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ASoC: soc-pcm: add soc_pcm_hw_update_chan() 

We have soc_pcm_hw_update_rate() now.
This patch creates same function for chan.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/87r1lw90oo.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto 2021-02-04 08:51:49 +09:00 committed by Mark Brown
parent f6c04af5dc
commit 6cb56a4549
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 19 additions and 20 deletions
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39
sound/soc/soc-pcm.c
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@ -478,6 +478,8 @@ static void soc_pcm_hw_init(struct snd_pcm_hardware *hw)
hw->rates = UINT_MAX;
hw->rate_min = 0;
hw->rate_max = UINT_MAX;
hw->channels_min = 0;
hw->channels_max = UINT_MAX;
}
static void soc_pcm_hw_update_rate(struct snd_pcm_hardware *hw,
@ -493,6 +495,13 @@ static void soc_pcm_hw_update_rate(struct snd_pcm_hardware *hw,
hw->rate_max = min_not_zero(hw->rate_max, p->rate_max);
}
static void soc_pcm_hw_update_chan(struct snd_pcm_hardware *hw,
struct snd_soc_pcm_stream *p)
{
hw->channels_min = max(hw->channels_min, p->channels_min);
hw->channels_max = min(hw->channels_max, p->channels_max);
}
/**
* snd_soc_runtime_calc_hw() - Calculate hw limits for a PCM stream
* @rtd: ASoC PCM runtime
@ -509,7 +518,6 @@ int snd_soc_runtime_calc_hw(struct snd_soc_pcm_runtime *rtd,
struct snd_soc_dai *cpu_dai;
struct snd_soc_pcm_stream *codec_stream;
struct snd_soc_pcm_stream *cpu_stream;
unsigned int chan_min = 0, chan_max = UINT_MAX;
unsigned int cpu_chan_min = 0, cpu_chan_max = UINT_MAX;
u64 formats = ULLONG_MAX;
int i;
@ -530,11 +538,12 @@ int snd_soc_runtime_calc_hw(struct snd_soc_pcm_runtime *rtd,
cpu_stream = snd_soc_dai_get_pcm_stream(cpu_dai, stream);
cpu_chan_min = max(cpu_chan_min, cpu_stream->channels_min);
cpu_chan_max = min(cpu_chan_max, cpu_stream->channels_max);
soc_pcm_hw_update_chan(hw, cpu_stream);
soc_pcm_hw_update_rate(hw, cpu_stream);
formats &= cpu_stream->formats;
}
cpu_chan_min = hw->channels_min;
cpu_chan_max = hw->channels_max;
/* second calculate min/max only for CODECs in the DAI link */
for_each_rtd_codec_dais(rtd, i, codec_dai) {
@ -550,14 +559,13 @@ int snd_soc_runtime_calc_hw(struct snd_soc_pcm_runtime *rtd,
codec_stream = snd_soc_dai_get_pcm_stream(codec_dai, stream);
chan_min = max(chan_min, codec_stream->channels_min);
chan_max = min(chan_max, codec_stream->channels_max);
soc_pcm_hw_update_chan(hw, codec_stream);
soc_pcm_hw_update_rate(hw, codec_stream);
formats &= codec_stream->formats;
}
/* Verify both a valid CPU DAI and a valid CODEC DAI were found */
if (!chan_min || !cpu_chan_min)
if (!hw->channels_min)
return -EINVAL;
/*
@ -566,13 +574,11 @@ int snd_soc_runtime_calc_hw(struct snd_soc_pcm_runtime *rtd,
* channel allocation be fixed up later
*/
if (rtd->num_codecs > 1) {
chan_min = cpu_chan_min;
chan_max = cpu_chan_max;
hw->channels_min = cpu_chan_min;
hw->channels_max = cpu_chan_max;
}
/* finally find a intersection between CODECs and CPUs */
hw->channels_min = max(chan_min, cpu_chan_min);
hw->channels_max = min(chan_max, cpu_chan_max);
hw->formats = formats;
return 0;
@ -1523,8 +1529,7 @@ static void dpcm_init_runtime_hw(struct snd_pcm_runtime *runtime,
struct snd_pcm_hardware *hw = &runtime->hw;
soc_pcm_hw_update_rate(hw, stream);
runtime->hw.channels_min = stream->channels_min;
runtime->hw.channels_max = stream->channels_max;
soc_pcm_hw_update_chan(hw, stream);
if (runtime->hw.formats)
runtime->hw.formats &= stream->formats;
else
@ -1601,10 +1606,7 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream,
cpu_stream = snd_soc_dai_get_pcm_stream(dai, stream);
hw->channels_min = max(hw->channels_min,
cpu_stream->channels_min);
hw->channels_max = min(hw->channels_max,
cpu_stream->channels_max);
soc_pcm_hw_update_chan(hw, cpu_stream);
}
/*
@ -1614,10 +1616,7 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream,
if (be->num_codecs == 1) {
codec_stream = snd_soc_dai_get_pcm_stream(asoc_rtd_to_codec(be, 0), stream);
hw->channels_min = max(hw->channels_min,
codec_stream->channels_min);
hw->channels_max = min(hw->channels_max,
codec_stream->channels_max);
soc_pcm_hw_update_chan(hw, codec_stream);
}
}
}