linux-kernel - Re: [PATCH] thermal: mediatek: add sensors-support

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Message-ID: <f4329b1a-02e0-aad5-55bd-82d30a38fc55@linaro.org>
Date:   Tue, 20 Apr 2021 14:07:13 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Frank Wunderlich <linux@...web.de>,
        linux-mediatek@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Zhang Rui <rui.zhang@...el.com>,
        Amit Kucheria <amitk@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] thermal: mediatek: add sensors-support

On 20/03/2021 09:06, Frank Wunderlich wrote:
> From: Frank Wunderlich <frank-w@...lic-files.de>
> 
> add HWMON-support to mediateks thermanl driver to allow lm-sensors
> userspace tools read soc temperature
> 
> Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
> ---
>  drivers/thermal/mtk_thermal.c | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c
> index 149c6d7fd5a0..e22d77d57458 100644
> --- a/drivers/thermal/mtk_thermal.c
> +++ b/drivers/thermal/mtk_thermal.c
> @@ -23,6 +23,8 @@
>  #include <linux/reset.h>
>  #include <linux/types.h>
>  
> +#include "thermal_hwmon.h"
> +
>  /* AUXADC Registers */
>  #define AUXADC_CON1_SET_V	0x008
>  #define AUXADC_CON1_CLR_V	0x00c
> @@ -983,6 +985,13 @@ static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt,
>  	writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1);
>  }
>  
> +static void mtk_thermal_hwmon_action(void *data)
> +{
> +	struct thermal_zone_device *zone = data;
> +
> +	thermal_remove_hwmon_sysfs(zone);
> +}
> +
>  static int mtk_thermal_probe(struct platform_device *pdev)
>  {
>  	int ret, i, ctrl_id;
> @@ -1087,6 +1096,19 @@ static int mtk_thermal_probe(struct platform_device *pdev)
>  		goto err_disable_clk_peri_therm;
>  	}
>  
> +#ifdef CONFIG_THERMAL_HWMON

No #ifdef in C file.

> +	tzdev->tzp->no_hwmon = false;
> +	ret = thermal_add_hwmon_sysfs(tzdev);
> +	if (ret)
> +		dev_err(&pdev->dev, "error in thermal_add_hwmon_sysfs");
> +
> +	ret = devm_add_action(&pdev->dev, mtk_thermal_hwmon_action, tzdev);

devm_thermal_add_hwmon_sysfs() ?

> +	if (ret) {
> +		dev_err(&pdev->dev, "error in devm_add_action");
> +		mtk_thermal_hwmon_action(tzdev);
> +	}
> +#endif
> +
>  	return 0;
>  
>  err_disable_clk_peri_therm:
> 


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