[S] Change in coreboot[main]: mb/google/fatcat/var/fatcat: Add new GFX devices with custom _PLD

[Subrata Banik (Code Review)]

Subrata Banik has submitted this change. ( https://review.coreboot.org/c/coreboot/+/85953?usp=email )

Change subject: mb/google/fatcat/var/fatcat: Add new GFX devices with custom _PLD
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mb/google/fatcat/var/fatcat: Add new GFX devices with custom _PLD

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

TEST=Able to verify display using all the display end-point device.

Change-Id: I32f74411aa80279d63c3b12087ffc47b33fcc039
Signed-off-by: Subrata Banik 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85953
Reviewed-by: Eric Lai 
Tested-by: build bot (Jenkins) 
---
M src/mainboard/google/fatcat/Kconfig
M src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
2 files changed, 23 insertions(+), 0 deletions(-)

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

diff --git a/src/mainboard/google/fatcat/Kconfig b/src/mainboard/google/fatcat/Kconfig
index 37ba330..bb1f259 100644
--- a/src/mainboard/google/fatcat/Kconfig
+++ b/src/mainboard/google/fatcat/Kconfig
@@ -3,6 +3,7 @@
 config BOARD_GOOGLE_FATCAT_COMMON
    def_bool n
    select BOARD_ROMSIZE_KB_32768
+	select DRIVERS_GFX_GENERIC
    select DRIVERS_I2C_GENERIC
    select DRIVERS_I2C_HID
    select DRIVERS_INTEL_DPTF
diff --git a/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb b/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
index 95a142f..19fbff8 100644
--- a/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
+++ b/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
@@ -146,6 +146,28 @@
    device domain 0 on
    	device ref igpu on
    		probe DISPLAY DISPLAY_PRESENT
+			chip drivers/gfx/generic
+				register "device_count" = "5"
+				# DDIA for eDP
+				register "device[0].name" = ""LCD0""
+				register "device[0].type" = "panel"
+				# DDIB for HDMI
+				# If HDMI is not enumerated in the kernel, then no GFX device should be added for DDIB
+				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) for port C1
+				register "device[3].name" = ""DD03""
+				register "device[3].use_pld" = "true"
+				register "device[3].pld" = "ACPI_PLD_TYPE_C(LEFT, RIGHT, ACPI_PLD_GROUP(2, 1))"
+				# TCP2 (DP-3) for port C2
+				register "device[4].name" = ""DD04""
+				register "device[4].use_pld" = "true"
+				register "device[4].pld" = "ACPI_PLD_TYPE_C(RIGHT, LEFT, ACPI_PLD_GROUP(3, 1))"
+				device generic 0 on end
+			end
    	end

device ref dtt on