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.shevche...@linux.intel.com>
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.shevche...@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Signed-off-by: Ian May <ian....@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.so...@canonical.com>
** 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
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