESISTANCE, POWER_SUPPLY_PROP_POWER_NOW, }; @@ -1174,6 +1181,9 @@ 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; -- 2.34.1
|  |