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mb/google/zork/ezkinil: Fix ELAN touchscreen ACPI node 

a. USI_REPORT_EN is no longer set to high in coreboot. Instead
GPIO_144 is exposed as stop_gpio in ACPI to allow OS to control this
pad as required.
b. Add Delay after stop_gpio Low - 300ms

BUG=b:162263398

Signed-off-by: Lucas Chen <lucas.chen@quanta.corp-partner.google.com>
Change-Id: I3d4dcb6e5cae5d9515abfd415315ec4114ca80b4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44107
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Lucas Chen 2020-08-03 15:57:19 +08:00 committed by Aaron Durbin
parent 5ba154a597
commit b7184e28ba
1 changed files with 3 additions and 0 deletions
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3
src/mainboard/google/zork/variants/ezkinil/overridetree.cb
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@ -88,7 +88,10 @@ chip soc/amd/picasso
register "generic.irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_12)"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPIO_140)"
register "generic.reset_delay_ms" = "20"
register "generic.stop_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPIO_144)"
register "generic.stop_delay_ms" = "300"
register "generic.has_power_resource" = "1"
register "generic.disable_gpio_export_in_crs" = "1"
register "hid_desc_reg_offset" = "0x01"
device i2c 10 on end
end