[S] Change in coreboot[main]: mb/razer/blade_stealth_kbl: add panel_cfg

[Reagan (Code Review)]

Attention is currently required from: Paul Menzel, Reagan.

Hello Paul Menzel, build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/82458?usp=email

to look at the new patch set (#18).

The following approvals got outdated and were removed:
Verified+1 by build bot (Jenkins)

Change subject: mb/razer/blade_stealth_kbl: add panel_cfg
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mb/razer/blade_stealth_kbl: add panel_cfg

This commit defines the panel_cfg register for the Razer Blade Stealth
(Kaby Lake). This enables libgfxinit support. These values are derived
from the stock firmware. First, VBIOSes were extracted from the stock
firmware. Then, intelvbtool was used to extract the VBT from each of the
VBIOS tables. Finally, intel_vbt_decode from igt-gpu-tools was used to
extract the register values. Although there were multiple VBIOSes
present in the firmware, all VBIOSes across both firmwares (on version
1.50 for the H2U and 8.02 for the H3Q) had the same register values.

Change-Id: I4c8b26ffb7a70d08655986084a714206d9d0c96a
Signed-off-by: Reagan Bohan 
---
M src/mainboard/razer/blade_stealth_kbl/devicetree.cb
1 file changed, 12 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/58/82458/18