gpio: Cleanup kerneldoc

Some kerneldoc has become stale or wasn't quite correct from the outset.
Fix up the most serious issues to silence warnings when building the
documentation.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Thierry Reding 2017-07-24 16:57:22 +02:00 • committed by Linus Walleij
commit 950d55f5bf
2 changed files with 61 additions and 24 deletions