This commit updates the port select bit definitions for the
TRANS_DDI_FUNC_CTL registers in the Intel GMA driver to accommodate
the changes introduced since TGL SoC.
Specifically, the following changes were made:
- Updated the DDI select bit definitions from 3-bits (bit 28-30) to
4-bits (bit 27-30).
- Introduces `INTEL_GMA_VERSION_2` config to accommodate the port and
pipe related differences between previous generation GMA register
(TRANS_DDI_FUNC_CTL) to the current generation GMA register.
This commit backports the change from the following upstream patch:
https://patchwork.freedesktop.org/patch/msgid/20190713010940.17711-3-lucas.demarchi@intel.com
BUG=b:299137940
TEST=Able to build and boot google/rex.
Change-Id: I815ffa90c2e235afd70baa7e3837e1f9af89b1b0
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78078
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
1858903e78