[coreboot-gerrit] Change in coreboot[master]: soc/mediatek: dsi: fine tune the delta time for EoTp

[Jitao Shi (Code Review)]

Attention is currently required from: Chen-Tsung Hsieh, jitao shi, Shaoming Chen.
Jitao Shi has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/51432 )

Change subject: soc/mediatek: dsi: fine tune the delta time for EoTp
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Patch Set 5:

(1 comment)

File src/soc/mediatek/common/dsi.c:

https://review.coreboot.org/c/coreboot/+/51432/comment/64054281_d99fcb39 
PS2, Line 207: 10
> For Jacuzzi projects, yes you keep it as 12. […]

But for Kukui projects (NOT using anx7625, NOT enable MIPI_DSI_MODE_EOT_PACKET), 
Do we really expect to change it from 12 to 10?
A:  Kukui projects(NOT using anx7625) is enable EOTP, due to MIPI_DSI_MODE_EOT_PACKET actually means disable EoTp before this CL.
https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+...

On the other hand, I checked the driver in kernel.
You use 18 or 12 for the delta according to MIPI_DSI_MODE_VIDEO_BURST.
Without checking MIPI_DSI_MODE_EOT_PACKET.

A: There is patch for kernel to fix EoTp flag's delta data.
https://patchwork.kernel.org/project/linux-mediatek/patch/20210201033603.126...