drm/radeon/audio: write audio/video latency info for DCE6/8
Needed by the hda driver to properly set up synchronization
on the audio side.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c
index 85a69d2..5929056 100644
--- a/drivers/gpu/drm/radeon/dce6_afmt.c
+++ b/drivers/gpu/drm/radeon/dce6_afmt.c
@@ -102,6 +102,49 @@
AFMT_AUDIO_SRC_SELECT(dig->afmt->pin->id));
}
+void dce6_afmt_write_latency_fields(struct drm_encoder *encoder,
+ struct drm_display_mode *mode)
+{
+ struct radeon_device *rdev = encoder->dev->dev_private;
+ struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
+ struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
+ struct drm_connector *connector;
+ struct radeon_connector *radeon_connector = NULL;
+ u32 tmp = 0, offset;
+
+ if (!dig->afmt->pin)
+ return;
+
+ offset = dig->afmt->pin->offset;
+
+ list_for_each_entry(connector, &encoder->dev->mode_config.connector_list, head) {
+ if (connector->encoder == encoder) {
+ radeon_connector = to_radeon_connector(connector);
+ break;
+ }
+ }
+
+ if (!radeon_connector) {
+ DRM_ERROR("Couldn't find encoder's connector\n");
+ return;
+ }
+
+ if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
+ if (connector->latency_present[1])
+ tmp = VIDEO_LIPSYNC(connector->video_latency[1]) |
+ AUDIO_LIPSYNC(connector->audio_latency[1]);
+ else
+ tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
+ } else {
+ if (connector->latency_present[0])
+ tmp = VIDEO_LIPSYNC(connector->video_latency[0]) |
+ AUDIO_LIPSYNC(connector->audio_latency[0]);
+ else
+ tmp = VIDEO_LIPSYNC(255) | AUDIO_LIPSYNC(255);
+ }
+ WREG32_ENDPOINT(offset, AZ_F0_CODEC_PIN_CONTROL_RESPONSE_LIPSYNC, tmp);
+}
+
void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder)
{
struct radeon_device *rdev = encoder->dev->dev_private;