LVDS with mallow Carrier Board

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Based on the context provided, here are some steps you can take to resolve the issues with your LVDS display setup on the Verdin iMX 8M Plus with the Mallow carrier board:

1. Cyclic Dependency:

   • Review the device tree overlays you are using, specifically verdin-imx8mp_panel-cap-touch-10inch-lvds_overlay.dtbo and verdin-imx8mp_spidev_overlay.dtbo. Check for any circular references or misconfigurations that could be causing the cyclic dependency error. You may need to adjust the order of the overlays or modify their definitions to resolve the conflict.

2. Missing Power Supply:

   • Verify that the power supply for the backlight is correctly defined in the device tree. Ensure that the necessary power regulators are specified and that the connections are properly made on the Mallow carrier board. The warning about using a dummy regulator suggests that the system cannot find the specified power supply, so double-check the device tree configuration for any missing or incorrect entries related to the backlight power supply.

3. Consult Documentation:

   • Refer to the Toradex documentation for the specific LVDS display and the Mallow carrier board. This may provide insights into required configurations and troubleshooting steps that are specific to your hardware setup.

4. Examine dmesg Output:

   • Continue to monitor the dmesg output for any additional error messages that may provide further clues about the configuration issues. Addressing these messages systematically can help in resolving the overall setup problems.

By following these recommendations, you should be able to address the errors and configure the LVDS display correctly.

Please, also check if these links can help you solve your problem:

Verdin iMX8m plus two LVDS display support

Hi there, I would like to know if DSI/LVDS bridge IC is required to support two separate LVDS displays in Verdin iMX8m plus. In the data sheet, it is not stated that the LVDS I/F in the SoM supports two independent single channels. But the block diagram in the date sheet implies that 2 single LVDS channels are supported. Please let me know which one is correct.

Enable 10.1" LVDS display on Mallow carrier board

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