diff options
| author | Guo, Bing <Bing.Guo@amd.com> | 2021-10-07 16:10:59 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-10-28 14:26:16 -0400 |
| commit | b8f0208858221d1ab6f9cac4302471e9a563586f (patch) | |
| tree | 40b8e3e52736364ee23e3cb18b5a334b043d6b42 | |
| parent | fbde44bcdffc4e1954b9f6f0c030bca2328cc822 (diff) | |
drm/amd/display: set Layout properly for 8ch audio at timing validation
Why:
For audio packet type 0x02, there are 2 Layouts:
Layout = 0 for 2 channels
and Layout = 1 for > 2 channels.
Layout will affect bandwidth check.
Currently, for HDMI FRL, Layout field isn't set and has a default value
of 0, so theoretically only 2-channel audio for audio packet type 0x02
is supported now.
How:
1. Set Layout properly according to maximum audio channel numbers for
audios with audio packet type 0x02.
2. 8ch LPCM audio is not supported for timing modes with v_active <= 576.
Reviewed-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Acked-by: Agustin Gutierrez <agustin.gutierrez@amd.com>
Signed-off-by: Bing Guo <Bing.Guo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_audio.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c index 7866cf2a668f..27218ede150a 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c @@ -514,13 +514,15 @@ void dce_aud_az_configure( union audio_sample_rates sample_rates = audio_mode->sample_rates; uint8_t byte2 = audio_mode->max_bit_rate; + uint8_t channel_count = audio_mode->channel_count; /* adjust specific properties */ switch (audio_format_code) { case AUDIO_FORMAT_CODE_LINEARPCM: { + check_audio_bandwidth( crtc_info, - audio_mode->channel_count, + channel_count, signal, &sample_rates); @@ -548,7 +550,7 @@ void dce_aud_az_configure( /* fill audio format data */ set_reg_field_value(value, - audio_mode->channel_count - 1, + channel_count - 1, AZALIA_F0_CODEC_PIN_CONTROL_AUDIO_DESCRIPTOR0, MAX_CHANNELS); |