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

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Date:   Mon, 10 Jul 2023 14:24:29 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Praveenkumar I <quic_ipkumar@...cinc.com>, 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
Cc:     quic_varada@...cinc.com
Subject: Re: [PATCH 6/6] thermal/drivers/tsens: Add IPQ5332 support

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.

> +	.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.

> +	.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__ */

-- 
With best wishes
Dmitry