[alsa-devel][RESEND PATCH 1/3 v3] ASoC: TSCS42xx: Shorten lines and other cleanup

[alsa-devel][RESEND PATCH 1/3 v3] ASoC: TSCS42xx: Shorten lines and other cleanup

[Steven Eckhoff]

Shorten lines greater than 80 chars
Add const to struct snd_soc_component_driver

Signed-off-by: Steven Eckhoff <steven.eckhoff.opensource@gmail.com>
---
 sound/soc/codecs/tscs42xx.c | 87 ++++++++++++++++++++++++++++-----------------
 1 file changed, 55 insertions(+), 32 deletions(-)

diff --git a/sound/soc/codecs/tscs42xx.c b/sound/soc/codecs/tscs42xx.c
index bbfc73a79b18..5ad68e5538ae 100644
--- a/sound/soc/codecs/tscs42xx.c
+++ b/sound/soc/codecs/tscs42xx.c
@@ -204,7 +204,8 @@ static int power_up_audio_plls(struct snd_soc_component *component)
 		break;
 	default:
 		ret = -EINVAL;
-		dev_err(component->dev, "Unrecognized PLL output freq (%d)\n", ret);
+		dev_err(component->dev,
+				"Unrecognized PLL output freq (%d)\n", ret);
 		return ret;
 	}
 
@@ -261,7 +262,8 @@ static int power_down_audio_plls(struct snd_soc_component *component)
 static int coeff_ram_get(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol)
 {
-	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct snd_soc_component *component =
+		snd_soc_kcontrol_component(kcontrol);
 	struct tscs42xx *tscs42xx = snd_soc_component_get_drvdata(component);
 	struct coeff_ram_ctl *ctl =
 		(struct coeff_ram_ctl *)kcontrol->private_value;
@@ -280,7 +282,8 @@ static int coeff_ram_get(struct snd_kcontrol *kcontrol,
 static int coeff_ram_put(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol)
 {
-	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct snd_soc_component *component =
+		snd_soc_kcontrol_component(kcontrol);
 	struct tscs42xx *tscs42xx = snd_soc_component_get_drvdata(component);
 	struct coeff_ram_ctl *ctl =
 		(struct coeff_ram_ctl *)kcontrol->private_value;
@@ -363,7 +366,8 @@ static int dapm_micb_event(struct snd_soc_dapm_widget *w,
 static int pll_event(struct snd_soc_dapm_widget *w,
 		     struct snd_kcontrol *kcontrol, int event)
 {
-	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+	struct snd_soc_component *component =
+		snd_soc_dapm_to_component(w->dapm);
 	int ret;
 
 	if (SND_SOC_DAPM_EVENT_ON(event))
@@ -377,7 +381,8 @@ static int pll_event(struct snd_soc_dapm_widget *w,
 static int dac_event(struct snd_soc_dapm_widget *w,
 		     struct snd_kcontrol *kcontrol, int event)
 {
-	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
+	struct snd_soc_component *component =
+		snd_soc_dapm_to_component(w->dapm);
 	struct tscs42xx *tscs42xx = snd_soc_component_get_drvdata(component);
 	int ret;
 
@@ -819,16 +824,19 @@ static int setup_sample_format(struct snd_soc_component *component,
 		dev_err(component->dev, "Unsupported format width (%d)\n", ret);
 		return ret;
 	}
-	ret = snd_soc_component_update_bits(component, R_AIC1, RM_AIC1_WL, width);
+	ret = snd_soc_component_update_bits(component,
+			R_AIC1, RM_AIC1_WL, width);
 	if (ret < 0) {
-		dev_err(component->dev, "Failed to set sample width (%d)\n", ret);
+		dev_err(component->dev,
+				"Failed to set sample width (%d)\n", ret);
 		return ret;
 	}
 
 	return 0;
 }
 
-static int setup_sample_rate(struct snd_soc_component *component, unsigned int rate)
+static int setup_sample_rate(struct snd_soc_component *component,
+		unsigned int rate)
 {
 	struct tscs42xx *tscs42xx = snd_soc_component_get_drvdata(component);
 	unsigned int br, bm;
@@ -881,24 +889,32 @@ static int setup_sample_rate(struct snd_soc_component *component, unsigned int r
 	}
 
