From nobody Thu Oct 2 17:02:10 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 838612F0C52; Mon, 15 Sep 2025 08:50:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757926214; cv=none; b=qwdsjIWUKexGVkpEHN8V/V0bM8UoqUaz02exKNcC+LglVz4U+mP8GEsy5WkPP7c+WdNBsPwmnTU7UKIeN03MAr849RbY41OhYGVoS1m2rWfFJt1cAi0pGZzcE6uHIhMYfz9PWWi4pbUsQqw4STuR4zLxWF3DHLmBqApJf5OKpFU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757926214; c=relaxed/simple; bh=RwF7eMX1nZ8p+S5/F/PMsjeqGTLxB+0i/FZbAx2z01k=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=BwygIoAINbA12eN6il+sDxB7njdx4lAtM15Md41SrVEe3jViv+ziGG19Zu8H8HiAXsZQHelhLw6HtInlcsuWL5WZBptHjrMxkn2ZNbETDVwcKqDF7fD253YJ8yMAXpU9AlYjU3NlMa5CaQGrQweTFVhnEWR/ohcrOr/BA+YuiJE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nyl0QFtt; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="nyl0QFtt" Received: by smtp.kernel.org (Postfix) with ESMTPS id 28A4DC4AF0B; Mon, 15 Sep 2025 08:50:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757926214; bh=RwF7eMX1nZ8p+S5/F/PMsjeqGTLxB+0i/FZbAx2z01k=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=nyl0QFttrw/s0vbqNGODx4hv5yNob/Z0bsB6QOHkqR664158rajY+PRdMetsu+N3M f0VnfkcjEZ6mdPR8iydairmtvu3Dhycs2XTXDK4aMmpTkwlcDFL4kMxzXxDZHwS11e ejnFeAPYHZaXODwZW/GQEs9+gvamd05S1G/kwQzEfE95Eh2JRu+ycEs2BXbar1eR2z HPX0SCsZlwObxbyxZrInPhUaV3QcnSU12gsveHLc96lhF8zThzvK1acwT2NOh3sRjK omiBubbXAF96s+xpM7UhvtJpD62QxyuQ9eQ7VB15gAYTQL4kwy6A/0MUDWb1MnaWsN T+sffR/RwaZ9g== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 131A1CAC598; Mon, 15 Sep 2025 08:50:14 +0000 (UTC) From: Fenglin Wu via B4 Relay Date: Mon, 15 Sep 2025 16:49:55 +0800 Subject: [PATCH v4 3/8] power: supply: qcom_battmgr: Add resistance power supply property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250915-qcom_battmgr_update-v4-3-6f6464a41afe@oss.qualcomm.com> References: <20250915-qcom_battmgr_update-v4-0-6f6464a41afe@oss.qualcomm.com> In-Reply-To: <20250915-qcom_battmgr_update-v4-0-6f6464a41afe@oss.qualcomm.com> To: Sebastian Reichel , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heikki Krogerus , Greg Kroah-Hartman , Dmitry Baryshkov , Bryan O'Donoghue , Konrad Dybcio Cc: Subbaraman Narayanamurthy , David Collins , =?utf-8?q?Gy=C3=B6rgy_Kurucz?= , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, kernel@oss.qualcomm.com, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, Fenglin Wu , Neil Armstrong X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1757926212; l=2552; i=fenglin.wu@oss.qualcomm.com; s=20240327; h=from:subject:message-id; bh=OQgd2W4o/rV8XW+P2dEYESDwonjckeDW+a75iXfgrNE=; b=m9Y49dtk+T+Sbp6QODq3a2bJ+WmTVL5YUTEdrlBQLSszbTukWLjh7UHFJZKWl+OSqVSLHGL1Z 9jqn9Tf8/D7BKj/wPqia4ptMcamPbXa1r/jNoiGRt1e7EOZOb953g0W X-Developer-Key: i=fenglin.wu@oss.qualcomm.com; a=ed25519; pk=BF8SA4IVDk8/EBCwlBehKtn2hp6kipuuAuDAHh9s+K4= X-Endpoint-Received: by B4 Relay for fenglin.wu@oss.qualcomm.com/20240327 with auth_id=406 X-Original-From: Fenglin Wu Reply-To: fenglin.wu@oss.qualcomm.com From: Fenglin Wu Add power supply property to get battery internal resistance from the battery management firmware. Tested-by: Neil Armstrong # on Thinkpad T14S OL= ED Signed-off-by: Fenglin Wu --- 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/qco= m_battmgr.c index fe27676fbc7cd12292caa6fb3b5b46a18c426e6d..55477ae92fd56ede465b32d6f7e= d9da78ebd869c 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 #include @@ -254,6 +255,7 @@ struct qcom_battmgr_status { unsigned int voltage_now; unsigned int voltage_ocv; unsigned int temperature; + unsigned int resistance; =20 unsigned int discharge_time; unsigned int charge_time; @@ -418,6 +420,7 @@ static const u8 sm8350_bat_prop_map[] =3D { [POWER_SUPPLY_PROP_MODEL_NAME] =3D BATT_MODEL_NAME, [POWER_SUPPLY_PROP_TIME_TO_FULL_AVG] =3D BATT_TTF_AVG, [POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG] =3D BATT_TTE_AVG, + [POWER_SUPPLY_PROP_INTERNAL_RESISTANCE] =3D BATT_RESISTANCE, [POWER_SUPPLY_PROP_POWER_NOW] =3D BATT_POWER_NOW, }; =20 @@ -582,6 +585,9 @@ static int qcom_battmgr_bat_get_property(struct power_s= upply *psy, case POWER_SUPPLY_PROP_TEMP: val->intval =3D battmgr->status.temperature; break; + case POWER_SUPPLY_PROP_INTERNAL_RESISTANCE: + val->intval =3D battmgr->status.resistance; + break; case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: val->intval =3D battmgr->status.discharge_time; break; @@ -665,6 +671,7 @@ static const enum power_supply_property sm8350_bat_prop= s[] =3D { 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, }; =20 @@ -1174,6 +1181,9 @@ static void qcom_battmgr_sm8350_callback(struct qcom_= battmgr *battmgr, case BATT_TTE_AVG: battmgr->status.discharge_time =3D le32_to_cpu(resp->intval.value); break; + case BATT_RESISTANCE: + battmgr->status.resistance =3D le32_to_cpu(resp->intval.value); + break; case BATT_POWER_NOW: battmgr->status.power_now =3D le32_to_cpu(resp->intval.value); break; --=20 2.34.1