tree 361aee5bc66501fcc0d322f55503f85de7a4c065
parent 0c0451e7634564052a045d4398a91ea4ef1f755b
author Linus Walleij <linus.walleij@linaro.org> 1461745424 +0200
committer Linus Walleij <linus.walleij@linaro.org> 1461745424 +0200

gpio: clarify open drain/source docs

Make the text clearer, remove reference to confusing "positive"
and "negative" and elaborate a bit.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>