linux-kernel - Re: [PATCH v9 3/7] thermal/drivers/tsens: Add TSENS enable and calibration support for V2

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Message-ID: <f7f8f087-f3bb-4dbc-b95d-6a6edd6bf64c@wanadoo.fr>
Date: Fri, 13 Dec 2024 20:02:02 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: Manikanta Mylavarapu <quic_mmanikan@...cinc.com>
Cc: quic_srichara@...cinc.com, quic_varada@...cinc.com,
 srinivas.kandagatla@...aro.org, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, amitk@...nel.org, thara.gopinath@...il.com,
 rafael@...nel.org, daniel.lezcano@...aro.org, rui.zhang@...el.com,
 lukasz.luba@....com, andersson@...nel.org, konradybcio@...nel.org,
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH v9 3/7] thermal/drivers/tsens: Add TSENS enable and
 calibration support for V2

Le 25/11/2024 à 06:07, Manikanta Mylavarapu a écrit :
> From: Praveenkumar I <quic_ipkumar-jfJNa2p1gH1BDgjK7y7TUQ@...lic.gmane.org>
> 
> SoCs without RPM need to enable sensors and calibrate them from the kernel.
> The IPQ5332 and IPQ5424 use the tsens v2.3.3 IP and do not have RPM.
> Therefore, add a new calibration function for V2, as the tsens.c calib
> function only supports V1. Also add new feature_config, ops and data for
> IPQ5332, IPQ5424.
> 
> Although the TSENS IP supports 16 sensors, not all are used. The hw_id
> is used to enable the relevant sensors.

...

> diff --git a/drivers/thermal/qcom/tsens-v2.c b/drivers/thermal/qcom/tsens-v2.c
> index 0cb7301eca6e..836155fa9ab2 100644
> --- a/drivers/thermal/qcom/tsens-v2.c
> +++ b/drivers/thermal/qcom/tsens-v2.c
> @@ -4,13 +4,32 @@
>    * Copyright (c) 2018, Linaro Limited
>    */
>   
> +#include <linux/bitfield.h>
>   #include <linux/bitops.h>
>   #include <linux/regmap.h>
> +#include <linux/nvmem-consumer.h>

If moved one line above, alphabetical order would be kept.

>   #include "tsens.h"
>   
>   /* ----- SROT ------ */
>   #define SROT_HW_VER_OFF	0x0000

...

> +static const struct tsens_ops ops_ipq5332 = {
> +	.init		= init_tsens_v2_no_rpm,
> +	.get_temp	= get_temp_tsens_valid,
> +	.calibrate	= tsens_v2_calibration,
> +};
> +
> +struct tsens_plat_data data_ipq5332 = {

This could easily be made as const.

> +	.num_sensors	= 5,
> +	.ops		= &ops_ipq5332,
> +	.hw_ids		= (unsigned int []){11, 12, 13, 14, 15},
> +	.feat		= &ipq5332_feat,
> +	.fields		= tsens_v2_regfields,
> +};
> +
> +struct tsens_plat_data data_ipq5424 = {

This could easily be made as const.

> +	.num_sensors	= 7,
> +	.ops		= &ops_ipq5332,
> +	.hw_ids		= (unsigned int []){9, 10, 11, 12, 13, 14, 15},
> +	.feat		= &ipq5332_feat,
> +	.fields		= tsens_v2_regfields,
> +};

...

CJ