Hi Jonathan,
Il 13/12/2018 03:55, Jonathan Liu ha scritto:
Can you precisely point me the sources of:
- u-boot
- kernel
- dts
you're using?
Thanks
U-Boot - git tag v2017.03 Linux - git tag v4.19.6 DTS - see device tree changes in https://github.com/net147/linux/tree/sun7i-drm-wip but change the compatible to "innolux,at070tn92"
With Linux v4.19.6 "innolux,at070tn92" doesn't even work and I suspect it is because of clock frequency tolerance check for pll setting, so it gets discarded from drm resulting in not having a crtc.
Anyway I've just re-checked the signals using another display: "innolux,at043tn24" that has a more rounded clock frequency, so it's accepted by drm and **signals are correct**. Unfortunately I don't have your same display here to test, so I can't help you about that precise panel.
Sorry. Best regards