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How to set colorkey for IMX7D

Question asked by 其东 刘 on Apr 20, 2020
Latest reply on Apr 21, 2020 by Joan Xie

How to set colorkey for IMX7D
Hello everyone,
My development board is the IMX7DSABRE board provided by the official website, the operating system version is Linux-4.9.88
I was reading the IMX7D official website manual (IMX7DRM) and found it in Section Color Key Processing, page 4630. There is a use about colorkey. The manual introduces the need to set the corresponding registers, but I searched the entire manual and found no registers related to colorkey. Where is the description of colorkey related registers?
IMX7DRM document I added to the attachment