diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2013-11-25 15:43:37 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-12-03 10:08:46 +0100 |
| commit | e9c9489f1077880cb8332f3e1600bf8edba3e86a (patch) | |
| tree | d470a662b2f8307fd36c2dcab6d7dbbb19c7c93f /include/linux/pinctrl | |
| parent | b4a87c9b966f71922e54a336e90b485a5fba19b8 (diff) | |
pinctrl: provide documentation pointer
The PIN_CONFIG_OUTPUT parameter is really tricky to understand
and needs an explicit pointer to the documentation.
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/pinctrl')
| -rw-r--r-- | include/linux/pinctrl/pinconf-generic.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h index fb90ef5eb038..282309d7c4dc 100644 --- a/include/linux/pinctrl/pinconf-generic.h +++ b/include/linux/pinctrl/pinconf-generic.h @@ -82,8 +82,10 @@ * operation, if several modes of operation are supported these can be * passed in the argument on a custom form, else just use argument 1 * to indicate low power mode, argument 0 turns low power mode off. - * @PIN_CONFIG_OUTPUT: this will configure the pin in output, use argument - * 1 to indicate high level, argument 0 to indicate low level. + * @PIN_CONFIG_OUTPUT: this will configure the pin as an output. Use argument + * 1 to indicate high level, argument 0 to indicate low level. (Please + * see Documentation/pinctrl.txt, section "GPIO mode pitfalls" for a + * discussion around this parameter.) * @PIN_CONFIG_END: this is the last enumerator for pin configurations, if * you need to pass in custom configurations to the pin controller, use * PIN_CONFIG_END+1 as the base offset. |