tegra: kernel: voice call debug

Changed KB_ROW7 gpio to PULL_UP for better headset
detection.

Added vdd_sys_audio regulator for speaker amp

Debugging voice call UL/DL loss during stress testing.

Change-Id: Ib1930ff693306621aef269f0e0ff27aee2ab450f
Signed-off-by: ScottPeterson <speterson@nvidia.com>
Reviewed-on: http://git-master/r/171212

4 files changed, 58 insertions, 15 deletions

diff --git a/sound/soc/tegra/tegra30_dam.c b/sound/soc/tegra/tegra30_dam.c
index f4f2d69a0337..e2511edf219e 100644
--- a/sound/soc/tegra/tegra30_dam.c
+++ b/sound/soc/tegra/tegra30_dam.c
@@ -45,7 +45,6 @@ enum {
 	dam_ch_maxnum
 } tegra30_dam_chtype;
 
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
 struct tegra30_dam_src_step_table  step_table[] = {
 	{ 8000, 44100, 80 },
 	{ 8000, 48000, 1 },
@@ -56,7 +55,6 @@ struct tegra30_dam_src_step_table  step_table[] = {
 	{ 44100, 16000, 441 },
 	{ 48000, 16000, 0 },
 };
-#endif
 
 #ifndef CONFIG_ARCH_TEGRA_3x_SOC
 int coefRam16To44[64] = {
@@ -317,11 +315,9 @@ static void tegra30_dam_set_output_samplerate(struct tegra30_dam_context *dam,
 		int fsout);
 static void tegra30_dam_set_input_samplerate(struct tegra30_dam_context *dam,
 		int fsin);
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
 static int tegra30_dam_set_step_reset(struct tegra30_dam_context *dam,
 		int insample, int outsample);
 static void tegra30_dam_ch0_set_step(struct tegra30_dam_context *dam, int step);
-#endif
 
 static inline void tegra30_dam_writel(struct tegra30_dam_context *dam,
 			u32 val, u32 reg)
@@ -549,9 +545,7 @@ void tegra30_dam_set_samplerate(int ifc, int chid, int samplerate)
 	case dam_ch_in0:
 		tegra30_dam_set_input_samplerate(dam, samplerate);
 		dam->ch_insamplerate[dam_ch_in0] = samplerate;
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
 		tegra30_dam_set_step_reset(dam, samplerate, dam->outsamplerate);
-#endif
 		break;
 	case dam_ch_in1:
 		if (samplerate != dam->outsamplerate)
@@ -622,7 +616,6 @@ void tegra30_dam_set_input_samplerate(struct tegra30_dam_context *dam, int fsin)
 	tegra30_dam_writel(dam, val, TEGRA30_DAM_CH0_CTRL);
 }
 
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
 int tegra30_dam_set_step_reset(struct tegra30_dam_context *dam,
 		int insample, int outsample)
 {
@@ -649,7 +642,6 @@ void tegra30_dam_ch0_set_step(struct tegra30_dam_context *dam, int step)
 	val |= step << TEGRA30_DAM_CH0_CTRL_STEP_SHIFT;
 	tegra30_dam_writel(dam, val, TEGRA30_DAM_CH0_CTRL);
 }
-#endif
 
 int tegra30_dam_set_gain(int ifc, int chid, int gain)
 {
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index cf11d9e861a8..ab8e220f6d25 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -1140,6 +1140,7 @@ int tegra30_make_voice_call_connections(struct codec_config *codec_info,
 {
 	struct tegra30_i2s  *codec_i2s;
 	struct tegra30_i2s  *bb_i2s;
+	int reg;
 
 	codec_i2s = &i2scont[codec_info->i2s_id];
 	bb_i2s = &i2scont[bb_info->i2s_id];
@@ -1150,6 +1151,27 @@ int tegra30_make_voice_call_connections(struct codec_config *codec_info,
 	codec_i2s->capture_ref_count++;
 	bb_i2s->capture_ref_count++;
 
