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UPSTREAM: ASoC: codec: hdmi-codec: Support IEC958 encoded PCM format

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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.

Bug: 239396464
Change-Id: I01516e34605e380995b5312273035a0d000d36f1
Signed-off-by: Sia Jee Heng <jee.heng.sia@intel.com>
Link: https://lore.kernel.org/r/20210204014258.10197-2-jee.heng.sia@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
(cherry picked from commit 28785f548d)
This commit is contained in:
Sia Jee Heng 2021-02-04 09:42:55 +08:00 • committed by Todd Kjos
commit 49e502f0c0
2 changed files with 8 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

5
include/sound/hdmi-codec.h
View file

@ -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;
};
/*

4
sound/soc/codecs/hdmi-codec.c
View file

@ -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)