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-rw-r--r--drivers/gpu/drm/i915/intel_sdvo.c48
1 files changed, 46 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index a84224f37605..c245383cf7ed 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -107,6 +107,7 @@ struct intel_sdvo {
* This is set if we treat the device as HDMI, instead of DVI.
*/
bool is_hdmi;
+ bool has_audio;
/**
* This is set if we detect output of sdvo device as LVDS and
@@ -138,11 +139,15 @@ struct intel_sdvo_connector {
/* Mark the type of connector */
uint16_t output_flag;
+ int force_audio;
+
/* This contains all current supported TV format */
u8 tv_format_supported[TV_FORMAT_NUM];
int format_supported_num;
struct drm_property *tv_format;
+ struct drm_property *force_audio_property;
+
/* add the property for the SDVO-TV */
struct drm_property *left;
struct drm_property *right;
@@ -1150,7 +1155,7 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
}
if (intel_crtc->pipe == 1)
sdvox |= SDVO_PIPE_B_SELECT;
- if (intel_sdvo->is_hdmi)
+ if (intel_sdvo->has_audio)
sdvox |= SDVO_AUDIO_ENABLE;
if (INTEL_INFO(dev)->gen >= 4) {
@@ -1476,11 +1481,18 @@ intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
if (edid->input & DRM_EDID_INPUT_DIGITAL) {
status = connector_status_connected;
intel_sdvo->is_hdmi = drm_detect_hdmi_monitor(edid);
+ intel_sdvo->has_audio = drm_detect_monitor_audio(edid);
}
connector->display_info.raw_edid = NULL;
kfree(edid);
}
-
+
+ if (status == connector_status_connected) {
+ struct intel_sdvo_connector *intel_sdvo_connector = to_intel_sdvo_connector(connector);
+ if (intel_sdvo_connector->force_audio)
+ intel_sdvo->has_audio = intel_sdvo_connector->force_audio > 0;
+ }
+
return status;
}
@@ -1787,6 +1799,21 @@ intel_sdvo_set_property(struct drm_connector *connector,
if (ret)
return ret;
+ if (property == intel_sdvo_connector->force_audio_property) {
+ if (val == intel_sdvo_connector->force_audio)
+ return 0;
+
+ intel_sdvo_connector->force_audio = val;
+
+ if (val > 0 && intel_sdvo->has_audio)
+ return 0;
+ if (val < 0 && !intel_sdvo->has_audio)
+ return 0;
+
+ intel_sdvo->has_audio = val > 0;
+ goto done;
+ }
+
#define CHECK_PROPERTY(name, NAME) \
if (intel_sdvo_connector->name == property) { \
if (intel_sdvo_connector->cur_##name == temp_value) return 0; \
@@ -2078,6 +2105,21 @@ intel_sdvo_connector_init(struct intel_sdvo_connector *connector,
drm_sysfs_connector_add(&connector->base.base);
}
+static void
+intel_sdvo_add_hdmi_properties(struct intel_sdvo_connector *connector)
+{
+ struct drm_device *dev = connector->base.base.dev;
+
+ connector->force_audio_property =
+ drm_property_create(dev, DRM_MODE_PROP_RANGE, "force_audio", 2);
+ if (connector->force_audio_property) {
+ connector->force_audio_property->values[0] = -1;
+ connector->force_audio_property->values[1] = 1;
+ drm_connector_attach_property(&connector->base.base,
+ connector->force_audio_property, 0);
+ }
+}
+
static bool
intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
{
@@ -2118,6 +2160,8 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo);
+ intel_sdvo_add_hdmi_properties(intel_sdvo_connector);
+
return true;
}