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authorAndrew Lunn <andrew.lunn@ruag.com>2012-12-28 13:25:09 +0100
committerAnton Vorontsov <anton@enomsg.org>2013-01-06 14:00:23 -0800
commite8fc721a9ab8dd6723063a92f5c5fdb5eaffbd6e (patch)
treeb00f842e79fdd1730e87395a7f1d1983d7cd0fd3 /Documentation/devicetree/bindings/power_supply
parent22f1229fe9a6790695f72b1cdba56fcaee867d75 (diff)
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power/reset: Add a new driver to turn QNAP board power off
The QNAP NAS boxes have a microcontroller attached to the SoCs second serial port. By sending it a simple command, it will turn the power for the board off. This driver registers a function for pm_power_off to send such a command. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
Diffstat (limited to 'Documentation/devicetree/bindings/power_supply')
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diff --git a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt
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+* QNAP Power Off
+
+QNAP NAS devices have a microcontroller controlling the main power
+supply. This microcontroller is connected to UART1 of the Kirkwood and
+Orion5x SoCs. Sending the charactor 'A', at 19200 baud, tells the
+microcontroller to turn the power off. This driver adds a handler to
+pm_power_off which is called to turn the power off.
+
+Required Properties:
+- compatible: Should be "qnap,power-off"
+
+- reg: Address and length of the register set for UART1
+- clocks: tclk clock
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