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Subject[PATCH] pinctrl: provide documentation pointer
Date
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>
---
include/linux/pinctrl/pinconf-generic.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index fb90ef5eb038..4b1432548e9e 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -83,7 +83,9 @@
* 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.
+ * 1 to indicate high level, argument 0 to indicate low level. (Please
+ * 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.
--
1.8.3.1


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