Re: [git pull] Input updates for v4.15-rc8

From: Jiri Slaby
Date: Thu Feb 08 2018 - 05:04:30 EST


On 01/19/2018, 06:42 PM, Dmitry Torokhov wrote:
> Please pull from:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git for-linus
>
> to receive updates for the input subsystem. You will get:
>
...
> - touchpad on Lenovo T640p is switched over to SMbus/RMI
...

> çææ (1):
> Input: synaptics - Lenovo Thinkpad T460p devices should use RMI

Hi,

one of openSUSE users with T460p reports that the touchpad is defunct
after resume in 4.15. psmouse.synaptics_intertouch=0 works around the
problem.

The problem is:
kernel: rmi4_smbus 8-002c: failed to get SMBus version number!
kernel: rmi4_physical rmi4-00: rmi_driver_reset_handler: Failed to read
current IRQ mask.
kernel: rmi4_f01 rmi4-00.fn01: Failed to restore normal operation: -16.
kernel: rmi4_f01 rmi4-00.fn01: Resume failed with code -16.
kernel: rmi4_physical rmi4-00: Failed to suspend functions: -16
kernel: rmi4_smbus 8-002c: Failed to resume device: -16
kernel: rmi4_f03 rmi4-00.fn03: rmi_f03_pt_write: Failed to write to F03
TX register (-16).

The downstream bug is at:
https://bugzilla.suse.com/show_bug.cgi?id=1079862

Any ideas?

thanks,
--
js
suse labs