diff options
| author |   Andrew Lunn <andrew.lunn@ruag.com> | 2012-12-28 13:25:09 +0100 |
|---|---|---|
| committer |   Anton Vorontsov <anton@enomsg.org> | 2013-01-06 14:00:23 -0800 |
| commit | e8fc721a9ab8dd6723063a92f5c5fdb5eaffbd6e (patch) | |
| tree | b00f842e79fdd1730e87395a7f1d1983d7cd0fd3 /Documentation/devicetree | |
| parent | MAINTAINERS: Add LP8788 MFD driver entry (diff) | |
| download | linux-dev-e8fc721a9ab8dd6723063a92f5c5fdb5eaffbd6e.tar.xz linux-dev-e8fc721a9ab8dd6723063a92f5c5fdb5eaffbd6e.zip | |
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')
| -rw-r--r-- | Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt new file mode 100644 index 000000000000..9a599d27bd75 --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/qnap-poweroff.txt @@ -0,0 +1,13 @@ +* 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 |