linux-kernel - Re: [PATCH 5/5] power: supply: qcom-battmgr: Add charge control support

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Message-ID: <025c297a-de13-49ee-81ea-2290df0f6843@oss.qualcomm.com>
Date: Thu, 29 May 2025 15:14:34 +0800
From: Fenglin Wu <fenglin.wu@....qualcomm.com>
To: me@...uczgy.com, Sebastian Reichel <sre@...nel.org>,
        Bjorn Andersson <andersson@...nel.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
Subject: Re: [PATCH 5/5] power: supply: qcom-battmgr: Add charge control
 support


On 5/28/2025 12:42 AM, me@...uczgy.com wrote:
>> No, sc8280xp and x1e80100 don't support it. So I didn't add the support for them.
> Hm... From what I heard charge limiting works on some X1E laptops, e.g. the ThinkPad T14s on Windows using Lenovo Vantage.
>
> Do you happen to know how that works? Is that some vendor specific solution? Or does it depend on the version of the battery management firmware? (AFAIK this is part of the adsp firmware?)
>
> Thanks,
> György

Thank you for the information. I confirmed with our battery management 
firmware team that the X1E80100 platform does support charge control 
using the same scheme, opcode, and request and response data messages.

I will add charge control support for X1E80100 in V2.


Thanks

Fenglin