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mb/novacustom/mtl-h/var/igpu: Fix HDMI DDI lane index

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The DDI lane number in `enum ddi_ports` is 1-based, while the TCPx
display link numbers from the SoC are 0 based. Fix the off-by-one error
and set the HDMI DDI lane index to the correct value of 3.

Change-Id: I861e58150ebe8b97cf3e9be81c2bd5494eff600b
Signed-off-by: Michał Kopeć <michal.kopec@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/86751
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Michał Kopeć 2025-03-06 12:56:56 +01:00 • committed by Matt DeVillier
commit d0a28d4c97
1 changed files with 1 additions and 1 deletions
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2
src/mainboard/novacustom/mtl-h/variants/igpu/overridetree.cb
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@ -4,7 +4,7 @@ chip soc/intel/meteorlake
device ref igpu on
register "ddi_ports_config" = "{
[DDI_PORT_A] = DDI_ENABLE_HPD, /* eDP */
[DDI_PORT_2] = DDI_ENABLE_DDC | DDI_ENABLE_HPD, /* HDMI 2.1 */
[DDI_PORT_3] = DDI_ENABLE_DDC | DDI_ENABLE_HPD, /* HDMI 2.1 */
}"
chip drivers/gfx/generic
register "device_count" = "6"