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

[Jarkko Nikula]

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.

-- 
Jarkko