From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Mon, 1 Jun 2015 10:49:53 +0000 (+0200)
Subject: drm/i915: Make sure all planes and connectors are added on modeset.
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=85a96e7a4213de094acc63fd433dcf766e91c782;p=openwrt%2Fstaging%2Fblogic.git

drm/i915: Make sure all planes and connectors are added on modeset.

Add missing calls to drm_atomic_add_affected_*. This is needed
to convert to atomic planes. When converting to atomic all planes
are needed on modeset. For good measure make sure all connectors
are added too.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 4648fa5ab55a..2b5b829a98ad 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5959,7 +5959,7 @@ static int valleyview_modeset_global_pipes(struct drm_atomic_state *state)
 	struct drm_crtc *crtc;
 	struct drm_crtc_state *crtc_state;
 	int max_pixclk = intel_mode_max_pixclk(state->dev, state);
-	int cdclk, i;
+	int cdclk, ret = 0;
 
 	if (max_pixclk < 0)
 		return max_pixclk;
@@ -5974,20 +5974,25 @@ static int valleyview_modeset_global_pipes(struct drm_atomic_state *state)
 
 	/* add all active pipes to the state */
 	for_each_crtc(state->dev, crtc) {
-		if (!crtc->state->active)
-			continue;
-
 		crtc_state = drm_atomic_get_crtc_state(state, crtc);
 		if (IS_ERR(crtc_state))
 			return PTR_ERR(crtc_state);
-	}
 
-	/* disable/enable all currently active pipes while we change cdclk */
-	for_each_crtc_in_state(state, crtc, crtc_state, i)
-		if (crtc_state->active)
-			crtc_state->mode_changed = true;
+		if (!crtc_state->active || needs_modeset(crtc_state))
+			continue;
 
-	return 0;
+		crtc_state->mode_changed = true;
+
+		ret = drm_atomic_add_affected_connectors(state, crtc);
+		if (ret)
+			break;
+
+		ret = drm_atomic_add_affected_planes(state, crtc);
+		if (ret)
+			break;
+	}
+
+	return ret;
 }
 
 static void vlv_program_pfi_credits(struct drm_i915_private *dev_priv)
@@ -12185,8 +12190,10 @@ encoder_retry:
 
 	/* Check if we need to force a modeset */
 	if (pipe_config->has_audio !=
-	    to_intel_crtc_state(crtc->state)->has_audio)
+	    to_intel_crtc_state(crtc->state)->has_audio) {
 		pipe_config->base.mode_changed = true;
+		ret = drm_atomic_add_affected_planes(state, crtc);
+	}
 
 	/*
 	 * Note we have an issue here with infoframes: current code
@@ -12194,8 +12201,6 @@ encoder_retry:
 	 * requirements.  So here we should be checking for any
 	 * required changes and forcing a mode set.
 	 */
-
-	return 0;
 fail:
 	return ret;
 }