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ASoC: Intel: bytcr_rt5651: Configure PLL1 before using it

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When platform_clock_control() first selects PLL1 as sysclk the PLL_CTRL
registers have not been setup yet and we effectively have an invalid clock
configuration until byt_rt5651_aif1_hw_params() gets called.

Add a new byt_rt5651_prepare_and_enable_pll1() helper and use that from
both platform_clock_control() and byt_rt5651_aif1_hw_params() to fix this.

Tested-by: Carlo Caione <carlo@endlessm.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Hans de Goede 2018-03-04 15:36:03 +01:00 committed by Mark Brown
parent 8ffaa6a136
commit aeec6cc082
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 35 additions and 38 deletions
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73
sound/soc/intel/boards/bytcr_rt5651.c
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@ -111,6 +111,38 @@ static void log_quirks(struct device *dev)
#define BYT_CODEC_DAI1 "rt5651-aif1" #define BYT_CODEC_DAI1 "rt5651-aif1"
static int byt_rt5651_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai,
int rate, int bclk_ratio)
{
int clk_id, clk_freq, ret;
/* Configure the PLL before selecting it */
if (!(byt_rt5651_quirk & BYT_RT5651_MCLK_EN)) {
clk_id = RT5651_PLL1_S_BCLK1,
clk_freq = rate * bclk_ratio;
} else {
clk_id = RT5651_PLL1_S_MCLK;
if (byt_rt5651_quirk & BYT_RT5651_MCLK_25MHZ)
clk_freq = 25000000;
else
clk_freq = 19200000;
}
ret = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, rate * 512);
if (ret < 0) {
dev_err(codec_dai->codec->dev, "can't set pll: %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1,
rate * 512, SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(codec_dai->codec->dev, "can't set clock %d\n", ret);
return ret;
}
return 0;
}
static int platform_clock_control(struct snd_soc_dapm_widget *w, static int platform_clock_control(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event) struct snd_kcontrol *k, int event)
{ {
@ -136,9 +168,7 @@ static int platform_clock_control(struct snd_soc_dapm_widget *w,
return ret; return ret;
} }
} }
ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1, ret = byt_rt5651_prepare_and_enable_pll1(codec_dai, 48000, 50);
48000 * 512,
SND_SOC_CLOCK_IN);
} else { } else {
/* /*
* Set codec clock source to internal clock before * Set codec clock source to internal clock before
@ -252,44 +282,11 @@ static int byt_rt5651_aif1_hw_params(struct snd_pcm_substream *substream,
{ {
struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret; int rate = params_rate(params);
snd_soc_dai_set_bclk_ratio(codec_dai, 50); snd_soc_dai_set_bclk_ratio(codec_dai, 50);
ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1, return byt_rt5651_prepare_and_enable_pll1(codec_dai, rate, 50);
params_rate(params) * 512,
SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(rtd->dev, "can't set codec clock %d\n", ret);
return ret;
}
if (!(byt_rt5651_quirk & BYT_RT5651_MCLK_EN)) {
/* 2x25 bit slots on SSP2 */
ret = snd_soc_dai_set_pll(codec_dai, 0,
RT5651_PLL1_S_BCLK1,
params_rate(params) * 50,
params_rate(params) * 512);
} else {
if (byt_rt5651_quirk & BYT_RT5651_MCLK_25MHZ) {
ret = snd_soc_dai_set_pll(codec_dai, 0,
RT5651_PLL1_S_MCLK,
25000000,
params_rate(params) * 512);
} else {
ret = snd_soc_dai_set_pll(codec_dai, 0,
RT5651_PLL1_S_MCLK,
19200000,
params_rate(params) * 512);
}
}
if (ret < 0) {
dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
return ret;
}
return 0;
} }
static int byt_rt5651_quirk_cb(const struct dmi_system_id *id) static int byt_rt5651_quirk_cb(const struct dmi_system_id *id)