[PATCH v5 0/4] Prep. for DP audio MST support

[PATCH v5 0/4] Prep. for DP audio MST support

[Dhinakaran Pandiyan]

This series lays the groundwork for more DP MST audio work that will
follow.

Rebased and fixed typos this time.

v2:
Different solution replacing the enc_to_dig_port() fix (Ville, Lyude).
No changes to MST audio enabling and move audio_connector patches.
Reordered the patches (Lyude)

v3:
Different solution to get port from encoder (danvet).
Removed locals that are not needed any more.
Minor variable renaming clean up.
Rebased on dinq.
Retained r-b for "start adding dp mst audio" as it does not change.

v4:
Fixed missing port initialization in intel_sdvo.c
Renamed the port enum member from 'attached_port' to 'port'
Fixed commit message typos.

v5:
Really renamed the port enum member from 'attached_port' to 'port'
Rebased on atomic changes.

Dhinakaran Pandiyan (3):
  drm/i915: Store port enum in intel_encoder
  drm/i915: Switch to using port stored in intel_encoder
  drm/i915: Move audio_connector to intel_encoder

Libin Yang (1):
  drm/i915: start adding dp mst audio

 drivers/gpu/drm/i915/i915_debugfs.c | 19 +++++++++++++++-
 drivers/gpu/drm/i915/i915_drv.h     |  1 +
 drivers/gpu/drm/i915/intel_audio.c  | 44 +++++++++++++++----------------------
 drivers/gpu/drm/i915/intel_ddi.c    | 21 +++++++++++++-----
 drivers/gpu/drm/i915/intel_dp.c     |  1 +
 drivers/gpu/drm/i915/intel_dp_mst.c | 19 ++++++++++++++++
 drivers/gpu/drm/i915/intel_drv.h    |  7 ++++--
 drivers/gpu/drm/i915/intel_dsi.c    |  1 +
 drivers/gpu/drm/i915/intel_dvo.c    |  2 ++
 drivers/gpu/drm/i915/intel_hdmi.c   |  1 +
 drivers/gpu/drm/i915/intel_lvds.c   |  3 ++-
 drivers/gpu/drm/i915/intel_sdvo.c   |  1 +
 drivers/gpu/drm/i915/intel_tv.c     |  2 ++
 13 files changed, 87 insertions(+), 35 deletions(-)

-- 
2.5.0

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[PATCH v5 1/4] drm/i915: Store port enum in intel_encoder

[Dhinakaran Pandiyan]

Storing the port enum in intel_encoder makes it convenient to know the
port attached to an encoder. Moving the port information up from
intel_digital_port to intel_encoder avoids unecessary intel_digital_port
access and handles MST encoders cleanly without requiring conditional
checks for them (thanks danvet).

v2:
Renamed the port enum member from 'attached_port' to 'port' (danvet)
Fixed missing initialization of port in intel_sdvo.c (danvet)

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Lyude <cpaul@redhat.com>
---
 drivers/gpu/drm/i915/i915_drv.h     | 1 +
 drivers/gpu/drm/i915/intel_ddi.c    | 1 +
 drivers/gpu/drm/i915/intel_dp.c     | 1 +
 drivers/gpu/drm/i915/intel_dp_mst.c | 1 +
 drivers/gpu/drm/i915/intel_drv.h    | 1 +
 drivers/gpu/drm/i915/intel_dsi.c    | 1 +
 drivers/gpu/drm/i915/intel_dvo.c    | 2 ++
 drivers/gpu/drm/i915/intel_hdmi.c   | 1 +
 drivers/gpu/drm/i915/intel_lvds.c   | 3 ++-
 drivers/gpu/drm/i915/intel_sdvo.c   | 1 +
 drivers/gpu/drm/i915/intel_tv.c     | 2 ++
 11 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c413587..aaa9c60 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -185,6 +185,7 @@ enum plane {
 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
 
 enum port {
+	PORT_NONE = -1,
 	PORT_A = 0,
 	PORT_B,
 	PORT_C,
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index ce369c2..851ebb4 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2440,6 +2440,7 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
 	intel_dig_port->max_lanes = max_lanes;
 
 	intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
+	intel_encoder->port = port;
 	intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 	intel_encoder->cloneable = 0;
 
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e4a2566..e50b122 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5748,6 +5748,7 @@ bool intel_dp_init(struct drm_device *dev,
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 	}
 	intel_encoder->cloneable = 0;
+	intel_encoder->port = port;
 
 	intel_dig_port->hpd_pulse = intel_dp_hpd_pulse;
 	dev_priv->hotplug.irq_port[port] = intel_dig_port;
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 29ba4f6..21ed387 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -520,6 +520,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum
 			 DRM_MODE_ENCODER_DPMST, "DP-MST %c", pipe_name(pipe));
 
 	intel_encoder->type = INTEL_OUTPUT_DP_MST;
+	intel_encoder->port = intel_dig_port->port;
 	intel_encoder->crtc_mask = 0x7;
 	intel_encoder->cloneable = 0;
 
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 570a7ca..808f829 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -202,6 +202,7 @@ struct intel_encoder {
 	struct drm_encoder base;
 
 	enum intel_output_type type;
+	enum port port;
 	unsigned int cloneable;
 	void (*hot_plug)(struct intel_encoder *);
 	bool (*compute_config)(struct intel_encoder *,
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index b2e3d3a..727adaa 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -1488,6 +1488,7 @@ void intel_dsi_init(struct drm_device *dev)
 
 	intel_connector->get_hw_state = intel_connector_get_hw_state;
 
+	intel_encoder->port = port;
 	/*
 	 * On BYT/CHV, pipe A maps to MIPI DSI port A, pipe B maps to MIPI DSI
 	 * port C. BXT isn't limited like this.
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 2e452c5..0cee863 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -516,7 +516,9 @@ void intel_dvo_init(struct drm_device *dev)
 				 "DVO %c", intel_dvo_port_name(dvo->dvo_reg));
 
 		intel_encoder->type = INTEL_OUTPUT_DVO;
+		intel_encoder->port = PORT_NONE;
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
+
 		switch (dvo->type) {
 		case INTEL_DVO_CHIP_TMDS:
 			intel_encoder->cloneable = (1 << INTEL_OUTPUT_ANALOG) |
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 1a116a6..7cde652 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1995,6 +1995,7 @@ void intel_hdmi_init(struct drm_device *dev,
 	}
 
 	intel_encoder->type = INTEL_OUTPUT_HDMI;
+	intel_encoder->port = port;
 	if (IS_CHERRYVIEW(dev)) {
 		if (port == PORT_D)
 			intel_encoder->crtc_mask = 1 << 2;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index e1d47d5..2e943bd 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -1064,8 +1064,9 @@ void intel_lvds_init(struct drm_device *dev)
 	intel_connector->get_hw_state = intel_connector_get_hw_state;
 
 	intel_connector_attach_encoder(intel_connector, intel_encoder);
-	intel_encoder->type = INTEL_OUTPUT_LVDS;
 
