Hi Daniel, On 02/04/2015 11:16 PM, Daniel Vetter wrote: > 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. But this cleanup on current codes doesn't care now current operation normally. First let's cleanup non-standard exynos plane dpms state as you said. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
 |