diff mbox

[5/6] drm/i915: do display power state notification on crtc enable/disable

Message ID 707f0f66b7f4bf6836ee3b163e9049213bd88f6a.1377880296.git.jani.nikula@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jani Nikula Aug. 30, 2013, 4:40 p.m. UTC
The spec says to notify prior to power down and after power up. It is
unclear whether it makes a difference.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>

---

Paulo, still okay with the r-b?
---
 drivers/gpu/drm/i915/intel_display.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

Comments

Paulo Zanoni Aug. 30, 2013, 7:51 p.m. UTC | #1
2013/8/30 Jani Nikula <jani.nikula@intel.com>:
> The spec says to notify prior to power down and after power up. It is
> unclear whether it makes a difference.
>
> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
>
> ---
>
> Paulo, still okay with the r-b?

Yes :)

> ---
>  drivers/gpu/drm/i915/intel_display.c |    8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 9222e570..83d853f 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -3425,8 +3425,10 @@ static void haswell_crtc_enable(struct drm_crtc *crtc)
>         intel_update_fbc(dev);
>         mutex_unlock(&dev->struct_mutex);
>
> -       for_each_encoder_on_crtc(dev, crtc, encoder)
> +       for_each_encoder_on_crtc(dev, crtc, encoder) {
>                 encoder->enable(encoder);
> +               intel_opregion_notify_encoder(encoder, true);
> +       }
>
>         /*
>          * There seems to be a race in PCH platform hw (at least on some
> @@ -3540,8 +3542,10 @@ static void haswell_crtc_disable(struct drm_crtc *crtc)
>         if (!intel_crtc->active)
>                 return;
>
> -       for_each_encoder_on_crtc(dev, crtc, encoder)
> +       for_each_encoder_on_crtc(dev, crtc, encoder) {
> +               intel_opregion_notify_encoder(encoder, false);
>                 encoder->disable(encoder);
> +       }
>
>         intel_crtc_wait_for_pending_flips(crtc);
>         drm_vblank_off(dev, pipe);
> --
> 1.7.10.4
>
Daniel Vetter Sept. 2, 2013, 2:10 p.m. UTC | #2
On Fri, Aug 30, 2013 at 04:51:09PM -0300, Paulo Zanoni wrote:
> 2013/8/30 Jani Nikula <jani.nikula@intel.com>:
> > The spec says to notify prior to power down and after power up. It is
> > unclear whether it makes a difference.
> >
> > Signed-off-by: Jani Nikula <jani.nikula@intel.com>
> > Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
> >
> > ---
> >
> > Paulo, still okay with the r-b?
> 
> Yes :)

Ok I've merged the first 6 patches from this series to dinq.

Thanks, Daniel
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 9222e570..83d853f 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3425,8 +3425,10 @@  static void haswell_crtc_enable(struct drm_crtc *crtc)
 	intel_update_fbc(dev);
 	mutex_unlock(&dev->struct_mutex);
 
-	for_each_encoder_on_crtc(dev, crtc, encoder)
+	for_each_encoder_on_crtc(dev, crtc, encoder) {
 		encoder->enable(encoder);
+		intel_opregion_notify_encoder(encoder, true);
+	}
 
 	/*
 	 * There seems to be a race in PCH platform hw (at least on some
@@ -3540,8 +3542,10 @@  static void haswell_crtc_disable(struct drm_crtc *crtc)
 	if (!intel_crtc->active)
 		return;
 
-	for_each_encoder_on_crtc(dev, crtc, encoder)
+	for_each_encoder_on_crtc(dev, crtc, encoder) {
+		intel_opregion_notify_encoder(encoder, false);
 		encoder->disable(encoder);
+	}
 
 	intel_crtc_wait_for_pending_flips(crtc);
 	drm_vblank_off(dev, pipe);