[PATCH 1/9] i2c: designware: Fix system suspend

[Ulf Hansson]

On 27 June 2017 at 09:55, Jarkko Nikula <jarkko.nikula at linux.intel.com> wrote:
> On 06/22/2017 02:16 PM, Jarkko Nikula wrote:
>>
>> On 06/22/2017 01:49 PM, Mika Westerberg wrote:
>>>
>>> On Thu, Jun 22, 2017 at 01:31:51AM +0200, Rafael J. Wysocki wrote:
>>>>
>>>> On Wed, Jun 21, 2017 at 9:21 PM, Ulf Hansson <ulf.hansson at linaro.org>
>>>> wrote:
>>>
>>> Thanks Ulf for taking care of this!
>>>
>> Indeed!
>>
>>> I tested this series on Dell XPS 9350 which has touch panel connected to
>>> I2C and suspend/resume still works fine and I can see the controller
>>> going to D3 when the touch panel is idle.
>>>
>>> I can perform more comprehensive testing next week.
>>>
>> Unfortunately I'm seeing interrupt storm during suspend/resume on
>> platform using PM domain from drivers/acpi/acpi_lpss.c straight after
>> this patch. Maybe some timing related as I see it only if I have debug
>> messages on (i2c_designware_core.dyndbg=+p). But it occurs only after
>> this patch.
>>
> Sorry the noise, this was bogus. That platform is doing this interrupt storm
> randomly and it occurs also without the patch.


Okay, then it seems like we should go with $subject patch, although
allow me to update the changelog and post a new version.

Kind regards
Uffe