[PATCH 1/9] i2c: designware: Fix system suspend
From: Jarkko Nikula <hidden>
Date: 2017-06-27 07:55:12
Also in:
linux-acpi, linux-i2c, linux-pm
From: Jarkko Nikula <hidden>
Date: 2017-06-27 07:55:12
Also in:
linux-acpi, linux-i2c, linux-pm
On 06/22/2017 02:16 PM, Jarkko Nikula wrote:
On 06/22/2017 01:49 PM, Mika Westerberg wrote:quoted
On Thu, Jun 22, 2017 at 01:31:51AM +0200, Rafael J. Wysocki wrote:quoted
On Wed, Jun 21, 2017 at 9:21 PM, Ulf Hansson [off-list ref] wrote:Thanks Ulf for taking care of this!Indeed!quoted
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