Custom LCD panel on stm32157C-DK2 probe problems

[MBeli.1]

We have custom board design based on stm32157C-DK2. We just ise other LCD panel. We have updated device tree and probe function of panel is called. But in method: ltdc_load it fails to find any panel.bridge when calling: drm_of_find_panel_or_bridge (return -517 EPROBE_DEFFER)

Is there something else to check if we want to use other panel please? Thanks.

[OlivierK]

Hi MBeli.1 (Community Member)

Have you checked this page?

https://wiki.st.com/stm32mpu/wiki/DRM_KMS_overview

Could you please give the context? which OSTL version used, what LCD panel model?

Rgds,

Olivier

[MBeli.1 · Accepted solution]

Hi @OlivierK​ ,

I've already resolved an issue. I have an issue with hdmi and ltdc nodes. Debugging took me a while but display now works as expected. Thanks.

[OlivierK]

H iMBeli.1 (Community Member)

Thanks for your return of experience. Glad that you are sorted out.