path: root/dts/Bindings/gpio/gpio-poweroff.txt
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Diffstat (limited to 'dts/Bindings/gpio/gpio-poweroff.txt')
1 files changed, 0 insertions, 36 deletions
diff --git a/dts/Bindings/gpio/gpio-poweroff.txt b/dts/Bindings/gpio/gpio-poweroff.txt
deleted file mode 100644
index d4eab9227e..0000000000
--- a/dts/Bindings/gpio/gpio-poweroff.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-Driver a GPIO line that can be used to turn the power off.
-The driver supports both level triggered and edge triggered power off.
-At driver load time, the driver will request the given gpio line and
-install a pm_power_off handler. If the optional properties 'input' is
-not found, the GPIO line will be driven in the inactive
-state. Otherwise its configured as an input.
-When the pm_power_off is called, the gpio is configured as an output,
-and drive active, so triggering a level triggered power off
-condition. This will also cause an inactive->active edge condition, so
-triggering positive edge triggered power off. After a delay of 100ms,
-the GPIO is set to inactive, thus causing an active->inactive edge,
-triggering negative edge triggered power off. After another 100ms
-delay the GPIO is driver active again. If the power is still on and
-the CPU still running after a 3000ms delay, a WARN_ON(1) is emitted.
-Required properties:
-- compatible : should be "gpio-poweroff".
-- gpios : The GPIO to set high/low, see "gpios property" in
- Documentation/devicetree/bindings/gpio/gpio.txt. If the pin should be
- low to power down the board set it to "Active Low", otherwise set
- gpio to "Active High".
-Optional properties:
-- input : Initially configure the GPIO line as an input. Only reconfigure
- it to an output when the pm_power_off function is called. If this optional
- property is not specified, the GPIO is initialized as an output in its
- inactive state.
-gpio-poweroff {
- compatible = "gpio-poweroff";
- gpios = <&gpio 4 0>;