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Commit 979282a4 authored by Phani Kumar Uppalapati's avatar Phani Kumar Uppalapati Committed by Gerrit - the friendly Code Review server
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ASoC: wcd9335: Enable standalone ldo_h 



Add support for standalone enablement of ldo_h
in wcd9335 hardware. This is required to enable
certain audio TX use-cases.

CRs-fixed: 1032443
Change-Id: Iea068907241b42846d95d8e62e59409cdd29ca42
Signed-off-by: default avatarPhani Kumar Uppalapati <phaniu@codeaurora.org>
parent ad8cf1bb

sound/soc/codecs/wcd9335.c

+104 −0
Original line number Diff line number Diff line
@@ -138,6 +138,7 @@ static int cpe_debug_mode; 
#define DAPM_MICBIAS3_STANDALONE "MIC BIAS3 Standalone"

#define DAPM_MICBIAS4_STANDALONE "MIC BIAS4 Standalone"



#define DAPM_LDO_H_STANDALONE "LDO_H"

module_param(cpe_debug_mode, int,

	     S_IRUGO | S_IWUSR | S_IWGRP);

MODULE_PARM_DESC(cpe_debug_mode, "boot cpe in debug mode");
@@ -5861,6 +5862,55 @@ static int __tasha_codec_enable_micbias(struct snd_soc_dapm_widget *w, 
	return 0;

}



static int tasha_codec_ldo_h_control(struct snd_soc_dapm_widget *w,

				     int event)

{

	struct snd_soc_codec *codec = w->codec;

	struct tasha_priv *tasha = snd_soc_codec_get_drvdata(codec);



	if (SND_SOC_DAPM_EVENT_ON(event)) {

		tasha->ldo_h_users++;



		if (tasha->ldo_h_users == 1)

			snd_soc_update_bits(codec, WCD9335_LDOH_MODE,

					    0x80, 0x80);

	}



	if (SND_SOC_DAPM_EVENT_OFF(event)) {

		tasha->ldo_h_users--;



		if (tasha->ldo_h_users < 0)

			tasha->ldo_h_users = 0;



		if (tasha->ldo_h_users == 0)

			snd_soc_update_bits(codec, WCD9335_LDOH_MODE,

					    0x80, 0x00);

	}



	return 0;

}



static int tasha_codec_force_enable_ldo_h(struct snd_soc_dapm_widget *w,

					  struct snd_kcontrol *kcontrol,

					  int event)

{

	struct snd_soc_codec *codec = w->codec;

	struct tasha_priv *tasha = snd_soc_codec_get_drvdata(codec);



	switch (event) {

	case SND_SOC_DAPM_PRE_PMU:

		wcd_resmgr_enable_master_bias(tasha->resmgr);

		tasha_codec_ldo_h_control(w, event);

		break;

	case SND_SOC_DAPM_POST_PMD:

		tasha_codec_ldo_h_control(w, event);

		wcd_resmgr_disable_master_bias(tasha->resmgr);

		break;

	}



	return 0;

}



static int tasha_codec_force_enable_micbias(struct snd_soc_dapm_widget *w,

					    struct snd_kcontrol *kcontrol,

					    int event)
@@ -5893,6 +5943,27 @@ static int tasha_codec_enable_micbias(struct snd_soc_dapm_widget *w, 
	return __tasha_codec_enable_micbias(w, event);

}



static int tasha_codec_enable_standalone_ldo_h(struct snd_soc_codec *codec,

					       bool enable)

{

	int rc;



	if (enable)

		rc = snd_soc_dapm_force_enable_pin(&codec->dapm,

						   DAPM_LDO_H_STANDALONE);

	else

		rc = snd_soc_dapm_disable_pin(&codec->dapm,

					      DAPM_LDO_H_STANDALONE);



	if (!rc)

		snd_soc_dapm_sync(&codec->dapm);

	else

		dev_err(codec->dev, "%s: ldo_h force %s pin failed\n",

			__func__, (enable ? "enable" : "disable"));



	return rc;

}



/*

 * tasha_codec_enable_standalone_micbias - enable micbias standalone

 * @codec: pointer to codec instance
@@ -7430,6 +7501,34 @@ static const struct soc_enum tasha_conn_mad_enum = 
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(tasha_conn_mad_text),

			    tasha_conn_mad_text);



static int tasha_enable_ldo_h_get(struct snd_kcontrol *kcontrol,

				  struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);

	u8 val = 0;



	if (codec)

		val = snd_soc_read(codec, WCD9335_LDOH_MODE) & 0x80;



	ucontrol->value.integer.value[0] = !!val;



	return 0;

}



static int tasha_enable_ldo_h_put(struct snd_kcontrol *kcontrol,

				  struct snd_ctl_elem_value *ucontrol)

{

	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);

	int value = ucontrol->value.integer.value[0];

	bool enable;



	enable = !!value;

	if (codec)

		tasha_codec_enable_standalone_ldo_h(codec, enable);



	return 0;

}



static int tasha_mad_input_get(struct snd_kcontrol *kcontrol,

	struct snd_ctl_elem_value *ucontrol)

{
@@ -8173,6 +8272,8 @@ static const struct snd_kcontrol_new tasha_snd_controls[] = { 


	SOC_ENUM_EXT("MAD Input", tasha_conn_mad_enum,

		     tasha_mad_input_get, tasha_mad_input_put),

	SOC_SINGLE_EXT("LDO_H Enable", SND_SOC_NOPM, 0, 1, 0,

			tasha_enable_ldo_h_get, tasha_enable_ldo_h_put),



	SOC_SINGLE_EXT("DMIC1_CLK_PIN_MODE", SND_SOC_NOPM, 17, 1, 0,

		       tasha_pinctl_mode_get, tasha_pinctl_mode_put),
@@ -10324,6 +10425,9 @@ static const struct snd_soc_dapm_widget tasha_dapm_widgets[] = { 
	SND_SOC_DAPM_MICBIAS_E(DAPM_MICBIAS4_STANDALONE, SND_SOC_NOPM, 0, 0,

			       tasha_codec_force_enable_micbias,

			       SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),

	SND_SOC_DAPM_SUPPLY(DAPM_LDO_H_STANDALONE, SND_SOC_NOPM, 0, 0,

			    tasha_codec_force_enable_ldo_h,

			    SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),



	SND_SOC_DAPM_MUX("ANC0 FB MUX", SND_SOC_NOPM, 0, 0, &anc0_fb_mux),

	SND_SOC_DAPM_MUX("ANC1 FB MUX", SND_SOC_NOPM, 0, 0, &anc1_fb_mux),