diff mbox

[08/18] drm/i915: introduce intel_audio_codec_{enable, disable}

Message ID 2b3882e9b4e6b1ba9262567847ecdd7b53bfadd3.1412339886.git.jani.nikula@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jani Nikula Oct. 3, 2014, 12:43 p.m. UTC 
Introduce functions to enable/disable the audio codec, incorporating the
ELD setup within enable. The disable is initially limited to HSW,
covering exactly what was done previously.

The only functional difference is that ELD valid is no longer set if
there is no connector with ELD, which should be the right thing to do
anyway. Otherwise the sequence remains the same, with warts and all, in
preparation for applying more sanity.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h    |  7 ++--
 drivers/gpu/drm/i915/intel_audio.c | 69 +++++++++++++++++++++++++++-----------
 drivers/gpu/drm/i915/intel_ddi.c   | 17 ++--------
 drivers/gpu/drm/i915/intel_dp.c    |  2 +-
 drivers/gpu/drm/i915/intel_drv.h   |  3 +-
 drivers/gpu/drm/i915/intel_hdmi.c  |  2 +-
 6 files changed, 59 insertions(+), 41 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 1cce66a02853..091546b1837c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -483,9 +483,10 @@  struct drm_i915_display_funcs {
 	void (*crtc_enable)(struct drm_crtc *crtc);
 	void (*crtc_disable)(struct drm_crtc *crtc);
 	void (*off)(struct drm_crtc *crtc);
-	void (*write_eld)(struct drm_connector *connector,
-			  struct intel_encoder *encoder,
-			  struct drm_display_mode *mode);
+	void (*audio_codec_enable)(struct drm_connector *connector,
+				   struct intel_encoder *encoder,
+				   struct drm_display_mode *mode);
+	void (*audio_codec_disable)(struct intel_encoder *encoder);
 	void (*fdi_link_train)(struct drm_crtc *crtc);
 	void (*init_clock_gating)(struct drm_device *dev);
 	int (*queue_flip)(struct drm_device *dev, struct drm_crtc *crtc,
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index 7baac1b8d75a..2131401c0ae9 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -96,9 +96,9 @@  static bool intel_eld_uptodate(struct drm_connector *connector,
 	return true;
 }
 
-static void g4x_write_eld(struct drm_connector *connector,
-			  struct intel_encoder *encoder,
-			  struct drm_display_mode *mode)
+static void g4x_audio_codec_enable(struct drm_connector *connector,
+				   struct intel_encoder *encoder,
+				   struct drm_display_mode *mode)
 {
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
 	uint8_t *eld = connector->eld;
@@ -136,9 +136,22 @@  static void g4x_write_eld(struct drm_connector *connector,
 	I915_WRITE(G4X_AUD_CNTL_ST, tmp);
 }
 
-static void haswell_write_eld(struct drm_connector *connector,
-			      struct intel_encoder *encoder,
-			      struct drm_display_mode *mode)
+static void hsw_audio_codec_disable(struct intel_encoder *encoder)
+{
+	struct drm_device *dev = encoder->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct drm_crtc *crtc = encoder->base.crtc;
+	enum pipe pipe = to_intel_crtc(crtc)->pipe;
+	uint32_t tmp;
+
+	tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
+	tmp &= ~((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4));
+	I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp);
+}
+
+static void hsw_audio_codec_enable(struct drm_connector *connector,
+				   struct intel_encoder *encoder,
+				   struct drm_display_mode *mode)
 {
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
 	struct drm_crtc *crtc = encoder->base.crtc;
@@ -211,11 +224,16 @@  static void haswell_write_eld(struct drm_connector *connector,
 	tmp = I915_READ(aud_cntrl_st2);
 	tmp |= eldv;
 	I915_WRITE(aud_cntrl_st2, tmp);
+
+	/* XXX: Transitional */
+	tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
+	tmp |= ((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4));
+	I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp);
 }
 
-static void ironlake_write_eld(struct drm_connector *connector,
-			       struct intel_encoder *encoder,
-			       struct drm_display_mode *mode)
+static void ilk_audio_codec_enable(struct drm_connector *connector,
+				   struct intel_encoder *encoder,
+				   struct drm_display_mode *mode)
 {
 	struct drm_i915_private *dev_priv = connector->dev->dev_private;
 	struct drm_crtc *crtc = encoder->base.crtc;
@@ -303,7 +321,7 @@  static void ironlake_write_eld(struct drm_connector *connector,
 	I915_WRITE(aud_cntrl_st2, tmp);
 }
 
-void intel_write_eld(struct intel_encoder *intel_encoder)
+void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
 {
 	struct drm_encoder *encoder = &intel_encoder->base;
 	struct intel_crtc *crtc = to_intel_crtc(encoder->crtc);
@@ -329,8 +347,17 @@  void intel_write_eld(struct intel_encoder *intel_encoder)
 
 	connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
 
-	if (dev_priv->display.write_eld)
-		dev_priv->display.write_eld(connector, intel_encoder, mode);
+	if (dev_priv->display.audio_codec_enable)
+		dev_priv->display.audio_codec_enable(connector, intel_encoder, mode);
+}
+
+void intel_audio_codec_disable(struct intel_encoder *encoder)
+{
+	struct drm_device *dev = encoder->base.dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	if (dev_priv->display.audio_codec_disable)
+		dev_priv->display.audio_codec_disable(encoder);
 }
 
