i.MX ProcessorsのトピックAdd a LCD panel (ST7701 controller) on linux 5.4.47 with i.MX8M mini

Add a LCD panel (ST7701 controller) on linux 5.4.47 with i.MX8M mini

Hardevsinh_Palaniya — Mon, 23 May 2022 06:32:38 GMT

Hi,

I tried to add a new panel in i.MX8M Mini with ST7701 controller on Yocto kernel 5.4.47. I got error "imx_sec_dsim_drv 32e10000.mipi_dsi: Failed to attach bridge: 32e10000.mipi_dsi"

After that probe completed successfully with sending init sequence. I can also confirm fbset on board, but can not see anything on display.

Can you please guide me how to solve the issue?
Any help will be appreciated.

Thanks

Re: Add a LCD panel (ST7701 controller) on linux 5.4.47 with i.MX8M mini

Hardevsinh_Palaniya — Tue, 24 May 2022 06:18:30 GMT

Can somebody assist me with this?

Re: Add a LCD panel (ST7701 controller) on linux 5.4.47 with i.MX8M mini

Zhiming_Liu — Thu, 26 May 2022 01:52:44 GMT

Hi @Hardevsinh_Palaniya

Can you share your dts changes?

Re: Add a LCD panel (ST7701 controller) on linux 5.4.47 with i.MX8M mini

Hardevsinh_Palaniya — Sat, 28 May 2022 07:15:53 GMT

Thanks for your reply. My problem is already solved.
I follow the link bellow and replace driver with @fangkai 's driver.
https://community.nxp.com/t5/i-MX-Processors/how-to-add-a-new-panel-with-imx8mm-evk-I-got-some-problem/td-p/885656

With above link and minor changes, My LCD panel worked.