[coreboot-gerrit] [XS] Change in coreboot[master]: mb/google/rex/variants/ovis: Add display configuration

[Subrata Banik (Code Review)]

Subrata Banik has submitted this change. ( https://review.coreboot.org/c/coreboot/+/75579?usp=email )

Change subject: mb/google/rex/variants/ovis: Add display configuration
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mb/google/rex/variants/ovis: Add display configuration

Enable DDI on ports 1 to 4 for Type-C DisplayPort.

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

Change-Id: I40f967b12b11c10a1a9329bfb42ebec5a8d7738f
Signed-off-by: Jakub Czapiga 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75579
Reviewed-by: Subrata Banik 
Reviewed-by: Eric Lai 
Tested-by: build bot (Jenkins) 
---
M src/mainboard/google/rex/variants/ovis/overridetree.cb
1 file changed, 8 insertions(+), 0 deletions(-)

Approvals:
  Subrata Banik: Looks good to me, approved
  Eric Lai: Looks good to me, approved
  build bot (Jenkins): Verified

diff --git a/src/mainboard/google/rex/variants/ovis/overridetree.cb b/src/mainboard/google/rex/variants/ovis/overridetree.cb
index e15a7c4..1af0a0e 100644
--- a/src/mainboard/google/rex/variants/ovis/overridetree.cb
+++ b/src/mainboard/google/rex/variants/ovis/overridetree.cb
@@ -14,6 +14,14 @@
    register "tcss_ports[1]" = "TCSS_PORT_DEFAULT(OC0)"
    register "tcss_ports[2]" = "TCSS_PORT_DEFAULT(OC0)"

+	# 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_i2c_mode" = "{
    	[PchSerialIoIndexI2C0] = PchSerialIoDisabled,
    	[PchSerialIoIndexI2C1] = PchSerialIoDisabled,