Hello,
PRE/PRG feature can help to avoid a potential IPU display under-run in high
loading applications. This feature is "visible" under very heavy loaded system.
Please use IPU driver description in Linux documentation how to configure
the PRE/PRG. In particular look at section 6.3.2 [Image Processing Unit (IPU)]
of "i.MX_Reference_Manual.pdf" in L4.14.78.
https://www.nxp.com/webapp/Download?colCode=L4.14.78_1.0.0_LINUX_DOCS
Have a great day,
Yuri
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