HP_INT_L(GPP_H0) is configured for GPIO IRQ instead of APIC IRQ since
it needs to trigger on both edges. With GPIO IRQ, it is necessary to
configure the trigger type in coreboot to match the ACPI
configuration. This is because:
1. ACPI configuration is used by intel-pinctrl driver in Linux kernel
to re-configure the trigger type for the pad in GPIO DW0 config
register. This is done when kernel driver probes and requests irq for
its device.
2. On resume from S3, the pad configuration gets reset and coreboot
sets the trigger type to LEVEL. However, kernel driver does not probe
again. This results in the trigger type being configured incorrectly.
This change updates the GPIO configuration for GPP_H0 to set the same
trigger type as advertised in ACPI for the kernel.
BUG=b:132672011
TEST=Verified that S3 works fine. Verified that interrupt on GPP_H0
works fine on boot as well as after suspend/resume.
Change-Id: Ieb44c7403a2f4911b4a8f422053dee8bcfb91d85
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34181
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Sathya Prakash M R <sathya.prakash.m.r@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
b8501c7c5f