[coreboot-gerrit] [S] Change in coreboot[main]: lenovo/x230: introduce FHD variant

[Ivan V (Code Review)]

Attention is currently required from: Alexander Couzens, Angel Pons, Charles Moyes, Felix Singer, Kilian Neuner, Nico Huber, Paul Menzel, Xue Yao, [e-mail].

Ivan V has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/28950?usp=email )

Change subject: lenovo/x230: introduce FHD variant
......................................................................

Patch Set 23:

(1 comment)

File src/mainboard/lenovo/x230/Kconfig.name:

https://review.coreboot.org/c/coreboot/+/28950/comment/51878b12_e92c3807 :
PS22, Line 11: 	bool "ThinkPad X230 eDP Mod (2K/FHD)"
> Please add a help text about tested mods and their configuration.

Reporting that eDP 4.0 mod from AliExpress with Sharp LQ125T1JW02 2560x1440 12.5" panel works perfectly with this patch. Brightness control on this mod is implemented by tapping into the power button and connecting a USB HID device to X230's USB 2.0 bus. Brightness can be controlled by power button press or by using this simple program that talks to this HID device: https://github.com/xy-tech/agan_brightness_X230_X330.

A link to the snapshot of eDP 4.0 mod page on AliExpress: https://archive.is/GfvCe
This mod seems to be an evolution of a.gain eDP mod previously sold by XYTech.

The latest version (as of 02/03/2024), eDP 5.1, doesn't seem to be any different from 4.0 apart from some board simplifications. Snapshot of the latest version is available here: https://archive.is/Bi991