Required properties:
- compatible : "gpio-fan"
+
+Optional properties:
- gpios: Specifies the pins that map to bits in the control value,
ordered MSB-->LSB.
- gpio-fan,speed-map: A mapping of possible fan RPM speeds and the
control value that should be set to achieve them. This array
must have the RPM values in ascending order.
-
-Optional properties:
- alarm-gpios: This pin going active indicates something is wrong with
the fan, and a udev event will be fired.
+Note: At least one the "gpios" or "alarm-gpios" properties must be set.
+
Examples:
gpio_fan {