 	/* DAC and ADC share bit and frame clock */
-	ret = snd_soc_component_update_bits(component, R_DACSR, RM_DACSR_DBR, br);
+	ret = snd_soc_component_update_bits(component,
+			R_DACSR, RM_DACSR_DBR, br);
 	if (ret < 0) {
-		dev_err(component->dev, "Failed to update register (%d)\n", ret);
+		dev_err(component->dev,
+				"Failed to update register (%d)\n", ret);
 		return ret;
 	}
-	ret = snd_soc_component_update_bits(component, R_DACSR, RM_DACSR_DBM, bm);
+	ret = snd_soc_component_update_bits(component,
+			R_DACSR, RM_DACSR_DBM, bm);
 	if (ret < 0) {
-		dev_err(component->dev, "Failed to update register (%d)\n", ret);
+		dev_err(component->dev,
+				"Failed to update register (%d)\n", ret);
 		return ret;
 	}
-	ret = snd_soc_component_update_bits(component, R_ADCSR, RM_DACSR_DBR, br);
+	ret = snd_soc_component_update_bits(component,
+			R_ADCSR, RM_DACSR_DBR, br);
 	if (ret < 0) {
-		dev_err(component->dev, "Failed to update register (%d)\n", ret);
+		dev_err(component->dev,
+				"Failed to update register (%d)\n", ret);
 		return ret;
 	}
-	ret = snd_soc_component_update_bits(component, R_ADCSR, RM_DACSR_DBM, bm);
+	ret = snd_soc_component_update_bits(component,
+			R_ADCSR, RM_DACSR_DBM, bm);
 	if (ret < 0) {
-		dev_err(component->dev, "Failed to update register (%d)\n", ret);
+		dev_err(component->dev,
+				"Failed to update register (%d)\n", ret);
 		return ret;
 	}
 
@@ -1076,7 +1092,8 @@ static int tscs42xx_hw_params(struct snd_pcm_substream *substream,
 
 	ret = setup_sample_rate(component, params_rate(params));
 	if (ret < 0) {
-		dev_err(component->dev, "Failed to setup sample rate (%d)\n", ret);
+		dev_err(component->dev,
+				"Failed to setup sample rate (%d)\n", ret);
 		return ret;
 	}
 
@@ -1087,7 +1104,8 @@ static inline int dac_mute(struct snd_soc_component *component)
 {
 	int ret;
 
-	ret = snd_soc_component_update_bits(component, R_CNVRTR1, RM_CNVRTR1_DACMU,
+	ret = snd_soc_component_update_bits(component,
+			R_CNVRTR1, RM_CNVRTR1_DACMU,
 		RV_CNVRTR1_DACMU_ENABLE);
 	if (ret < 0) {
 		dev_err(component->dev, "Failed to mute DAC (%d)\n",
@@ -1102,7 +1120,8 @@ static inline int dac_unmute(struct snd_soc_component *component)
 {
 	int ret;
 
-	ret = snd_soc_component_update_bits(component, R_CNVRTR1, RM_CNVRTR1_DACMU,
+	ret = snd_soc_component_update_bits(component,
+			R_CNVRTR1, RM_CNVRTR1_DACMU,
 		RV_CNVRTR1_DACMU_DISABLE);
 	if (ret < 0) {
 		dev_err(component->dev, "Failed to unmute DAC (%d)\n",
@@ -1117,8 +1136,8 @@ static inline int adc_mute(struct snd_soc_component *component)
 {
 	int ret;
 
-	ret = snd_soc_component_update_bits(component, R_CNVRTR0, RM_CNVRTR0_ADCMU,
-		RV_CNVRTR0_ADCMU_ENABLE);
+	ret = snd_soc_component_update_bits(component,
+			R_CNVRTR0, RM_CNVRTR0_ADCMU, RV_CNVRTR0_ADCMU_ENABLE);
 	if (ret < 0) {
 		dev_err(component->dev, "Failed to mute ADC (%d)\n",
 				ret);
@@ -1132,8 +1151,8 @@ static inline int adc_unmute(struct snd_soc_component *component)
 {
 	int ret;
 
