linux-kernel - Re: [PATCH 6/6] thermal/drivers/tsens: Add IPQ5332 support

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Message-ID: <216ced8f-66eb-3953-3011-a86deffd6255@quicinc.com>
Date:   Tue, 11 Jul 2023 14:50:26 +0530
From:   Praveenkumar I <quic_ipkumar@...cinc.com>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <amitk@...nel.org>,
        <thara.gopinath@...il.com>, <rafael@...nel.org>,
        <daniel.lezcano@...aro.org>, <rui.zhang@...el.com>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-pm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_varada@...cinc.com>
Subject: Re: [PATCH 6/6] thermal/drivers/tsens: Add IPQ5332 support


On 7/10/2023 8:33 PM, Dmitry Baryshkov wrote:
> On Mon, 10 Jul 2023 at 16:47, Praveenkumar I <quic_ipkumar@...cinc.com> wrote:
>>
>> On 7/10/2023 4:54 PM, Dmitry Baryshkov wrote:
>>> On 10/07/2023 13:37, Praveenkumar I wrote:
>>>> IPQ5332 uses tsens v2.3.3 IP and it is having combined interrupt as
>>>> like IPQ8074. But as the SoCs does not have RPM, kernel needs to
>>>> take care of sensor enablement and calibration. Hence introduced
>>>> new ops and data for IPQ5332 and reused the feature_config from
>>>> IPQ8074.
>>>>
>>>> Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
>>>> ---
>>>>    drivers/thermal/qcom/tsens-v2.c | 13 +++++++++++++
>>>>    drivers/thermal/qcom/tsens.c    |  3 +++
>>>>    drivers/thermal/qcom/tsens.h    |  2 +-
>>>>    3 files changed, 17 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/drivers/thermal/qcom/tsens-v2.c
>>>> b/drivers/thermal/qcom/tsens-v2.c
>>>> index db48b1d95348..8b6e3876fd2c 100644
>>>> --- a/drivers/thermal/qcom/tsens-v2.c
>>>> +++ b/drivers/thermal/qcom/tsens-v2.c
>>>> @@ -237,6 +237,19 @@ struct tsens_plat_data data_ipq8074 = {
>>>>        .fields    = tsens_v2_regfields,
>>>>    };
>>>>    +static const struct tsens_ops ops_ipq5332_v2 = {
>>> Please drop v2. It is unclear if it refers to tsens being v2 or being
>>> specific to ipq5332 v2.
>> Sure, will drop v2.
>>>> +    .init        = init_common,
>>>> +    .get_temp    = get_temp_tsens_valid,
>>>> +    .calibrate    = tsens_v2_calibration,
>>>> +};
>>>> +
>>>> +struct tsens_plat_data data_ipq5332 = {
>>>> +    .sensors_to_en    = 0xF800,
>>> This doesn't seem to match the offsets that you have enabled in the DTSI.
>> In order to overcome the DT binding check failure, added all the
>> available QFPROM offsets in the DTSI. Else DT binding check failing on
>> "nvmem-cell-names".
> This is not a way to overcome issues in DT bindings. Please fix DT
> bindings instead by using alternatives, enums, etc.
Sure, will fix the DT bindings.
>
>>>> +    .ops        = &ops_ipq5332_v2,
>>>> +    .feat        = &ipq8074_feat,
>>>> +    .fields        = tsens_v2_regfields,
>>>> +};
>>>> +
>>>>    /* Kept around for backward compatibility with old msm8996.dtsi */
>>>>    struct tsens_plat_data data_8996 = {
>>>>        .num_sensors    = 13,
>>>> diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
>>>> index 169690355dad..e8ba2901cda8 100644
>>>> --- a/drivers/thermal/qcom/tsens.c
>>>> +++ b/drivers/thermal/qcom/tsens.c
>>>> @@ -1140,6 +1140,9 @@ static const struct of_device_id tsens_table[] = {
>>>>        }, {
>>>>            .compatible = "qcom,ipq8074-tsens",
>>>>            .data = &data_ipq8074,
>>>> +    }, {
>>>> +        .compatible = "qcom,ipq5332-tsens",
>>>> +        .data = &data_ipq5332,
>>>>        }, {
>>>>            .compatible = "qcom,mdm9607-tsens",
>>>>            .data = &data_9607,
>>>> diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
>>>> index f8897bc8944e..36040f9beebc 100644
>>>> --- a/drivers/thermal/qcom/tsens.h
>>>> +++ b/drivers/thermal/qcom/tsens.h
>>>> @@ -701,6 +701,6 @@ extern struct tsens_plat_data data_8226,
>>>> data_8909, data_8916, data_8939, data_8
>>>>    extern struct tsens_plat_data data_tsens_v1, data_8976, data_8956;
>>>>      /* TSENS v2 targets */
>>>> -extern struct tsens_plat_data data_8996, data_ipq8074, data_tsens_v2;
>>>> +extern struct tsens_plat_data data_8996, data_ipq8074, data_ipq5332,
>>>> data_tsens_v2;
>>>>      #endif /* __QCOM_TSENS_H__ */
>> --
>> Thanks,
>> Praveenkumar
>
>