[Intel-gfx] [PATCH v2 1/2] drm: Wrap the check for atomic_commit implementation

[Daniel Vetter]

On Thu, Dec 22, 2016 at 10:36:01AM +0200, Ander Conselvan De Oliveira wrote:
> On Wed, 2016-12-21 at 12:12 -0800, Dhinakaran Pandiyan wrote:
> > This check is useful for drivers that do not have DRIVER_ATOMIC set but
> > have atomic modesetting internally implemented. Wrap the check into a
> > function since this is used in many places and as a bonus, the function
> > name helps to document what the check is for.
> > 
> > v2:
> > Change return type to bool (Ville)
> > Move the function drm_atomic.h (Daniel)
> > 
> > Suggested-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> > Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> > Cc: Ben Skeggs <bskeggs at redhat.com>
> > Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
> > ---
> >  drivers/gpu/drm/drm_fb_helper.c             |  6 +++---
> >  drivers/gpu/drm/nouveau/nouveau_connector.c |  5 +++--
> >  drivers/gpu/drm/nouveau/nouveau_display.c   |  6 +++---
> >  drivers/gpu/drm/nouveau/nouveau_fbcon.c     |  3 ++-
> >  include/drm/drm_atomic.h                    | 11 +++++++++++
> >  5 files changed, 22 insertions(+), 9 deletions(-)
> > 
> 
> ...
> 
> > diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
> > index 8cc7ca2..43db162 100644
> > --- a/include/drm/drm_atomic.h
> > +++ b/include/drm/drm_atomic.h
> > @@ -419,5 +419,16 @@ drm_atomic_crtc_needs_modeset(const struct drm_crtc_state
> > *state)
> >  	       state->connectors_changed;
> >  }
> >  
> > +/* drm_drv_uses_atomic_modeset - check if the driver implements
> 
> Shouldn't this be
> 
> /**
>  * drm_drv_uses_atomic_modeset - ...
> 
> so it is included in the generated documentation?

Yup. I'm blind this week it seems. DK, please run

$ make DOCBOOKS="" htmldocs

and make sure your new documentation does get rendered correctly and shows
up in the output.
-Daniel

> 
> Ander
> 
> 
> > + * atomic_commit()
> > + * @dev: DRM device
> > + *
> > + * This check is useful if drivers do not have DRIVER_ATOMIC set but
> > + * have atomic modesetting internally implemented.
> > + */
> > +static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev)
> > +{
> > +	return dev->mode_config.funcs->atomic_commit ? true : false;
> > +}
> >  
> >  #endif /* DRM_ATOMIC_H_ */

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch