imx6 solo display framebuffer count

[zhencongtee]

Hi.

May i know how many display BG and overlay framebuffer is available on the imx6 SOLO?

In below page:

https://support.bluetechnix.at/wiki/Linux_Software_User_Manual_%28i.MX6%29

section 8.13 Display Interface,

It stated that imx6 SOLO only has 2 BG framebuffer and 1 overlay framebuffer.

Just want to confirm whether this is true? I did not see any description on this in the reference manual.

Thank you.

Regards,

Zhen Cong Tee

[igorpadykov]

Hi Zhen

yes this is true, i.MX6S has only one IPU,

some details are provided by IPU expert below

i.MX6: fb2 Framebuffer issue

Best regards

chip

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[zhencongtee]

Hi Chip,

Yes. I understand that i.mx6S only has one IPU.

But this one IPU has how many BG framebuffer and overlay framebuffer? I dun see this information in the page you attached.

Thank you.

Regards,

Zhen Cong Tee

[igorpadykov]

Hi Zhen,

expert answer:

"the hardware IPU by default doesn't support it. It can only support 2-layer(BG, FG)."

Best regards

chip

[zhencongtee]

Hi Chip,

If this is the case, does it means that for dual display (as supported by the IPU),

i have 2x2layer(BG,FG) framebuffer?

Regards,

zhen Cong Tee

[igorpadykov]

Hi Zhen,

I think yes.

Best regards

chip

[zhencongtee]

Hi Chip,

Is there any document that i can refer to so that i can documented it down and present to my management?

Thank you.

Regards,

Zhen Cong tee

[igorpadykov]

Hi Zhen,

probably you can look through FTF2014 presentations

http://www.freescale.com/webapp/sps/site/overview.jsp?code=DWFREESCALE_OLL

Best regards

chip