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mb/google/fatcat/var/moonstone: Add Elan touchpad support

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Add the Elan touchpad configuration for moonstone AVL.

BUG=b:442964901
TEST=build firwmare and check the touchpad can work well in ALOS.
     cat /sys/bus/i2c/devices/i2c-12/i2c-ELAN0000\:00/name
     i2cdetect -y -r 12 -> 0x15 = UU

Change-Id: Ie105906fb54383dbf91513f81ab933653162ad4e
Signed-off-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/89467
Reviewed-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-by: Pranava Y N <pranavayn@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Ren Kuo 2025-10-09 11:16:04 +08:00 • committed by Matt DeVillier
commit f5d1505c6b
1 changed files with 8 additions and 0 deletions
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8
src/mainboard/google/fatcat/variants/moonstone/overridetree.cb
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@ -312,6 +312,14 @@ chip soc/intel/pantherlake
end
end # I2C3
device ref i2c4 on
chip drivers/i2c/generic
register "hid" = ""ELAN0000""
register "desc" = ""ELAN Touchpad""
register "irq" = "ACPI_IRQ_WAKE_EDGE_LOW(GPP_E18_IRQ)"
register "wake" = "GPE0_DW2_18"
register "detect" = "1"
device i2c 15 on end
end
chip drivers/i2c/hid
register "generic.hid" = ""PIXA2305""
register "generic.desc" = ""PIXA Touchpad""