HID: Add quirk for incorrect input length on Lenovo Y720
authorPavel Balan <admin@kryma.net>
Wed, 27 Nov 2019 03:23:29 +0000 (03:23 +0000)
committerJiri Kosina <jkosina@suse.cz>
Fri, 13 Dec 2019 12:03:48 +0000 (13:03 +0100)
commitfd0913768701612fc2b8ab9c8a5c019133e8d978
treea15c28ee7a30b7575429ac01fef16ade1124cc54
parentc07a0254c89e4bb69ca781cd488baa5b628e2754
HID: Add quirk for incorrect input length on Lenovo Y720

Apply it to the Lenovo Y720 gaming laptop I2C peripheral then.

This fixes dmesg being flooded with errors visible on un-suspend
in Linux Mint 19 Cinnamon.

Example of error log:

<...>
[    4.326588] i2c_hid i2c-ITE33D1:00: i2c_hid_get_input: incomplete report (2/4)
[    4.326845] i2c_hid i2c-ITE33D1:00: i2c_hid_get_input: incomplete report (2/4)
[    4.327095] i2c_hid i2c-ITE33D1:00: i2c_hid_get_input: incomplete report (2/4)
[    4.327341] i2c_hid i2c-ITE33D1:00: i2c_hid_get_input: incomplete report (2/4)
[    4.327609] i2c_hid i2c-ITE33D1:00: i2c_hid_get_input: incomplete report (2/4)
<...>

Example of fixed log (debug on)

<...>
[ 3731.333183] i2c_hid i2c-ITE33D1:00: input: 02 00
[ 3731.333581] i2c_hid i2c-ITE33D1:00: input: 02 00
[ 3731.333842] i2c_hid i2c-ITE33D1:00: input: 02 00
[ 3731.334107] i2c_hid i2c-ITE33D1:00: input: 02 00
[ 3731.334367] i2c_hid i2c-ITE33D1:00: input: 02 00
<...>

[jkosina@suse.cz: rebase onto more recent codebase]
Signed-off-by: Pavel Balan <admin@kryma.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/hid-ids.h
drivers/hid/i2c-hid/i2c-hid-core.c