+	intel_encoder->type = INTEL_OUTPUT_LVDS;
+	intel_encoder->port = PORT_NONE;
 	intel_encoder->cloneable = 0;
 	if (HAS_PCH_SPLIT(dev))
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index c551024..a061b00 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -2981,6 +2981,7 @@ bool intel_sdvo_init(struct drm_device *dev,
 	/* encoder type will be decided later */
 	intel_encoder = &intel_sdvo->base;
 	intel_encoder->type = INTEL_OUTPUT_SDVO;
+	intel_encoder->port = port;
 	drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0,
 			 "SDVO %c", port_name(port));
 
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index d960e48..3988c45 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1610,7 +1610,9 @@ intel_tv_init(struct drm_device *dev)
 	intel_connector->get_hw_state = intel_connector_get_hw_state;
 
 	intel_connector_attach_encoder(intel_connector, intel_encoder);
+
 	intel_encoder->type = INTEL_OUTPUT_TVOUT;
+	intel_encoder->port = PORT_NONE;
 	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 	intel_encoder->cloneable = 0;
 	intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
-- 
2.5.0

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[PATCH v5 2/4] drm/i915: Switch to using port stored in intel_encoder

[Dhinakaran Pandiyan]

Now that we have the port enum stored in intel_encoder, use that instead of
dereferencing intel_dig_port. Saves us a few locals.

struct intel_encoder variables have been renamed to be consistent and
convey type information.

v2:
Fix incorrect 'enum port' member names - s/attached_port/port

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
---
 drivers/gpu/drm/i915/intel_audio.c | 32 ++++++++++++++------------------
 1 file changed, 14 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 6c70a5b..8f5c685 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -276,17 +276,15 @@ static void hsw_audio_codec_disable(struct intel_encoder *encoder)
 }
 
 static void hsw_audio_codec_enable(struct drm_connector *connector,
-				   struct intel_encoder *encoder,
+				   struct intel_encoder *intel_encoder,
 				   const struct drm_display_mode *adjusted_mode)
 {
 	struct drm_i915_private *dev_priv = to_i915(connector->dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
+	struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
 	enum pipe pipe = intel_crtc->pipe;
+	enum port port = intel_encoder->port;
 	struct i915_audio_component *acomp = dev_priv->audio_component;
 	const uint8_t *eld = connector->eld;
-	struct intel_digital_port *intel_dig_port =
-		enc_to_dig_port(&encoder->base);
-	enum port port = intel_dig_port->port;
 	uint32_t tmp;
 	int len, i;
 	int n, rate;
@@ -355,12 +353,12 @@ static void hsw_audio_codec_enable(struct drm_connector *connector,
 	mutex_unlock(&dev_priv->av_mutex);
 }
 
-static void ilk_audio_codec_disable(struct intel_encoder *encoder)
+static void ilk_audio_codec_disable(struct intel_encoder *intel_encoder)
 {
-	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
-	enum port port = enc_to_dig_port(&encoder->base)->port;
+	struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
+	struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
 	enum pipe pipe = intel_crtc->pipe;
+	enum port port = intel_encoder->port;
 	uint32_t tmp, eldv;
 	i915_reg_t aud_config, aud_cntrl_st2;
 
@@ -400,13 +398,13 @@ static void ilk_audio_codec_disable(struct intel_encoder *encoder)
 }
 
 static void ilk_audio_codec_enable(struct drm_connector *connector,
-				   struct intel_encoder *encoder,
+				   struct intel_encoder *intel_encoder,
 				   const struct drm_display_mode *adjusted_mode)
 {
 	struct drm_i915_private *dev_priv = to_i915(connector->dev);
-	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
-	enum port port = enc_to_dig_port(&encoder->base)->port;
+	struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder->base.crtc);
 	enum pipe pipe = intel_crtc->pipe;
+	enum port port = intel_encoder->port;
 	uint8_t *eld = connector->eld;
 	uint32_t tmp, eldv;
 	int len, i;
@@ -490,11 +488,10 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
 	struct intel_crtc *crtc = to_intel_crtc(encoder->crtc);
 	const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
 	struct drm_connector *connector;
-	struct drm_device *dev = encoder->dev;
-	struct drm_i915_private *dev_priv = to_i915(dev);
+	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
 	struct i915_audio_component *acomp = dev_priv->audio_component;
 	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
-	enum port port = intel_dig_port->port;
+	enum port port = intel_encoder->port;
 
 	connector = drm_select_eld(encoder);
 	if (!connector)
@@ -537,11 +534,10 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
 void intel_audio_codec_disable(struct intel_encoder *intel_encoder)
 {
 	struct drm_encoder *encoder = &intel_encoder->base;
-	struct drm_device *dev = encoder->dev;
-	struct drm_i915_private *dev_priv = to_i915(dev);
+	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
 	struct i915_audio_component *acomp = dev_priv->audio_component;
 	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
-	enum port port = intel_dig_port->port;
+	enum port port = intel_encoder->port;
 
 	if (dev_priv->display.audio_codec_disable)
 		dev_priv->display.audio_codec_disable(intel_encoder);
-- 
2.5.0

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[PATCH v5 3/4] drm/i915: Move audio_connector to intel_encoder

[Dhinakaran Pandiyan]

With DP MST, a digital_port can carry more than one audio stream. Hence,
more than one audio_connector needs to be attached to intel_digital_port in
such cases. However, each stream is associated with an unique encoder. So,
instead of creating an array of audio_connectors per port, move
audio_connector from struct intel_digital_port to struct intel_encoder.
This also simplifies access to the right audio_connector from codec
functions in intel_audio.c that receive intel_encoder.

v2: Removed locals that are not needed anymore.

v3: No code change except for minor change in context.

