+++ /dev/null
-From 4ca89eb8570cb86314a5a7b55a15d15f53ce5757 Mon Sep 17 00:00:00 2001
-From: Johannes Krude <johannes@krude.de>
-Date: Sat, 16 Nov 2019 12:41:06 +0100
-Subject: [PATCH] sound/soc: only first codec is master in multicodec
- setup
-
-When using multiple codecs, at most one codec should generate the master
-clock. All codecs except the first are therefore configured for slave
-mode.
-
-Signed-off-by: Johannes Krude <johannes@krude.de>
----
- sound/soc/soc-core.c | 9 ++++++++-
- 1 file changed, 8 insertions(+), 1 deletion(-)
-
---- a/sound/soc/soc-core.c
-+++ b/sound/soc/soc-core.c
-@@ -1688,8 +1688,15 @@ int snd_soc_runtime_set_dai_fmt(struct s
-
- for (i = 0; i < rtd->num_codecs; i++) {
- struct snd_soc_dai *codec_dai = codec_dais[i];
-+ unsigned int codec_dai_fmt = dai_fmt;
-
-- ret = snd_soc_dai_set_fmt(codec_dai, dai_fmt);
-+ // there can only be one master when using multiple codecs
-+ if (i && (codec_dai_fmt & SND_SOC_DAIFMT_MASTER_MASK)) {
-+ codec_dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
-+ codec_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
-+ }
-+
-+ ret = snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
- if (ret != 0 && ret != -ENOTSUPP) {
- dev_warn(codec_dai->dev,
- "ASoC: Failed to set DAI format: %d\n", ret);