diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2013-10-11 01:54:51 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-11-01 20:43:19 +0400 |
| commit | 712fd8a2cdc4360b14546a26ce238bd99661af51 (patch) | |
| tree | 79759290df5a6515e541ee5502e23c3d416f62fc /drivers/gpu/drm/radeon/evergreen_hdmi.c | |
| parent | 8a992ee14551eae53fd3ab6c2dc8e06ba6fff174 (diff) | |
| download | linux-712fd8a2cdc4360b14546a26ce238bd99661af51.tar.xz | |
drm/radeon/audio: write audio/video latency info for DCE4/5
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>
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen_hdmi.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c index 5fbe48647ea4..abdc893318a4 100644 --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -58,6 +58,42 @@ static void evergreen_hdmi_update_ACR(struct drm_encoder *encoder, uint32_t cloc WREG32(HDMI_ACR_48_1 + offset, acr.n_48khz); } +static void dce4_afmt_write_latency_fields(struct drm_encoder *encoder, + struct drm_display_mode *mode) +{ + struct radeon_device *rdev = encoder->dev->dev_private; + struct drm_connector *connector; + struct radeon_connector *radeon_connector = NULL; + u32 tmp = 0; + + 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(AZ_F0_CODEC_PIN0_CONTROL_RESPONSE_LIPSYNC, tmp); +} + static void dce4_afmt_write_speaker_allocation(struct drm_encoder *encoder) { struct radeon_device *rdev = encoder->dev->dev_private; @@ -327,6 +363,7 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode dce6_afmt_write_sad_regs(encoder); } else { evergreen_hdmi_write_sad_regs(encoder); + dce4_afmt_write_latency_fields(encoder, mode); } err = drm_hdmi_avi_infoframe_from_display_mode(&frame, mode); |