Messages in this thread |  | | Subject | Re: [PATCH 5/7] PM: i2c-designware-platdrv: Use DPM_FLAG_SMART_PREPARE | From | Jarkko Nikula <> | Date | Mon, 8 Jan 2018 16:31:49 +0200 |
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On 01/03/2018 02:35 AM, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > > Modify i2c-designware-platdrv to set DPM_FLAG_SMART_PREPARE for its > devices and return 0 from the system suspend ->prepare callback > if the device has an ACPI companion object in order to tell the PM > core and middle layers to avoid skipping system suspend/resume > callbacks for the device in that case (which may be problematic, > because the device may be accessed during suspend and resume of > other devices via I2C operation regions then). > > Also the pm_runtime_suspended() check in dw_i2c_plat_prepare() > is not necessary any more, because the core does it when setting > power.direct_complete for the device, so drop it. > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > --- > drivers/i2c/busses/i2c-designware-platdrv.c | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) > Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
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