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-rw-r--r--sound/soc/codecs/nau8824.c67
1 files changed, 38 insertions, 29 deletions
diff --git a/sound/soc/codecs/nau8824.c b/sound/soc/codecs/nau8824.c
index 10bdfebe92d5..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];
}
+}
- if (!osrate || rate * osr > CLK_DA_AD_MAX) {
- dev_err(nau8824->dev, "exceed the maximum frequency of CLK_ADC or CLK_DAC\n");
+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;
+
+ 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 +1057,8 @@ 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);
@@ -1054,27 +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))
- goto error;
+ 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))
- goto error;
+ 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,
@@ -1550,6 +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,