linux-kernel - Re: [PATCH 3/5] thermal/drivers/acpi: Use hot and critical ops

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Date:   Thu, 17 Dec 2020 07:28:46 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     rui.zhang@...el.com
Cc:     kai.heng.feng@...onical.com, lukasz.luba@....com,
        srinivas.pandruvada@...ux.intel.com, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        "open list:ACPI THERMAL DRIVER" <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH 3/5] thermal/drivers/acpi: Use hot and critical ops

On 10/12/2020 13:15, Daniel Lezcano wrote:
> The acpi driver wants to do a netlink notification in case of a hot or
> critical trip point. Implement the corresponding ops to be used for
> the thermal zone and use them instead of the notify ops.
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>

Is there any comment on this patch ?

> ---
>  drivers/acpi/thermal.c | 30 ++++++++++++++----------------
>  1 file changed, 14 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
> index 12c0ece746f0..b5e4bc9e3282 100644
> --- a/drivers/acpi/thermal.c
> +++ b/drivers/acpi/thermal.c
> @@ -677,27 +677,24 @@ static int thermal_get_trend(struct thermal_zone_device *thermal,
>  	return 0;
>  }
>  
> -
> -static int thermal_notify(struct thermal_zone_device *thermal, int trip,
> -			   enum thermal_trip_type trip_type)
> +static void acpi_thermal_zone_device_hot(struct thermal_zone_device *thermal)
>  {
> -	u8 type = 0;
>  	struct acpi_thermal *tz = thermal->devdata;
>  
> -	if (trip_type == THERMAL_TRIP_CRITICAL)
> -		type = ACPI_THERMAL_NOTIFY_CRITICAL;
> -	else if (trip_type == THERMAL_TRIP_HOT)
> -		type = ACPI_THERMAL_NOTIFY_HOT;
> -	else
> -		return 0;
> -
>  	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
> -					dev_name(&tz->device->dev), type, 1);
> +					dev_name(&tz->device->dev),
> +					ACPI_THERMAL_NOTIFY_HOT, 1);
> +}
>  
> -	if (trip_type == THERMAL_TRIP_CRITICAL && nocrt)
> -		return 1;
> +static void acpi_thermal_zone_device_critical(struct thermal_zone_device *thermal)
> +{
> +	struct acpi_thermal *tz = thermal->devdata;
>  
> -	return 0;
> +	acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
> +					dev_name(&tz->device->dev),
> +					ACPI_THERMAL_NOTIFY_CRITICAL, 1);
> +
> +	thermal_zone_device_critical(thermal);
>  }
>  
>  static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
> @@ -812,7 +809,8 @@ static struct thermal_zone_device_ops acpi_thermal_zone_ops = {
>  	.get_trip_temp = thermal_get_trip_temp,
>  	.get_crit_temp = thermal_get_crit_temp,
>  	.get_trend = thermal_get_trend,
> -	.notify = thermal_notify,
> +	.hot = acpi_thermal_zone_device_hot,
> +	.critical = acpi_thermal_zone_device_critical,
>  };
>  
>  static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
> 


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