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Commit 8b3f39da authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Mark Brown
Browse files

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: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent d9ca8e76

sound/soc/codecs/ssm2602.c

+34 −4
Original line number Diff line number Diff line
@@ -53,6 +53,7 @@ enum ssm2602_type { 
/* codec private data */

struct ssm2602_priv {

	unsigned int sysclk;

	struct snd_pcm_hw_constraint_list *sysclk_constraints;

	enum snd_soc_control_type control_type;

	struct snd_pcm_substream *master_substream;

	struct snd_pcm_substream *slave_substream;
@@ -195,6 +196,24 @@ static const struct snd_soc_dapm_route ssm2604_routes[] = { 
	{"ADC", NULL, "Line Input"},

};



static const unsigned int ssm2602_rates_12288000[] = {

	8000, 32000, 48000, 96000,

};



static struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {

	.list = ssm2602_rates_12288000,

	.count = ARRAY_SIZE(ssm2602_rates_12288000),

};



static const unsigned int ssm2602_rates_11289600[] = {

	8000, 44100, 88200,

};



static struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {

	.list = ssm2602_rates_11289600,

	.count = ARRAY_SIZE(ssm2602_rates_11289600),

};



struct ssm2602_coeff {

	u32 mclk;

	u32 rate;
@@ -320,6 +339,12 @@ static int ssm2602_startup(struct snd_pcm_substream *substream, 
	} else

		ssm2602->master_substream = substream;



	if (ssm2602->sysclk_constraints) {

		snd_pcm_hw_constraint_list(substream->runtime, 0,

				   SNDRV_PCM_HW_PARAM_RATE,

				   ssm2602->sysclk_constraints);

	}



	return 0;

}
@@ -361,16 +386,21 @@ static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai, 
			return -EINVAL;



		switch (freq) {

		case 11289600:

		case 12000000:

		case 12288000:

		case 16934400:

		case 18432000:

			ssm2602->sysclk = freq;

			ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;

			break;

		case 11289600:

		case 16934400:

			ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;

			break;

		case 12000000:

			ssm2602->sysclk_constraints = NULL;

			break;

		default:

			return -EINVAL;

		}

		ssm2602->sysclk = freq;

	} else {

		unsigned int mask;