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authorSubrata Banik <subratabanik@google.com>2024-10-26 23:14:35 +0530
committerSubrata Banik <subratabanik@google.com>2024-10-28 06:52:57 +0000
commit33a89eb68f57307658c1eddb333308dbd4975abc (patch)
tree165edd223ff366e90596a2ee3881e726afc28fae /src/mainboard
parent9fcc99ea344de9f433f4c56d4cc9f812f6b15295 (diff)
mb/google/fatcat/var/fatcat: Enable iGPU display using FW_CONFIG
This change enables the integrated GPU (iGPU) display on the Fatcat board based on the FW_CONFIG setting (specifically the DISPLAY bit). By conditionally probing the display based on FW_CONFIG, the iGPU is dynamically enabled or disabled according to the SKU configuration. TEST=Verified display functionality on Fatcat with the iGPU: > cbi set 6 0x58A814 4 (DISPLAY_ABSENT): - lspci does not list the iGPU. - No display output, but the device boots to the OS (verified via console). > cbi set 6 0x5CA814 4 (DISPLAY_PRESENT): - lspci lists the iGPU. - Display output is functional, showing firmware and OS UI. Change-Id: I5762adf5ec8a86a00c16544670cb2f998055bd35 Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/84877 Reviewed-by: Jayvik Desai <jayvik@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Pranava Y N <pranavayn@google.com> Reviewed-by: Eric Lai <ericllai@google.com>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/fatcat/variants/fatcat/overridetree.cb4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb b/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
index a7107bfe92..bcaf92a9fe 100644
--- a/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
+++ b/src/mainboard/google/fatcat/variants/fatcat/overridetree.cb
@@ -136,6 +136,10 @@ chip soc/intel/pantherlake
}"
device domain 0 on
+ device ref igpu on
+ probe DISPLAY DISPLAY_PRESENT
+ end
+
device ref ipu on
chip drivers/intel/mipi_camera
register "acpi_uid" = "0x50000"