-	ret = snd_soc_component_update_bits(component, R_CNVRTR0, RM_CNVRTR0_ADCMU,
-		RV_CNVRTR0_ADCMU_DISABLE);
+	ret = snd_soc_component_update_bits(component,
+			R_CNVRTR0, RM_CNVRTR0_ADCMU, RV_CNVRTR0_ADCMU_DISABLE);
 	if (ret < 0) {
 		dev_err(component->dev, "Failed to unmute ADC (%d)\n",
 				ret);
@@ -1171,8 +1190,8 @@ static int tscs42xx_set_dai_fmt(struct snd_soc_dai *codec_dai,
 	/* Slave mode not supported since it needs always-on frame clock */
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBM_CFM:
-		ret = snd_soc_component_update_bits(component, R_AIC1, RM_AIC1_MS,
-				RV_AIC1_MS_MASTER);
+		ret = snd_soc_component_update_bits(component,
+				R_AIC1, RM_AIC1_MS, RV_AIC1_MS_MASTER);
 		if (ret < 0) {
 			dev_err(component->dev,
 				"Failed to set codec DAI master (%d)\n", ret);
@@ -1211,14 +1230,18 @@ static int tscs42xx_set_dai_bclk_ratio(struct snd_soc_dai *codec_dai,
 		return -EINVAL;
 	}
 
-	ret = snd_soc_component_update_bits(component, R_DACSR, RM_DACSR_DBCM, value);
+	ret = snd_soc_component_update_bits(component,
+			R_DACSR, RM_DACSR_DBCM, value);
 	if (ret < 0) {
-		dev_err(component->dev, "Failed to set DAC BCLK ratio (%d)\n", ret);
+		dev_err(component->dev,
+				"Failed to set DAC BCLK ratio (%d)\n", ret);
 		return ret;
 	}
-	ret = snd_soc_component_update_bits(component, R_ADCSR, RM_ADCSR_ABCM, value);
+	ret = snd_soc_component_update_bits(component,
+			R_ADCSR, RM_ADCSR_ABCM, value);
 	if (ret < 0) {
-		dev_err(component->dev, "Failed to set ADC BCLK ratio (%d)\n", ret);
+		dev_err(component->dev,
+				"Failed to set ADC BCLK ratio (%d)\n", ret);
 		return ret;
 	}
 
@@ -1309,7 +1332,7 @@ static int part_is_valid(struct tscs42xx *tscs42xx)
 	};
 }
 
-static struct snd_soc_component_driver soc_codec_dev_tscs42xx = {
+static const struct snd_soc_component_driver soc_codec_dev_tscs42xx = {
 	.dapm_widgets		= tscs42xx_dapm_widgets,
 	.num_dapm_widgets	= ARRAY_SIZE(tscs42xx_dapm_widgets),
 	.dapm_routes		= tscs42xx_intercon,
@@ -1416,8 +1439,8 @@ static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 	mutex_init(&tscs42xx->coeff_ram_lock);
 	mutex_init(&tscs42xx->pll_lock);
 
-	ret = devm_snd_soc_register_component(tscs42xx->dev, &soc_codec_dev_tscs42xx,
-			&tscs42xx_dai, 1);
+	ret = devm_snd_soc_register_component(tscs42xx->dev,
+			&soc_codec_dev_tscs42xx, &tscs42xx_dai, 1);
 	if (ret) {
 		dev_err(tscs42xx->dev, "Failed to register codec (%d)\n", ret);
 		return ret;
-- 
2.15.1

[alsa-devel][RESEND PATCH 2/3 v3] ASoC: TSCS42xx: Cleanup private data members

[Steven Eckhoff]

