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Given the intent behind gpiod_get_optional() and friends it does not make sense to return -ENOSYS when GPIOLIB is disabled: the driver is expected to work just fine without gpio so let's behave as if gpio was not found. Otherwise we have to special-case -ENOSYS in drivers. Note that there was objection that someone might forget to enable GPIOLIB when dealing with a platform that has device that actually specifies optional gpio and we'll break it. I find this unconvincing as that would have to be the *only GPIO* in the system, which is extremely unlikely. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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| .. | ||
| 00-INDEX | ||
| board.txt | ||
| consumer.txt | ||
| driver.txt | ||
| drivers-on-gpio.txt | ||
| gpio-legacy.txt | ||
| gpio.txt | ||
| sysfs.txt | ||