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drm/radeon: only check the sink type on DP connectors 

Avoids a crash on pre-DP asics that support HDMI.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher 2015-06-30 09:30:01 -04:00
parent fc220f6580
commit 479e9a9512
1 changed files with 9 additions and 9 deletions
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18
drivers/gpu/drm/radeon/radeon_audio.c
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@ -469,22 +469,22 @@ void radeon_audio_detect(struct drm_connector *connector,
dig = radeon_encoder->enc_priv;
if (status == connector_status_connected) {
struct radeon_connector *radeon_connector;
int sink_type;
if (!drm_detect_monitor_audio(radeon_connector_edid(connector))) {
radeon_encoder->audio = NULL;
return;
}
radeon_connector = to_radeon_connector(connector);
sink_type = radeon_dp_getsinktype(radeon_connector);
if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
struct radeon_connector *radeon_connector = to_radeon_connector(connector);
if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT)
radeon_encoder->audio = rdev->audio.dp_funcs;
else
if (radeon_dp_getsinktype(radeon_connector) ==
CONNECTOR_OBJECT_ID_DISPLAYPORT)
radeon_encoder->audio = rdev->audio.dp_funcs;
else
radeon_encoder->audio = rdev->audio.hdmi_funcs;
} else {
radeon_encoder->audio = rdev->audio.hdmi_funcs;
}
dig->afmt->pin = radeon_audio_get_pin(connector->encoder);
radeon_audio_enable(rdev, dig->afmt->pin, 0xf);