1 files changed, 33 insertions, 12 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.c b/drivers/gpu/drm/i915/display/intel_sdvo.c
index 21805c15d5eb..e12ba458636c 100644
--- a/drivers/gpu/drm/i915/display/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/display/intel_sdvo.c
@@ -39,6 +39,7 @@
 #include "i915_drv.h"
 #include "i915_reg.h"
 #include "intel_atomic.h"
+#include "intel_audio.h"
 #include "intel_connector.h"
 #include "intel_crtc.h"
 #include "intel_de.h"
@@ -1068,7 +1069,8 @@ static ssize_t intel_sdvo_read_infoframe(struct intel_sdvo *intel_sdvo,
 				  &tx_rate, 1))
 		return -ENXIO;
 
-	if (tx_rate == SDVO_HBUF_TX_DISABLED)
+	/* TX_DISABLED doesn't mean disabled for ELD */
+	if (if_index != SDVO_HBUF_INDEX_ELD && tx_rate == SDVO_HBUF_TX_DISABLED)
 		return 0;
 
 	if (!intel_sdvo_get_hbuf_size(intel_sdvo, &hbuf_size))
@@ -1185,6 +1187,28 @@ static void intel_sdvo_get_avi_infoframe(struct intel_sdvo *intel_sdvo,
 			      frame->any.type, HDMI_INFOFRAME_TYPE_AVI);
 }
 
+static void intel_sdvo_get_eld(struct intel_sdvo *intel_sdvo,
+			       struct intel_crtc_state *crtc_state)
+{
+	struct drm_i915_private *i915 = to_i915(intel_sdvo->base.base.dev);
+	ssize_t len;
+	u8 val;
+
+	if (!crtc_state->has_audio)
+		return;
+
+	if (!intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_AUDIO_STAT, &val, 1))
+		return;
+
+	if ((val & SDVO_AUDIO_ELD_VALID) == 0)
+		return;
+
+	len = intel_sdvo_read_infoframe(intel_sdvo, SDVO_HBUF_INDEX_ELD,
+					crtc_state->eld, sizeof(crtc_state->eld));
+	if (len < 0)
+		drm_dbg_kms(&i915->drm, "failed to read ELD\n");
+}
+
 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo,
 				     const struct drm_connector_state *conn_state)
 {
@@ -1378,7 +1402,9 @@ static int intel_sdvo_compute_config(struct intel_encoder *encoder,
 
 	pipe_config->has_hdmi_sink = intel_has_hdmi_sink(intel_sdvo, conn_state);
 
-	pipe_config->has_audio = intel_sdvo_has_audio(encoder, pipe_config, conn_state);
+	pipe_config->has_audio =
+		intel_sdvo_has_audio(encoder, pipe_config, conn_state) &&
+		intel_audio_compute_config(encoder, pipe_config, conn_state);
 
 	pipe_config->limited_color_range =
 		intel_sdvo_limited_color_range(encoder, pipe_config,
@@ -1729,9 +1755,7 @@ static void intel_sdvo_get_config(struct intel_encoder *encoder,
 
 	if (intel_sdvo_get_value(intel_sdvo, SDVO_CMD_GET_AUDIO_STAT,
 				 &val, 1)) {
-		u8 mask = SDVO_AUDIO_ELD_VALID | SDVO_AUDIO_PRESENCE_DETECT;
-
-		if ((val & mask) == mask)
+		if (val & SDVO_AUDIO_PRESENCE_DETECT)
 			pipe_config->has_audio = true;
 	}
 
@@ -1742,6 +1766,8 @@ static void intel_sdvo_get_config(struct intel_encoder *encoder,
 	}
 
 	intel_sdvo_get_avi_infoframe(intel_sdvo, pipe_config);
+
+	intel_sdvo_get_eld(intel_sdvo, pipe_config);
 }
 
 static void intel_sdvo_disable_audio(struct intel_sdvo *intel_sdvo)
@@ -1753,12 +1779,7 @@ static void intel_sdvo_enable_audio(struct intel_sdvo *intel_sdvo,
 				    const struct intel_crtc_state *crtc_state,
 				    const struct drm_connector_state *conn_state)
 {
-	const struct drm_display_mode *adjusted_mode =
-		&crtc_state->hw.adjusted_mode;
-	struct drm_connector *connector = conn_state->connector;
-	u8 *eld = connector->eld;
-
-	eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2;
+	const u8 *eld = crtc_state->eld;
 
 	intel_sdvo_set_audio_state(intel_sdvo, 0);
 
@@ -2903,7 +2924,7 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, u16 type)
 		mutex_unlock(&i915->drm.mode_config.mutex);
 	}
 
-	intel_panel_init(intel_connector);
+	intel_panel_init(intel_connector, NULL);
 
 	if (!intel_panel_preferred_fixed_mode(intel_connector))
 		goto err;