ASoC: max98927: Modified DAPM widget and map to enable/disable VI sense path

[sfrench/cifs-2.6.git] / sound / soc / codecs / max98927.c

diff --git a/sound/soc/codecs/max98927.c b/sound/soc/codecs/max98927.c
index b5ee29499e166d887f6e62e3b2dfcfc05ef3aa4c..4bbf2098f2558641ea447c908e2deb93cd05a175 100644 (file)
--- a/sound/soc/codecs/max98927.c
+++ b/sound/soc/codecs/max98927.c
@@ -44,9 +44,9 @@ static struct reg_default max98927_reg[] = {
        {MAX98927_R0011_CLK_MON,  0x00},
        {MAX98927_R0012_WDOG_CTRL,  0x00},
        {MAX98927_R0013_WDOG_RST,  0x00},
-       {MAX98927_R0014_MEAS_ADC_THERM_WARN_THRESH,  0x00},
-       {MAX98927_R0015_MEAS_ADC_THERM_SHDN_THRESH,  0x00},
-       {MAX98927_R0016_MEAS_ADC_THERM_HYSTERESIS,  0x00},
+       {MAX98927_R0014_MEAS_ADC_THERM_WARN_THRESH,  0x75},
+       {MAX98927_R0015_MEAS_ADC_THERM_SHDN_THRESH,  0x8c},
+       {MAX98927_R0016_MEAS_ADC_THERM_HYSTERESIS,  0x08},
        {MAX98927_R0017_PIN_CFG,  0x55},
        {MAX98927_R0018_PCM_RX_EN_A,  0x00},
        {MAX98927_R0019_PCM_RX_EN_B,  0x00},
@@ -82,14 +82,14 @@ static struct reg_default max98927_reg[] = {
        {MAX98927_R003A_AMP_EN,  0x00},
        {MAX98927_R003B_SPK_SRC_SEL,  0x00},
        {MAX98927_R003C_SPK_GAIN,  0x00},
-       {MAX98927_R003D_SSM_CFG,  0x01},
+       {MAX98927_R003D_SSM_CFG,  0x04},
        {MAX98927_R003E_MEAS_EN,  0x00},
        {MAX98927_R003F_MEAS_DSP_CFG,  0x04},
        {MAX98927_R0040_BOOST_CTRL0,  0x00},
        {MAX98927_R0041_BOOST_CTRL3,  0x00},
        {MAX98927_R0042_BOOST_CTRL1,  0x00},
        {MAX98927_R0043_MEAS_ADC_CFG,  0x00},
-       {MAX98927_R0044_MEAS_ADC_BASE_MSB,  0x00},
+       {MAX98927_R0044_MEAS_ADC_BASE_MSB,  0x01},
        {MAX98927_R0045_MEAS_ADC_BASE_LSB,  0x00},
        {MAX98927_R0046_ADC_CH0_DIVIDE,  0x00},
        {MAX98927_R0047_ADC_CH1_DIVIDE,  0x00},
@@ -159,7 +159,7 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
                mode = MAX98927_PCM_MASTER_MODE_MASTER;
                break;
        default:
-               dev_err(codec->dev, "DAI clock mode unsupported");
+               dev_err(codec->dev, "DAI clock mode unsupported\n");
                return -EINVAL;
        }
 
@@ -175,7 +175,7 @@ static int max98927_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
                invert = MAX98927_PCM_MODE_CFG_PCM_BCLKEDGE;
                break;
        default:
-               dev_err(codec->dev, "DAI invert mode unsupported");
+               dev_err(codec->dev, "DAI invert mode unsupported\n");
                return -EINVAL;
        }
 
@@ -311,7 +311,7 @@ static int max98927_dai_hw_params(struct snd_pcm_substream *substream,
                chan_sz = MAX98927_PCM_MODE_CFG_CHANSZ_32;
                break;
        default:
-               dev_err(codec->dev, "format unsupported %d",
+               dev_err(codec->dev, "format unsupported %d\n",
                        params_format(params));
                goto err;
        }
@@ -418,11 +418,6 @@ static int max98927_dac_event(struct snd_soc_dapm_widget *w,
                regmap_update_bits(max98927->regmap,
                        MAX98927_R003A_AMP_EN,
                        MAX98927_AMP_EN_MASK, 1);
-               /* enable VMON and IMON */
-               regmap_update_bits(max98927->regmap,
-                       MAX98927_R003E_MEAS_EN,
-                       MAX98927_MEAS_V_EN | MAX98927_MEAS_I_EN,
-                       MAX98927_MEAS_V_EN | MAX98927_MEAS_I_EN);
                regmap_update_bits(max98927->regmap,
                        MAX98927_R00FF_GLOBAL_SHDN,
                        MAX98927_GLOBAL_EN_MASK, 1);
@@ -434,10 +429,6 @@ static int max98927_dac_event(struct snd_soc_dapm_widget *w,
                regmap_update_bits(max98927->regmap,
                        MAX98927_R003A_AMP_EN,
                        MAX98927_AMP_EN_MASK, 0);
-               /* disable VMON and IMON */
-               regmap_update_bits(max98927->regmap,
-                       MAX98927_R003E_MEAS_EN,
-                       MAX98927_MEAS_V_EN | MAX98927_MEAS_I_EN, 0);
                break;
        default:
                return 0;
@@ -456,14 +447,24 @@ static const struct soc_enum dai_sel_enum =
 static const struct snd_kcontrol_new max98927_dai_controls =
        SOC_DAPM_ENUM("DAI Sel", dai_sel_enum);
 
