gpio: make gpiod_direction_output take a logical value

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>

1 files changed, 1 insertions, 0 deletions

diff --git a/Documentation/gpio/consumer.txt b/Documentation/gpio/consumer.txt
index e42f77d8d4ca..09854fe59307 100644
--- a/Documentation/gpio/consumer.txt
+++ b/Documentation/gpio/consumer.txt
@@ -154,6 +154,7 @@ raw line value:
         void gpiod_set_raw_value(struct gpio_desc *desc, int value)
         int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc)
         void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value)
+        int gpiod_direction_output_raw(struct gpio_desc *desc, int value)
 
 The active-low state of a GPIO can also be queried using the following call: