IMX6ULL GPIO device tree customization

[vasudhevan]

I referred many community links not fully understood.

I checked with sd card detect pin it's working fine.

1. It's compulsory uboot device tree also needs to modify ? 
2. Both uboot and kernel device tree should be same ?
3. Can i get example kernel device tree structure for gpio and input button customization ?
4. How this customization imx gpio device driver knows and how its working ?

Regards

Vasu

[igorpadykov]

Hi Vasu

it is not necessary to use uboot device tree and general overview for both can be found on web:

arm - Why Device Tree Structure (DTS) file is needed both in bootloader and kernel source code? - St... 

for gpio and device tree customization one can look on

https://boundarydevices.com/mx6-device-tree-customization/ 

Definitive GPIO guide - Studio Kousagi Wiki 

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------