Remove blrcm from private data
Remove dev from private data

Signed-off-by: Steven Eckhoff <steven.eckhoff.opensource@gmail.com>
---
 sound/soc/codecs/tscs42xx.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/tscs42xx.c b/sound/soc/codecs/tscs42xx.c
index 5ad68e5538ae..bf207b0345f1 100644
--- a/sound/soc/codecs/tscs42xx.c
+++ b/sound/soc/codecs/tscs42xx.c
@@ -31,7 +31,6 @@ struct tscs42xx {
 
 	int bclk_ratio;
 	int samplerate;
-	unsigned int blrcm;
 	struct mutex audio_params_lock;
 
 	u8 coeff_ram[COEFF_RAM_SIZE];
@@ -41,8 +40,6 @@ struct tscs42xx {
 	struct mutex pll_lock;
 
 	struct regmap *regmap;
-
-	struct device *dev;
 };
 
 struct coeff_ram_ctl {
@@ -1404,12 +1401,11 @@ static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 	i2c_set_clientdata(i2c, tscs42xx);
-	tscs42xx->dev = &i2c->dev;
 
 	tscs42xx->regmap = devm_regmap_init_i2c(i2c, &tscs42xx_regmap);
 	if (IS_ERR(tscs42xx->regmap)) {
 		ret = PTR_ERR(tscs42xx->regmap);
-		dev_err(tscs42xx->dev, "Failed to allocate regmap (%d)\n", ret);
+		dev_err(&i2c->dev, "Failed to allocate regmap (%d)\n", ret);
 		return ret;
 	}
 
@@ -1417,21 +1413,21 @@ static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 
 	ret = part_is_valid(tscs42xx);
 	if (ret <= 0) {
-		dev_err(tscs42xx->dev, "No valid part (%d)\n", ret);
+		dev_err(&i2c->dev, "No valid part (%d)\n", ret);
 		ret = -ENODEV;
 		return ret;
 	}
 
 	ret = regmap_write(tscs42xx->regmap, R_RESET, RV_RESET_ENABLE);
 	if (ret < 0) {
-		dev_err(tscs42xx->dev, "Failed to reset device (%d)\n", ret);
+		dev_err(&i2c->dev, "Failed to reset device (%d)\n", ret);
 		return ret;
 	}
 
 	ret = regmap_register_patch(tscs42xx->regmap, tscs42xx_patch,
 			ARRAY_SIZE(tscs42xx_patch));
 	if (ret < 0) {
-		dev_err(tscs42xx->dev, "Failed to apply patch (%d)\n", ret);
+		dev_err(&i2c->dev, "Failed to apply patch (%d)\n", ret);
 		return ret;
 	}
 
@@ -1439,10 +1435,10 @@ static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 	mutex_init(&tscs42xx->coeff_ram_lock);
 	mutex_init(&tscs42xx->pll_lock);
 
-	ret = devm_snd_soc_register_component(tscs42xx->dev,
+	ret = devm_snd_soc_register_component(&i2c->dev,
 			&soc_codec_dev_tscs42xx, &tscs42xx_dai, 1);
 	if (ret) {
-		dev_err(tscs42xx->dev, "Failed to register codec (%d)\n", ret);
+		dev_err(&i2c->dev, "Failed to register codec (%d)\n", ret);
 		return ret;
 	}
 
-- 
2.15.1

[RESEND PATCH 2/3 v3] ASoC: TSCS42xx: Cleanup private data members

[Steven Eckhoff]

Remove blrcm from private data
Remove dev from private data

Signed-off-by: Steven Eckhoff <steven.eckhoff.opensource@gmail.com>
---
 sound/soc/codecs/tscs42xx.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/tscs42xx.c b/sound/soc/codecs/tscs42xx.c
index 5ad68e5538ae..bf207b0345f1 100644
--- a/sound/soc/codecs/tscs42xx.c
+++ b/sound/soc/codecs/tscs42xx.c
@@ -31,7 +31,6 @@ struct tscs42xx {
 
 	int bclk_ratio;
 	int samplerate;
-	unsigned int blrcm;
 	struct mutex audio_params_lock;
 
