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author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2016-04-12 18:00:53 +0200 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2016-04-15 16:04:32 +0200 |
commit | c686090f14e0673f9b1a3aec316098742f8e003c (patch) | |
tree | 76406006013a8b30a82df22bd8632f12347b7ac5 /Documentation/devicetree/bindings/gpio/gpio-poweroff.txt | |
parent | 35b3fc8876ef927885f68e481efc049285d07e53 (diff) | |
download | op-kernel-dev-c686090f14e0673f9b1a3aec316098742f8e003c.zip op-kernel-dev-c686090f14e0673f9b1a3aec316098742f8e003c.tar.gz |
gpio/reset: move gpio-{poweroff|restart} DT doc to proper place
I did only find them after a fuzzy search, so let them be where one
would expect them.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/gpio/gpio-poweroff.txt')
-rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-poweroff.txt | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt b/Documentation/devicetree/bindings/gpio/gpio-poweroff.txt deleted file mode 100644 index d4eab92..0000000 --- a/Documentation/devicetree/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. - -Examples: - -gpio-poweroff { - compatible = "gpio-poweroff"; - gpios = <&gpio 4 0>; -}; |