linux-kernel - Re: [PATCH v4 4/8] ARM: dts: Add pwm-fan node to the Odroid-U3 board

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Message-ID: <54E490AA.3020301@suse.de>
Date:	Wed, 18 Feb 2015 14:16:26 +0100
From:	Andreas Färber <afaerber@...e.de>
To:	Lukasz Majewski <l.majewski@...sung.com>
CC:	Eduardo Valentin <edubezval@...il.com>,
	Kamil Debski <k.debski@...sung.com>,
	Jean Delvare <jdelvare@...e.de>,
	Guenter Roeck <linux@...ck-us.net>,
	Kukjin Kim <kgene@...nel.org>, 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,
	Sjoerd Simons <sjoerd.simons@...labora.co.uk>,
	Abhilash Kesavan <kesavan.abhilash@...il.com>,
	Abhilash Kesavan <a.kesavan@...sung.com>
Subject: Re: [PATCH v4 4/8] ARM: dts: Add pwm-fan node to the Odroid-U3 board

Am 18.02.2015 um 11:07 schrieb Lukasz Majewski:
> From: Kamil Debski <k.debski@...sung.com>
> 
> Add pwm-fan node to the Odroid-U3 board file to enable PWM control of the
> cooling fan. In addition, add the "pwm" label to the pwm@...D0000 node
> in the exynos4412.dtsi.
> 
> Signed-off-by: Kamil Debski <k.debski@...sung.com>
> [Rebased on the newest mainline by l.majewski@...sung.com]

You need to sign off patches you submit.

> ---
> Changes since v1:
> - added pwm label to the pwm@...D0000 node in exynos4.dtsi
> - use the pwm label in the exynos4412-odroidu3.dts
> - change order or properties in the pwn-fan node, to be sorted
>   in alphabetical order
> 
> ---
>  arch/arm/boot/dts/exynos4.dtsi            |  2 +-
>  arch/arm/boot/dts/exynos4412-odroidu3.dts | 13 +++++++++++++
>  2 files changed, 14 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
> index f18d746..75266e3 100644
> --- a/arch/arm/boot/dts/exynos4.dtsi
> +++ b/arch/arm/boot/dts/exynos4.dtsi
> @@ -582,7 +582,7 @@
>  		status = "disabled";
>  	};
>  
> -	pwm@...D0000 {
> +	pwm: pwm@...D0000 {
>  		compatible = "samsung,exynos4210-pwm";
>  		reg = <0x139D0000 0x1000>;
>  		interrupts = <0 37 0>, <0 38 0>, <0 39 0>, <0 40 0>, <0 41 0>;
> diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts b/arch/arm/boot/dts/exynos4412-odroidu3.dts
> index c8a64be..60bd1e4 100644
> --- a/arch/arm/boot/dts/exynos4412-odroidu3.dts
> +++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts
> @@ -31,6 +31,19 @@
>  			linux,default-trigger = "heartbeat";
>  		};
>  	};
> +
> +	pwm-fan {
> +		compatible = "pwm-fan";
> +		pwms = <&pwm 0 10000 0>;
> +		status = "okay";

Status "okay" is only needed for pre-existing nodes that would have
status "disabled" otherwise, such as below. Just drop it here.

Regards,
Andreas

> +	};
> +};
> +
> +&pwm {
> +	pinctrl-0 = <&pwm0_out>;
> +	pinctrl-names = "default";
> +	samsung,pwm-outputs = <0>;
> +	status = "okay";
>  };
>  
>  &usb3503 {
> 


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