diff options
Diffstat (limited to 'sound/soc/codecs/nau8540.c')
| -rw-r--r-- | sound/soc/codecs/nau8540.c | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/sound/soc/codecs/nau8540.c b/sound/soc/codecs/nau8540.c index ace96995fedc..0626d5694c22 100644 --- a/sound/soc/codecs/nau8540.c +++ b/sound/soc/codecs/nau8540.c @@ -357,17 +357,32 @@ static const struct snd_soc_dapm_route nau8540_dapm_routes[] = { {"AIFTX", NULL, "Digital CH4 Mux"}, }; -static int nau8540_clock_check(struct nau8540 *nau8540, int rate, int osr) +static const struct nau8540_osr_attr * +nau8540_get_osr(struct nau8540 *nau8540) { + unsigned int osr; + + regmap_read(nau8540->regmap, NAU8540_REG_ADC_SAMPLE_RATE, &osr); + osr &= NAU8540_ADC_OSR_MASK; if (osr >= ARRAY_SIZE(osr_adc_sel)) - return -EINVAL; + return NULL; + return &osr_adc_sel[osr]; +} + +static int nau8540_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct nau8540 *nau8540 = snd_soc_component_get_drvdata(component); + const struct nau8540_osr_attr *osr; - if (rate * osr > CLK_ADC_MAX) { - dev_err(nau8540->dev, "exceed the maximum frequency of CLK_ADC\n"); + osr = nau8540_get_osr(nau8540); + if (!osr || !osr->osr) return -EINVAL; - } - return 0; + return snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_RATE, + 0, CLK_ADC_MAX / osr->osr); } static int nau8540_hw_params(struct snd_pcm_substream *substream, @@ -375,7 +390,8 @@ static int nau8540_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct nau8540 *nau8540 = snd_soc_component_get_drvdata(component); - unsigned int val_len = 0, osr; + unsigned int val_len = 0; + const struct nau8540_osr_attr *osr; /* CLK_ADC = OSR * FS * ADC clock frequency is defined as Over Sampling Rate (OSR) @@ -383,13 +399,14 @@ static int nau8540_hw_params(struct snd_pcm_substream *substream, * values must be selected such that the maximum frequency is less * than 6.144 MHz. */ - regmap_read(nau8540->regmap, NAU8540_REG_ADC_SAMPLE_RATE, &osr); - osr &= NAU8540_ADC_OSR_MASK; - if (nau8540_clock_check(nau8540, params_rate(params), osr)) + osr = nau8540_get_osr(nau8540); + if (!osr || !osr->osr) + return -EINVAL; + if (params_rate(params) * osr->osr > CLK_ADC_MAX) return -EINVAL; regmap_update_bits(nau8540->regmap, NAU8540_REG_CLOCK_SRC, NAU8540_CLK_ADC_SRC_MASK, - osr_adc_sel[osr].clk_src << NAU8540_CLK_ADC_SRC_SFT); + osr->clk_src << NAU8540_CLK_ADC_SRC_SFT); switch (params_width(params)) { case 16: @@ -515,6 +532,7 @@ static int nau8540_set_tdm_slot(struct snd_soc_dai *dai, static const struct snd_soc_dai_ops nau8540_dai_ops = { + .startup = nau8540_dai_startup, .hw_params = nau8540_hw_params, .set_fmt = nau8540_set_fmt, .set_tdm_slot = nau8540_set_tdm_slot, @@ -806,7 +824,6 @@ static const struct snd_soc_component_driver nau8540_component_driver = { .idle_bias_on = 1, .use_pmdown_time = 1, .endianness = 1, - .non_legacy_dai_naming = 1, }; static const struct regmap_config nau8540_regmap_config = { @@ -823,8 +840,7 @@ static const struct regmap_config nau8540_regmap_config = { .num_reg_defaults = ARRAY_SIZE(nau8540_reg_defaults), }; -static int nau8540_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static int nau8540_i2c_probe(struct i2c_client *i2c) { struct device *dev = &i2c->dev; struct nau8540 *nau8540 = dev_get_platdata(dev); @@ -874,7 +890,7 @@ static struct i2c_driver nau8540_i2c_driver = { .name = "nau8540", .of_match_table = of_match_ptr(nau8540_of_ids), }, - .probe = nau8540_i2c_probe, + .probe_new = nau8540_i2c_probe, .id_table = nau8540_i2c_ids, }; module_i2c_driver(nau8540_i2c_driver); |