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| author | Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> | 2018-09-21 12:36:03 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-09-25 09:34:48 +0200 |
| commit | ae9847f48a4b4bff0335da20be63ac84d94eb54c (patch) | |
| tree | ad76987a49c41717745779be2be1b3eb9ae34870 /include/linux/gpio | |
| parent | 32d064a16eaace1866610f36fb5f4b114d979246 (diff) | |
gpiolib: Fix gpio_direction_* for single direction GPIOs
GPIOs with no programmable direction are not required to implement
direction_output nor direction_input.
If we try to set an output direction on an output-only GPIO or input
direction on an input-only GPIO simply return 0.
This allows this single direction GPIO to be used by libgpiod.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/gpio')
0 files changed, 0 insertions, 0 deletions