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ASoC: Intel: Update bxt_da7219_max98357a to add a new 

This patch adds a platform clock widget to turn off the clock only when
both headset capture and headset playback are not in use. This removes
turning off the clock in hw_free so that the clock is on when
either capture or playback of headset is in progress.

Signed-off-by: Harsha Priya <harshapriya.n@intel.com>
Signed-off-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Harsha Priya 2017-03-15 16:28:25 -07:00 committed by Mark Brown
parent bf3e5ef5d5
commit d7fba9dcf6
1 changed files with 53 additions and 44 deletions
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97
sound/soc/intel/boards/bxt_da7219_max98357a.c
View File

@ -55,6 +55,54 @@ enum {
BXT_DPCM_AUDIO_HDMI3_PB,
};
static inline struct snd_soc_dai *bxt_get_codec_dai(struct snd_soc_card *card)
{
struct snd_soc_pcm_runtime *rtd;
list_for_each_entry(rtd, &card->rtd_list, list) {
if (!strncmp(rtd->codec_dai->name, BXT_DIALOG_CODEC_DAI,
strlen(BXT_DIALOG_CODEC_DAI)))
return rtd->codec_dai;
}
return NULL;
}
static int platform_clock_control(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
int ret = 0;
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_card *card = dapm->card;
struct snd_soc_dai *codec_dai;
codec_dai = bxt_get_codec_dai(card);
if (!codec_dai) {
dev_err(card->dev, "Codec dai not found; Unable to set/unset codec pll\n");
return -EIO;
}
if (SND_SOC_DAPM_EVENT_OFF(event)) {
ret = snd_soc_dai_set_pll(codec_dai, 0,
DA7219_SYSCLK_MCLK, 0, 0);
if (ret)
dev_err(card->dev, "failed to stop PLL: %d\n", ret);
} else if(SND_SOC_DAPM_EVENT_ON(event)) {
ret = snd_soc_dai_set_sysclk(codec_dai,
DA7219_CLKSRC_MCLK, 19200000, SND_SOC_CLOCK_IN);
if (ret)
dev_err(card->dev, "can't set codec sysclk configuration\n");
ret = snd_soc_dai_set_pll(codec_dai, 0,
DA7219_SYSCLK_PLL_SRM, 0, DA7219_PLL_FREQ_OUT_98304);
if (ret)
dev_err(card->dev, "failed to start PLL: %d\n", ret);
}
return ret;
}
static const struct snd_kcontrol_new broxton_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone Jack"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
@ -69,6 +117,8 @@ static const struct snd_soc_dapm_widget broxton_widgets[] = {
SND_SOC_DAPM_SPK("HDMI1", NULL),
SND_SOC_DAPM_SPK("HDMI2", NULL),
SND_SOC_DAPM_SPK("HDMI3", NULL),
SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
platform_clock_control, SND_SOC_DAPM_POST_PMD|SND_SOC_DAPM_PRE_PMU),
};
static const struct snd_soc_dapm_route broxton_map[] = {
@ -109,6 +159,9 @@ static const struct snd_soc_dapm_route broxton_map[] = {
/* DMIC */
{"dmic01_hifi", NULL, "DMIC01 Rx"},
{"DMIC01 Rx", NULL, "DMIC AIF"},
{ "Headphone Jack", NULL, "Platform Clock" },
{ "Headset Mic", NULL, "Platform Clock" },
};
static int broxton_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
@ -243,49 +296,6 @@ static const struct snd_soc_ops broxton_da7219_fe_ops = {
.startup = bxt_fe_startup,
};
static int broxton_da7219_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret;
ret = snd_soc_dai_set_sysclk(codec_dai,
DA7219_CLKSRC_MCLK, 19200000, SND_SOC_CLOCK_IN);
if (ret < 0)
dev_err(codec_dai->dev, "can't set codec sysclk configuration\n");
ret = snd_soc_dai_set_pll(codec_dai, 0,
DA7219_SYSCLK_PLL_SRM, 0, DA7219_PLL_FREQ_OUT_98304);
if (ret < 0) {
dev_err(codec_dai->dev, "failed to start PLL: %d\n", ret);
return -EIO;
}
return ret;
}
static int broxton_da7219_hw_free(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int ret;
ret = snd_soc_dai_set_pll(codec_dai, 0,
DA7219_SYSCLK_MCLK, 0, 0);
if (ret < 0) {
dev_err(codec_dai->dev, "failed to stop PLL: %d\n", ret);
return -EIO;
}
return ret;
}
static const struct snd_soc_ops broxton_da7219_ops = {
.hw_params = broxton_da7219_hw_params,
.hw_free = broxton_da7219_hw_free,
};
static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
{
@ -467,7 +477,6 @@ static struct snd_soc_dai_link broxton_dais[] = {
SND_SOC_DAIFMT_CBS_CFS,
.ignore_pmdown_time = 1,
.be_hw_params_fixup = broxton_ssp_fixup,
.ops = &broxton_da7219_ops,
.dpcm_playback = 1,
.dpcm_capture = 1,
},