diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/dce6_afmt.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/dce6_afmt.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/dce6_afmt.c b/drivers/gpu/drm/radeon/dce6_afmt.c index 1c870060c29b..192c80389151 100644 --- a/drivers/gpu/drm/radeon/dce6_afmt.c +++ b/drivers/gpu/drm/radeon/dce6_afmt.c @@ -287,3 +287,38 @@ void dce6_dp_audio_set_dto(struct radeon_device *rdev, WREG32(DCCG_AUDIO_DTO1_PHASE, 24000); WREG32(DCCG_AUDIO_DTO1_MODULE, clock); } + +void dce6_enable_dp_audio_packets(struct drm_encoder *encoder, bool enable) +{ + struct drm_device *dev = encoder->dev; + struct radeon_device *rdev = dev->dev_private; + struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); + struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; + uint32_t offset; + + if (!dig || !dig->afmt) + return; + + offset = dig->afmt->offset; + + if (enable) { + if (dig->afmt->enabled) + return; + + WREG32(EVERGREEN_DP_SEC_TIMESTAMP + offset, EVERGREEN_DP_SEC_TIMESTAMP_MODE(1)); + WREG32(EVERGREEN_DP_SEC_CNTL + offset, + EVERGREEN_DP_SEC_ASP_ENABLE | /* Audio packet transmission */ + EVERGREEN_DP_SEC_ATP_ENABLE | /* Audio timestamp packet transmission */ + EVERGREEN_DP_SEC_AIP_ENABLE | /* Audio infoframe packet transmission */ + EVERGREEN_DP_SEC_STREAM_ENABLE); /* Master enable for secondary stream engine */ + radeon_audio_enable(rdev, dig->afmt->pin, true); + } else { + if (!dig->afmt->enabled) + return; + + WREG32(EVERGREEN_DP_SEC_CNTL + offset, 0); + radeon_audio_enable(rdev, dig->afmt->pin, false); + } + + dig->afmt->enabled = enable; +} |