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

[Won Chung (Code Review)]

Attention is currently required from: Tarun Tuli.

Won Chung has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/76906?usp=email )

Change subject: mb/google/brya/var/volmar: Add new GFX devices with custom _PLD
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mb/google/brya/var/volmar: 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-brya coreboot

Change-Id: Ie7982d1001c4a65322b4e6fdbd70b20c8eee6f0e
Signed-off-by: Won Chung 
---
M src/mainboard/google/brya/variants/volmar/overridetree.cb
1 file changed, 22 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/06/76906/1

diff --git a/src/mainboard/google/brya/variants/volmar/overridetree.cb b/src/mainboard/google/brya/variants/volmar/overridetree.cb
index 9f61eed..bdf3193 100644
--- a/src/mainboard/google/brya/variants/volmar/overridetree.cb
+++ b/src/mainboard/google/brya/variants/volmar/overridetree.cb
@@ -88,6 +88,28 @@
    	device ref tbt_pcie_rp2 off end
    	device ref tcss_dma0 off end
    	device ref tcss_dma1 off end
+		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_pld" = "true"
+				register "device[2].pld" = "ACPI_PLD_TYPE_C(LEFT, LEFT, ACPI_PLD_GROUP(1, 1))"
+				# TCP1 (DP-2) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP1
+				register "device[3].name" = ""DD03""
+				# TCP2 (DP-3) for port C1
+				register "device[4].name" = ""DD04""
+				register "device[4].use_pld" = "true"
+				register "device[4].pld" = "ACPI_PLD_TYPE_C(RIGHT, RIGHT, ACPI_PLD_GROUP(2, 1))"
+				# TCP3 (DP-4) is unused for any ports but still enumerated in the kernel, so GFX device is added for TCP3
+				register "device[5].name" = ""DD05""
+				device generic 0 on end
+			end
+		end # Integrated Graphics Device
    	device ref dtt on
    		chip drivers/intel/dptf
    			## sensor information