tree f505ee437fb3dacf90c89ee399b727e25cdd266d
parent cd97a449a7cedf7d9a61882a672d317429b5d599
author Laxman Dewangan <ldewangan@nvidia.com> 1457703802 +0530
committer Linus Walleij <linus.walleij@linaro.org> 1460551322 +0200

gpio: of: Return error if gpio hog configuration failed

If GPIO hog configuration failed while adding OF based
gpiochip() then return the error instead of ignoring it.

This helps of properly handling the gpio driver dependency.

When adding the gpio hog nodes for NVIDIA's Tegra210 platforms,
the gpio_hogd() fails with EPROBE_DEFER because pinctrl is not
ready at this time and gpio_request() for Tegra GPIO driver
returns error. The error was not causing the Tegra GPIO driver
to fail as the error was getting ignored.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Cc: Benoit Parrot <bparrot@ti.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>