drm/i915: rip out intel_crtc->dpms_mode

Afaict this has been used for two things:
- To prevent the crtc enable code from being run twice. We have now
  intel_crtc->active to track this in a more precise way.
- To ensure the code copes correctly with the unknown hw state after
  boot and resume. Thanks to the hw state readout and sanitize code we
  have now a better way to handle this.

The only thing it still does is complicate our modeset state space.

Having outlived its usefullness, let it just die.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 0 insertions, 17 deletions

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 15e4a652dee6..ad03db4b7a5b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3470,18 +3470,10 @@ void intel_crtc_update_dpms(struct drm_crtc *crtc)
         struct intel_encoder *intel_encoder;
         int pipe = intel_crtc->pipe;
         bool enabled, enable = false;
-        int mode;
 
         for_each_encoder_on_crtc(dev, crtc, intel_encoder)
                 enable |= intel_encoder->connectors_active;
 
-        mode = enable ? DRM_MODE_DPMS_ON : DRM_MODE_DPMS_OFF;
-
-        if (intel_crtc->dpms_mode == mode)
-                return;
-
-        intel_crtc->dpms_mode = mode;
-
         if (enable)
                 dev_priv->display.crtc_enable(crtc);
         else
@@ -5037,11 +5029,6 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
                                               x, y, old_fb);
         drm_vblank_post_modeset(dev, pipe);
 
-        if (ret)
-                intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF;
-        else
-                intel_crtc->dpms_mode = DRM_MODE_DPMS_ON;
-
         return ret;
 }
 
@@ -7621,10 +7608,6 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc)
         struct drm_i915_private *dev_priv = dev->dev_private;
         u32 reg, val;
 
-        /* Clear the dpms state for compatibility with code still using that
-         * deprecated state variable. */
-        crtc->dpms_mode = -1;
-
         /* Clear any frame start delays used for debugging left by the BIOS */
         reg = PIPECONF(crtc->pipe);
         I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);