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Original question:

Linux/AM3358: LCD panel doesn't work

Linux/AM3352: LCD error

user6041157
Prodigy 50 points
Part Number: AM3352

Tool/software: Linux

I am doing a kernel upgrade. When I load lcd, I get the following error. Is there some need to add some settings in the kernel?

My kernel version is linux 4.14.79，Lcd model is TL070WSH51，My device tree uses a device tree that I have used before and can start normally.

  • 0
    TI__Genius 13505 points

    Thanks for your patience.

    This community thread might help you: https://cospandesign.github.io/linux,am335x/2018/10/16/am335x-lcd-panel.html

    Regards,
    Mike

  • 0 in reply to Michael Erdahl
    Prodigy 50 points
    Unfortunately, I tried it with that article. But the lcd doesn't work. I make the DRM Support for TI LCDC Display Controller to (M) and insmod after boot , However, the problem still exists . Details as follow：

    root@am335x-evm:/lib/modules/4.14.79-ge669d52447/kernel/drivers# insmod tilcdc.ko
    [ 86.474902] into panel probe
    [ 86.474902]
    [ 86.489612] tilcdc init
    [ 86.489612]
    [ 86.494122] panel probe ok
    [ 86.494122]
    [ 86.510527] OF: graph: no port node found in /ocp/lcdc@4830e000
    [ 86.517604] OF: graph: no port node found in /ocp/lcdc@4830e000
    [ 86.539063] OF: graph: no port node found in /ocp/lcdc@4830e000
    [ 86.559565] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
    [ 86.566639] [drm] No driver support for vblank timestamp query.
    [ 86.599959] Console: switching to colour frame buffer device 128x37
    [ 86.606760] tilcdc 4830e000.lcdc: fb0: frame buffer device
    [ 86.651071] [drm] Initialized tilcdc 1.0.0 20121205 for 4830e000.lcdc on minor 0