topic kernel logo in i.MX Processors

kernel logo

rainho — Mon, 15 Apr 2024 07:15:04 GMT

Hello, now I have a question about kernel logo display!
I used sii9022 on the imx6u platform to successfully convert RGB signals to HDMI signals, and my application can display normally. But I need to display the Penguin logo during the kernel startup phase. It cannot display the startup logo. However, I changed the screen and no longer use rgb to hdmi. I can directly use the rgb888 interface screen to display the logo normally. How can I change this? The driver I use is mxsfb_sii902x.c. Finally, my kernel version is 4.1.15.
I would be very grateful if you get a reply!

Re: kernel logo

Bio_TICFSL — Mon, 15 Apr 2024 14:53:54 GMT

Hello,

In This case you have to modify the driver that passed the logo to hdmi since the conversion enter after this logo is printed, please check it.

regards

Re: kernel logo

rainho — Mon, 15 Apr 2024 15:06:06 GMT

Hello, thank you for your reply!

I probably guessed that it should be the driver loading order. I tried to load the logo driver on the sii9022 and mxsfb driver, which is implemented in kconfig. But the problem still exists. Do you have any solutions or ideas?

Wishing you all the best!