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author | Lars-Peter Clausen <lars@metafoo.de> | 2012-04-25 11:42:46 +0200 |
---|---|---|
committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-04-25 11:27:53 +0100 |
commit | 8b3f39dab5e126fe5215871fe6fc4ae358ca7680 (patch) | |
tree | 9005ee36051e3b56e91e33e8bbfbb67c3f70da8b /sound/soc/codecs/ssm2602.c | |
parent | d9ca8e76f3cdbd86032808aa1af237b8a3d99eac (diff) | |
download | linux-stable-8b3f39dab5e126fe5215871fe6fc4ae358ca7680.tar.gz linux-stable-8b3f39dab5e126fe5215871fe6fc4ae358ca7680.tar.bz2 linux-stable-8b3f39dab5e126fe5215871fe6fc4ae358ca7680.zip |
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>
Diffstat (limited to 'sound/soc/codecs/ssm2602.c')
-rw-r--r-- | sound/soc/codecs/ssm2602.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c index 4c94fd211fb0..dcedd7442ec7 100644 --- a/sound/soc/codecs/ssm2602.c +++ b/sound/soc/codecs/ssm2602.c @@ -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; |