Now that the dpll updates are (mostly) atomic, the .off() code is a noop,
and intel_crtc_disable does mostly the same as intel_modeset_update_state.

Move all logic for connectors_active and setting dpms to that function.

Changes since v1:
- Move drm_atomic_helper_swap_state up.
Changes since v2:
- Split out intel_put_shared_dpll removal.
Changes since v3:
- Rebase on top of latest drm-intel.

Signed-off-by: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.ro...@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h      |  1 -
 drivers/gpu/drm/i915/intel_display.c | 93 +++++++++---------------------------
 2 files changed, 23 insertions(+), 71 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 60aa9626f91f..862bb9d4b08d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -631,7 +631,6 @@ struct drm_i915_display_funcs {
                                  struct intel_crtc_state *crtc_state);
        void (*crtc_enable)(struct drm_crtc *crtc);
        void (*crtc_disable)(struct drm_crtc *crtc);
-       void (*off)(struct drm_crtc *crtc);
        void (*audio_codec_enable)(struct drm_connector *connector,
                                   struct intel_encoder *encoder,
                                   struct drm_display_mode *mode);
diff --git a/drivers/gpu/drm/i915/intel_display.c 
b/drivers/gpu/drm/i915/intel_display.c
index a5de28defcfd..547ea588fa27 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6224,10 +6224,6 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc)
        mutex_unlock(&dev->struct_mutex);
 }
 
-static void i9xx_crtc_off(struct drm_crtc *crtc)
-{
-}
-
 /* Master function to enable/disable CRTC and corresponding power wells */
 void intel_crtc_control(struct drm_crtc *crtc, bool enable)
 {
@@ -6277,34 +6273,6 @@ void intel_crtc_update_dpms(struct drm_crtc *crtc)
        crtc->state->active = enable;
 }
 
-static void intel_crtc_disable(struct drm_crtc *crtc)
-{
-       struct drm_device *dev = crtc->dev;
-       struct drm_connector *connector;
-       struct drm_i915_private *dev_priv = dev->dev_private;
-
-       /* crtc should still be enabled when we disable it. */
-       WARN_ON(!crtc->state->enable);
-
-       intel_crtc_disable_planes(crtc);
-       dev_priv->display.crtc_disable(crtc);
-       dev_priv->display.off(crtc);
-
-       drm_plane_helper_disable(crtc->primary);
-
-       /* Update computed state. */
-       list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-               if (!connector->encoder || !connector->encoder->crtc)
-                       continue;
-
-               if (connector->encoder->crtc != crtc)
-                       continue;
-
-               connector->dpms = DRM_MODE_DPMS_OFF;
-               to_intel_encoder(connector->encoder)->connectors_active = false;
-       }
-}
-
 void intel_encoder_destroy(struct drm_encoder *encoder)
 {
        struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
@@ -12020,26 +11988,22 @@ intel_modeset_update_state(struct drm_atomic_state 
*state)
        struct drm_crtc *crtc;
        struct drm_crtc_state *crtc_state;
        struct drm_connector *connector;
-       int i;
 
        intel_shared_dpll_commit(dev_priv);
+       drm_atomic_helper_swap_state(state->dev, state);
 
        for_each_intel_encoder(dev, intel_encoder) {
                if (!intel_encoder->base.crtc)
                        continue;
 
-               for_each_crtc_in_state(state, crtc, crtc_state, i) {
-                       if (crtc != intel_encoder->base.crtc)
-                               continue;
-
-                       if (crtc_state->enable && needs_modeset(crtc_state))
-                               intel_encoder->connectors_active = false;
+               crtc = intel_encoder->base.crtc;
+               crtc_state = drm_atomic_get_existing_crtc_state(state, crtc);
+               if (!crtc_state || !needs_modeset(crtc->state))
+                       continue;
 
-                       break;
-               }
+               intel_encoder->connectors_active = false;
        }
 
-       drm_atomic_helper_swap_state(state->dev, state);
        intel_modeset_fixup_state(state);
 
        /* Double check state. */
@@ -12051,27 +12015,23 @@ intel_modeset_update_state(struct drm_atomic_state 
*state)
                if (!connector->encoder || !connector->encoder->crtc)
                        continue;
 
