Subject: [PATCH V4] ARM: dts: am57xx-beagle-x15: Add GPIO controlled fan node

From: [email-masked] (Tony Lindgren)
Date: Wed, 7 Jan 2015 16:20:37 -0800

* Felipe Balbi <[email-masked]> [150105 09:30]:
> On Mon, Jan 05, 2015 at 10:32:29AM -0600, Nishanth Menon wrote:
> > 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 <[email-masked]>
> 
> have already reviewed this one previously:
> 
> Reviewed-by: Felipe Balbi <[email-masked]>

Applying this into omap-for-v3.20/dt instead of the
earlier version thanks.

Tony

> > ---
> > V4: Change format of the speed-map used.
> > V3: https://patchwork.kernel.org/patch/5562121/
> > V2: https://patchwork.kernel.org/patch/5445111/
> > V1: https://patchwork.kernel.org/patch/5444911/
> > 
> > Enable and disable can be controlled by (post the RPM, it finds
> > closest match - even a 1 will do)
> > 
> > echo '13000' > /sys/class/hwmon/hwmon0/fan1_target
> > and
> > echo '0' > /sys/class/hwmon/hwmon0/fan1_target
> > 
> > Test log: http://slexy.org/view/s2T0ajh46z
> > 
> > requires CONFIG_GPIO_PALMAS and CONFIG_SENSORS_GPIO_FAN to be operational
> > Applies on v3.19-rc1
> > 
> >  arch/arm/boot/dts/am57xx-beagle-x15.dts |   14 ++++++++++++++
> >  1 file changed, 14 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/am57xx-beagle-x15.dts b/arch/arm/boot/dts/am57xx-beagle-x15.dts
> > index 6c2e8e4..c5d4cea 100644
> > --- a/arch/arm/boot/dts/am57xx-beagle-x15.dts
> > +++ b/arch/arm/boot/dts/am57xx-beagle-x15.dts
> > @@ -80,6 +80,14 @@
> >  			default-state = "off";
> >  		};
> >  	};
> > +
> > +	gpio_fan: gpio_fan {
> > +		/* Based on 5v 500mA AFB02505HHB */
> > +		compatible = "gpio-fan";
> > +		gpios =  <&tps659038_gpio 1 GPIO_ACTIVE_HIGH>;
> > +		gpio-fan,speed-map = <0     0>,
> > +				     <13000 1>;
> > +	};
> >  };
> >  
> >  &dra7_pmx_core {
> > @@ -394,6 +402,12 @@
> >  			wakeup-source;
> >  			ti,palmas-long-press-seconds = <12>;
> >  		};
> > +
> > +		tps659038_gpio: tps659038_gpio {
> > +			compatible = "ti,palmas-gpio";
> > +			gpio-controller;
> > +			#gpio-cells = <2>;
> > +		};
> >  	};
> >  
> >  	tmp102: tmp102 at 48 {
> > -- 
> > 1.7.9.5
> > 
> > --
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> 
> -- 
> balbi