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gpio_request Fails in linux 4.14.98

Question asked by Yashavantha Shetty on Oct 9, 2019
Latest reply on Oct 10, 2019 by igorpadykov



I am using Linux 4.14.98 Ga release source.

Here when I tried to requets a gpio in 'arch/arm/mach-imx/mach-imx6q.c', it fails with EPROBE_DEFER (517) error.

But able to export same gpio using SYSFS using "echo * > /sys/class/gpio/export" command.

Why it is not able to access it in mach-imx6q.c file? is there any driver dependency?


Best Regards,