ASoC: SSM2602: Add sysclk based rate constraints
Not all advertised rates are available for all sysclk frequencies. Add additional sysclk based rate constraints. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -53,6 +53,7 @@ enum ssm2602_type {
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/* codec private data */
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struct ssm2602_priv {
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unsigned int sysclk;
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struct snd_pcm_hw_constraint_list *sysclk_constraints;
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enum snd_soc_control_type control_type;
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struct snd_pcm_substream *master_substream;
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struct snd_pcm_substream *slave_substream;
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@ -195,6 +196,24 @@ static const struct snd_soc_dapm_route ssm2604_routes[] = {
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{"ADC", NULL, "Line Input"},
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};
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static const unsigned int ssm2602_rates_12288000[] = {
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8000, 32000, 48000, 96000,
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};
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static struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
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.list = ssm2602_rates_12288000,
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.count = ARRAY_SIZE(ssm2602_rates_12288000),
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};
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static const unsigned int ssm2602_rates_11289600[] = {
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8000, 44100, 88200,
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};
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static struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
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.list = ssm2602_rates_11289600,
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.count = ARRAY_SIZE(ssm2602_rates_11289600),
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};
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struct ssm2602_coeff {
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u32 mclk;
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u32 rate;
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@ -320,6 +339,12 @@ static int ssm2602_startup(struct snd_pcm_substream *substream,
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} else
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ssm2602->master_substream = substream;
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if (ssm2602->sysclk_constraints) {
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snd_pcm_hw_constraint_list(substream->runtime, 0,
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SNDRV_PCM_HW_PARAM_RATE,
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ssm2602->sysclk_constraints);
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}
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return 0;
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}
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@ -361,16 +386,21 @@ static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
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return -EINVAL;
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switch (freq) {
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case 11289600:
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case 12000000:
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case 12288000:
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case 16934400:
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case 18432000:
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ssm2602->sysclk = freq;
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ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
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break;
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case 11289600:
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case 16934400:
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ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
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break;
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case 12000000:
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ssm2602->sysclk_constraints = NULL;
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break;
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default:
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return -EINVAL;
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}
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ssm2602->sysclk = freq;
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} else {
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unsigned int mask;
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