Re: [PATCH] ARM: dts: am57xx-beagle-x15: Add GPIO controlled fan node

[Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>]

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On Fri, Dec 05, 2014 at 11:32:18AM -0600, Nishanth Menon wrote:
> From: "Menon, Nishanth" <nm-l0cyMroinI0@public.gmane.org>

do you want to sanitize your name ?

> TPS gpio now controls a 5v 500mA TL5209 regulator which may be supply
> a fan (such as AFB02505HHB) over J1 connector for various purposes.
> Provide device tree node to enable the same.
> 
> Signed-off-by: Nishanth Menon <nm-l0cyMroinI0@public.gmane.org>
> ---
> Depends on the following:
> https://patchwork.kernel.org/patch/5439201/
> https://patchwork.kernel.org/patch/5439191/
> 
> enable and disable can be controlled by
> echo '1' > /sys/class/hwmon/hwmon0/fan1_target
> and
> echo '0' > /sys/class/hwmon/hwmon0/fan1_target
> 
> requires CONFIG_GPIO_PALMAS and CONFIG_SENSORS_GPIO_FAN to be operational
> Applies on 
> https://git.kernel.org/cgit/linux/kernel/git/tmlind/linux-omap.git/log/?h=omap-for-v3.19/dt-v2
> 
>  arch/arm/boot/dts/am57xx-beagle-x15.dts |   15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
> index 49edbda..7fe82ef 100644
> --- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
> +++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
> @@ -80,6 +80,15 @@
>  			default-state = "off";
>  		};
>  	};
> +
> +	gpio_fan {
> +		/* Based on 5v 500mA AFB02505HHB */
> +		compatible = "gpio-fan";
> +		pinctrl-names = "default";

not needed.

> +		gpios =  <&tps659038_gpio 1 GPIO_ACTIVE_HIGH>;
> +		gpio-fan,speed-map = <0    0
> +				      13000 1>;
> +	};
>  };
>  
>  &dra7_pmx_core {
> @@ -314,6 +323,12 @@
>  			wakeup-source;
>  			ti,palmas-long-press-seconds = <12>;
>  		};
> +
> +		tps659038_gpio: tps659038_gpio {
> +			compatible = "ti,palmas-gpio";
> +			gpio-controller;
> +			#gpio-cells = <2>;
> +		};
>  	};
>  
>  	tmp102: tmp102@48 {
> -- 
> 1.7.9.5
> 

-- 
balbi

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