 /* Set up chip specific audio functions */
@@ -338,12 +365,14 @@  void intel_init_audio(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 
-	if (IS_G4X(dev))
-		dev_priv->display.write_eld = g4x_write_eld;
-	else if (IS_VALLEYVIEW(dev))
-		dev_priv->display.write_eld = ironlake_write_eld;
-	else if (IS_HASWELL(dev) || INTEL_INFO(dev)->gen >= 8)
-		dev_priv->display.write_eld = haswell_write_eld;
-	else if (HAS_PCH_SPLIT(dev))
-		dev_priv->display.write_eld = ironlake_write_eld;
+	if (IS_G4X(dev)) {
+		dev_priv->display.audio_codec_enable = g4x_audio_codec_enable;
+	} else if (IS_VALLEYVIEW(dev)) {
+		dev_priv->display.audio_codec_enable = ilk_audio_codec_enable;
+	} else if (IS_HASWELL(dev) || INTEL_INFO(dev)->gen >= 8) {
+		dev_priv->display.audio_codec_enable = hsw_audio_codec_enable;
+		dev_priv->display.audio_codec_disable = hsw_audio_codec_disable;
+	} else if (HAS_PCH_SPLIT(dev)) {
+		dev_priv->display.audio_codec_enable = ilk_audio_codec_enable;
+	}
 }
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index e6d2aee36759..ba3dccc055d4 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1186,12 +1186,10 @@  static void intel_enable_ddi(struct intel_encoder *intel_encoder)
 	struct drm_encoder *encoder = &intel_encoder->base;
 	struct drm_crtc *crtc = encoder->crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int pipe = intel_crtc->pipe;
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum port port = intel_ddi_get_encoder_port(intel_encoder);
 	int type = intel_encoder->type;
-	uint32_t tmp;
 
 	if (type == INTEL_OUTPUT_HDMI) {
 		struct intel_digital_port *intel_dig_port =
@@ -1216,11 +1214,7 @@  static void intel_enable_ddi(struct intel_encoder *intel_encoder)
 
 	if (intel_crtc->config.has_audio) {
 		intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO);
-		intel_write_eld(intel_encoder);
-
-		tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
-		tmp |= ((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) << (pipe * 4));
-		I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp);
+		intel_audio_codec_enable(intel_encoder);
 	}
 }
 
@@ -1229,19 +1223,12 @@  static void intel_disable_ddi(struct intel_encoder *intel_encoder)
 	struct drm_encoder *encoder = &intel_encoder->base;
 	struct drm_crtc *crtc = encoder->crtc;
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	int pipe = intel_crtc->pipe;
 	int type = intel_encoder->type;
 	struct drm_device *dev = encoder->dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	uint32_t tmp;
 
-	/* We can't touch HSW_AUD_PIN_ELD_CP_VLD uncionditionally because this
-	 * register is part of the power well on Haswell. */
 	if (intel_crtc->config.has_audio) {
-		tmp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
-		tmp &= ~((AUDIO_OUTPUT_ENABLE_A | AUDIO_ELD_VALID_A) <<
-			 (pipe * 4));
-		I915_WRITE(HSW_AUD_PIN_ELD_CP_VLD, tmp);
+		intel_audio_codec_disable(intel_encoder);
 		intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
 	}
 
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index b474a29d00d5..80e94def24eb 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1250,7 +1250,7 @@  static void intel_dp_prepare(struct intel_encoder *encoder)
 		DRM_DEBUG_DRIVER("Enabling DP audio on pipe %c\n",
 				 pipe_name(crtc->pipe));
 		intel_dp->DP |= DP_AUDIO_OUTPUT_ENABLE;
-		intel_write_eld(encoder);
+		intel_audio_codec_enable(encoder);
 	}
 
 	/* Split out the IBX/CPU vs CPT settings */
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3fcabe57b534..b3b608b9b72e 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -841,7 +841,8 @@  void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire);
 
 /* intel_audio.c */
 void intel_init_audio(struct drm_device *dev);
-void intel_write_eld(struct intel_encoder *encoder);
+void intel_audio_codec_enable(struct intel_encoder *encoder);
+void intel_audio_codec_disable(struct intel_encoder *encoder);
 
 /* intel_display.c */
 const char *intel_output_name(int output);
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 07b5ebd65d41..f29026a1157d 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -666,7 +666,7 @@  static void intel_hdmi_prepare(struct intel_encoder *encoder)
 		DRM_DEBUG_DRIVER("Enabling HDMI audio on pipe %c\n",
 				 pipe_name(crtc->pipe));
 		hdmi_val |= SDVO_AUDIO_ENABLE;
-		intel_write_eld(encoder);
+		intel_audio_codec_enable(encoder);
 	}
 
 	if (HAS_PCH_CPT(dev))