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Regression since commit 92bac83

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Hi,

I recently upgraded the kernel in a Dell Latitude D600 and found that the 
touchpad clicks failed. The problem was bisected to commit 
92bac83dd79e60e65c475222e41a992a70434beb ("Input: alps - non interleaved V2 
dualpoint has separate stick button bits"). The laptop has a combination 
touchpad and control stick. For this device, the following values are found:

priv->protoversion is 0x200 (ALPS_PROTO_V2)
priv->flags is 0x6 (ALPS_DUALPOINT | ALPS_PASS)

As a result, the new code added in this patch is executed, and left, right, and 
middle are updated. Once this code is introduced, a left click causes some event 
as it will wake a sleeping screen, but not select any windows or do anything useful.

Please advise on what information would be needed to help debug this problem.

Thanks,

Larry
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Regression since commit 92bac83 Larry Finger <Larry.Finger@lwfinger.net> - 2015-10-19 02:10 +0200
  Re: Regression since commit 92bac83 Hans de Goede <hdegoede@redhat.com> - 2015-10-19 10:10 +0200
    Re: Regression since commit 92bac83 Larry Finger <Larry.Finger@lwfinger.net> - 2015-10-19 18:00 +0200
      Re: Regression since commit 92bac83 Dmitry Torokhov <dmitry.torokhov@gmail.com> - 2015-10-19 19:00 +0200
        Re: Regression since commit 92bac83 Hans de Goede <hdegoede@redhat.com> - 2015-10-19 19:30 +0200
        Re: Regression since commit 92bac83 Pali Rohár <pali.rohar@gmail.com> - 2015-10-20 09:30 +0200
      Re: Regression since commit 92bac83 Hans de Goede <hdegoede@redhat.com> - 2015-10-20 13:40 +0200
        Re: Regression since commit 92bac83 Larry Finger <Larry.Finger@lwfinger.net> - 2015-10-20 19:40 +0200
        Re: Regression since commit 92bac83 Pali Rohár <pali.rohar@gmail.com> - 2015-10-21 10:20 +0200
          Re: Regression since commit 92bac83 Pali Rohár <pali.rohar@gmail.com> - 2015-10-21 10:40 +0200
          Re: Regression since commit 92bac83 Hans de Goede <hdegoede@redhat.com> - 2015-10-21 10:40 +0200

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