+	/* Make sure i2s is disabled during the configiration */
+	tegra30_i2s_enable_clocks(codec_i2s);
+	reg = codec_i2s->reg_ctrl;
+	reg &= ~TEGRA30_I2S_CTRL_TX_FLOWCTL_EN;
+	reg &= ~TEGRA30_I2S_CTRL_XFER_EN_TX;
+	reg &= ~TEGRA30_I2S_CTRL_XFER_EN_RX;
+	tegra30_i2s_write(codec_i2s, TEGRA30_I2S_CTRL,
+		codec_i2s->reg_ctrl);
+	tegra30_i2s_disable_clocks(codec_i2s);
+
+	tegra30_i2s_enable_clocks(bb_i2s);
+	reg = bb_i2s->reg_ctrl;
+	reg &= ~TEGRA30_I2S_CTRL_TX_FLOWCTL_EN;
+	reg &= ~TEGRA30_I2S_CTRL_XFER_EN_TX;
+	reg &= ~TEGRA30_I2S_CTRL_XFER_EN_RX;
+	tegra30_i2s_write(bb_i2s, TEGRA30_I2S_CTRL,
+		bb_i2s->reg_ctrl);
+	tegra30_i2s_disable_clocks(bb_i2s);
+
+	msleep(20);
+
 	/*Configure codec i2s*/
 	configure_baseband_i2s(codec_i2s, codec_info->is_i2smaster,
 		codec_info->is_format_dsp, codec_info->channels,
@@ -1171,6 +1193,16 @@ int tegra30_make_voice_call_connections(struct codec_config *codec_info,
 		tegra30_ahub_set_rx_cif_source(TEGRA30_AHUB_RXCIF_I2S0_RX0 +
 			    codec_info->i2s_id, TEGRA30_AHUB_TXCIF_I2S0_TX0 +
 			    bb_info->i2s_id);
+		if (!(codec_info->is_i2smaster && bb_info->is_i2smaster)) {
+			tegra30_i2s_write(codec_i2s, TEGRA30_I2S_FLOWCTL,
+				TEGRA30_I2S_FILTER_QUAD);
+			tegra30_i2s_write(bb_i2s, TEGRA30_I2S_FLOWCTL,
+				TEGRA30_I2S_FILTER_QUAD);
+			tegra30_i2s_write(codec_i2s, TEGRA30_I2S_TX_STEP, 4);
+			tegra30_i2s_write(bb_i2s, TEGRA30_I2S_TX_STEP, 4);
+			codec_i2s->reg_ctrl |= TEGRA30_I2S_CTRL_TX_FLOWCTL_EN;
+			bb_i2s->reg_ctrl |= TEGRA30_I2S_CTRL_TX_FLOWCTL_EN;
+		}
 	} else {
 
 		/*configure codec dam*/
@@ -1209,11 +1241,15 @@ int tegra30_make_voice_call_connections(struct codec_config *codec_info,
 			TEGRA30_DAM_CHIN0_SRC);
 	}
 
+	msleep(20);
+
 	codec_i2s->reg_ctrl |= TEGRA30_I2S_CTRL_XFER_EN_TX;
 	codec_i2s->reg_ctrl |= TEGRA30_I2S_CTRL_XFER_EN_RX;
 	tegra30_i2s_write(codec_i2s, TEGRA30_I2S_CTRL,
 		codec_i2s->reg_ctrl);
 
+	msleep(20);
+
 	bb_i2s->reg_ctrl |= TEGRA30_I2S_CTRL_XFER_EN_TX;
 	bb_i2s->reg_ctrl |= TEGRA30_I2S_CTRL_XFER_EN_RX;
 	tegra30_i2s_write(bb_i2s, TEGRA30_I2S_CTRL,
diff --git a/sound/soc/tegra/tegra30_i2s.h b/sound/soc/tegra/tegra30_i2s.h
index 10fadc86ab29..a0baaf7434aa 100644
--- a/sound/soc/tegra/tegra30_i2s.h
+++ b/sound/soc/tegra/tegra30_i2s.h
@@ -271,7 +271,7 @@ struct tegra30_i2s {
 	bool is_dam_used;
 #ifdef CONFIG_PM
 	#ifdef CONFIG_ARCH_TEGRA_3x_SOC
-		u32  reg_cache[(TEGRA30_I2S_CIF_TX_CTRL >> 2) + 1];
+		u32  reg_cache[(TEGRA30_I2S_LCOEF_2_4_2 >> 2) + 1];
 	#else
 		u32  reg_cache[(TEGRA30_I2S_SLOT_CTRL2 >> 2) + 1];
 	#endif
diff --git a/sound/soc/tegra/tegra_cs42l73.c b/sound/soc/tegra/tegra_cs42l73.c
index 2cd901ca6d89..e5e36b2fb2c6 100644
--- a/sound/soc/tegra/tegra_cs42l73.c
+++ b/sound/soc/tegra/tegra_cs42l73.c
@@ -91,6 +91,7 @@ struct tegra_cs42l73 {
 	struct regulator *dmic_reg;
 	struct regulator *dmic_1v8_reg;
 	struct regulator *hmic_reg;
+	struct regulator *spkr_reg;
 	enum snd_soc_bias_level bias_level;
 	struct snd_soc_card *pcard;
 #ifdef CONFIG_SWITCH
@@ -936,12 +937,11 @@ static int tegra_cs42l73_event_int_mic(struct snd_soc_dapm_widget *w,
 			regulator_disable(machine->dmic_1v8_reg);
 		}
 	}
-
 	if (!(machine->gpio_requested & GPIO_INT_MIC_EN))
 		return 0;
 
