Request for i.MX8M custom board with raydium-rm68200 panel dts file

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Request for i.MX8M custom board with raydium-rm68200 panel dts file

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koteswararao18
Contributor II

Dear Forum members,

i am trying to bring up display on iMx8mm processor board using raydium-rm68200 driver (drivers/gpu/drm/panel/panel-raydium-rm68200.c) in 5.10 kernel. 

Earlier discussed one of the issue specific to rm68200 panel driver in below link. one of the comment mentioned dts file is attached for rm68200 panel but it's not attached in the zip file mentioned in one of the comments.

Re: MIPI DSI LCD display in i.MX8M - NXP Community

Request to share rm68200 panel dts file for reference?

Regards

Nela

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1 Solution
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koteswararao18
Contributor II

done with it. closing.

View solution in original post

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koteswararao18
Contributor II

done with it. closing.

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koteswararao18
Contributor II

Done with it. closing.

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Chavira
NXP TechSupport
NXP TechSupport

Hi @koteswararao18!

Thank you for contacting NXP Support!

You can check the next device tree for reference:

https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/arch/arm64/boot/dts/freescale/imx8ulp-evk-rk055hd...

 

Is compatible with the next display:

https://www.nxp.com/design/design-center/development-boards-and-designs/i-mx-evaluation-and-developm...

 

Best Regards!

Chavira

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koteswararao18
Contributor II

Dear chavira

Thank you so much for your input.

>>https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/arch/arm64/boot/dts/freescale/imx8ulp-evk-rk055...
Referred above dts file and prepare/built successfully rm68200 panel dts file.

Now, For the customized LCD Panel (GH8555BLV) at my desk, it uses rm68200 panel driver  along with initialization of  below registers 0x11 and 0x29.

{{

DSI_CMD(0x11,0,0x00); //Sleep Out

DelayX1ms(150);
DSI_CMD(0x29,0,0x00); //Display On
DelayX1ms(50);

}}

How to add above piece of registers initialization code during initialization phase in rm68200 display panel code.

(drivers/gpu/drm/panel/panel-raydium-rm68200.c)(kernel version-5.10)

Referred below link 

https://forums.raspberrypi.com/viewtopic.php?t=332609 for register initialization but not didn't help much.

please do let me know if  you have inputs about it.

Regards

Nela

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