[S] Change in coreboot[master]: mb/google/rex/var/rex0: Add new GFX devices with custom _PLD

[Won Chung (Code Review)]

Attention is currently required from: Tarun Tuli, Subrata Banik, Kapil Porwal.

Won Chung has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74367 )

Change subject: mb/google/rex/var/rex0: Add new GFX devices with custom _PLD
......................................................................

mb/google/rex/var/rex0: Add new GFX devices with custom _PLD

Add new GFX devices for DDI and TCP with custom _PLD to describe the
corresponding ports.

BUG=b:277629750
TEST=emerge-rex coreboot

Change-Id: I193b95e8bd8ae538c4f25fbe772b174ef455d744
---
M src/mainboard/google/rex/variants/rex0/overridetree.cb
1 file changed, 37 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/74367/1

diff --git a/src/mainboard/google/rex/variants/rex0/overridetree.cb b/src/mainboard/google/rex/variants/rex0/overridetree.cb
index 3755227..615e407 100644
--- a/src/mainboard/google/rex/variants/rex0/overridetree.cb
+++ b/src/mainboard/google/rex/variants/rex0/overridetree.cb
@@ -131,6 +131,28 @@
    }"

device domain 0 on
+		device ref igpu on
+			chip drivers/gfx/generic
+				register "device_count" = "6"
+				# DDIA for eDP
+				register "device[0].name" = ""LCD""
+				# DDIB for HDMI
+				register "device[1].name" = ""DD01""
+				# TCP0 (DP-1) for port C0
+				register "device[2].name" = ""DD02""
+				register "device[2].use_custom_pld" = "true"
+				register "device[2].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))"
+				# TCP1 (DP-2) unused
+				register "device[3].name" = ""DD03""
+				# TCP2 (DP-3) for port C1
+				register "device[4].name" = ""DD04""
+				register "device[4].use_custom_pld" = "true"
+				register "device[4].pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(2, 1))"
+				# TCP3 (DP-4) unused
+				register "device[5].name" = ""DD05""
+				device generic 0 on end
+			end
+		end # Integrated Graphics Device
    	device ref dtt on
    		chip drivers/intel/dptf
    			device generic 0 alias dptf_policy on end