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

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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 <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/85953
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Subrata Banik 2025-01-13 17:05:55 +05:30
commit 26e9ade8f9
2 changed files with 23 additions and 0 deletions
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1
src/mainboard/google/fatcat/Kconfig
View file

@ -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

22
src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
View file

@ -146,6 +146,28 @@ chip soc/intel/pantherlake
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