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

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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@xxxxxxxxxx> 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.

Have to dig more deeply next week.

--
Jarkko
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