Skip to content

[IMX8MM][MYON2] Add support of HDMI video for U-Boot via modern NXP driver

Dmitry Petrov requested to merge seco_lf_v2021.04_develop_myon2-imx8mm-hdmi-new into seco_lf_v2021.04

This is an alternative version for the existing video driver for Myon2 board with I.MX8MM SoC.

By contrast with original driver in !201, which was based on heavily modified version of NXP driver, following changes have been introduced:

  • switched to the modern CONFIG_DM_VIDEO subsystem (instead of legacy CONFIG_VIDEO);
  • switched to the upstream version of NXP drivers for MIPI DSI bridge (CONFIG_VIDEO_SEC_MIPI_DSI and CONFIG_VIDEO_IMX_SEC_DSI);
  • switched to the existing NXP driver for ADV7535 (instead of a some routine hard-coded in display.c);
  • got rid of the custom/legacy display.c code for display detection.

This driver was successfully tested on Myon II with connected HDMI display — no regressions were found.

At the moment, the question of adding support of LVDS panels is under investigation. When it will be finished a separate MR will be sent.

Edited by Dmitry Petrov

Merge request reports