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Lyude <cpaul@redhat.com>
---
 drivers/gpu/drm/i915/intel_audio.c | 12 ++++--------
 drivers/gpu/drm/i915/intel_drv.h   |  4 ++--
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 8f5c685..40fbdd8 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -490,7 +490,6 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
 	struct drm_connector *connector;
 	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
 	struct i915_audio_component *acomp = dev_priv->audio_component;
-	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
 	enum port port = intel_encoder->port;
 
 	connector = drm_select_eld(encoder);
@@ -515,7 +514,7 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
 						     adjusted_mode);
 
 	mutex_lock(&dev_priv->av_mutex);
-	intel_dig_port->audio_connector = connector;
+	intel_encoder->audio_connector = connector;
 	/* referred in audio callbacks */
 	dev_priv->dig_port_map[port] = intel_encoder;
 	mutex_unlock(&dev_priv->av_mutex);
@@ -536,14 +535,13 @@ void intel_audio_codec_disable(struct intel_encoder *intel_encoder)
 	struct drm_encoder *encoder = &intel_encoder->base;
 	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
 	struct i915_audio_component *acomp = dev_priv->audio_component;
-	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
 	enum port port = intel_encoder->port;
 
 	if (dev_priv->display.audio_codec_disable)
 		dev_priv->display.audio_codec_disable(intel_encoder);
 
 	mutex_lock(&dev_priv->av_mutex);
-	intel_dig_port->audio_connector = NULL;
+	intel_encoder->audio_connector = NULL;
 	dev_priv->dig_port_map[port] = NULL;
 	mutex_unlock(&dev_priv->av_mutex);
 
@@ -704,7 +702,6 @@ static int i915_audio_component_get_eld(struct device *kdev, int port,
 {
 	struct drm_i915_private *dev_priv = kdev_to_i915(kdev);
 	struct intel_encoder *intel_encoder;
-	struct intel_digital_port *intel_dig_port;
 	const u8 *eld;
 	int ret = -EINVAL;
 
@@ -713,10 +710,9 @@ static int i915_audio_component_get_eld(struct device *kdev, int port,
 	/* intel_encoder might be NULL for DP MST */
 	if (intel_encoder) {
 		ret = 0;
-		intel_dig_port = enc_to_dig_port(&intel_encoder->base);
-		*enabled = intel_dig_port->audio_connector != NULL;
+		*enabled = intel_encoder->audio_connector != NULL;
 		if (*enabled) {
-			eld = intel_dig_port->audio_connector->eld;
+			eld = intel_encoder->audio_connector->eld;
 			ret = drm_eld_size(eld);
 			memcpy(buf, eld, min(max_bytes, ret));
 		}
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 808f829..6c62b79 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -244,6 +244,8 @@ struct intel_encoder {
 	void (*suspend)(struct intel_encoder *);
 	int crtc_mask;
 	enum hpd_pin hpd_pin;
+	/* for communication with audio component; protected by av_mutex */
+	const struct drm_connector *audio_connector;
 };
 
 struct intel_panel {
@@ -960,8 +962,6 @@ struct intel_digital_port {
 	enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
 	bool release_cl2_override;
 	uint8_t max_lanes;
-	/* for communication with audio component; protected by av_mutex */
-	const struct drm_connector *audio_connector;
 };
 
 struct intel_dp_mst_encoder {
-- 
2.5.0

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[PATCH v5 4/4] drm/i915: start adding dp mst audio

[Dhinakaran Pandiyan]

From: Libin Yang <libin.yang@linux.intel.com>

(This patch is developed by Dave Airlie <airlied@redhat.com> originally)

This patch adds support for DP MST audio in i915.

Enable audio codec when DP MST is enabled if has_audio flag is set.
Disable audio codec when DP MST is disabled if has_audio flag is set.

Another separated patches to support DP MST audio will be implemented
in audio driver.

v2:
Rebased becaus of atomic changes.

Signed-off-by: Libin Yang <libin.yang@linux.intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 19 ++++++++++++++++++-
 drivers/gpu/drm/i915/intel_ddi.c    | 20 +++++++++++++++-----
 drivers/gpu/drm/i915/intel_dp_mst.c | 18 ++++++++++++++++++
 drivers/gpu/drm/i915/intel_drv.h    |  2 ++
 4 files changed, 53 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index d89359a..4c24843 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2876,6 +2876,20 @@ static void intel_dp_info(struct seq_file *m,
 		intel_panel_info(m, &intel_connector->panel);
 }
 
+static void intel_dp_mst_info(struct seq_file *m,
+			  struct intel_connector *intel_connector)
+{
+	struct intel_encoder *intel_encoder = intel_connector->encoder;
+	struct intel_dp_mst_encoder *intel_mst =
+		enc_to_mst(&intel_encoder->base);
+	struct intel_digital_port *intel_dig_port = intel_mst->primary;
+	struct intel_dp *intel_dp = &intel_dig_port->dp;
+	bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr,
+					intel_connector->port);
+
+	seq_printf(m, "\taudio support: %s\n", yesno(has_audio));
+}
+
 static void intel_hdmi_info(struct seq_file *m,
 			    struct intel_connector *intel_connector)
 {
@@ -2918,7 +2932,10 @@ static void intel_connector_info(struct seq_file *m,
 	switch (connector->connector_type) {
 	case DRM_MODE_CONNECTOR_DisplayPort:
 	case DRM_MODE_CONNECTOR_eDP:
-		intel_dp_info(m, intel_connector);
+		if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
+			intel_dp_mst_info(m, intel_connector);
+		else
+			intel_dp_info(m, intel_connector);
 		break;
 	case DRM_MODE_CONNECTOR_LVDS:
 		if (intel_encoder->type == INTEL_OUTPUT_LVDS)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 851ebb4..ee21126 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2186,6 +2186,19 @@ void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp)
 	udelay(600);
 }
 
+bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
+				 struct intel_crtc *intel_crtc)
+{
+	u32 temp;
+
+	if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) {
+		temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
+		if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe))
+			return true;
+	}
+	return false;
+}
+
 void intel_ddi_get_config(struct intel_encoder *encoder,
 			  struct intel_crtc_state *pipe_config)
 {
@@ -2251,11 +2264,8 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 		break;
 	}
 
-	if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) {
-		temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
-		if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe))
-			pipe_config->has_audio = true;
-	}
+	pipe_config->has_audio =
+		intel_ddi_is_audio_enabled(dev_priv, intel_crtc);
 
 	if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.bpp &&
 	    pipe_config->pipe_bpp > dev_priv->vbt.edp.bpp) {
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 21ed387..ed3ebcd 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -37,6 +37,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
 	struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
 	struct intel_digital_port *intel_dig_port = intel_mst->primary;
 	struct intel_dp *intel_dp = &intel_dig_port->dp;
+	struct intel_connector *connector =
+		to_intel_connector(conn_state->connector);
 	struct drm_atomic_state *state;
 	int bpp;
 	int lane_count, slots;
@@ -59,6 +61,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
 
 	state = pipe_config->base.state;
 
+	if (drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, connector->port))
+		pipe_config->has_audio = true;
 	mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, bpp);
 
 	pipe_config->pbn = mst_pbn;
@@ -84,6 +88,7 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder,
 	struct intel_dp *intel_dp = &intel_dig_port->dp;
 	struct intel_connector *connector =
 		to_intel_connector(old_conn_state->connector);
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	int ret;
 
