linux-kernel - Re: [PATCH v2 09/26] thermal/drivers/uniphier: Use generic thermal_zone_get

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Date:   Mon, 15 Aug 2022 23:19:03 +0900
From:   Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>, rafael@...nel.org
Cc:     rui.zhang@...el.com, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Amit Kucheria <amitk@...nel.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        "moderated list:ARM/UNIPHIER ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 09/26] thermal/drivers/uniphier: Use generic
 thermal_zone_get_trip() function

On 2022/08/10 7:04, 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>
> ---
>   drivers/thermal/uniphier_thermal.c | 26 +++++++++++---------------
>   1 file changed, 11 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/thermal/uniphier_thermal.c
> b/drivers/thermal/uniphier_thermal.c
> index 4111d99ef50e..1675174480aa 100644
> --- a/drivers/thermal/uniphier_thermal.c
> +++ b/drivers/thermal/uniphier_thermal.c
> @@ -248,8 +248,7 @@ static int uniphier_tm_probe(struct platform_device
> *pdev)
>   	struct regmap *regmap;
>   	struct device_node *parent;
>   	struct uniphier_tm_dev *tdev;
> -	const struct thermal_trip *trips;
> -	int i, ret, irq, ntrips, crit_temp = INT_MAX;
> +	int i, ret, irq, crit_temp = INT_MAX;
>   
>   	tdev = devm_kzalloc(dev, sizeof(*tdev), GFP_KERNEL);
>   	if (!tdev)
> @@ -296,20 +295,17 @@ static int uniphier_tm_probe(struct platform_device
> *pdev)
>   		return PTR_ERR(tdev->tz_dev);
>   	}
>   
> -	/* get trip points */
> -	trips = of_thermal_get_trip_points(tdev->tz_dev);
> -	ntrips = of_thermal_get_ntrips(tdev->tz_dev);
> -	if (ntrips > ALERT_CH_NUM) {
> -		dev_err(dev, "thermal zone has too many trips\n");
> -		return -E2BIG;
> -	}
> -
>   	/* set alert temperatures */
> -	for (i = 0; i < ntrips; i++) {
> -		if (trips[i].type == THERMAL_TRIP_CRITICAL &&
> -		    trips[i].temperature < crit_temp)
> -			crit_temp = trips[i].temperature;
> -		uniphier_tm_set_alert(tdev, i, trips[i].temperature);
> +	for (i = 0; i < thermal_zone_get_num_trips(tdev->tz_dev); i++) {
> +
> +		struct thermal_trip trip;
> +
> +		thermal_zone_get_trip(tdev->tz_dev, i, &trip);
> +		

I found this line has white spaces. Otherwise,

Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>

> +		if (trip.type == THERMAL_TRIP_CRITICAL &&
> +		    trip.temperature < crit_temp)
> +			crit_temp = trip.temperature;
> +		uniphier_tm_set_alert(tdev, i, trip.temperature);
>   		tdev->alert_en[i] = true;
>   	}
>   	if (crit_temp > CRITICAL_TEMP_LIMIT) {
> 

---
Best Regards
Kunihiko Hayashi