commit a330fddb62cb6346ad66ceb5b5c32b66aecd81e2
author Duncan Laurie <dlaurie@chromium.org> Fri Oct 04 11:54:54 2013 -0700
committer chrome-internal-fetch <chrome-internal-fetch@google.com> Sat Oct 05 21:00:22 2013 +0000
tree afb9a7e67131c25d79280a5e0cae083426215e56
parent 63a0c80ce5a19410d0608fede5a9fe0ec1c8e5c1

samus: Add ACPI MADT interrupt override for GPIO IRQ 14

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>

src/mainboard/google/samus/acpi_tables.c

diff --git a/src/mainboard/google/samus/acpi_tables.c b/src/mainboard/google/samus/acpi_tables.c
index 4e05a86..db225e1 100644
--- a/src/mainboard/google/samus/acpi_tables.c
+++ b/src/mainboard/google/samus/acpi_tables.c
@@ -115,6 +115,10 @@
 	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;
 }