mb/lenovo/t400: Switch to new hybrid graphics driver
Use new hybrid graphics driver to get device state.
Move remaining code to romstage.c.
Tested on Lenovo T500:
* Linux 4.11.4 on Fedora 25
* Integrated (using NGI)
* Discrete (using VGA OpROM)
* Switchable (using NGI and VGA OpROM), tested with DRI_PRIME
No regressions found.
Change-Id: Iad2eccaab19c71f11308853ba9326d8186e67c93
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/20793
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
6 files changed