From 28785f548d18e6d52785a1172e5c176784ce74cd Mon Sep 17 00:00:00 2001 From: Sia Jee Heng Date: Thu, 4 Feb 2021 09:42:55 +0800 Subject: ASoC: codec: hdmi-codec: Support IEC958 encoded PCM format Existing hdmi-codec driver only support standard pcm format. Support of IEC958 encoded format pass from ALSA IEC958 plugin is needed so that the IEC958 encoded data can be streamed to the HDMI chip. Signed-off-by: Sia Jee Heng Link: https://lore.kernel.org/r/20210204014258.10197-2-jee.heng.sia@intel.com Signed-off-by: Mark Brown --- include/sound/hdmi-codec.h | 5 +++++ sound/soc/codecs/hdmi-codec.c | 4 +++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/include/sound/hdmi-codec.h b/include/sound/hdmi-codec.h index b55970859a13..4b3a1d374b90 100644 --- a/include/sound/hdmi-codec.h +++ b/include/sound/hdmi-codec.h @@ -34,6 +34,11 @@ struct hdmi_codec_daifmt { unsigned int frame_clk_inv:1; unsigned int bit_clk_master:1; unsigned int frame_clk_master:1; + /* bit_fmt could be standard PCM format or + * IEC958 encoded format. ALSA IEC958 plugin will pass + * IEC958_SUBFRAME format to the underneath driver. + */ + snd_pcm_format_t bit_fmt; }; /* diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c index 0f3ac22f2cf8..422539f933de 100644 --- a/sound/soc/codecs/hdmi-codec.c +++ b/sound/soc/codecs/hdmi-codec.c @@ -489,6 +489,7 @@ static int hdmi_codec_hw_params(struct snd_pcm_substream *substream, hp.sample_rate = params_rate(params); hp.channels = params_channels(params); + cf->bit_fmt = params_format(params); return hcp->hcd.ops->hw_params(dai->dev->parent, hcp->hcd.data, cf, &hp); } @@ -617,7 +618,8 @@ static const struct snd_soc_dai_ops hdmi_codec_spdif_dai_ops = { SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE |\ SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE |\ SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE |\ - SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE) + SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE |\ + SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai) -- cgit v1.2.3