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Commit 15e2a357 authored by Pavel Machek's avatar Pavel Machek Committed by Linus Walleij
Browse files

gpio/board.txt: point to gpiod_set_value 



gpiod_set_value() is preffered interface these days, so add a
pointer. Also fix a missing ).

Signed-off-by: default avatarPavel Machek <pavel@ucw.cz>
[Fixed some grammar and reworded]
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 1001354c

Documentation/gpio/board.txt

+7 −4
Original line number Original line Diff line number Diff line
@@ -6,7 +6,7 @@ Note that it only applies to the new descriptor-based interface. For a 
description of the deprecated integer-based GPIO interface please refer to

description of the deprecated integer-based GPIO interface please refer to

gpio-legacy.txt (actually, there is no real mapping possible with the old

gpio-legacy.txt (actually, there is no real mapping possible with the old

interface; you just fetch an integer from somewhere and request the

interface; you just fetch an integer from somewhere and request the

corresponding GPIO.

corresponding GPIO).





All platforms can enable the GPIO library, but if the platform strictly

All platforms can enable the GPIO library, but if the platform strictly

requires GPIO functionality to be present, it needs to select GPIOLIB from its

requires GPIO functionality to be present, it needs to select GPIOLIB from its
@@ -162,6 +162,9 @@ The driver controlling "foo.0" will then be able to obtain its GPIOs as follows: 




Since the "led" GPIOs are mapped as active-high, this example will switch their

Since the "led" GPIOs are mapped as active-high, this example will switch their

signals to 1, i.e. enabling the LEDs. And for the "power" GPIO, which is mapped

signals to 1, i.e. enabling the LEDs. And for the "power" GPIO, which is mapped

as active-low, its actual signal will be 0 after this code. Contrary to the legacy

as active-low, its actual signal will be 0 after this code. Contrary to the

integer GPIO interface, the active-low property is handled during mapping and is

legacy integer GPIO interface, the active-low property is handled during

thus transparent to GPIO consumers.
 
mapping and is thus transparent to GPIO consumers.



A set of functions such as gpiod_set_value() is available to work with

the new descriptor-oriented interface.