 	u8 coeff_ram[COEFF_RAM_SIZE];
@@ -41,8 +40,6 @@ struct tscs42xx {
 	struct mutex pll_lock;
 
 	struct regmap *regmap;
-
-	struct device *dev;
 };
 
 struct coeff_ram_ctl {
@@ -1404,12 +1401,11 @@ static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 	i2c_set_clientdata(i2c, tscs42xx);
-	tscs42xx->dev = &i2c->dev;
 
 	tscs42xx->regmap = devm_regmap_init_i2c(i2c, &tscs42xx_regmap);
 	if (IS_ERR(tscs42xx->regmap)) {
 		ret = PTR_ERR(tscs42xx->regmap);
-		dev_err(tscs42xx->dev, "Failed to allocate regmap (%d)\n", ret);
+		dev_err(&i2c->dev, "Failed to allocate regmap (%d)\n", ret);
 		return ret;
 	}
 
@@ -1417,21 +1413,21 @@ static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 
 	ret = part_is_valid(tscs42xx);
 	if (ret <= 0) {
-		dev_err(tscs42xx->dev, "No valid part (%d)\n", ret);
+		dev_err(&i2c->dev, "No valid part (%d)\n", ret);
 		ret = -ENODEV;
 		return ret;
 	}
 
 	ret = regmap_write(tscs42xx->regmap, R_RESET, RV_RESET_ENABLE);
 	if (ret < 0) {
-		dev_err(tscs42xx->dev, "Failed to reset device (%d)\n", ret);
+		dev_err(&i2c->dev, "Failed to reset device (%d)\n", ret);
 		return ret;
 	}
 
 	ret = regmap_register_patch(tscs42xx->regmap, tscs42xx_patch,
 			ARRAY_SIZE(tscs42xx_patch));
 	if (ret < 0) {
-		dev_err(tscs42xx->dev, "Failed to apply patch (%d)\n", ret);
+		dev_err(&i2c->dev, "Failed to apply patch (%d)\n", ret);
 		return ret;
 	}
 
@@ -1439,10 +1435,10 @@ static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 	mutex_init(&tscs42xx->coeff_ram_lock);
 	mutex_init(&tscs42xx->pll_lock);
 
-	ret = devm_snd_soc_register_component(tscs42xx->dev,
+	ret = devm_snd_soc_register_component(&i2c->dev,
 			&soc_codec_dev_tscs42xx, &tscs42xx_dai, 1);
 	if (ret) {
-		dev_err(tscs42xx->dev, "Failed to register codec (%d)\n", ret);
+		dev_err(&i2c->dev, "Failed to register codec (%d)\n", ret);
 		return ret;
 	}
 
-- 
2.15.1

[alsa-devel][RESEND PATCH 3/3 v3] ASoC: TSCS42xx: Add CCF support to get sysclk

[Steven Eckhoff]

The TSCS42xx relies on set_sysclk to get a unique clock id and rate,
which prevents it from being used with the simple-card.

Remove set_sysclk callback
Add CCF support to get clock id and rate
Add clocks and clock-names to device tree binding

Signed-off-by: Steven Eckhoff <steven.eckhoff.opensource@gmail.com>
---
 .../devicetree/bindings/sound/tscs42xx.txt         |   6 ++
 sound/soc/codecs/tscs42xx.c                        | 104 ++++++++++++++-------
 sound/soc/codecs/tscs42xx.h                        |   2 +-
 3 files changed, 75 insertions(+), 37 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/tscs42xx.txt b/Documentation/devicetree/bindings/sound/tscs42xx.txt
index 2ac2f0996697..7eea32e9d078 100644
--- a/Documentation/devicetree/bindings/sound/tscs42xx.txt
+++ b/Documentation/devicetree/bindings/sound/tscs42xx.txt
@@ -8,9 +8,15 @@ Required Properties:
 	- reg : 	<0x71> for analog mic
 			<0x69> for digital mic
 
