From: Guo, Bing Date: Thu, 7 Oct 2021 20:10:59 +0000 (-0400) Subject: drm/amd/display: set Layout properly for 8ch audio at timing validation X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=b8f0208858221d1ab6f9cac4302471e9a563586f;p=uclinux-h8%2Flinux.git 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 Tested-by: Daniel Wheeler Acked-by: Agustin Gutierrez Signed-off-by: Bing Guo Signed-off-by: Alex Deucher --- 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);