mb/google/brya: Use runtime detection for touchscreens
Now that power sequencing has been implemented, switch from using ACPI
"probed" flag to "detect" flag for all i2c touchscreens. This removes
non-present devices from the SSDT and relieves the OS of the burden of
probing.
TEST=build/boot Windows/linux on redrix?, verify touchscreen functional
in OS, dump ACPI and verify only i2c devices actually present on the
board have entries in the SSDT.
Change-Id: I0273014b2d164f67f503da7b968a09256bffb43c
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74929
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/brya/variants/nivviks/overridetree.cb b/src/mainboard/google/brya/variants/nivviks/overridetree.cb
index 8613ce1..13d67a5 100644
--- a/src/mainboard/google/brya/variants/nivviks/overridetree.cb
+++ b/src/mainboard/google/brya/variants/nivviks/overridetree.cb
@@ -293,7 +293,7 @@
register "generic.hid" = ""ELAN6915""
register "generic.desc" = ""ELAN Touchscreen""
register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_C7_IRQ)"
- register "generic.probed" = "1"
+ register "generic.detect" = "1"
register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C1)"
register "generic.reset_delay_ms" = "20"
register "generic.reset_off_delay_ms" = "2"