From: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx> ALSA's iec958 plugin by default sets the block start preamble to 8, whilst this driver was programming the hardware to expect 0xF. Amend the hardware config to match ALSA. Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx> --- drivers/gpu/drm/vc4/vc4_hdmi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index dcac5e77d2ab..afa71580bfce 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -754,10 +754,11 @@ static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, vc4_hdmi_audio_set_mai_clock(vc4_hdmi); + /* The B frame identifier should match the value used by alsa-lib (8) */ audio_packet_config = VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_SAMPLE_FLAT | VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_INACTIVE_CHANNELS | - VC4_SET_FIELD(0xf, VC4_HDMI_AUDIO_PACKET_B_FRAME_IDENTIFIER); + VC4_SET_FIELD(0x8, VC4_HDMI_AUDIO_PACKET_B_FRAME_IDENTIFIER); channel_mask = GENMASK(vc4_hdmi->audio.channels - 1, 0); audio_packet_config |= VC4_SET_FIELD(channel_mask, -- git-series 0.9.1 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
