tree 0de280694a0b5172f90d2f788c85ea3d46aa4599
parent 02bec2bd5cbef9ab5fab422b801768686e436b51
author Karthikeyan Ramasubramanian <kramasub@google.com> 1612890467 -0700
committer Tim Wawrzynczak <twawrzynczak@chromium.org> 1613688507 +0000

drivers/i2c/hid: Enforce level triggered IRQ mode

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.
This change ensures that the IRQ is appropriately configured.

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. Build and boot to OS in Dedede.

Change-Id: I3245a9de6e88cd83528823251083e62288192f0d
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50442
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>