linux-kernel - Re: [PATCH v2 5/8] hwmon: thermal: dts: Add properties to use pwm-fan device as a cooling device in Odroid U3

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Message-ID: <20150102185225.GB12485@developer>
Date:	Fri, 2 Jan 2015 14:52:27 -0400
From:	Eduardo Valentin <edubezval@...il.com>
To:	Lukasz Majewski <l.majewski@...sung.com>
Cc:	Kamil Debski <k.debski@...sung.com>,
	Jean Delvare <jdelvare@...e.de>,
	Guenter Roeck <linux@...ck-us.net>, lm-sensors@...sensors.org,
	Linux PM list <linux-pm@...r.kernel.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>, devicetree@...r.kernel.org,
	Lukasz Majewski <l.majewski@...ess.pl>,
	Kukjin Kim <kgene.kim@...sung.com>,
	linux-kernel@...r.kernel.org,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Abhilash Kesavan <kesavan.abhilash@...il.com>,
	Abhilash Kesavan <a.kesavan@...sung.com>
Subject: Re: [PATCH v2 5/8] hwmon: thermal: dts: Add properties to use
 pwm-fan device as a cooling device in Odroid U3

Patch subject should use a prefix like:
'arm: dts:....'

On Mon, Dec 22, 2014 at 05:27:45PM +0100, Lukasz Majewski wrote:
> With those bindings it is possible to use pwm-fan device available in
> Odroid U3 as a cooling device.
> 
> Signed-off-by: Lukasz Majewski <l.majewski@...sung.com>
> ---
> Changes for v2:
> - Rename cooling-pwm-values property to cooling-levels
> ---
>  arch/arm/boot/dts/exynos4412-odroidu3.dts | 33 ++++++++++++++++++++++++++++++-
>  1 file changed, 32 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts b/arch/arm/boot/dts/exynos4412-odroidu3.dts
> index 60bd1e4..380035d 100644
> --- a/arch/arm/boot/dts/exynos4412-odroidu3.dts
> +++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts
> @@ -32,11 +32,42 @@
>  		};
>  	};
>  
> -	pwm-fan {
> +	fan0: pwm-fan {
>  		compatible = "pwm-fan";
>  		pwms = <&pwm 0 10000 0>;
> +		cooling-min-state = <0>;
> +		cooling-max-state = <3>;
> +		#cooling-cells = <2>;
> +		cooling-levels = <0 102 170 255>;
>  		status = "okay";
>  	};
> +
> +	thermal-zones {
> +		cpu_thermal: cpu-thermal {
> +			cooling-maps {
> +				map0 {
> +				     trip = <&cpu_alert1>;
> +				     cooling-device = <&cpu0 7 7>;
> +				};
> +				map1 {
> +				     trip = <&cpu_alert2>;
> +				     cooling-device = <&cpu0 13 13>;
> +				};
> +				map2 {
> +				     trip = <&cpu_alert0>;
> +				     cooling-device = <&fan0 0 1>;
> +				};
> +				map3 {
> +				     trip = <&cpu_alert1>;
> +				     cooling-device = <&fan0 1 2>;
> +				};
> +				map4 {
> +				     trip = <&cpu_alert2>;
> +				     cooling-device = <&fan0 2 3>;
> +				};
> +			};
> +		};
> +	};
>  };
>  
>  &pwm {
> -- 
> 2.0.0.rc2
> 

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