+static const struct snd_kcontrol_new max98927_vi_control =
+       SOC_DAPM_SINGLE("Switch", MAX98927_R003F_MEAS_DSP_CFG, 2, 1, 0);
+
 static const struct snd_soc_dapm_widget max98927_dapm_widgets[] = {
-       SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_DAC_E("Amp Enable", "HiFi Playback", MAX98927_R003A_AMP_EN,
                0, 0, max98927_dac_event,
                SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
        SND_SOC_DAPM_MUX("DAI Sel Mux", SND_SOC_NOPM, 0, 0,
                &max98927_dai_controls),
        SND_SOC_DAPM_OUTPUT("BE_OUT"),
+       SND_SOC_DAPM_AIF_OUT("Voltage Sense", "HiFi Capture",  0,
+               MAX98927_R003E_MEAS_EN, 0, 0),
+       SND_SOC_DAPM_AIF_OUT("Current Sense", "HiFi Capture",  0,
+               MAX98927_R003E_MEAS_EN, 1, 0),
+       SND_SOC_DAPM_SWITCH("VI Sense", SND_SOC_NOPM, 0, 0,
+               &max98927_vi_control),
+       SND_SOC_DAPM_SIGGEN("VMON"),
+       SND_SOC_DAPM_SIGGEN("IMON"),
 };
 
 static DECLARE_TLV_DB_SCALE(max98927_spk_tlv, 300, 300, 0);
@@ -495,6 +496,13 @@ static bool max98927_volatile_reg(struct device *dev, unsigned int reg)
 {
        switch (reg) {
        case MAX98927_R0001_INT_RAW1 ... MAX98927_R0009_INT_FLAG3:
+       case MAX98927_R004C_MEAS_ADC_CH0_READ:
+       case MAX98927_R004D_MEAS_ADC_CH1_READ:
+       case MAX98927_R004E_MEAS_ADC_CH2_READ:
+       case MAX98927_R0051_BROWNOUT_STATUS:
+       case MAX98927_R0087_ENV_TRACK_BOOST_VOUT_READ:
+       case MAX98927_R01FF_REV_ID:
+       case MAX98927_R0100_SOFT_RESET:
                return true;
        default:
                return false;
@@ -543,11 +551,16 @@ static const struct snd_kcontrol_new max98927_snd_controls[] = {
 };
 
 static const struct snd_soc_dapm_route max98927_audio_map[] = {
-       {"Amp Enable", NULL, "DAI_OUT"},
+       /* Plabyack */
        {"DAI Sel Mux", "Left", "Amp Enable"},
        {"DAI Sel Mux", "Right", "Amp Enable"},
        {"DAI Sel Mux", "LeftRight", "Amp Enable"},
        {"BE_OUT", NULL, "DAI Sel Mux"},
+       /* Capture */
+       { "VI Sense", "Switch", "VMON" },
+       { "VI Sense", "Switch", "IMON" },
+       { "Voltage Sense", NULL, "VI Sense" },
+       { "Current Sense", NULL, "VI Sense" },
 };
 
 static struct snd_soc_dai_driver max98927_dai[] = {
@@ -694,6 +707,31 @@ static int max98927_probe(struct snd_soc_codec *codec)
        return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int max98927_suspend(struct device *dev)
+{
+       struct max98927_priv *max98927 = dev_get_drvdata(dev);
+
+       regcache_cache_only(max98927->regmap, true);
+       regcache_mark_dirty(max98927->regmap);
+       return 0;
+}
+static int max98927_resume(struct device *dev)
+{
+       struct max98927_priv *max98927 = dev_get_drvdata(dev);
+
+       regmap_write(max98927->regmap,
+               MAX98927_R0100_SOFT_RESET, MAX98927_SOFT_RESET);
+       regcache_cache_only(max98927->regmap, false);
+       regcache_sync(max98927->regmap);
+       return 0;
+}
+#endif
+
+static const struct dev_pm_ops max98927_pm = {
+       SET_SYSTEM_SLEEP_PM_OPS(max98927_suspend, max98927_resume)
+};
+
 static const struct snd_soc_codec_driver soc_codec_dev_max98927 = {
        .probe = max98927_probe,
        .component_driver = {
@@ -827,7 +865,7 @@ static struct i2c_driver max98927_i2c_driver = {
                .name = "max98927",
                .of_match_table = of_match_ptr(max98927_of_match),
                .acpi_match_table = ACPI_PTR(max98927_acpi_match),
-               .pm = NULL,
+               .pm = &max98927_pm,
        },
        .probe  = max98927_i2c_probe,
        .remove = max98927_i2c_remove,