 	DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
@@ -94,6 +99,10 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder,
 	if (ret) {
 		DRM_ERROR("failed to update payload %d\n", ret);
 	}
+	if (old_crtc_state->has_audio) {
+		intel_audio_codec_disable(encoder);
+		intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
+	}
 }
 
 static void intel_mst_post_disable_dp(struct intel_encoder *encoder,
@@ -203,6 +212,12 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder,
 	ret = drm_dp_check_act_status(&intel_dp->mst_mgr);
 
 	ret = drm_dp_update_payload_part2(&intel_dp->mst_mgr);
+	if (pipe_config->has_audio) {
+		DRM_DEBUG_DRIVER("Enabling DP audio on pipe %c\n",
+				 pipe_name(intel_mst->pipe));
+		intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO);
+		intel_audio_codec_enable(encoder);
+	}
 }
 
 static bool intel_dp_mst_enc_get_hw_state(struct intel_encoder *encoder,
@@ -225,6 +240,9 @@ static void intel_dp_mst_enc_get_config(struct intel_encoder *encoder,
 	enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
 	u32 temp, flags = 0;
 
+	pipe_config->has_audio =
+		intel_ddi_is_audio_enabled(dev_priv, crtc);
+
 	temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
 	if (temp & TRANS_DDI_PHSYNC)
 		flags |= DRM_MODE_FLAG_PHSYNC;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 6c62b79..715623c 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1156,6 +1156,8 @@ bool intel_ddi_pll_select(struct intel_crtc *crtc,
 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
+bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
+				 struct intel_crtc *intel_crtc);
 void intel_ddi_get_config(struct intel_encoder *encoder,
 			  struct intel_crtc_state *pipe_config);
 struct intel_encoder *
-- 
2.5.0

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Re: [PATCH v5 2/4] drm/i915: Switch to using port stored in intel_encoder

[Lyude Paul]

Reviewed-by: Lyude <cpaul@redhat.com>

On Wed, 2016-08-31 at 17:20 -0700, Dhinakaran Pandiyan wrote:
> Now that we have the port enum stored in intel_encoder, use that instead of
> dereferencing intel_dig_port. Saves us a few locals.
> 
> struct intel_encoder variables have been renamed to be consistent and
> convey type information.
> 
> v2:
> Fix incorrect 'enum port' member names - s/attached_port/port
> 
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_audio.c | 32 ++++++++++++++------------------
>  1 file changed, 14 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_audio.c
> b/drivers/gpu/drm/i915/intel_audio.c
> index 6c70a5b..8f5c685 100644
> --- a/drivers/gpu/drm/i915/intel_audio.c
> +++ b/drivers/gpu/drm/i915/intel_audio.c
> @@ -276,17 +276,15 @@ static void hsw_audio_codec_disable(struct intel_encoder
> *encoder)
>  }
>  
>  static void hsw_audio_codec_enable(struct drm_connector *connector,
> -				   struct intel_encoder *encoder,
> +				   struct intel_encoder *intel_encoder,
>  				   const struct drm_display_mode
> *adjusted_mode)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(connector->dev);
> -	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
> +	struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder-
> >base.crtc);
>  	enum pipe pipe = intel_crtc->pipe;
> +	enum port port = intel_encoder->port;
>  	struct i915_audio_component *acomp = dev_priv->audio_component;
>  	const uint8_t *eld = connector->eld;
> -	struct intel_digital_port *intel_dig_port =
> -		enc_to_dig_port(&encoder->base);
> -	enum port port = intel_dig_port->port;
>  	uint32_t tmp;
>  	int len, i;
>  	int n, rate;
> @@ -355,12 +353,12 @@ static void hsw_audio_codec_enable(struct drm_connector
> *connector,
>  	mutex_unlock(&dev_priv->av_mutex);
>  }
>  
> -static void ilk_audio_codec_disable(struct intel_encoder *encoder)
> +static void ilk_audio_codec_disable(struct intel_encoder *intel_encoder)
>  {
> -	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> -	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
> -	enum port port = enc_to_dig_port(&encoder->base)->port;
> +	struct drm_i915_private *dev_priv = to_i915(intel_encoder->base.dev);
> +	struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder-
> >base.crtc);
>  	enum pipe pipe = intel_crtc->pipe;
> +	enum port port = intel_encoder->port;
>  	uint32_t tmp, eldv;
>  	i915_reg_t aud_config, aud_cntrl_st2;
>  
> @@ -400,13 +398,13 @@ static void ilk_audio_codec_disable(struct intel_encoder
> *encoder)
>  }
>  
>  static void ilk_audio_codec_enable(struct drm_connector *connector,
> -				   struct intel_encoder *encoder,
> +				   struct intel_encoder *intel_encoder,
>  				   const struct drm_display_mode
> *adjusted_mode)
>  {
>  	struct drm_i915_private *dev_priv = to_i915(connector->dev);
> -	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->base.crtc);
> -	enum port port = enc_to_dig_port(&encoder->base)->port;
> +	struct intel_crtc *intel_crtc = to_intel_crtc(intel_encoder-
> >base.crtc);
>  	enum pipe pipe = intel_crtc->pipe;
> +	enum port port = intel_encoder->port;
>  	uint8_t *eld = connector->eld;
>  	uint32_t tmp, eldv;
>  	int len, i;
> @@ -490,11 +488,10 @@ void intel_audio_codec_enable(struct intel_encoder
> *intel_encoder)
>  	struct intel_crtc *crtc = to_intel_crtc(encoder->crtc);
>  	const struct drm_display_mode *adjusted_mode = &crtc->config-
> >base.adjusted_mode;
>  	struct drm_connector *connector;
> -	struct drm_device *dev = encoder->dev;
> -	struct drm_i915_private *dev_priv = to_i915(dev);
> +	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
>  	struct i915_audio_component *acomp = dev_priv->audio_component;
>  	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
> -	enum port port = intel_dig_port->port;
> +	enum port port = intel_encoder->port;
>  
>  	connector = drm_select_eld(encoder);
>  	if (!connector)
> @@ -537,11 +534,10 @@ void intel_audio_codec_enable(struct intel_encoder
> *intel_encoder)
>  void intel_audio_codec_disable(struct intel_encoder *intel_encoder)
>  {
>  	struct drm_encoder *encoder = &intel_encoder->base;
> -	struct drm_device *dev = encoder->dev;
> -	struct drm_i915_private *dev_priv = to_i915(dev);
> +	struct drm_i915_private *dev_priv = to_i915(encoder->dev);
>  	struct i915_audio_component *acomp = dev_priv->audio_component;
>  	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
> -	enum port port = intel_dig_port->port;
> +	enum port port = intel_encoder->port;
>  
>  	if (dev_priv->display.audio_codec_disable)
>  		dev_priv->display.audio_codec_disable(intel_encoder);
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✗ Fi.CI.BAT: failure for Prep. for DP audio MST support (rev8)

