tree 8ec1e50230e9b0297253ccc7ad50903a16f7585f
parent aad38b75fb632200eb64282469458d21ce2cc39a
author Bjorn Andersson <bjorn.andersson@sonymobile.com> 1440780258 -0700
committer Linus Walleij <linus.walleij@linaro.org> 1442214723 +0200

gpio: Propagate errors from chip->get()

It's possible to have gpio chips hanging off unreliable remote buses
where the get() operation will fail to acquire a readout of the current
gpio state. Propagate these errors to the consumer so that they can
act on, retry or ignore these failing reads, instead of treating them as
the line being held high.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>