Commit 41df0829 authored by Paul Handrigan's avatar Paul Handrigan Committed by Mark Brown
Browse files

ASoC: cs42l73: Add DAPM events for power down. 



Add power down delays between setting PDN and MCLKDIS for spk amp, spklo amp, and ear amp.

Signed-off-by: default avatarPaul Handrigan <Paul.Handrigan@cirrus.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent a1ad500e

sound/soc/codecs/cs42l73.c

+72 −8
Original line number Diff line number Diff line
@@ -40,6 +40,7 @@ struct cs42l73_private { 
	u32 sysclk;

	u8 mclksel;

	u32 mclk;

	int shutdwn_delay;

};



static const struct reg_default cs42l73_reg_defaults[] = {
@@ -588,6 +589,57 @@ static const struct snd_kcontrol_new cs42l73_snd_controls[] = { 
	SOC_ENUM("XSPOUT Mono/Stereo Select", xsp_output_mux_enum),

};



static int cs42l73_spklo_spk_amp_event(struct snd_soc_dapm_widget *w,

	struct snd_kcontrol *kcontrol, int event)

{

	struct snd_soc_codec *codec = w->codec;

	struct cs42l73_private *priv = snd_soc_codec_get_drvdata(codec);

	switch (event) {

	case SND_SOC_DAPM_POST_PMD:

		/* 150 ms delay between setting PDN and MCLKDIS */

		priv->shutdwn_delay = 150;

		break;

	default:

		pr_err("Invalid event = 0x%x\n", event);

	}

	return 0;

}



static int cs42l73_ear_amp_event(struct snd_soc_dapm_widget *w,

	struct snd_kcontrol *kcontrol, int event)

{

	struct snd_soc_codec *codec = w->codec;

	struct cs42l73_private *priv = snd_soc_codec_get_drvdata(codec);

	switch (event) {

	case SND_SOC_DAPM_POST_PMD:

		/* 50 ms delay between setting PDN and MCLKDIS */

		if (priv->shutdwn_delay < 50)

			priv->shutdwn_delay = 50;

		break;

	default:

		pr_err("Invalid event = 0x%x\n", event);

	}

	return 0;

}





static int cs42l73_hp_amp_event(struct snd_soc_dapm_widget *w,

	struct snd_kcontrol *kcontrol, int event)

{

	struct snd_soc_codec *codec = w->codec;

	struct cs42l73_private *priv = snd_soc_codec_get_drvdata(codec);

	switch (event) {

	case SND_SOC_DAPM_POST_PMD:

		/* 30 ms delay between setting PDN and MCLKDIS */

		if (priv->shutdwn_delay < 30)

			priv->shutdwn_delay = 30;

		break;

	default:

		pr_err("Invalid event = 0x%x\n", event);

	}

	return 0;

}



static const struct snd_soc_dapm_widget cs42l73_dapm_widgets[] = {

	SND_SOC_DAPM_INPUT("DMICA"),

	SND_SOC_DAPM_INPUT("DMICB"),
@@ -676,16 +728,20 @@ static const struct snd_soc_dapm_widget cs42l73_dapm_widgets[] = { 
	SND_SOC_DAPM_PGA("SPK DAC", SND_SOC_NOPM, 0, 0, NULL, 0),

	SND_SOC_DAPM_PGA("ESL DAC", SND_SOC_NOPM, 0, 0, NULL, 0),



	SND_SOC_DAPM_SWITCH("HP Amp", CS42L73_PWRCTL3, 0, 1,

			    &hp_amp_ctl),

	SND_SOC_DAPM_SWITCH_E("HP Amp",  CS42L73_PWRCTL3, 0, 1,

			    &hp_amp_ctl, cs42l73_hp_amp_event,

			SND_SOC_DAPM_POST_PMD),

	SND_SOC_DAPM_SWITCH("LO Amp", CS42L73_PWRCTL3, 1, 1,

			    &lo_amp_ctl),

	SND_SOC_DAPM_SWITCH("SPK Amp", CS42L73_PWRCTL3, 2, 1,

			    &spk_amp_ctl),

	SND_SOC_DAPM_SWITCH("EAR Amp", CS42L73_PWRCTL3, 3, 1,

			    &ear_amp_ctl),

	SND_SOC_DAPM_SWITCH("SPKLO Amp", CS42L73_PWRCTL3, 4, 1,

			    &spklo_amp_ctl),

	SND_SOC_DAPM_SWITCH_E("SPK Amp", CS42L73_PWRCTL3, 2, 1,

			&spk_amp_ctl, cs42l73_spklo_spk_amp_event,

			SND_SOC_DAPM_POST_PMD),

	SND_SOC_DAPM_SWITCH_E("EAR Amp", CS42L73_PWRCTL3, 3, 1,

			    &ear_amp_ctl, cs42l73_ear_amp_event,

			SND_SOC_DAPM_POST_PMD),

	SND_SOC_DAPM_SWITCH_E("SPKLO Amp", CS42L73_PWRCTL3, 4, 1,

			    &spklo_amp_ctl, cs42l73_spklo_spk_amp_event,

			SND_SOC_DAPM_POST_PMD),



	SND_SOC_DAPM_OUTPUT("HPOUTA"),

	SND_SOC_DAPM_OUTPUT("HPOUTB"),
@@ -1171,6 +1227,14 @@ static int cs42l73_set_bias_level(struct snd_soc_codec *codec, 


	case SND_SOC_BIAS_OFF:

		snd_soc_update_bits(codec, CS42L73_PWRCTL1, PDN, 1);

		if (cs42l73->shutdwn_delay > 0) {

			mdelay(cs42l73->shutdwn_delay);

			cs42l73->shutdwn_delay = 0;

		} else {

			mdelay(15); /* Min amount of time requred to power

				     * down.

				     */

		}

		snd_soc_update_bits(codec, CS42L73_DMMCC, MCLKDIS, 1);

		break;

	}