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 <n...@ti.com>
---
V3: Rebased to v3.19-rc1, added label for GPIO fan (for future cooling device
reference)
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..c171720 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@48 {
--
1.7.9.5
--
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