[Patchwork]

== Series Details ==

Series: Prep. for DP audio MST support (rev8)
URL   : https://patchwork.freedesktop.org/series/11129/
State : failure

== Summary ==

Series 11129v8 Prep. for DP audio MST support
http://patchwork.freedesktop.org/api/1.0/series/11129/revisions/8/mbox/

Test kms_cursor_legacy:
        Subgroup basic-cursor-vs-flip-varying-size:
                pass       -> FAIL       (fi-bsw-n3050)
Test prime_vgem:
        Subgroup basic-fence-flip:
                pass       -> FAIL       (fi-bdw-5557u)
                pass       -> FAIL       (fi-byt-n2820)
                fail       -> PASS       (fi-snb-2600)

fi-bdw-5557u     total:252  pass:235  dwarn:0   dfail:0   fail:2   skip:15 
fi-bsw-n3050     total:252  pass:204  dwarn:0   dfail:0   fail:2   skip:46 
fi-byt-n2820     total:252  pass:208  dwarn:0   dfail:0   fail:3   skip:41 
fi-hsw-4770k     total:252  pass:229  dwarn:0   dfail:0   fail:1   skip:22 
fi-hsw-4770r     total:252  pass:225  dwarn:0   dfail:0   fail:1   skip:26 
fi-ivb-3520m     total:252  pass:220  dwarn:0   dfail:0   fail:1   skip:31 
fi-skl-6260u     total:252  pass:237  dwarn:0   dfail:0   fail:1   skip:14 
fi-skl-6700k     total:252  pass:223  dwarn:0   dfail:0   fail:1   skip:28 
fi-snb-2520m     total:252  pass:207  dwarn:0   dfail:0   fail:2   skip:43 
fi-snb-2600      total:252  pass:208  dwarn:0   dfail:0   fail:1   skip:43 

Results at /archive/results/CI_IGT_test/Patchwork_2457/

cb8b5ca97c2d7ae7514c61e214c69fd23b0d5039 drm-intel-nightly: 2016y-08m-31d-11h-30m-30s UTC integration manifest
5ac5f27 drm/i915: start adding dp mst audio
6c7fd8b drm/i915: Move audio_connector to intel_encoder
80acf60 drm/i915: Switch to using port stored in intel_encoder
0792e97 drm/i915: Store port enum in intel_encoder

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Re: [PATCH v5 4/4] drm/i915: start adding dp mst audio

[Jim Bride]

On Wed, Aug 31, 2016 at 05:20:26PM -0700, Dhinakaran Pandiyan wrote:
> From: Libin Yang <libin.yang@linux.intel.com>
> 
> (This patch is developed by Dave Airlie <airlied@redhat.com> originally)
> 
> This patch adds support for DP MST audio in i915.
> 
> Enable audio codec when DP MST is enabled if has_audio flag is set.
> Disable audio codec when DP MST is disabled if has_audio flag is set.
> 
> Another separated patches to support DP MST audio will be implemented
> in audio driver.
> 
> v2:
> Rebased becaus of atomic changes.
> 
> Signed-off-by: Libin Yang <libin.yang@linux.intel.com>
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>

Reviewed-by: Jim Bride <jim.bride@linux.intel.com>

> ---
>  drivers/gpu/drm/i915/i915_debugfs.c | 19 ++++++++++++++++++-
>  drivers/gpu/drm/i915/intel_ddi.c    | 20 +++++++++++++++-----
>  drivers/gpu/drm/i915/intel_dp_mst.c | 18 ++++++++++++++++++
>  drivers/gpu/drm/i915/intel_drv.h    |  2 ++
>  4 files changed, 53 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index d89359a..4c24843 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2876,6 +2876,20 @@ static void intel_dp_info(struct seq_file *m,
>  		intel_panel_info(m, &intel_connector->panel);
>  }
>  
> +static void intel_dp_mst_info(struct seq_file *m,
> +			  struct intel_connector *intel_connector)
> +{
> +	struct intel_encoder *intel_encoder = intel_connector->encoder;
> +	struct intel_dp_mst_encoder *intel_mst =
> +		enc_to_mst(&intel_encoder->base);
> +	struct intel_digital_port *intel_dig_port = intel_mst->primary;
> +	struct intel_dp *intel_dp = &intel_dig_port->dp;
> +	bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr,
> +					intel_connector->port);
> +
> +	seq_printf(m, "\taudio support: %s\n", yesno(has_audio));
> +}
> +
>  static void intel_hdmi_info(struct seq_file *m,
>  			    struct intel_connector *intel_connector)
>  {
> @@ -2918,7 +2932,10 @@ static void intel_connector_info(struct seq_file *m,
>  	switch (connector->connector_type) {
>  	case DRM_MODE_CONNECTOR_DisplayPort:
>  	case DRM_MODE_CONNECTOR_eDP:
> -		intel_dp_info(m, intel_connector);
> +		if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
> +			intel_dp_mst_info(m, intel_connector);
> +		else
> +			intel_dp_info(m, intel_connector);
>  		break;
>  	case DRM_MODE_CONNECTOR_LVDS:
>  		if (intel_encoder->type == INTEL_OUTPUT_LVDS)
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> index 851ebb4..ee21126 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -2186,6 +2186,19 @@ void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp)
>  	udelay(600);
>  }
>  
> +bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
> +				 struct intel_crtc *intel_crtc)
> +{
> +	u32 temp;
> +
> +	if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) {
> +		temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
> +		if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe))
> +			return true;
> +	}
> +	return false;
> +}
> +
>  void intel_ddi_get_config(struct intel_encoder *encoder,
>  			  struct intel_crtc_state *pipe_config)
>  {
> @@ -2251,11 +2264,8 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
>  		break;
>  	}
>  
> -	if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) {
> -		temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
> -		if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe))
> -			pipe_config->has_audio = true;
> -	}
> +	pipe_config->has_audio =
> +		intel_ddi_is_audio_enabled(dev_priv, intel_crtc);
>  
>  	if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp.bpp &&
>  	    pipe_config->pipe_bpp > dev_priv->vbt.edp.bpp) {
> diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
> index 21ed387..ed3ebcd 100644
> --- a/drivers/gpu/drm/i915/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/intel_dp_mst.c
> @@ -37,6 +37,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
>  	struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
>  	struct intel_digital_port *intel_dig_port = intel_mst->primary;
>  	struct intel_dp *intel_dp = &intel_dig_port->dp;
> +	struct intel_connector *connector =
> +		to_intel_connector(conn_state->connector);
>  	struct drm_atomic_state *state;
>  	int bpp;
>  	int lane_count, slots;
> @@ -59,6 +61,8 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
>  
>  	state = pipe_config->base.state;
>  
> +	if (drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, connector->port))
> +		pipe_config->has_audio = true;
>  	mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, bpp);
>  
>  	pipe_config->pbn = mst_pbn;
> @@ -84,6 +88,7 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder,
>  	struct intel_dp *intel_dp = &intel_dig_port->dp;
>  	struct intel_connector *connector =
>  		to_intel_connector(old_conn_state->connector);
> +	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
>  	int ret;
>  
>  	DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
> @@ -94,6 +99,10 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder,
>  	if (ret) {
>  		DRM_ERROR("failed to update payload %d\n", ret);
>  	}
> +	if (old_crtc_state->has_audio) {
> +		intel_audio_codec_disable(encoder);
> +		intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
> +	}
>  }
>  
>  static void intel_mst_post_disable_dp(struct intel_encoder *encoder,
> @@ -203,6 +212,12 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder,
>  	ret = drm_dp_check_act_status(&intel_dp->mst_mgr);
>  
>  	ret = drm_dp_update_payload_part2(&intel_dp->mst_mgr);
> +	if (pipe_config->has_audio) {
> +		DRM_DEBUG_DRIVER("Enabling DP audio on pipe %c\n",
> +				 pipe_name(intel_mst->pipe));
> +		intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO);
> +		intel_audio_codec_enable(encoder);
> +	}
>  }
>  
>  static bool intel_dp_mst_enc_get_hw_state(struct intel_encoder *encoder,
> @@ -225,6 +240,9 @@ static void intel_dp_mst_enc_get_config(struct intel_encoder *encoder,
>  	enum transcoder cpu_transcoder = pipe_config->cpu_transcoder;
>  	u32 temp, flags = 0;
>  
> +	pipe_config->has_audio =
> +		intel_ddi_is_audio_enabled(dev_priv, crtc);
> +
>  	temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
>  	if (temp & TRANS_DDI_PHSYNC)
>  		flags |= DRM_MODE_FLAG_PHSYNC;
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 6c62b79..715623c 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1156,6 +1156,8 @@ bool intel_ddi_pll_select(struct intel_crtc *crtc,
>  void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
>  void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
>  bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
> +bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
> +				 struct intel_crtc *intel_crtc);
>  void intel_ddi_get_config(struct intel_encoder *encoder,
>  			  struct intel_crtc_state *pipe_config);
>  struct intel_encoder *
> -- 
> 2.5.0
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[PATCH v6 1/4] drm/i915: Store port enum in intel_encoder

