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    SubjectRe: rmi4 defunct on T460p [was: [git pull] Input updates for v4.15-rc8]
    Hi

    On Tue, Feb 13, 2018 at 9:22 AM, Jiri Slaby <jslaby@suse.cz> wrote:
    > On 02/09/2018, 02:39 AM, Dmitry Torokhov wrote:
    >> On Thu, Feb 08, 2018 at 11:04:22AM +0100, Jiri Slaby wrote:
    >>> 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
    >>> ...
    >>>
    >>>> 王振杰 (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?
    >>
    >> Hmm, maybe the seuence between psmouse and rmi/smbus is not quite right
    >> on resume on that box. Can you ask the reporter to:
    >>
    >> echo 1 > /sys/power/pm_print_times
    >> suspend/resume
    >
    > He uploaded it here:
    > https://bugzilla.suse.com/attachment.cgi?id=759933
    >

    Same problem (with f27 and upstream kernel), is there anything else we
    can do to help? Should we open a bug on http://bugzilla.kernel.org ?

    thanks

    --
    Marc-André Lureau

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