redonkable/alistair23-linux
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ASoC: rsnd: remove 16ch support for now

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R-Car Gen3 sound device can use TDM 16ch, but its usage is very
limited. It is not yet supported.
Let's remove unexpected/unsupported channel settings for now.
This patch makes xx_ADINR register settings sanity without
runtime check.

R-Car Gen3 datasheet

40.4.7 Note on Usage of the SSIU Module
When an SSIU module is used in "TDM-16ch mode",
only the transfer with the external memory is available.

Reported-by: Nguyen Viet Dung <dung.nguyen.aj@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2017-08-09 01:46:23 +00:00 committed by Mark Brown
parent 597b046f0d
commit 29d03ff5c7
1 changed files with 3 additions and 4 deletions
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7
sound/soc/sh/rcar/core.c
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@ -726,7 +726,6 @@ static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
case 2:
case 6:
case 8:
case 16:
/* TDM Extend Mode */
rsnd_rdai_channels_set(rdai, slots);
rsnd_rdai_ssi_lane_set(rdai, 1);
@ -740,7 +739,7 @@ static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
}
static unsigned int rsnd_soc_hw_channels_list[] = {
2, 6, 8, 16,
2, 6, 8,
};
static unsigned int rsnd_soc_hw_rate_list[] = {
@ -1017,7 +1016,7 @@ static void __rsnd_dai_probe(struct rsnd_priv *priv,
drv->playback.rates = RSND_RATES;
drv->playback.formats = RSND_FMTS;
drv->playback.channels_min = 2;
drv->playback.channels_max = 16;
drv->playback.channels_max = 8;
drv->playback.stream_name = rdai->playback.name;
snprintf(rdai->capture.name, RSND_DAI_NAME_SIZE,
@ -1025,7 +1024,7 @@ static void __rsnd_dai_probe(struct rsnd_priv *priv,
drv->capture.rates = RSND_RATES;
drv->capture.formats = RSND_FMTS;
drv->capture.channels_min = 2;
drv->capture.channels_max = 16;
drv->capture.channels_max = 8;
drv->capture.stream_name = rdai->capture.name;
rdai->playback.rdai = rdai;