LCD display on imx6, linux 5.4

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LCD display on imx6, linux 5.4

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woutervh
Contributor IV

I want to add a LCD to a custom imx6 board.

Before, there was the file mxc_lcdif.c, which had the fsl,lcd compatible. Then you had a node in the devicetree, describing which ipu/di/...

However, this seems to be removed/changed in kernel 5.4?

How do I add an lcd display the proper way now?

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joanxie
NXP TechSupport
NXP TechSupport

you can refer to the link as below, how to change the dts file for lcd

https://community.nxp.com/message/483756 

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woutervh
Contributor IV

Yes, but that is my problem. This way is no longer working on 5.4....

It was working fine on 4.19 (also here)

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joanxie
NXP TechSupport
NXP TechSupport

I know what you mean, I have built 5.4.3-1.0.0, and searched mxc_lcdif.c, it seems 5.4.3 has removed this file

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woutervh
Contributor IV

Exactly. And to my understanding, that's a mistake someone made in a merge somewhere. I've just put it back, and lcd works perfectly again as it did before...

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joanxie
NXP TechSupport
NXP TechSupport

thanks for your sharing, I don't know who is the owner of this, but your test is very useful for other customers

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