static int pcm512x_dai_startup_master(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec);
struct device *dev = dai->dev;
struct snd_pcm_hw_constraint_ratnums *constraints_no_pll;
struct snd_ratnum *rats_no_pll;
if (IS_ERR(pcm512x->sclk)) {
dev_err(dev, "Need SCLK for master mode: %ld\n",
PTR_ERR(pcm512x->sclk));
return PTR_ERR(pcm512x->sclk);
}
if (pcm512x->pll_out)
return snd_pcm_hw_rule_add(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
pcm512x_hw_rule_rate,
pcm512x,
SNDRV_PCM_HW_PARAM_FRAME_BITS,
SNDRV_PCM_HW_PARAM_CHANNELS, -1);
constraints_no_pll = devm_kzalloc(dev, sizeof(*constraints_no_pll),
GFP_KERNEL);
if (!constraints_no_pll)
return -ENOMEM;
constraints_no_pll->nrats = 1;
rats_no_pll = devm_kzalloc(dev, sizeof(*rats_no_pll), GFP_KERNEL);
if (!rats_no_pll)
return -ENOMEM;
constraints_no_pll->rats = rats_no_pll;
rats_no_pll->num = clk_get_rate(pcm512x->sclk) / 64;
rats_no_pll->den_min = 1;
rats_no_pll->den_max = 128;
rats_no_pll->den_step = 1;
return snd_pcm_hw_constraint_ratnums(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
constraints_no_pll);
}
static int axi_spdif_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct axi_spdif *spdif = snd_soc_dai_get_drvdata(dai);
int ret;
ret = snd_pcm_hw_constraint_ratnums(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&spdif->rate_constraints);
if (ret)
return ret;
ret = clk_prepare_enable(spdif->clk_ref);
if (ret)
return ret;
regmap_update_bits(spdif->regmap, AXI_SPDIF_REG_CTRL,
AXI_SPDIF_CTRL_TXEN, AXI_SPDIF_CTRL_TXEN);
return 0;
}
static int axi_i2s_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct axi_i2s *i2s = snd_soc_dai_get_drvdata(dai);
uint32_t mask;
int ret;
if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
mask = AXI_I2S_RESET_RX_FIFO;
else
mask = AXI_I2S_RESET_TX_FIFO;
regmap_write(i2s->regmap, AXI_I2S_REG_RESET, mask);
ret = snd_pcm_hw_constraint_ratnums(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE,
&i2s->rate_constraints);
if (ret)
return ret;
return clk_prepare_enable(i2s->clk_ref);
}
static int snd_cs4236_xrate(struct snd_pcm_runtime *runtime)
{
return snd_pcm_hw_constraint_ratnums(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&hw_constraints_clocks);
}
