linux-kernel - Re: [PATCH v2 08/26] thermal/drivers/rcar: Use generic thermal_zone_get

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Date:   Tue, 16 Aug 2022 11:00:47 +0200
From:   Niklas Söderlund 
        <niklas.soderlund@...natech.se>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     rafael@...nel.org, rui.zhang@...el.com, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Amit Kucheria <amitk@...nel.org>,
        "open list:RENESAS R-CAR THERMAL DRIVERS" 
        <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH v2 08/26] thermal/drivers/rcar: Use generic
 thermal_zone_get_trip() function

Hi Daniel,

Thanks for your work.

On 2022-08-10 00:04:18 +0200, Daniel Lezcano wrote:
> The thermal framework gives the possibility to register the trip
> points with the thermal zone. When that is done, no get_trip_* ops are
> needed and they can be removed.
> 
> Convert ops content logic into generic trip points and register them with the
> thermal zone.
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>

Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>

> ---
>  drivers/thermal/rcar_thermal.c | 49 +++++-----------------------------
>  1 file changed, 6 insertions(+), 43 deletions(-)
> 
> diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
> index 4df42d70d867..003457810072 100644
> --- a/drivers/thermal/rcar_thermal.c
> +++ b/drivers/thermal/rcar_thermal.c
> @@ -278,52 +278,16 @@ static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp)
>  	return rcar_thermal_get_current_temp(priv, temp);
>  }
>  
> -static int rcar_thermal_get_trip_type(struct thermal_zone_device *zone,
> -				      int trip, enum thermal_trip_type *type)
> -{
> -	struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
> -	struct device *dev = rcar_priv_to_dev(priv);
> -
> -	/* see rcar_thermal_get_temp() */
> -	switch (trip) {
> -	case 0: /* +90 <= temp */
> -		*type = THERMAL_TRIP_CRITICAL;
> -		break;
> -	default:
> -		dev_err(dev, "rcar driver trip error\n");
> -		return -EINVAL;
> -	}
> -
> -	return 0;
> -}
> -
> -static int rcar_thermal_get_trip_temp(struct thermal_zone_device *zone,
> -				      int trip, int *temp)
> -{
> -	struct rcar_thermal_priv *priv = rcar_zone_to_priv(zone);
> -	struct device *dev = rcar_priv_to_dev(priv);
> -
> -	/* see rcar_thermal_get_temp() */
> -	switch (trip) {
> -	case 0: /* +90 <= temp */
> -		*temp = MCELSIUS(90);
> -		break;
> -	default:
> -		dev_err(dev, "rcar driver trip error\n");
> -		return -EINVAL;
> -	}
> -
> -	return 0;
> -}
> -
>  static struct thermal_zone_device_ops rcar_thermal_zone_of_ops = {
>  	.get_temp	= rcar_thermal_get_temp,
>  };
>  
>  static struct thermal_zone_device_ops rcar_thermal_zone_ops = {
>  	.get_temp	= rcar_thermal_get_temp,
> -	.get_trip_type	= rcar_thermal_get_trip_type,
> -	.get_trip_temp	= rcar_thermal_get_trip_temp,
> +};
> +
> +static struct thermal_trip trips[] = {
> +	{ .type = THERMAL_TRIP_CRITICAL, .temperature = 90000 }
>  };
>  
>  /*
> @@ -531,9 +495,8 @@ static int rcar_thermal_probe(struct platform_device *pdev)
>  						dev, i, priv,
>  						&rcar_thermal_zone_of_ops);
>  		} else {
> -			priv->zone = thermal_zone_device_register(
> -						"rcar_thermal",
> -						1, 0, priv,
> +			priv->zone = thermal_zone_device_register_with_trips(
> +				"rcar_thermal", trips, ARRAY_SIZE(trips), 0, priv,
>  						&rcar_thermal_zone_ops, NULL, 0,
>  						idle);
>  
> -- 
> 2.34.1
> 

-- 
Kind Regards,
Niklas Söderlund