linux-kernel - RE: [PATCH 1/3] Thermal: core: Ask .get_trip_temp() to register thermal zone device.

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Date:	Mon, 20 May 2013 06:44:05 +0000
From:	"R, Durgadoss" <durgadoss.r@...el.com>
To:	Jonghwa Lee <jonghwa3.lee@...sung.com>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Zhang, Rui" <rui.zhang@...el.com>,
	Eduardo Valentin <eduardo.valentin@...com>,
	"Amit Dinel Kachhap" <amit.kachhap@...aro.org>,
	MyungJoo Ham <myungjoo.ham@...sung.com>
Subject: RE: [PATCH 1/3] Thermal: core: Ask .get_trip_temp() to register
 thermal zone device.

> -----Original Message-----
> From: linux-pm-owner@...r.kernel.org [mailto:linux-pm-
> owner@...r.kernel.org] On Behalf Of Jonghwa Lee
> Sent: Saturday, May 18, 2013 3:20 PM
> To: linux-pm@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org; Zhang, Rui; Eduardo Valentin; Amit Dinel
> Kachhap; Jonghwa Lee; MyungJoo Ham
> Subject: [PATCH 1/3] Thermal: core: Ask .get_trip_temp() to register thermal
> zone device.
> 
> This patch adds a requirement needing .get_trip_temp() callback
> function for registering thermal zone device. This function is
> used when thermal zone is updated and essential where thermal core
> handles thermal trip based only polling way not hw interrupt.

Nice catch. Looks fine,
Acked-by: Durgadoss R <durgadoss.r@...el.com>

Thanks,
Durga

> 
> Signed-off-by: Jonghwa Lee <jonghwa3.lee@...sung.com>
> Signed-off-by: MyungJoo Ham <myungjoo.ham@...sung.com>
> ---
>  drivers/thermal/thermal_core.c |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/thermal/thermal_core.c
> b/drivers/thermal/thermal_core.c
> index d755440..f753f48 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -1624,7 +1624,7 @@ struct thermal_zone_device
> *thermal_zone_device_register(const char *type,
>  	if (!ops || !ops->get_temp)
>  		return ERR_PTR(-EINVAL);
> 
> -	if (trips > 0 && !ops->get_trip_type)
> +	if (trips > 0 && (!ops->get_trip_type || !ops->get_trip_temp))
>  		return ERR_PTR(-EINVAL);
> 
>  	tz = kzalloc(sizeof(struct thermal_zone_device), GFP_KERNEL);
> --
> 1.7.9.5
> 
> --
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