[Dhinakaran Pandiyan]

Storing the port enum in intel_encoder makes it convenient to know the
port attached to an encoder. Moving the port information up from
intel_digital_port to intel_encoder avoids unecessary intel_digital_port
access and handles MST encoders cleanly without requiring conditional
checks for them (thanks danvet).

v2:
Renamed the port enum member from 'attached_port' to 'port' (danvet)
Fixed missing initialization of port in intel_sdvo.c (danvet)

v3:
Fixed missing initialization of port in intel_crt.c (Ville)

Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Lyude <cpaul@redhat.com>
---
 drivers/gpu/drm/i915/i915_drv.h     | 1 +
 drivers/gpu/drm/i915/intel_crt.c    | 1 +
 drivers/gpu/drm/i915/intel_ddi.c    | 1 +
 drivers/gpu/drm/i915/intel_dp.c     | 1 +
 drivers/gpu/drm/i915/intel_dp_mst.c | 1 +
 drivers/gpu/drm/i915/intel_drv.h    | 1 +
 drivers/gpu/drm/i915/intel_dsi.c    | 1 +
 drivers/gpu/drm/i915/intel_dvo.c    | 2 ++
 drivers/gpu/drm/i915/intel_hdmi.c   | 1 +
 drivers/gpu/drm/i915/intel_lvds.c   | 3 ++-
 drivers/gpu/drm/i915/intel_sdvo.c   | 1 +
 drivers/gpu/drm/i915/intel_tv.c     | 2 ++
 12 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 1e2dda8..3a2c9e7 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -185,6 +185,7 @@ enum plane {
 #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
 
 enum port {
+	PORT_NONE = -1,
 	PORT_A = 0,
 	PORT_B,
 	PORT_C,
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index dfbcf16..76ff1ff 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -892,6 +892,7 @@ void intel_crt_init(struct drm_device *dev)
 	intel_connector_attach_encoder(intel_connector, &crt->base);
 
 	crt->base.type = INTEL_OUTPUT_ANALOG;
+	crt->base.port = PORT_NONE;
 	crt->base.cloneable = (1 << INTEL_OUTPUT_DVO) | (1 << INTEL_OUTPUT_HDMI);
 	if (IS_I830(dev))
 		crt->base.crtc_mask = (1 << 0);
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 8280548..672f71c 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2523,6 +2523,7 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
 	intel_dig_port->max_lanes = max_lanes;
 
 	intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
+	intel_encoder->port = port;
 	intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 	intel_encoder->cloneable = 0;
 
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 75ac62f..e0dda78 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5752,6 +5752,7 @@ bool intel_dp_init(struct drm_device *dev,
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
 	}
 	intel_encoder->cloneable = 0;
+	intel_encoder->port = port;
 
 	intel_dig_port->hpd_pulse = intel_dp_hpd_pulse;
 	dev_priv->hotplug.irq_port[port] = intel_dig_port;
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 54a9d76..3ffbd69 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -523,6 +523,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum
 			 DRM_MODE_ENCODER_DPMST, "DP-MST %c", pipe_name(pipe));
 
 	intel_encoder->type = INTEL_OUTPUT_DP_MST;
+	intel_encoder->port = intel_dig_port->port;
 	intel_encoder->crtc_mask = 0x7;
 	intel_encoder->cloneable = 0;
 
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index abe7a4d..a26f08b 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -202,6 +202,7 @@ struct intel_encoder {
 	struct drm_encoder base;
 
 	enum intel_output_type type;
+	enum port port;
 	unsigned int cloneable;
 	void (*hot_plug)(struct intel_encoder *);
 	bool (*compute_config)(struct intel_encoder *,
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index b2e3d3a..727adaa 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -1488,6 +1488,7 @@ void intel_dsi_init(struct drm_device *dev)
 
 	intel_connector->get_hw_state = intel_connector_get_hw_state;
 
