topic Re: TFT3P5581-T MIPI display help in i.MX Processors

TFT3P5581-T MIPI display help

ferfersan6 — Wed, 21 Oct 2020 13:30:50 GMT

Hello.

I just acquired the MIPI display that I mention in the subject. Is there any information about setting it up? I am really new to displays and if somebody suggests me "getting started" information I would be very pleased. I have been researching the whole internet but did not found nothing really interesting.

I am working on a i.MX7ULP-EVK so it has a MIPI-DSI connector which matches perfectly with the display.

I have read about the device-tree and the MIPI driver on the Linux Reference Manual but I do not know how to take that information and make changes on my board.

Thanks in advance.

Re: TFT3P5581-T MIPI display help

igorpadykov — Thu, 22 Oct 2020 00:39:55 GMT

Hi ferfersan6

this lcd is supported in bsps, one can use imx7ulp-evkb-mipi.dts :

https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm/boot/dts/imx7ulp-evkb-mipi.dts?h=imx_5.4.47_2.2.0

Linux documentation:

https://www.nxp.com/design/software/embedded-software/i-mx-software/embedded-linux-for-i-mx-applications-processors:IMXLINUX?tab=In-Depth_Tab

Best regards
igor

Re: TFT3P5581-T MIPI display help

ferfersan6 — Thu, 22 Oct 2020 06:48:55 GMT

Thank you for your response.

The image already had the .dts you mentioned. Is there any example program to use the display? I would like to take it as reference for the future.

Regards.

Re: TFT3P5581-T MIPI display help

igorpadykov — Thu, 22 Oct 2020 10:21:00 GMT

>Is there any example program to use the display?

examples are linux fbdev display framework,

please look at sect.6.4.2 MIPI DSI Interface i.MX Linux Reference Manual

simple unit test

https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_fb_test/doc/FSL-UT-FB-003.txt?h=imx_5.4.47_2.2.0

Best regards
igor