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path: root/drivers/gpu/drm/i915/intel_dp.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
-rw-r--r--drivers/gpu/drm/i915/intel_dp.c36
1 files changed, 30 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 1f4242b..51cb4e3 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1639,6 +1639,24 @@ static int intel_dp_get_modes(struct drm_connector *connector)
return 0;
}
+static bool
+intel_dp_detect_audio(struct drm_connector *connector)
+{
+ struct intel_dp *intel_dp = intel_attached_dp(connector);
+ struct edid *edid;
+ bool has_audio = false;
+
+ edid = drm_get_edid(connector, &intel_dp->adapter);
+ if (edid) {
+ has_audio = drm_detect_monitor_audio(edid);
+
+ connector->display_info.raw_edid = NULL;
+ kfree(edid);
+ }
+
+ return has_audio;
+}
+
static int
intel_dp_set_property(struct drm_connector *connector,
struct drm_property *property,
@@ -1652,17 +1670,23 @@ intel_dp_set_property(struct drm_connector *connector,
return ret;
if (property == intel_dp->force_audio_property) {
- if (val == intel_dp->force_audio)
+ int i = val;
+ bool has_audio;
+
+ if (i == intel_dp->force_audio)
return 0;
- intel_dp->force_audio = val;
+ intel_dp->force_audio = i;
- if (val > 0 && intel_dp->has_audio)
- return 0;
- if (val < 0 && !intel_dp->has_audio)
+ if (i == 0)
+ has_audio = intel_dp_detect_audio(connector);
+ else
+ has_audio = i > 0;
+
+ if (has_audio == intel_dp->has_audio)
return 0;
- intel_dp->has_audio = val > 0;
+ intel_dp->has_audio = has_audio;
goto done;
}