-               for_each_crtc_in_state(state, crtc, crtc_state, i) {
-                       if (crtc != connector->encoder->crtc)
-                               continue;
-
-                       if (crtc->state->enable && needs_modeset(crtc->state)) {
-                               struct drm_property *dpms_property =
-                                       dev->mode_config.dpms_property;
+               crtc = connector->encoder->crtc;
+               crtc_state = drm_atomic_get_existing_crtc_state(state, crtc);
+               if (!crtc_state || !needs_modeset(crtc->state))
+                       continue;
 
-                               connector->dpms = DRM_MODE_DPMS_ON;
-                               drm_object_property_set_value(&connector->base,
-                                                                dpms_property,
-                                                                
DRM_MODE_DPMS_ON);
+               if (crtc->state->enable) {
+                       struct drm_property *dpms_property =
+                               dev->mode_config.dpms_property;
 
-                               intel_encoder = 
to_intel_encoder(connector->encoder);
-                               intel_encoder->connectors_active = true;
-                       }
+                       connector->dpms = DRM_MODE_DPMS_ON;
+                       drm_object_property_set_value(&connector->base, 
dpms_property, DRM_MODE_DPMS_ON);
 
-                       break;
-               }
+                       intel_encoder = to_intel_encoder(connector->encoder);
+                       intel_encoder->connectors_active = true;
+               } else
+                       connector->dpms = DRM_MODE_DPMS_OFF;
        }
-
 }
 
 static bool intel_fuzzy_clock_check(int clock1, int clock2)
@@ -12745,12 +12705,10 @@ static int __intel_set_mode(struct drm_crtc 
*modeset_crtc,
                if (!needs_modeset(crtc_state))
                        continue;
 
-               if (!crtc_state->enable) {
-                       intel_crtc_disable(crtc);
-               } else if (crtc->state->enable) {
-                       intel_crtc_disable_planes(crtc);
-                       dev_priv->display.crtc_disable(crtc);
-               }
+               intel_crtc_disable_planes(crtc);
+               dev_priv->display.crtc_disable(crtc);
+               if (!crtc_state->enable)
+                       drm_plane_helper_disable(crtc->primary);
        }
 
        /* crtc->mode is already used by the ->mode_set callbacks, hence we need
@@ -14484,7 +14442,6 @@ static void intel_init_display(struct drm_device *dev)
                        haswell_crtc_compute_clock;
                dev_priv->display.crtc_enable = haswell_crtc_enable;
                dev_priv->display.crtc_disable = haswell_crtc_disable;
-               dev_priv->display.off = i9xx_crtc_off;
                dev_priv->display.update_primary_plane =
                        skylake_update_primary_plane;
        } else if (HAS_DDI(dev)) {
@@ -14495,7 +14452,6 @@ static void intel_init_display(struct drm_device *dev)
                        haswell_crtc_compute_clock;
                dev_priv->display.crtc_enable = haswell_crtc_enable;
                dev_priv->display.crtc_disable = haswell_crtc_disable;
-               dev_priv->display.off = i9xx_crtc_off;
                dev_priv->display.update_primary_plane =
                        ironlake_update_primary_plane;
        } else if (HAS_PCH_SPLIT(dev)) {
@@ -14506,7 +14462,6 @@ static void intel_init_display(struct drm_device *dev)
                        ironlake_crtc_compute_clock;
                dev_priv->display.crtc_enable = ironlake_crtc_enable;
                dev_priv->display.crtc_disable = ironlake_crtc_disable;
-               dev_priv->display.off = i9xx_crtc_off;
                dev_priv->display.update_primary_plane =
                        ironlake_update_primary_plane;
        } else if (IS_VALLEYVIEW(dev)) {
@@ -14516,7 +14471,6 @@ static void intel_init_display(struct drm_device *dev)
                dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock;
                dev_priv->display.crtc_enable = valleyview_crtc_enable;
                dev_priv->display.crtc_disable = i9xx_crtc_disable;
-               dev_priv->display.off = i9xx_crtc_off;
                dev_priv->display.update_primary_plane =
                        i9xx_update_primary_plane;
        } else {
@@ -14526,7 +14480,6 @@ static void intel_init_display(struct drm_device *dev)
                dev_priv->display.crtc_compute_clock = i9xx_crtc_compute_clock;
                dev_priv->display.crtc_enable = i9xx_crtc_enable;
                dev_priv->display.crtc_disable = i9xx_crtc_disable;
-               dev_priv->display.off = i9xx_crtc_off;
                dev_priv->display.update_primary_plane =
                        i9xx_update_primary_plane;
        }
-- 
2.1.0

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