1 files changed, 37 insertions, 7 deletions

diff --git a/drivers/gpu/drm/i915/display/g4x_dp.c b/drivers/gpu/drm/i915/display/g4x_dp.c
index e8ee0a089..06ec04e66 100644
--- a/drivers/gpu/drm/i915/display/g4x_dp.c
+++ b/drivers/gpu/drm/i915/display/g4x_dp.c
@@ -432,7 +432,7 @@ intel_dp_link_down(struct intel_encoder *encoder,
 	intel_de_write(dev_priv, intel_dp->output_reg, intel_dp->DP);
 	intel_de_posting_read(dev_priv, intel_dp->output_reg);
 
-	intel_dp->DP &= ~(DP_PORT_EN | DP_AUDIO_OUTPUT_ENABLE);
+	intel_dp->DP &= ~DP_PORT_EN;
 	intel_de_write(dev_priv, intel_dp->output_reg, intel_dp->DP);
 	intel_de_posting_read(dev_priv, intel_dp->output_reg);
 
@@ -475,6 +475,40 @@ intel_dp_link_down(struct intel_encoder *encoder,
 	}
 }
 
+static void g4x_dp_audio_enable(struct intel_encoder *encoder,
+				const struct intel_crtc_state *crtc_state,
+				const struct drm_connector_state *conn_state)
+{
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+	if (!crtc_state->has_audio)
+		return;
+
+	/* Enable audio presence detect */
+	intel_dp->DP |= DP_AUDIO_OUTPUT_ENABLE;
+	intel_de_write(i915, intel_dp->output_reg, intel_dp->DP);
+
+	intel_audio_codec_enable(encoder, crtc_state, conn_state);
+}
+
+static void g4x_dp_audio_disable(struct intel_encoder *encoder,
+				 const struct intel_crtc_state *old_crtc_state,
+				 const struct drm_connector_state *old_conn_state)
+{
+	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+	if (!old_crtc_state->has_audio)
+		return;
+
+	intel_audio_codec_disable(encoder, old_crtc_state, old_conn_state);
+
+	/* Disable audio presence detect */
+	intel_dp->DP &= ~DP_AUDIO_OUTPUT_ENABLE;
+	intel_de_write(i915, intel_dp->output_reg, intel_dp->DP);
+}
+
 static void intel_disable_dp(struct intel_atomic_state *state,
 			     struct intel_encoder *encoder,
 			     const struct intel_crtc_state *old_crtc_state,
@@ -484,8 +518,6 @@ static void intel_disable_dp(struct intel_atomic_state *state,
 
 	intel_dp->link_trained = false;
 
-	intel_audio_codec_disable(encoder, old_crtc_state, old_conn_state);
-
 	/*
 	 * Make sure the panel is off before trying to change the mode.
 	 * But also ensure that we have vdd while we switch off the panel.
@@ -631,8 +663,6 @@ static void intel_dp_enable_port(struct intel_dp *intel_dp,
 	 * fail when the power sequencer is freshly used for this port.
 	 */
 	intel_dp->DP |= DP_PORT_EN;
-	if (crtc_state->has_audio)
-		intel_dp->DP |= DP_AUDIO_OUTPUT_ENABLE;
 
 	intel_de_write(dev_priv, intel_dp->output_reg, intel_dp->DP);
 	intel_de_posting_read(dev_priv, intel_dp->output_reg);
@@ -686,7 +716,6 @@ static void g4x_enable_dp(struct intel_atomic_state *state,
 			  const struct drm_connector_state *conn_state)
 {
 	intel_enable_dp(state, encoder, pipe_config, conn_state);
-	intel_audio_codec_enable(encoder, pipe_config, conn_state);
 	intel_edp_backlight_on(pipe_config, conn_state);
 }
 
@@ -695,7 +724,6 @@ static void vlv_enable_dp(struct intel_atomic_state *state,
 			  const struct intel_crtc_state *pipe_config,
 			  const struct drm_connector_state *conn_state)
 {
-	intel_audio_codec_enable(encoder, pipe_config, conn_state);
 	intel_edp_backlight_on(pipe_config, conn_state);
 }
 
@@ -1325,6 +1353,8 @@ bool g4x_dp_init(struct drm_i915_private *dev_priv,
 		intel_encoder->disable = g4x_disable_dp;
 		intel_encoder->post_disable = g4x_post_disable_dp;
 	}
+	intel_encoder->audio_enable = g4x_dp_audio_enable;
+	intel_encoder->audio_disable = g4x_dp_audio_disable;
 
 	if ((IS_IVYBRIDGE(dev_priv) && port == PORT_A) ||
 	    (HAS_PCH_CPT(dev_priv) && port != PORT_A))