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ASoC: ad193x: add set_sysclk entry to support different clock input
Signed-off-by: Barry Song <21cnbao@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -24,6 +24,7 @@
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/* codec private data */
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struct ad193x_priv {
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unsigned int sysclk;
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struct snd_soc_codec codec;
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u8 reg_cache[AD193X_NUM_REGS];
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};
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@ -251,15 +252,32 @@ static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
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return 0;
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}
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static int ad193x_set_dai_sysclk(struct snd_soc_dai *codec_dai,
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int clk_id, unsigned int freq, int dir)
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{
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struct snd_soc_codec *codec = codec_dai->codec;
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struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
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switch (freq) {
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case 12288000:
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case 18432000:
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case 24576000:
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case 36864000:
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ad193x->sysclk = freq;
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return 0;
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}
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return -EINVAL;
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}
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static int ad193x_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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int word_len = 0, reg = 0;
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int word_len = 0, reg = 0, master_rate = 0;
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_device *socdev = rtd->socdev;
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struct snd_soc_codec *codec = socdev->card->codec;
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struct ad193x_priv *ad193x = snd_soc_codec_get_drvdata(codec);
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/* bit size */
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switch (params_format(params)) {
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@ -275,6 +293,25 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
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break;
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}
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switch (ad193x->sysclk) {
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case 12288000:
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master_rate = AD193X_PLL_INPUT_256;
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break;
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case 18432000:
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master_rate = AD193X_PLL_INPUT_384;
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break;
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case 24576000:
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master_rate = AD193X_PLL_INPUT_512;
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break;
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case 36864000:
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master_rate = AD193X_PLL_INPUT_768;
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break;
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}
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reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
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reg = (reg & AD193X_PLL_INPUT_MASK) | master_rate;
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snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
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reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
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reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) | word_len;
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snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
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@ -348,6 +385,7 @@ static int ad193x_bus_probe(struct device *dev, void *ctrl_data, int bus_type)
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/* pll input: mclki/xi */
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snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
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snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);
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ad193x->sysclk = 12288000;
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ret = snd_soc_register_codec(codec);
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if (ret != 0) {
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@ -383,6 +421,7 @@ static struct snd_soc_dai_ops ad193x_dai_ops = {
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.hw_params = ad193x_hw_params,
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.digital_mute = ad193x_mute,
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.set_tdm_slot = ad193x_set_tdm_slot,
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.set_sysclk = ad193x_set_dai_sysclk,
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.set_fmt = ad193x_set_dai_fmt,
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};
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@ -11,6 +11,11 @@
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#define AD193X_PLL_CLK_CTRL0 0x800
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#define AD193X_PLL_POWERDOWN 0x01
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#define AD193X_PLL_INPUT_MASK (~0x6)
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#define AD193X_PLL_INPUT_256 (0 << 1)
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#define AD193X_PLL_INPUT_384 (1 << 1)
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#define AD193X_PLL_INPUT_512 (2 << 1)
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#define AD193X_PLL_INPUT_768 (3 << 1)
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#define AD193X_PLL_CLK_CTRL1 0x801
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#define AD193X_DAC_CTRL0 0x802
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#define AD193X_DAC_POWERDOWN 0x01
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