commit | 029e7361727bb940f4c184b7e825a0491b50a632 | [log] [tgz] |
---|---|---|
author | Karthikeyan Ramasubramanian <kramasub@google.com> | Tue Nov 10 13:41:31 2020 -0700 |
committer | Tim Wawrzynczak <twawrzynczak@chromium.org> | Fri Nov 13 01:27:46 2020 +0000 |
tree | bd49bd471c2ec7cbbca6d2c24900c432760b2ff1 | |
parent | a879200843bb8d37658a8104d3583564de2b9dcc [diff] [blame] |
mb/google/volteer: 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: Ie7b82ea07ef97b2096d75229c445bd3a65cb3be0 Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/47416 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com>
diff --git a/src/mainboard/google/volteer/variants/elemi/overridetree.cb b/src/mainboard/google/volteer/variants/elemi/overridetree.cb index 5ea48ad..4afc795 100644 --- a/src/mainboard/google/volteer/variants/elemi/overridetree.cb +++ b/src/mainboard/google/volteer/variants/elemi/overridetree.cb
@@ -138,7 +138,7 @@ chip drivers/i2c/hid register "generic.hid" = ""GTCH7503"" register "generic.desc" = ""G2TOUCH Touchscreen"" - register "generic.irq" = "ACPI_IRQ_EDGE_LOW(GPP_E7_IRQ)" + register "generic.irq" = "ACPI_IRQ_LEVEL_LOW(GPP_E7_IRQ)" register "generic.probed" = "1" register "generic.reset_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_LOW(GPP_C10)"