Messages in this thread | | | Date | Wed, 13 Jun 2018 13:34:12 +0200 (CEST) | From | Jiri Kosina <> | Subject | Re: [PATCH] hid: intel_ish-hid: ipc: register more pm callbacks to support hibernation |
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On Fri, 12 Feb 2016, Even Xu wrote:
> Current ISH driver only registers suspend/resume PM callbacks which don't > support hibernation (suspend to disk). Basically after hiberation, the ISH > can't resume properly and user may not see sensor events > (for example: screen rotation may not work). > > User will not see a crash or panic or anything except the following message > in log: > hid-sensor-hub 001F:8086:22D8.0001: timeout waiting for response from ISHTP device > > So this patch adds support for S4/hiberbation to ISH by using the > SIMPLE_DEV_PM_OPS() MACRO instead of struct dev_pm_ops directly. The suspend > and resume functions will now be used for both suspend to RAM and hibernation. > > If power management is disabled, SIMPLE_DEV_PM_OPS will do nothing, the suspend > and resume related functions won't be used, so mark them as __maybe_unused to > clarify that this is the intended behavior, and remove #ifdefs for power > management. > > Cc: stable@vger.kernel.org > Signed-off-by: Even Xu <even.xu@intel.com> > Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Applied to hid.git#for-4.18/upstream-fixes. Thanks,
-- Jiri Kosina SUSE Labs
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