linux-kernel - Re: [PATCH RFC v2 3/5] thermal: qcom: Add support for MBG thermal monitoring

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Message-ID: <ba764e00-2968-447f-99d1-5925e7782491@oss.qualcomm.com>
Date: Mon, 30 Dec 2024 15:06:28 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Satya Priya Kakitapalli <quic_skakitap@...cinc.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Zhang Rui <rui.zhang@...el.com>, Lukasz Luba <lukasz.luba@....com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>, Lee Jones <lee@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>, Amit Kucheria <amitk@...nel.org>,
        Thara Gopinath <thara.gopinath@...il.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Ajit Pandey <quic_ajipan@...cinc.com>,
        Imran Shaik <quic_imrashai@...cinc.com>,
        Taniya Das <quic_tdas@...cinc.com>,
        Jagadeesh Kona <quic_jkona@...cinc.com>, quic_kamalw@...cinc.com,
        quic_jprakash@...cinc.com, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org
Subject: Re: [PATCH RFC v2 3/5] thermal: qcom: Add support for MBG thermal
 monitoring

On 30.12.2024 10:45 AM, Satya Priya Kakitapalli wrote:
> 
> On 12/13/2024 9:18 PM, Konrad Dybcio wrote:
>> On 12.12.2024 5:11 PM, Satya Priya Kakitapalli wrote:
>>> Add driver for the MBG thermal monitoring device. It monitors
>>> the die temperature, and when there is a level 1 upper threshold
>>> violation, it receives an interrupt over spmi. The driver reads
>>> the fault status register and notifies thermal accordingly.
>>>
>>> Signed-off-by: Satya Priya Kakitapalli <quic_skakitap@...cinc.com>
>>> ---
>> [...]
>>
>>> +static const struct mbg_map_table map_table[] = {
>> Is this peripheral/pmic-specific?
> 
> 
> Yes, peripheral specific.

Okay, I asked a question that I don't recall what I meant by.

To be clear, is this table specific to all instances of MBG on
different kinds of PMIC7, or does it only apply to PM8775
specifically?

> 
>>> +    /* minT    vtemp0    tc */
>>> +    { -60000, 4337, 1967 },
>>> +    { -40000, 4731, 1964 },
>>> +    { -20000, 5124, 1957  },
>>> +    { 0,      5515, 1949 },
>>> +    { 20000,  5905, 1940 },
>>> +    { 40000,  6293, 1930 },
>>> +    { 60000,  6679, 1921 },
>>> +    { 80000,  7064, 1910 },
>>> +    { 100000, 7446, 1896 },
>>> +    { 120000, 7825, 1878 },
>>> +    { 140000, 8201, 1859 },
>>> +};

Konrad