diff options
| author | Karthikeyan Ramasubramanian <kramasub@google.com> | 2020-11-10 13:46:26 -0700 |
|---|---|---|
| committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-11-13 01:27:54 +0000 |
| commit | 86dc4b70724678d931fbce8a0286886539b0d94f (patch) | |
| tree | 52b5e75f12b5016c0b3aa276cb475ae80b08499c /src/mainboard/google/hatch/variants/nightfury | |
| parent | 029e7361727bb940f4c184b7e825a0491b50a632 (diff) | |
mb/google/hatch: Configure IRQs as level triggered for HID over I2C
As per HID over I2C Protocol Specification[1] Version 1.00 Section 7.4,
the interrupt line used by the device is required to be level triggered.
Hence, this change updates the configuration of the HID over I2C devices
to be level triggered.
References:
[1] http://download.microsoft.com/download/7/d/d/7dd44bb7-2a7a-4505-ac1c-7227d3d96d5b/hid-over-i2c-protocol-spec-v1-0.docx
BUG=b:172846122
TEST=./util/abuild/abuild
Change-Id: I320198d56131cf54e0f73227479f69968719b2a7
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47417
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src/mainboard/google/hatch/variants/nightfury')
| -rw-r--r-- | src/mainboard/google/hatch/variants/nightfury/overridetree.cb | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mainboard/google/hatch/variants/nightfury/overridetree.cb b/src/mainboard/google/hatch/variants/nightfury/overridetree.cb index d6be1fb6fc..ff61d80906 100644 --- a/src/mainboard/google/hatch/variants/nightfury/overridetree.cb +++ b/src/mainboard/google/hatch/variants/nightfury/overridetree.cb @@ -205,7 +205,7 @@ chip soc/intel/cannonlake chip drivers/i2c/hid register "generic.hid" = ""ELAN902C"" register "generic.desc" = ""ELAN Touchscreen"" - register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_D16_IRQ)" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_D16_IRQ)" register "generic.probed" = "1" register "generic.enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_C12)" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_D15)" |