Re: [PATCH 3/6] drm/i915/pm: Simplify pm hook documentation

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On Thu, Sep 26, 2024 at 06:38:56PM +0300, Ville Syrjälä wrote:
> On Thu, Sep 26, 2024 at 10:45:44AM -0400, Rodrigo Vivi wrote:
> > On Wed, Sep 25, 2024 at 05:45:23PM +0300, Ville Syrjala wrote:
> > > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > > 
> > > Stop spelling out each variant of the hook ("" vs. "_late" vs.
> > > "_early") and just say eg. "@thaw*" to indicate all of them.
> > > Avoids having to update the docs whenever we start/stop using
> > > one of the variants.
> > 
> > That or simply remove them all and refer only to the pm documentation?
> > "Entering Hibernation" of Documentation/driver-api/pm/devices.rst
> 
> That's not very succinct. Having a better quick overview
> of the whole situation might still be nice. 

Fair enough.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>

> 
> > 
> > > 
> > > Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> > > Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
> > > Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> > > Cc: linux-pci@xxxxxxxxxxxxxxx
> > > Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> > > Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> > > ---
> > >  drivers/gpu/drm/i915/i915_driver.c | 24 ++++++++++++------------
> > >  1 file changed, 12 insertions(+), 12 deletions(-)
> > > 
> > > diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> > > index 9d557ff8adf5..1e5abf72dfc4 100644
> > > --- a/drivers/gpu/drm/i915/i915_driver.c
> > > +++ b/drivers/gpu/drm/i915/i915_driver.c
> > > @@ -1644,18 +1644,18 @@ const struct dev_pm_ops i915_pm_ops = {
> > >  
> > >  	/*
> > >  	 * S4 event handlers
> > > -	 * @freeze, @freeze_late    : called (1) before creating the
> > > -	 *                            hibernation image [PMSG_FREEZE] and
> > > -	 *                            (2) after rebooting, before restoring
> > > -	 *                            the image [PMSG_QUIESCE]
> > > -	 * @thaw, @thaw_early       : called (1) after creating the hibernation
> > > -	 *                            image, before writing it [PMSG_THAW]
> > > -	 *                            and (2) after failing to create or
> > > -	 *                            restore the image [PMSG_RECOVER]
> > > -	 * @poweroff, @poweroff_late: called after writing the hibernation
> > > -	 *                            image, before rebooting [PMSG_HIBERNATE]
> > > -	 * @restore, @restore_early : called after rebooting and restoring the
> > > -	 *                            hibernation image [PMSG_RESTORE]
> > > +	 * @freeze*   : called (1) before creating the
> > > +	 *              hibernation image [PMSG_FREEZE] and
> > > +	 *              (2) after rebooting, before restoring
> > > +	 *              the image [PMSG_QUIESCE]
> > > +	 * @thaw*     : called (1) after creating the hibernation
> > > +	 *              image, before writing it [PMSG_THAW]
> > > +	 *              and (2) after failing to create or
> > > +	 *              restore the image [PMSG_RECOVER]
> > > +	 * @poweroff* : called after writing the hibernation
> > > +	 *              image, before rebooting [PMSG_HIBERNATE]
> > > +	 * @restore*  : called after rebooting and restoring the
> > > +	 *              hibernation image [PMSG_RESTORE]
> > >  	 */
> > >  	.freeze = i915_pm_freeze,
> > >  	.freeze_late = i915_pm_freeze_late,
> > > -- 
> > > 2.44.2
> > > 
> 
> -- 
> Ville Syrjälä
> Intel




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