diff options
Diffstat (limited to 'sound/soc/codecs/nau8824.c')
| -rw-r--r-- | sound/soc/codecs/nau8824.c | 80 |
1 files changed, 46 insertions, 34 deletions
diff --git a/sound/soc/codecs/nau8824.c b/sound/soc/codecs/nau8824.c index ad54d70f7d8e..15596452ca37 100644 --- a/sound/soc/codecs/nau8824.c +++ b/sound/soc/codecs/nau8824.c @@ -1014,27 +1014,42 @@ static irqreturn_t nau8824_interrupt(int irq, void *data) return IRQ_HANDLED; } -static int nau8824_clock_check(struct nau8824 *nau8824, - int stream, int rate, int osr) +static const struct nau8824_osr_attr * +nau8824_get_osr(struct nau8824 *nau8824, int stream) { - int osrate; + unsigned int osr; if (stream == SNDRV_PCM_STREAM_PLAYBACK) { + regmap_read(nau8824->regmap, + NAU8824_REG_DAC_FILTER_CTRL_1, &osr); + osr &= NAU8824_DAC_OVERSAMPLE_MASK; if (osr >= ARRAY_SIZE(osr_dac_sel)) - return -EINVAL; - osrate = osr_dac_sel[osr].osr; + return NULL; + return &osr_dac_sel[osr]; } else { + regmap_read(nau8824->regmap, + NAU8824_REG_ADC_FILTER_CTRL, &osr); + osr &= NAU8824_ADC_SYNC_DOWN_MASK; if (osr >= ARRAY_SIZE(osr_adc_sel)) - return -EINVAL; - osrate = osr_adc_sel[osr].osr; + return NULL; + return &osr_adc_sel[osr]; } +} + +static int nau8824_dai_startup(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component); + const struct nau8824_osr_attr *osr; - if (!osrate || rate * osr > CLK_DA_AD_MAX) { - dev_err(nau8824->dev, "exceed the maximum frequency of CLK_ADC or CLK_DAC\n"); + osr = nau8824_get_osr(nau8824, substream->stream); + if (!osr || !osr->osr) return -EINVAL; - } - return 0; + return snd_pcm_hw_constraint_minmax(substream->runtime, + SNDRV_PCM_HW_PARAM_RATE, + 0, CLK_DA_AD_MAX / osr->osr); } static int nau8824_hw_params(struct snd_pcm_substream *substream, @@ -1042,7 +1057,9 @@ static int nau8824_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_component *component = dai->component; struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component); - unsigned int val_len = 0, osr, ctrl_val, bclk_fs, bclk_div; + unsigned int val_len = 0, ctrl_val, bclk_fs, bclk_div; + const struct nau8824_osr_attr *osr; + int err = -EINVAL; nau8824_sema_acquire(nau8824, HZ); @@ -1053,27 +1070,19 @@ static int nau8824_hw_params(struct snd_pcm_substream *substream, * than 6.144 MHz. */ nau8824->fs = params_rate(params); - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - regmap_read(nau8824->regmap, - NAU8824_REG_DAC_FILTER_CTRL_1, &osr); - osr &= NAU8824_DAC_OVERSAMPLE_MASK; - if (nau8824_clock_check(nau8824, substream->stream, - nau8824->fs, osr)) - return -EINVAL; + osr = nau8824_get_osr(nau8824, substream->stream); + if (!osr || !osr->osr) + goto error; + if (nau8824->fs * osr->osr > CLK_DA_AD_MAX) + goto error; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER, NAU8824_CLK_DAC_SRC_MASK, - osr_dac_sel[osr].clk_src << NAU8824_CLK_DAC_SRC_SFT); - } else { - regmap_read(nau8824->regmap, - NAU8824_REG_ADC_FILTER_CTRL, &osr); - osr &= NAU8824_ADC_SYNC_DOWN_MASK; - if (nau8824_clock_check(nau8824, substream->stream, - nau8824->fs, osr)) - return -EINVAL; + osr->clk_src << NAU8824_CLK_DAC_SRC_SFT); + else regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER, NAU8824_CLK_ADC_SRC_MASK, - osr_adc_sel[osr].clk_src << NAU8824_CLK_ADC_SRC_SFT); - } + osr->clk_src << NAU8824_CLK_ADC_SRC_SFT); /* make BCLK and LRC divde configuration if the codec as master. */ regmap_read(nau8824->regmap, @@ -1090,7 +1099,7 @@ static int nau8824_hw_params(struct snd_pcm_substream *substream, else if (bclk_fs <= 256) bclk_div = 0; else - return -EINVAL; + goto error; regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_2, NAU8824_I2S_LRC_DIV_MASK | NAU8824_I2S_BLK_DIV_MASK, @@ -1111,15 +1120,17 @@ static int nau8824_hw_params(struct snd_pcm_substream *substream, val_len |= NAU8824_I2S_DL_32; break; default: - return -EINVAL; + goto error; } regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1, NAU8824_I2S_DL_MASK, val_len); + err = 0; + error: nau8824_sema_release(nau8824); - return 0; + return err; } static int nau8824_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) @@ -1128,8 +1139,6 @@ static int nau8824_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component); unsigned int ctrl1_val = 0, ctrl2_val = 0; - nau8824_sema_acquire(nau8824, HZ); - switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBM_CFM: ctrl2_val |= NAU8824_I2S_MS_MASTER; @@ -1171,6 +1180,8 @@ static int nau8824_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) return -EINVAL; } + nau8824_sema_acquire(nau8824, HZ); + regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1, NAU8824_I2S_DF_MASK | NAU8824_I2S_BP_MASK | NAU8824_I2S_PCMB_EN, ctrl1_val); @@ -1547,6 +1558,7 @@ static const struct snd_soc_component_driver nau8824_component_driver = { }; static const struct snd_soc_dai_ops nau8824_dai_ops = { + .startup = nau8824_dai_startup, .hw_params = nau8824_hw_params, .set_fmt = nau8824_set_fmt, .set_tdm_slot = nau8824_set_tdm_slot, |