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gpio: make gpiod_direction_output take a logical value

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The documentation was not clear about whether
gpio_direction_output should take a logical value or the physical
level on the output line, i.e. whether the ACTIVE_LOW status
would be taken into account.

This converts gpiod_direction_output to use the logical level
and adds a new gpiod_direction_output_raw for the raw value.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Philipp Zabel 2014-01-07 12:34:11 +01:00 • committed by Linus Walleij
commit ef70bbe1aa
4 changed files with 57 additions and 20 deletions
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2
include/asm-generic/gpio.h
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@ -69,7 +69,7 @@ static inline int gpio_direction_input(unsigned gpio)
}
static inline int gpio_direction_output(unsigned gpio, int value)
{
return gpiod_direction_output(gpio_to_desc(gpio), value);
return gpiod_direction_output_raw(gpio_to_desc(gpio), value);
}
static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)