Re: [PATCH 3/8] drm/ingenic: Use standard drm_atomic_helper_commit_tail

[Paul Cercueil]

Hi Christophe,

Le dim., août 8 2021 at 21:50:04 +0200, Christophe JAILLET 
<christophe.jaillet@xxxxxxxxxx> a écrit :
> Le 08/08/2021 à 15:45, Paul Cercueil a écrit :
> > By making the CRTC's .vblank_enable() function return an error when 
> > it
> > is known that the hardware won't deliver a VBLANK, we can drop the
> > ingenic_drm_atomic_helper_commit_tail() function and use the standard
> > drm_atomic_helper_commit_tail() function instead.
> >
> > Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
> > ---
> >   drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 28 
> > ++++-------------------
> >   1 file changed, 4 insertions(+), 24 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c 
> > b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> > index bc71ba44ccf4..3ed7c27a8dde 100644
> > --- a/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> > +++ b/drivers/gpu/drm/ingenic/ingenic-drm-drv.c
> > @@ -706,29 +706,6 @@ static int 
> > ingenic_drm_encoder_atomic_check(struct drm_encoder *encoder,
> >   	}
> >   }
> >   -static void ingenic_drm_atomic_helper_commit_tail(struct 
> > drm_atomic_state *old_state)
> > -{
> > -	/*
> > -	 * Just your regular drm_atomic_helper_commit_tail(), but only 
> > calls
> > -	 * drm_atomic_helper_wait_for_vblanks() if priv->no_vblank.
> > -	 */
> > -	struct drm_device *dev = old_state->dev;
> > -	struct ingenic_drm *priv = drm_device_get_priv(dev);
> > -
> > -	drm_atomic_helper_commit_modeset_disables(dev, old_state);
> > -
> > -	drm_atomic_helper_commit_planes(dev, old_state, 0);
> > -
> > -	drm_atomic_helper_commit_modeset_enables(dev, old_state);
> > -
> > -	drm_atomic_helper_commit_hw_done(old_state);
> > -
> > -	if (!priv->no_vblank)
> > -		drm_atomic_helper_wait_for_vblanks(dev, old_state);
> > -
> > -	drm_atomic_helper_cleanup_planes(dev, old_state);
> > -}
>
> Hi,
> if this function is removed, shouldn't:
>   static struct drm_mode_config_helper_funcs 
> ingenic_drm_mode_config_helpers = {
>   	.atomic_commit_tail = ingenic_drm_atomic_helper_commit_tail,
>   };
> be updated as well?
>
> I've not seen it in the serie.

It is there though :) At the bottom of this very patch.

> Just my 2v.
> CJ

Cheers,
-Paul