---

yaml --- r: 269846 b: refs/heads/master c: d4270e5 h: refs/heads/master v: v3
git-mirror · Oct 21, 2011 · f10b067 · f10b067
1 parent 5817faf
commit f10b067
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Showing 4 changed files with 33 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d64311ab4bd8d1c1e984ce3f0e772266dde95380
+refs/heads/master: d4270e57efe9e2536798c59e1ed2fd0a1e5cdfcf
diff --git a/trunk/drivers/gpu/drm/i915/intel_display.c b/trunk/drivers/gpu/drm/i915/intel_display.c
@@ -2971,6 +2971,24 @@ static void ironlake_pch_enable(struct drm_crtc *crtc)
 	intel_enable_transcoder(dev_priv, pipe);
 }
 
+void intel_cpt_verify_modeset(struct drm_device *dev, int pipe)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int dslreg = PIPEDSL(pipe), tc2reg = TRANS_CHICKEN2(pipe);
+	u32 temp;
+
+	temp = I915_READ(dslreg);
+	udelay(500);
+	if (wait_for(I915_READ(dslreg) != temp, 5)) {
+		/* Without this, mode sets may fail silently on FDI */
+		I915_WRITE(tc2reg, TRANS_AUTOTRAIN_GEN_STALL_DIS);
+		udelay(250);
+		I915_WRITE(tc2reg, 0);
+		if (wait_for(I915_READ(dslreg) != temp, 5))
+			DRM_ERROR("mode set failed: pipe %d stuck\n", pipe);
+	}
+}
+
 static void ironlake_crtc_enable(struct drm_crtc *crtc)
 {
 	struct drm_device *dev = crtc->dev;
@@ -3340,8 +3358,15 @@ void intel_encoder_prepare(struct drm_encoder *encoder)
 void intel_encoder_commit(struct drm_encoder *encoder)
 {
 	struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
+	struct drm_device *dev = encoder->dev;
+	struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
+	struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
+
 	/* lvds has its own version of commit see intel_lvds_commit */
 	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
+
+	if (HAS_PCH_CPT(dev))
+		intel_cpt_verify_modeset(dev, intel_crtc->pipe);
 }
 
 void intel_encoder_destroy(struct drm_encoder *encoder)

diff --git a/trunk/drivers/gpu/drm/i915/intel_dp.c b/trunk/drivers/gpu/drm/i915/intel_dp.c
@@ -1191,6 +1191,8 @@ static void intel_dp_prepare(struct drm_encoder *encoder)
 static void intel_dp_commit(struct drm_encoder *encoder)
 {
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+	struct drm_device *dev = encoder->dev;
+	struct intel_crtc *intel_crtc = to_intel_crtc(intel_dp->base.base.crtc);
 
 	ironlake_edp_panel_vdd_on(intel_dp);
 	intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
@@ -1202,6 +1204,9 @@ static void intel_dp_commit(struct drm_encoder *encoder)
 	ironlake_edp_backlight_on(intel_dp);
 
 	intel_dp->dpms_mode = DRM_MODE_DPMS_ON;
+
+	if (HAS_PCH_CPT(dev))
+		intel_cpt_verify_modeset(dev, intel_crtc->pipe);
 }
 
 static void

diff --git a/trunk/drivers/gpu/drm/i915/intel_drv.h b/trunk/drivers/gpu/drm/i915/intel_drv.h
@@ -382,4 +382,6 @@ extern void intel_fb_restore_mode(struct drm_device *dev);
 extern void intel_init_clock_gating(struct drm_device *dev);
 extern void intel_write_eld(struct drm_encoder *encoder,
 			    struct drm_display_mode *mode);
+extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
+
 #endif /* __INTEL_DRV_H__ */