linux-kernel - Re: [PATCH v3 11/30] thermal/drivers/tegra: Use generic thermal_zone_get

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Date:   Fri, 16 Sep 2022 18:56:38 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        rafael@...nel.org, Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        "open list:TEGRA ARCHITECTURE SUPPORT" <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH v3 11/30] thermal/drivers/tegra: Use generic
 thermal_zone_get_trip() function

On 06/09/2022 18:47, Daniel Lezcano wrote:
> Replace a single call to thermal_zone_get_trip() to get a trip point
> instead of calling the different ops->get_trip*
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>

Any comment on this patch ?

> ---
>   drivers/thermal/tegra/soctherm.c        | 33 +++++++++++--------------
>   drivers/thermal/tegra/tegra30-tsensor.c | 17 ++++++-------
>   2 files changed, 22 insertions(+), 28 deletions(-)
> 
> diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c
> index 1efe470f31e9..96b541458ccd 100644
> --- a/drivers/thermal/tegra/soctherm.c
> +++ b/drivers/thermal/tegra/soctherm.c
> @@ -582,23 +582,23 @@ static int tsensor_group_thermtrip_get(struct tegra_soctherm *ts, int id)
>   	return temp;
>   }
>   
> -static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip, int temp)
> +static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip_id, int temp)
>   {
>   	struct tegra_thermctl_zone *zone = tz->devdata;
>   	struct tegra_soctherm *ts = zone->ts;
> +	struct thermal_trip trip;
>   	const struct tegra_tsensor_group *sg = zone->sg;
>   	struct device *dev = zone->dev;
> -	enum thermal_trip_type type;
>   	int ret;
>   
>   	if (!tz)
>   		return -EINVAL;
>   
> -	ret = tz->ops->get_trip_type(tz, trip, &type);
> +	ret = thermal_zone_get_trip(tz, trip_id, &trip);
>   	if (ret)
>   		return ret;
>   
> -	if (type == THERMAL_TRIP_CRITICAL) {
> +	if (trip.type == THERMAL_TRIP_CRITICAL) {
>   		/*
>   		 * If thermtrips property is set in DT,
>   		 * doesn't need to program critical type trip to HW,
> @@ -609,7 +609,7 @@ static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip
>   		else
>   			return 0;
>   
> -	} else if (type == THERMAL_TRIP_HOT) {
> +	} else if (trip.type == THERMAL_TRIP_HOT) {
>   		int i;
>   
>   		for (i = 0; i < THROTTLE_SIZE; i++) {
> @@ -620,7 +620,7 @@ static int tegra_thermctl_set_trip_temp(struct thermal_zone_device *tz, int trip
>   				continue;
>   
>   			cdev = ts->throt_cfgs[i].cdev;
> -			if (get_thermal_instance(tz, cdev, trip))
> +			if (get_thermal_instance(tz, cdev, trip_id))
>   				stc = find_throttle_cfg_by_name(ts, cdev->type);
>   			else
>   				continue;
> @@ -687,25 +687,20 @@ static const struct thermal_zone_device_ops tegra_of_thermal_ops = {
>   	.set_trips = tegra_thermctl_set_trips,
>   };
>   
> -static int get_hot_temp(struct thermal_zone_device *tz, int *trip, int *temp)
> +static int get_hot_temp(struct thermal_zone_device *tz, int *trip_id, int *temp)
>   {
> -	int ntrips, i, ret;
> -	enum thermal_trip_type type;
> +	int i, ret;
> +	struct thermal_trip trip;
>   
> -	ntrips = of_thermal_get_ntrips(tz);
> -	if (ntrips <= 0)
> -		return -EINVAL;
> +	for (i = 0; i < thermal_zone_get_num_trips(tz); i++) {
>   
> -	for (i = 0; i < ntrips; i++) {
> -		ret = tz->ops->get_trip_type(tz, i, &type);
> +		ret = thermal_zone_get_trip(tz, i, &trip);
>   		if (ret)
>   			return -EINVAL;
> -		if (type == THERMAL_TRIP_HOT) {
> -			ret = tz->ops->get_trip_temp(tz, i, temp);
> -			if (!ret)
> -				*trip = i;
>   
> -			return ret;
> +		if (trip.type == THERMAL_TRIP_HOT) {
> +			*trip_id = i;
> +			return 0;	
>   		}
>   	}
>   
> diff --git a/drivers/thermal/tegra/tegra30-tsensor.c b/drivers/thermal/tegra/tegra30-tsensor.c
> index c34501287e96..cbaad2245f1d 100644
> --- a/drivers/thermal/tegra/tegra30-tsensor.c
> +++ b/drivers/thermal/tegra/tegra30-tsensor.c
> @@ -316,18 +316,17 @@ static void tegra_tsensor_get_hw_channel_trips(struct thermal_zone_device *tzd,
>   	*hot_trip  = 85000;
>   	*crit_trip = 90000;
>   
> -	for (i = 0; i < tzd->num_trips; i++) {
> -		enum thermal_trip_type type;
> -		int trip_temp;
> +	for (i = 0; i < thermal_zone_get_num_trips(tzd); i++) {
>   
> -		tzd->ops->get_trip_temp(tzd, i, &trip_temp);
> -		tzd->ops->get_trip_type(tzd, i, &type);
> +		struct thermal_trip trip;
>   
> -		if (type == THERMAL_TRIP_HOT)
> -			*hot_trip = trip_temp;
> +		thermal_zone_get_trip(tzd, i, &trip);
> +		
> +		if (trip.type == THERMAL_TRIP_HOT)
> +			*hot_trip = trip.temperature;
>   
> -		if (type == THERMAL_TRIP_CRITICAL)
> -			*crit_trip = trip_temp;
> +		if (trip.type == THERMAL_TRIP_CRITICAL)
> +			*crit_trip = trip.temperature;
>   	}
>   
>   	/* clamp hardware trips to the calibration limits */


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