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authorDouglas Anderson <dianders@chromium.org>2020-04-29 03:23:27 +0300
committerLinus Walleij <linus.walleij@linaro.org>2020-04-29 15:15:25 +0300
commit36b5215436ad115551e12478ceb3be4a2279e415 (patch)
tree9e46b3a25a5a1e29ab4a8869e3332412f48e9dba /include/linux/gpio
parentdc5c1439376de8e107396ff5bdbc05af3b04ff0b (diff)
downloadlinux-36b5215436ad115551e12478ceb3be4a2279e415.tar.xz
gpio: Document proper return value for gpio drivers
The legacy defines GPIOF_DIR_XXX are only for consumers. Document the proper ones. Also: don't use "_XXX" since that's harder to find with "git grep". Just list both of the values. Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20200428172322.1.I396f351e364f3c09df7c7606e79abefb8682c092@changeid Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/gpio')
-rw-r--r--include/linux/gpio/driver.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index b8fc92c177eb..7b5f5681b7e4 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -267,9 +267,9 @@ struct gpio_irq_chip {
* @free: optional hook for chip-specific deactivation, such as
* disabling module power and clock; may sleep
* @get_direction: returns direction for signal "offset", 0=out, 1=in,
- * (same as GPIOF_DIR_XXX), or negative error.
- * It is recommended to always implement this function, even on
- * input-only or output-only gpio chips.
+ * (same as GPIO_LINE_DIRECTION_OUT / GPIO_LINE_DIRECTION_IN),
+ * or negative error. It is recommended to always implement this
+ * function, even on input-only or output-only gpio chips.
* @direction_input: configures signal "offset" as input, or returns error
* This can be omitted on input-only or output-only gpio chips.
* @direction_output: configures signal "offset" as output, or returns error