On Wed, Feb 04, 2015 at 04:42:57PM +0900, Joonyoung Shim wrote: > Hi, > > On 02/04/2015 04:14 AM, Gustavo Padovan wrote: > > From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx> > > > > exynos_plane_dpms(DRM_MODE_DPMS_ON) calls the win_enable()'s callback > > from the underlying layer. However neither one of these layers implement > > win_enable() - FIMD, Mixer and VIDI. Thus the call to exynos_plane_dpms() > > is pointless. > > > > Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx> > > --- > > drivers/gpu/drm/exynos/exynos_drm_crtc.c | 2 -- > > 1 file changed, 2 deletions(-) > > > > diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c > > index b2a4b84..ad675fb 100644 > > --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c > > +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c > > @@ -65,8 +65,6 @@ static void exynos_drm_crtc_commit(struct drm_crtc *crtc) > > > > if (exynos_crtc->ops->commit) > > exynos_crtc->ops->commit(exynos_crtc); > > - > > - exynos_plane_dpms(crtc->primary, DRM_MODE_DPMS_ON); > > As i said, this needs to keep pair enabled flag of struct > exynos_drm_plane. The reason exynos needs that exynos_plane->enable is because it has its own per-plane dpms state. There's two problems with that: - It's highyl non-standard, the drm kms way is to just disable the plane and not have some additional knob on top. - The atomic helpers will not be able to handle this. They assume that there's only one dpms knob for the entire display pipeline, and per-plane enable/disable is handled by setting plane->state->crtc, which must be set iff plane->state->fb is set right now. I recommend we rip this all out if we can adjust existing userspace to stop using the "mode" property on planes and crtcs. And with that non-standard exynos plane mode thing gone we can indeed rip out exynos_plane_dpms and exynos_plane->enabled and just directly call manager->ops->win_enable/disble. And then rip out the win_enable since it's unused. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
