[S] Change in coreboot[master]: mb/google/rex/variants/ovis: Add display configurarion

[Jakub Czapiga (Code Review)]

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

Jakub Czapiga has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/75579?usp=email )

Change subject: mb/google/rex/variants/ovis: Add display configurarion
......................................................................

mb/google/rex/variants/ovis: Add display configurarion

BUG=b:274421383
TEST=util/abuild/abuild -p none -t google/rex -x -a -b ovis

Change-Id: I40f967b12b11c10a1a9329bfb42ebec5a8d7738f
Signed-off-by: Jakub Czapiga 
---
M src/mainboard/google/rex/variants/ovis/overridetree.cb
1 file changed, 12 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/79/75579/1

diff --git a/src/mainboard/google/rex/variants/ovis/overridetree.cb b/src/mainboard/google/rex/variants/ovis/overridetree.cb
index 7a42029..02129e6 100644
--- a/src/mainboard/google/rex/variants/ovis/overridetree.cb
+++ b/src/mainboard/google/rex/variants/ovis/overridetree.cb
@@ -14,6 +14,17 @@
    register "tcss_ports[1]" = "TCSS_PORT_DEFAULT(OC0)"
    register "tcss_ports[2]" = "TCSS_PORT_DEFAULT(OC0)"

+	register "ddi_port_A_config" = "0"
+	register "ddi_port_B_config" = "0"
+
+	# Enable Display Port Configuration
+	register "ddi_ports_config" = "{
+		[DDI_PORT_1] = DDI_ENABLE_HPD,
+		[DDI_PORT_2] = DDI_ENABLE_HPD,
+		[DDI_PORT_3] = DDI_ENABLE_HPD,
+		[DDI_PORT_4] = DDI_ENABLE_HPD,
+	}"
+
    register "serial_io_gspi_mode" = "{
    	[PchSerialIoIndexGSPI0] = PchSerialIoPci,
    	[PchSerialIoIndexGSPI1] = PchSerialIoDisabled,
@@ -169,6 +180,7 @@
    			end
    		end
    	end
+		device ref ipu on end
    	device ref i2c4 on
    		chip drivers/i2c/tpm
    			register "hid" = ""GOOG0005""