 	gpio_set_value_cansleep(pdata->gpio_int_mic_en,
-				SND_SOC_DAPM_EVENT_ON(event));
+				!!SND_SOC_DAPM_EVENT_ON(event));
 
 	return 0;
 }
@@ -954,11 +954,18 @@ static int tegra_cs42l73_event_int_spk(struct snd_soc_dapm_widget *w,
 	struct tegra_cs42l73 *machine = snd_soc_card_get_drvdata(card);
 	struct tegra_asoc_platform_data *pdata = machine->pdata;
 
+	if (machine->spkr_reg) {
+		if (SND_SOC_DAPM_EVENT_ON(event))
+			regulator_enable(machine->spkr_reg);
+		else
+			regulator_disable(machine->spkr_reg);
+	}
+
 	if (!(machine->gpio_requested & GPIO_SPKR_EN))
 		return 0;
 
 	gpio_set_value_cansleep(pdata->gpio_spkr_en,
-				SND_SOC_DAPM_EVENT_ON(event));
+				!!SND_SOC_DAPM_EVENT_ON(event));
 
 	return 0;
 }
@@ -982,7 +989,7 @@ static int tegra_cs42l73_event_ext_mic(struct snd_soc_dapm_widget *w,
 		return 0;
 
 	gpio_set_value_cansleep(pdata->gpio_ext_mic_en,
-				SND_SOC_DAPM_EVENT_ON(event));
+				!!SND_SOC_DAPM_EVENT_ON(event));
 
 	return 0;
 }
@@ -998,6 +1005,8 @@ static const struct snd_soc_dapm_widget tegra_cs42l73_dapm_widgets[] = {
 /* cs42l73 Audio Map */
 static const struct snd_soc_dapm_route tegra_cs42l73_audio_map[] = {
 	{"Int Spk", NULL, "SPKOUT"},
+	{"Int Spk", NULL, "SPKLINEOUT"},
+	{"Int Spk", NULL, "EAROUT"},
 	{"MIC2", NULL, "Headset Mic"},
 	{"ADC Left", NULL, "Headset Mic"},
 	{"ADC Right", NULL, "Headset Mic"},
@@ -1072,7 +1081,6 @@ static int tegra_cs42l73_init(struct snd_soc_pcm_runtime *rtd)
 		gpio_direction_output(pdata->gpio_spkr_en, 0);
 	}
 
-
 	/* Add call mode switch control */
 	ret = snd_ctl_add(codec->card->snd_card,
 		snd_ctl_new1(&tegra_call_mode_control, machine));
@@ -1212,7 +1220,6 @@ static struct snd_soc_card snd_soc_tegra_cs42l73 = {
 	.resume_pre = tegra_cs42l73_resume_pre,
 	.set_bias_level = tegra_cs42l73_set_bias_level,
 	.set_bias_level_post = tegra_cs42l73_set_bias_level_post,
-
 	.controls = tegra_cs42l73_controls,
 	.num_controls = ARRAY_SIZE(tegra_cs42l73_controls),
 	.dapm_widgets = tegra_cs42l73_dapm_widgets,
@@ -1286,6 +1293,12 @@ static __devinit int tegra_cs42l73_driver_probe(struct platform_device *pdev)
 		machine->hmic_reg = 0;
 	}
 
+	machine->spkr_reg = regulator_get(&pdev->dev, "vdd_sys_audio");
+	if (IS_ERR(machine->spkr_reg)) {
+		dev_info(&pdev->dev, "No speaker regulator found\n");
+		machine->spkr_reg = 0;
+	}
+
 #ifdef CONFIG_SWITCH
 	/* Addd h2w swith class support */
 	ret = switch_dev_register(&tegra_cs42l73_headset_switch);
@@ -1383,6 +1396,8 @@ static int __devexit tegra_cs42l73_driver_remove(struct platform_device *pdev)
 		regulator_put(machine->dmic_1v8_reg);
 	if (machine->hmic_reg)
 		regulator_put(machine->hmic_reg);
+	if (machine->spkr_reg)
+		regulator_put(machine->spkr_reg);
 
 	if (gpio_is_valid(pdata->gpio_ldo1_en)) {
 		gpio_set_value(pdata->gpio_ldo1_en, 0);