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Documentation: gpio: fix bindings document

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[ imported from Linux Kernel, commit 74981fb81d83 ]
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Masahiro Yamada 2015-02-12 18:49:33 +09:00 committed by Simon Glass
parent f11199f0d0
commit ba25779384
1 changed files with 3 additions and 2 deletions
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5
doc/device-tree-bindings/gpio/gpio.txt
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@ -69,7 +69,8 @@ GPIO pin number, and GPIO flags as accepted by the "qe_pio_e" gpio-controller.
----------------------------------
A gpio-specifier should contain a flag indicating the GPIO polarity; active-
high or active-low. If it does, the follow best practices should be followed:
high or active-low. If it does, the following best practices should be
followed:
The gpio-specifier's polarity flag should represent the physical level at the
GPIO controller that achieves (or represents, for inputs) a logically asserted
@ -147,7 +148,7 @@ contains information structures as follows:
numeric-gpio-range ::=
<pinctrl-phandle> <gpio-base> <pinctrl-base> <count>
named-gpio-range ::= <pinctrl-phandle> <gpio-base> '<0 0>'
gpio-phandle : phandle to pin controller node.
pinctrl-phandle : phandle to pin controller node
gpio-base : Base GPIO ID in the GPIO controller
pinctrl-base : Base pinctrl pin ID in the pin controller
count : The number of GPIOs/pins in this range