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mb/google/guybrush: Switch touchpad IRQ to level triggering

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Use ACPI_GPIO_IRQ_LEVEL_LOW instead of EDGE_LOW for Elan touchpads.
Required for Windows driver compatibility.

TEST=build/boot Win11/Linux on dewatt; verify touchpad functional.

Change-Id: I712134860eee456c2c103c2ca8543020c58027f2
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91792
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Matt DeVillier 2026-03-03 12:12:42 -06:00
commit 62abc7aca0
2 changed files with 2 additions and 2 deletions
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2
src/mainboard/google/guybrush/variants/guybrush/overridetree.cb
View file

@ -81,7 +81,7 @@ chip soc/amd/cezanne
chip drivers/i2c/generic
register "hid" = ""ELAN0000""
register "desc" = ""ELAN Touchpad""
register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_9)"
register "irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPIO_9)"
register "wake" = "GEVENT_22"
register "detect" = "1"
device i2c 15 on end

2
src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
View file

@ -289,7 +289,7 @@ chip soc/amd/cezanne
chip drivers/i2c/generic
register "hid" = ""ELAN0000""
register "desc" = ""ELAN Touchpad""
register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_9)"
register "irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPIO_9)"
register "wake" = "GEVENT_22"
register "detect" = "1"
device i2c 15 on end