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samus: Add ACPI MADT interrupt override for GPIO IRQ 14

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This interrupt needs to be specified in the MADT before it can
be used by the kernel driver.

BUG=chrome-os-partner:22996
BRANCH=samus
TEST=emerge-samus chromeos-coreboot-samus

This was also tested on bolt by configuring the touchscreen to use
a shared GPIO interrupt:

localhost ~ $ grep atmel_mxt_ts /proc/interrupts
54:    24    188    93    124    LP-GPIO-demux    atmel_mxt_ts

Change-Id: Ic920a792a203cb06cd4529815680584a21532106
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/171902
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
Duncan Laurie 2013-10-04 11:54:54 -07:00 • committed by chrome-internal-fetch
commit a330fddb62
1 changed files with 4 additions and 0 deletions
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4
src/mainboard/google/samus/acpi_tables.c
View file

@ -115,6 +115,10 @@ unsigned long acpi_fill_madt(unsigned long current)
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);
/* GPIO Controller */
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 14, 14, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);
return current;
}