Merge tag 'drm-misc-fixes-2017-11-20' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

4.15 merge window fixes 1

* tag 'drm-misc-fixes-2017-11-20' of git://anongit.freedesktop.org/drm/drm-misc:
  drm/edid: Don't send non-zero YQ in AVI infoframe for HDMI 1.x sinks
  drm/vc4: Account for interrupts in flight

5 files changed, 22 insertions, 5 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 2e8fb51282ef..5dfe14763871 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -4831,7 +4831,8 @@ void
 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
 				   const struct drm_display_mode *mode,
 				   enum hdmi_quantization_range rgb_quant_range,
-				   bool rgb_quant_range_selectable)
+				   bool rgb_quant_range_selectable,
+				   bool is_hdmi2_sink)
 {
 	/*
 	 * CEA-861:
@@ -4855,8 +4856,15 @@ drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
 	 *  YQ-field to match the RGB Quantization Range being transmitted
 	 *  (e.g., when Limited Range RGB, set YQ=0 or when Full Range RGB,
 	 *  set YQ=1) and the Sink shall ignore the YQ-field."
+	 *
+	 * Unfortunate certain sinks (eg. VIZ Model 67/E261VA) get confused
+	 * by non-zero YQ when receiving RGB. There doesn't seem to be any
+	 * good way to tell which version of CEA-861 the sink supports, so
+	 * we limit non-zero YQ to HDMI 2.0 sinks only as HDMI 2.0 is based
+	 * on on CEA-861-F.
 	 */
-	if (rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)
+	if (!is_hdmi2_sink ||
+	    rgb_quant_range == HDMI_QUANTIZATION_RANGE_LIMITED)
 		frame->ycc_quantization_range =
 			HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
 	else
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 5132dc814788..4dea833f9d1b 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -487,7 +487,8 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
 					   crtc_state->limited_color_range ?
 					   HDMI_QUANTIZATION_RANGE_LIMITED :
 					   HDMI_QUANTIZATION_RANGE_FULL,
-					   intel_hdmi->rgb_quant_range_selectable);
+					   intel_hdmi->rgb_quant_range_selectable,
+					   is_hdmi2_sink);
 
 	/* TODO: handle pixel repetition for YCBCR420 outputs */
 	intel_write_infoframe(encoder, crtc_state, &frame);
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index fa37a1c07cf6..0b2088264039 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -424,7 +424,8 @@ static void vc4_hdmi_set_avi_infoframe(struct drm_encoder *encoder)
 					   vc4_encoder->limited_rgb_range ?
 					   HDMI_QUANTIZATION_RANGE_LIMITED :
 					   HDMI_QUANTIZATION_RANGE_FULL,
-					   vc4_encoder->rgb_range_selectable);
+					   vc4_encoder->rgb_range_selectable,
+					   false);
 
 	vc4_hdmi_write_infoframe(encoder, &frame);
 }
diff --git a/drivers/gpu/drm/vc4/vc4_irq.c b/drivers/gpu/drm/vc4/vc4_irq.c
index 7d7af3a93d94..61b2e5377993 100644
--- a/drivers/gpu/drm/vc4/vc4_irq.c
+++ b/drivers/gpu/drm/vc4/vc4_irq.c
@@ -208,6 +208,9 @@ vc4_irq_postinstall(struct drm_device *dev)
 {
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
 
+	/* Undo the effects of a previous vc4_irq_uninstall. */
+	enable_irq(dev->irq);
+
 	/* Enable both the render done and out of memory interrupts. */
 	V3D_WRITE(V3D_INTENA, V3D_DRIVER_IRQS);
 
@@ -225,6 +228,9 @@ vc4_irq_uninstall(struct drm_device *dev)
 	/* Clear any pending interrupts we might have left. */
 	V3D_WRITE(V3D_INTCTL, V3D_DRIVER_IRQS);
 
+	/* Finish any interrupt handler still in flight. */
+	disable_irq(dev->irq);
+
 	cancel_work_sync(&vc4->overflow_mem_work);
 }
 
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 6f35909b8add..2ec41d032e56 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -362,7 +362,8 @@ void
 drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
 				   const struct drm_display_mode *mode,
 				   enum hdmi_quantization_range rgb_quant_range,
-				   bool rgb_quant_range_selectable);
+				   bool rgb_quant_range_selectable,
+				   bool is_hdmi2_sink);
 
 /**
  * drm_eld_mnl - Get ELD monitor name length in bytes.