Karthik Ramasubramanian has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/34581 )
Change subject: mb/google/kohaku: Enable stylus pen device
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Patch Set 4:
(1 comment)
Patch Set 4:
(2 comments)
https://review.coreboot.org/c/coreboot/+/34581/4/src/mainboard/google/hatch/...
File src/mainboard/google/hatch/variants/kohaku/overridetree.cb:
https://review.coreboot.org/c/coreboot/+/34581/4/src/mainboard/google/hatch/...
PS4, Line 87: ACPI_GPIO_IRQ_LEVEL_LOW
ACPI_GPIO_IRQ_EDGE_BOTH makes reverse pen ejection event action. […]
ACPI_GPIO_IRQ_EDGE_BOTH makes reverse pen ejection event action.
Insert - Display pen pop-up window and cause wake from suspend
Eject - Hide pop-up window
That seems to be the opposite of the behavior we want. We should wake only when the pen is eject from the garage. Also the Stylus options should pop-up only when the pen is eject. ACPI_GPIO_INPUT_ACTIVE_LOW should meet the requirements.
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