+	intel_encoder->port = port;
 	/*
 	 * On BYT/CHV, pipe A maps to MIPI DSI port A, pipe B maps to MIPI DSI
 	 * port C. BXT isn't limited like this.
diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
index 2e452c5..0cee863 100644
--- a/drivers/gpu/drm/i915/intel_dvo.c
+++ b/drivers/gpu/drm/i915/intel_dvo.c
@@ -516,7 +516,9 @@ void intel_dvo_init(struct drm_device *dev)
 				 "DVO %c", intel_dvo_port_name(dvo->dvo_reg));
 
 		intel_encoder->type = INTEL_OUTPUT_DVO;
+		intel_encoder->port = PORT_NONE;
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
+
 		switch (dvo->type) {
 		case INTEL_DVO_CHIP_TMDS:
 			intel_encoder->cloneable = (1 << INTEL_OUTPUT_ANALOG) |
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index c51073f..8d49800 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -1972,6 +1972,7 @@ void intel_hdmi_init(struct drm_device *dev,
 	}
 
 	intel_encoder->type = INTEL_OUTPUT_HDMI;
+	intel_encoder->port = port;
 	if (IS_CHERRYVIEW(dev)) {
 		if (port == PORT_D)
 			intel_encoder->crtc_mask = 1 << 2;
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index e1d47d5..2e943bd 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -1064,8 +1064,9 @@ void intel_lvds_init(struct drm_device *dev)
 	intel_connector->get_hw_state = intel_connector_get_hw_state;
 
 	intel_connector_attach_encoder(intel_connector, intel_encoder);
-	intel_encoder->type = INTEL_OUTPUT_LVDS;
 
+	intel_encoder->type = INTEL_OUTPUT_LVDS;
+	intel_encoder->port = PORT_NONE;
 	intel_encoder->cloneable = 0;
 	if (HAS_PCH_SPLIT(dev))
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index c551024..a061b00 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -2981,6 +2981,7 @@ bool intel_sdvo_init(struct drm_device *dev,
 	/* encoder type will be decided later */
 	intel_encoder = &intel_sdvo->base;
 	intel_encoder->type = INTEL_OUTPUT_SDVO;
+	intel_encoder->port = port;
 	drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0,
 			 "SDVO %c", port_name(port));
 
diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index d960e48..3988c45 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -1610,7 +1610,9 @@ intel_tv_init(struct drm_device *dev)
 	intel_connector->get_hw_state = intel_connector_get_hw_state;
 
 	intel_connector_attach_encoder(intel_connector, intel_encoder);
+
 	intel_encoder->type = INTEL_OUTPUT_TVOUT;
+	intel_encoder->port = PORT_NONE;
 	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 	intel_encoder->cloneable = 0;
 	intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));
-- 
2.5.0

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✓ Fi.CI.BAT: success for Prep. for DP audio MST support (rev9)

[Patchwork]

== Series Details ==

Series: Prep. for DP audio MST support (rev9)
URL   : https://patchwork.freedesktop.org/series/11129/
State : success

== Summary ==

Series 11129v9 Prep. for DP audio MST support
https://patchwork.freedesktop.org/api/1.0/series/11129/revisions/9/mbox/


fi-bdw-5557u     total:254  pass:239  dwarn:0   dfail:0   fail:0   skip:15 
fi-bsw-n3050     total:254  pass:208  dwarn:0   dfail:0   fail:0   skip:46 
fi-byt-n2820     total:254  pass:212  dwarn:0   dfail:0   fail:1   skip:41 
fi-hsw-4770k     total:254  pass:232  dwarn:0   dfail:0   fail:0   skip:22 
fi-hsw-4770r     total:254  pass:228  dwarn:0   dfail:0   fail:0   skip:26 
fi-ilk-650       total:254  pass:184  dwarn:0   dfail:0   fail:2   skip:68 
fi-ivb-3520m     total:254  pass:223  dwarn:0   dfail:0   fail:0   skip:31 
fi-ivb-3770      total:254  pass:223  dwarn:0   dfail:0   fail:0   skip:31 
fi-skl-6260u     total:254  pass:240  dwarn:0   dfail:0   fail:0   skip:14 
fi-skl-6700hq    total:254  pass:227  dwarn:0   dfail:0   fail:1   skip:26 
fi-skl-6700k     total:254  pass:225  dwarn:1   dfail:0   fail:0   skip:28 
fi-snb-2520m     total:254  pass:209  dwarn:0   dfail:0   fail:0   skip:45 
fi-snb-2600      total:254  pass:209  dwarn:0   dfail:0   fail:0   skip:45 

Results at /archive/results/CI_IGT_test/Patchwork_2516/

0cc042fc53f4a476e48494f6be8f74ec7296901f drm-intel-nightly: 2016y-09m-12d-21h-05m-37s UTC integration manifest
6a19c60 drm/i915: start adding dp mst audio
2f9a39c drm/i915: Move audio_connector to intel_encoder
7b1d954 drm/i915: Switch to using port stored in intel_encoder
3d642fa drm/i915: Store port enum in intel_encoder

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Re: [PATCH v6 1/4] drm/i915: Store port enum in intel_encoder

[Pandiyan, Dhinakaran]

On Mon, 2016-09-12 at 18:00 -0700, Dhinakaran Pandiyan wrote:
> Storing the port enum in intel_encoder makes it convenient to know the
> port attached to an encoder. Moving the port information up from
> intel_digital_port to intel_encoder avoids unecessary intel_digital_port
> access and handles MST encoders cleanly without requiring conditional
> checks for them (thanks danvet).
> 
> v2:
> Renamed the port enum member from 'attached_port' to 'port' (danvet)
> Fixed missing initialization of port in intel_sdvo.c (danvet)
> 
> v3:
> Fixed missing initialization of port in intel_crt.c (Ville)
> 
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
> Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> Reviewed-by: Lyude <cpaul@redhat.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.h     | 1 +
>  drivers/gpu/drm/i915/intel_crt.c    | 1 +
>  drivers/gpu/drm/i915/intel_ddi.c    | 1 +
>  drivers/gpu/drm/i915/intel_dp.c     | 1 +
>  drivers/gpu/drm/i915/intel_dp_mst.c | 1 +
>  drivers/gpu/drm/i915/intel_drv.h    | 1 +
>  drivers/gpu/drm/i915/intel_dsi.c    | 1 +
>  drivers/gpu/drm/i915/intel_dvo.c    | 2 ++
>  drivers/gpu/drm/i915/intel_hdmi.c   | 1 +
>  drivers/gpu/drm/i915/intel_lvds.c   | 3 ++-
>  drivers/gpu/drm/i915/intel_sdvo.c   | 1 +
>  drivers/gpu/drm/i915/intel_tv.c     | 2 ++
>  12 files changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 1e2dda8..3a2c9e7 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -185,6 +185,7 @@ enum plane {
>  #define sprite_name(p, s) ((p) * INTEL_INFO(dev)->num_sprites[(p)] + (s) + 'A')
>  
>  enum port {
> +	PORT_NONE = -1,
>  	PORT_A = 0,
>  	PORT_B,
>  	PORT_C,
> diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
> index dfbcf16..76ff1ff 100644
> --- a/drivers/gpu/drm/i915/intel_crt.c
> +++ b/drivers/gpu/drm/i915/intel_crt.c
> @@ -892,6 +892,7 @@ void intel_crt_init(struct drm_device *dev)
>  	intel_connector_attach_encoder(intel_connector, &crt->base);
>  
>  	crt->base.type = INTEL_OUTPUT_ANALOG;
> +	crt->base.port = PORT_NONE;

Or is this actually PORT_E for any analog encoder ? 

