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[Phidias <phidias.chiang@xxxxxxxxxxxxx>]

Public bug reported:

[Impact]

As title, after upgrading to latest Vivid kernel the touchscreen failed.
After bisecting shows this revert cause the regression:

commit 95df597989f6f297db63dd8669656d10f5f48eb1
Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Fri Dec 4 23:49:18 2015 +0200

    Revert "ACPI / LPSS: allow to use specific PM domain during
->probe()"

[Fix]

The reverted patch has had a revised version upstreamed:

commit de16d55206c5ce82ad44590b01718fbe2323853c
Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date:   Fri Dec 4 23:49:19 2015 +0200

    ACPI / LPSS: allow to use specific PM domain during ->probe()

For Vivid it's a simple clean pick (plus a one line change for header
file), but in Xenial the touchscreen still works because the original
patch is not reverted. I'll firstly revert the patch than apply the new
fix.

[Test]

3.19.0-56 -> Failed
3.19.0-56 + patches -> OK (Including suspend)
4.4.0-15 -> OK
4.4.0-15 + revert patch -> To Be Tested
4.4.0-15 + patches -> To Be Tested

** Affects: hwe-next
     Importance: Undecided
         Status: New

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Phidias (phidias-chiang)
         Status: New


** Tags: originate-from-1490411 stella vivid xenial

** Tags added: originate-from-1490411 stella

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https://bugs.launchpad.net/bugs/1562778

Title:
  I2C touchscreen init failed on HP X360

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  New

Bug description:
  [Impact]

  As title, after upgrading to latest Vivid kernel the touchscreen
  failed. After bisecting shows this revert cause the regression:

  commit 95df597989f6f297db63dd8669656d10f5f48eb1
  Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
  Date: Fri Dec 4 23:49:18 2015 +0200

      Revert "ACPI / LPSS: allow to use specific PM domain during
  ->probe()"

  [Fix]

  The reverted patch has had a revised version upstreamed:

  commit de16d55206c5ce82ad44590b01718fbe2323853c
  Author: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
  Date:   Fri Dec 4 23:49:19 2015 +0200

      ACPI / LPSS: allow to use specific PM domain during ->probe()

  For Vivid it's a simple clean pick (plus a one line change for header
  file), but in Xenial the touchscreen still works because the original
  patch is not reverted. I'll firstly revert the patch than apply the
  new fix.

  [Test]

  3.19.0-56 -> Failed
  3.19.0-56 + patches -> OK (Including suspend)
  4.4.0-15 -> OK
  4.4.0-15 + revert patch -> To Be Tested
  4.4.0-15 + patches -> To Be Tested

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