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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>
This commit is contained in:
Linus Walleij 2013-11-25 15:43:37 +01:00
parent b4a87c9b96
commit e9c9489f10
1 changed files with 4 additions and 2 deletions
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6
include/linux/pinctrl/pinconf-generic.h
View File

@ -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.