group.of.nepali.translators team mailing list archive

[Jesse Sung <1881124@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

I2C stops working after kernel upgrade:

[   13.812210] i2c_designware 80860F41:01: Unknown Synopsys component type: 0x00000000
[   13.855837] i2c_designware 80860F41:01: timeout in enabling adapter          
[   14.856276] i2c_designware 80860F41:01: controller timed out                                                                                                                                
[   14.856288] i2c_designware 80860F41:01: Unknown Synopsys component type: 0x00000000


This is caused by the commit

commit 5568c3f29fbd0ec0d9bb0f805bacc5755180c5cb
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()"

    BugLink: https://bugs.launchpad.net/bugs/1878232

    commit b5f88dd1d6efc472e35ca1b21a44e662c5422088 upstream.

    The specific power domain can't be used in a way provided by the commit
    01ac170ba29a, i.e. pointer to platform device is a subject to change during
    unbound / bind cycle.

    This reverts commit 01ac170ba29a9903ee590e1ef2d8e6b27b49a16c.

    Fixes: 3df2da968744 (Revert "ACPI / LPSS: introduce a 'proxy' device to power on LPSS for DMA")
    Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
    Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
    Signed-off-by: Ian May <ian.may@xxxxxxxxxxxxx>
    Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@xxxxxxxxxxxxx>

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Jesse Sung (wenchien)
         Status: Confirmed

** Affects: linux (Ubuntu Xenial)
     Importance: Undecided
     Assignee: Jesse Sung (wenchien)
         Status: Confirmed

** Also affects: linux (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: linux (Ubuntu Xenial)
       Status: New => Confirmed

** Changed in: linux (Ubuntu Xenial)
     Assignee: (unassigned) => Jesse Sung (wenchien)

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https://bugs.launchpad.net/bugs/1881124

Title:
  I2C bus on Dell Edge Gateway stops working after upgrading to
  Ubuntu-4.4.0-180.210

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Confirmed

Bug description:
  I2C stops working after kernel upgrade:

  [   13.812210] i2c_designware 80860F41:01: Unknown Synopsys component type: 0x00000000
  [   13.855837] i2c_designware 80860F41:01: timeout in enabling adapter          
  [   14.856276] i2c_designware 80860F41:01: controller timed out                                                                                                                                
  [   14.856288] i2c_designware 80860F41:01: Unknown Synopsys component type: 0x00000000

  
  This is caused by the commit

  commit 5568c3f29fbd0ec0d9bb0f805bacc5755180c5cb
  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()"

      BugLink: https://bugs.launchpad.net/bugs/1878232

      commit b5f88dd1d6efc472e35ca1b21a44e662c5422088 upstream.

      The specific power domain can't be used in a way provided by the commit
      01ac170ba29a, i.e. pointer to platform device is a subject to change during
      unbound / bind cycle.

      This reverts commit 01ac170ba29a9903ee590e1ef2d8e6b27b49a16c.

      Fixes: 3df2da968744 (Revert "ACPI / LPSS: introduce a 'proxy' device to power on LPSS for DMA")
      Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
      Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
      Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
      Signed-off-by: Ian May <ian.may@xxxxxxxxxxxxx>
      Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@xxxxxxxxxxxxx>

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