[PATCH v3 10/10] ASoC: Intel: avs: hda: Constrain MSBs on startup

[Cezary Rojewski <cezary.rojewski@intel.com>]

Front-end DAI links are marked as dynamic for the card thus the
__soc_pcm_open() function never gets to soc_pcm_apply_msb() step which
performs MSBs-constraint rule. Do that on link startup instead.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
---
 sound/soc/intel/avs/boards/hdaudio.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/sound/soc/intel/avs/boards/hdaudio.c b/sound/soc/intel/avs/boards/hdaudio.c
index 03cfd91202d3..2e15a293298d 100644
--- a/sound/soc/intel/avs/boards/hdaudio.c
+++ b/sound/soc/intel/avs/boards/hdaudio.c
@@ -15,6 +15,22 @@
 #include "../../../codecs/hda.h"
 #include "../utils.h"
 
+static int avs_link_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	const struct snd_soc_pcm_stream *stream_info;
+	struct snd_soc_dai *codec_dai;
+
+	codec_dai = snd_soc_rtd_to_codec(rtd, 0);
+	stream_info = snd_soc_dai_get_pcm_stream(codec_dai, substream->stream);
+
+	return snd_pcm_hw_constraint_msbits(substream->runtime, 0, 0, stream_info->sig_bits);
+}
+
+static const struct snd_soc_ops avs_link_ops = {
+	.startup = avs_link_startup,
+};
+
 static int avs_create_dai_links(struct device *dev, struct hda_codec *codec, int pcm_count,
 				struct snd_soc_dai_link **links)
 {
@@ -43,6 +59,7 @@ static int avs_create_dai_links(struct device *dev, struct hda_codec *codec, int
 		dl[i].platforms = platform;
 		dl[i].num_platforms = 1;
 		dl[i].ignore_pmdown_time = 1;
+		dl[i].ops = &avs_link_ops;
 
 		dl[i].codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL);
 		dl[i].cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
-- 
2.34.1