Hello Geert, On Mon, Mar 20, 2017 at 10:56:14AM +0100, Geert Uytterhoeven wrote: > Documentation/gpio/consumer.txt rightfully sates: > | Note that gpio_get*_optional() functions (and their managed variants), unlike > | the rest of gpiolib API, also return NULL when gpiolib support is disabled. > | This is helpful to driver authors, since they do not need to special case > | -ENOSYS return codes. System integrators should however be careful to enable > | gpiolib on systems that need it. I cannot find this paragraph in Documentation/gpio/consumer.txt: $ git grep -e 'ENOSYS' v4.11-rc3 -- Documentation/gpio/ <void> Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
