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authorLinus Walleij <linus.walleij@linaro.org>2017-09-26 01:09:03 +0200
committerGuenter Roeck <linux@roeck-us.net>2017-10-29 18:36:03 -0700
commit9dfe310ed5f0802cba5ec29f2b5f5f92ba8ad9e9 (patch)
treef3db8119c8de5dd6fb7f61f6aa73fa1f8fd11420 /Documentation/devicetree/bindings/gpio/gpio-fan.txt
parent24fae2b5b61da0cec6b94059552ae97ccc498ccc (diff)
downloadlinux-9dfe310ed5f0802cba5ec29f2b5f5f92ba8ad9e9.tar.bz2
hwmon: (gpio-fan) Move DT bindings to the right place
This moves the GPIO fan bindings to the hwmon bindings. The GPIO fan is a hwmon class hardware, not related to GPIO other than being a consumer of GPIOs. Cc: devicetree@vger.kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/devicetree/bindings/gpio/gpio-fan.txt')
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-fan.txt40
1 files changed, 0 insertions, 40 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-fan.txt b/Documentation/devicetree/bindings/gpio/gpio-fan.txt
deleted file mode 100644
index 439a7430fc68..000000000000
--- a/Documentation/devicetree/bindings/gpio/gpio-fan.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-Bindings for fan connected to GPIO lines
-
-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.
-- alarm-gpios: This pin going active indicates something is wrong with
- the fan, and a udev event will be fired.
-- cooling-cells: If used as a cooling device, must be <2>
- Also see: Documentation/devicetree/bindings/thermal/thermal.txt
- min and max states are derived from the speed-map of the fan.
-
-Note: At least one the "gpios" or "alarm-gpios" properties must be set.
-
-Examples:
-
- gpio_fan {
- compatible = "gpio-fan";
- gpios = <&gpio1 14 1
- &gpio1 13 1>;
- gpio-fan,speed-map = <0 0
- 3000 1
- 6000 2>;
- alarm-gpios = <&gpio1 15 1>;
- };
- gpio_fan_cool: gpio_fan {
- compatible = "gpio-fan";
- gpios = <&gpio2 14 1
- &gpio2 13 1>;
- gpio-fan,speed-map = <0 0>,
- <3000 1>,
- <6000 2>;
- alarm-gpios = <&gpio2 15 1>;
- #cooling-cells = <2>; /* min followed by max */
- };