How to set IR-receiver GPIO

[bbq56go]

Hi~!

Device is  i.MX 8M mini evk

yocto version is imx-4.14.78-1.0.0_ga

I have been trying ir-receiver solution.

 1. I tried to modify the dts file as below

.../tmp/work-shared/imx8mmevk/kernel-source/arch/arm64/boot/dts/freescale/fsl-imx8mm-evk.dts

      &iomux {

         pinctrl-names = "default";

                     :

                     :

                     :

                     :

      }

2. Kernel Compile..

   $ bitbake -c devshell virtual/kernel

      ------------------------------

      make Image

      make modules

      make dtbs

      ------------------------------

   $ bitbake -C compile virtual/kernel

3. And Copy&Paste new dtb file in My SD-card

4. but, It doesn't apply.     

Unfortunately, I'm not familiar with embedded Linux.

Please suggest me how can I supposed to add GPIO.

Best Regards,

[igorpadykov · Accepted solution]

Hi JaeHo

one can check yocto tutorials

i.MX Yocto Project: How can I (quickly) modify the kernel and test it? 

Getting started with Yocto on Wandboard - Wandboard Wiki 

Best regards
igor
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