>  	crt->base.cloneable = (1 << INTEL_OUTPUT_DVO) | (1 << INTEL_OUTPUT_HDMI);
>  	if (IS_I830(dev))
>  		crt->base.crtc_mask = (1 << 0);
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> index 8280548..672f71c 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -2523,6 +2523,7 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
>  	intel_dig_port->max_lanes = max_lanes;
>  
>  	intel_encoder->type = INTEL_OUTPUT_UNKNOWN;
> +	intel_encoder->port = port;
>  	intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
>  	intel_encoder->cloneable = 0;
>  
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 75ac62f..e0dda78 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -5752,6 +5752,7 @@ bool intel_dp_init(struct drm_device *dev,
>  		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
>  	}
>  	intel_encoder->cloneable = 0;
> +	intel_encoder->port = port;
>  
>  	intel_dig_port->hpd_pulse = intel_dp_hpd_pulse;
>  	dev_priv->hotplug.irq_port[port] = intel_dig_port;
> diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
> index 54a9d76..3ffbd69 100644
> --- a/drivers/gpu/drm/i915/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/intel_dp_mst.c
> @@ -523,6 +523,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum
>  			 DRM_MODE_ENCODER_DPMST, "DP-MST %c", pipe_name(pipe));
>  
>  	intel_encoder->type = INTEL_OUTPUT_DP_MST;
> +	intel_encoder->port = intel_dig_port->port;
>  	intel_encoder->crtc_mask = 0x7;
>  	intel_encoder->cloneable = 0;
>  
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index abe7a4d..a26f08b 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -202,6 +202,7 @@ struct intel_encoder {
>  	struct drm_encoder base;
>  
>  	enum intel_output_type type;
> +	enum port port;
>  	unsigned int cloneable;
>  	void (*hot_plug)(struct intel_encoder *);
>  	bool (*compute_config)(struct intel_encoder *,
> diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
> index b2e3d3a..727adaa 100644
> --- a/drivers/gpu/drm/i915/intel_dsi.c
> +++ b/drivers/gpu/drm/i915/intel_dsi.c
> @@ -1488,6 +1488,7 @@ void intel_dsi_init(struct drm_device *dev)
>  
>  	intel_connector->get_hw_state = intel_connector_get_hw_state;
>  
> +	intel_encoder->port = port;
>  	/*
>  	 * On BYT/CHV, pipe A maps to MIPI DSI port A, pipe B maps to MIPI DSI
>  	 * port C. BXT isn't limited like this.
> diff --git a/drivers/gpu/drm/i915/intel_dvo.c b/drivers/gpu/drm/i915/intel_dvo.c
> index 2e452c5..0cee863 100644
> --- a/drivers/gpu/drm/i915/intel_dvo.c
> +++ b/drivers/gpu/drm/i915/intel_dvo.c
> @@ -516,7 +516,9 @@ void intel_dvo_init(struct drm_device *dev)
>  				 "DVO %c", intel_dvo_port_name(dvo->dvo_reg));
>  
>  		intel_encoder->type = INTEL_OUTPUT_DVO;
> +		intel_encoder->port = PORT_NONE;
>  		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
> +
>  		switch (dvo->type) {
>  		case INTEL_DVO_CHIP_TMDS:
>  			intel_encoder->cloneable = (1 << INTEL_OUTPUT_ANALOG) |
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> index c51073f..8d49800 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -1972,6 +1972,7 @@ void intel_hdmi_init(struct drm_device *dev,
>  	}
>  
>  	intel_encoder->type = INTEL_OUTPUT_HDMI;
> +	intel_encoder->port = port;
>  	if (IS_CHERRYVIEW(dev)) {
>  		if (port == PORT_D)
>  			intel_encoder->crtc_mask = 1 << 2;
> diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
> index e1d47d5..2e943bd 100644
> --- a/drivers/gpu/drm/i915/intel_lvds.c
> +++ b/drivers/gpu/drm/i915/intel_lvds.c
> @@ -1064,8 +1064,9 @@ void intel_lvds_init(struct drm_device *dev)
>  	intel_connector->get_hw_state = intel_connector_get_hw_state;
>  
>  	intel_connector_attach_encoder(intel_connector, intel_encoder);
> -	intel_encoder->type = INTEL_OUTPUT_LVDS;
>  
> +	intel_encoder->type = INTEL_OUTPUT_LVDS;
> +	intel_encoder->port = PORT_NONE;
>  	intel_encoder->cloneable = 0;
>  	if (HAS_PCH_SPLIT(dev))
>  		intel_encoder->crtc_mask = (1 << 0) | (1 << 1) | (1 << 2);
> diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
> index c551024..a061b00 100644
> --- a/drivers/gpu/drm/i915/intel_sdvo.c
> +++ b/drivers/gpu/drm/i915/intel_sdvo.c
> @@ -2981,6 +2981,7 @@ bool intel_sdvo_init(struct drm_device *dev,
>  	/* encoder type will be decided later */
>  	intel_encoder = &intel_sdvo->base;
>  	intel_encoder->type = INTEL_OUTPUT_SDVO;
> +	intel_encoder->port = port;
>  	drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0,
>  			 "SDVO %c", port_name(port));
>  
> diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
> index d960e48..3988c45 100644
> --- a/drivers/gpu/drm/i915/intel_tv.c
> +++ b/drivers/gpu/drm/i915/intel_tv.c
> @@ -1610,7 +1610,9 @@ intel_tv_init(struct drm_device *dev)
>  	intel_connector->get_hw_state = intel_connector_get_hw_state;
>  
>  	intel_connector_attach_encoder(intel_connector, intel_encoder);
> +
>  	intel_encoder->type = INTEL_OUTPUT_TVOUT;
> +	intel_encoder->port = PORT_NONE;
>  	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
>  	intel_encoder->cloneable = 0;
>  	intel_encoder->base.possible_crtcs = ((1 << 0) | (1 << 1));

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