+	- clock-names:	Must one of  the following "mclk1", "xtal", "mclk2"
+
+	- clocks:	phandle of the clock that provides the codec sysclk
+
 Example:
 
 wookie: codec@69 {
 	compatible = "tempo,tscs42A2";
 	reg = <0x69>;
+	clock-names = "xtal";
+	clocks = <&audio_xtal>;
 };
diff --git a/sound/soc/codecs/tscs42xx.c b/sound/soc/codecs/tscs42xx.c
index bf207b0345f1..d18ff17719cc 100644
--- a/sound/soc/codecs/tscs42xx.c
+++ b/sound/soc/codecs/tscs42xx.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/mutex.h>
+#include <linux/clk.h>
 #include <sound/tlv.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
@@ -40,6 +41,9 @@ struct tscs42xx {
 	struct mutex pll_lock;
 
 	struct regmap *regmap;
+
+	struct clk *sysclk;
+	int sysclk_src_id;
 };
 
 struct coeff_ram_ctl {
@@ -1251,13 +1255,46 @@ static int tscs42xx_set_dai_bclk_ratio(struct snd_soc_dai *codec_dai,
 	return 0;
 }
 
-static int tscs42xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
-	int clk_id, unsigned int freq, int dir)
+static const struct snd_soc_dai_ops tscs42xx_dai_ops = {
+	.hw_params	= tscs42xx_hw_params,
+	.mute_stream	= tscs42xx_mute_stream,
+	.set_fmt	= tscs42xx_set_dai_fmt,
+	.set_bclk_ratio = tscs42xx_set_dai_bclk_ratio,
+};
+
+static int part_is_valid(struct tscs42xx *tscs42xx)
 {
-	struct snd_soc_component *component = codec_dai->component;
+	int val;
 	int ret;
+	unsigned int reg;
+
+	ret = regmap_read(tscs42xx->regmap, R_DEVIDH, &reg);
+	if (ret < 0)
+		return ret;
 
-	switch (clk_id) {
+	val = reg << 8;
+	ret = regmap_read(tscs42xx->regmap, R_DEVIDL, &reg);
+	if (ret < 0)
+		return ret;
+
+	val |= reg;
+
+	switch (val) {
+	case 0x4A74:
+	case 0x4A73:
+		return true;
+	default:
+		return false;
+	};
+}
+
+static int set_sysclk(struct snd_soc_component *component)
+{
+	struct tscs42xx *tscs42xx = snd_soc_component_get_drvdata(component);
+	unsigned long freq;
+	int ret;
+
+	switch (tscs42xx->sysclk_src_id) {
 	case TSCS42XX_PLL_SRC_XTAL:
 	case TSCS42XX_PLL_SRC_MCLK1:
 		ret = snd_soc_component_write(component, R_PLLREFSEL,
@@ -1285,6 +1322,7 @@ static int tscs42xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 		return -EINVAL;
 	}
 
+	freq = clk_get_rate(tscs42xx->sysclk);
 	ret = set_pll_ctl_from_input_freq(component, freq);
 	if (ret < 0) {
 		dev_err(component->dev,
@@ -1295,41 +1333,13 @@ static int tscs42xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 	return 0;
 }
 
-static const struct snd_soc_dai_ops tscs42xx_dai_ops = {
-	.hw_params	= tscs42xx_hw_params,
-	.mute_stream	= tscs42xx_mute_stream,
-	.set_fmt	= tscs42xx_set_dai_fmt,
-	.set_bclk_ratio = tscs42xx_set_dai_bclk_ratio,
-	.set_sysclk	= tscs42xx_set_dai_sysclk,
-};
-
-static int part_is_valid(struct tscs42xx *tscs42xx)
+static int tscs42xx_probe(struct snd_soc_component *component)
 {
-	int val;
-	int ret;
-	unsigned int reg;
-
-	ret = regmap_read(tscs42xx->regmap, R_DEVIDH, &reg);
-	if (ret < 0)
-		return ret;
-
-	val = reg << 8;
-	ret = regmap_read(tscs42xx->regmap, R_DEVIDL, &reg);
-	if (ret < 0)
-		return ret;
-
-	val |= reg;
-
-	switch (val) {
-	case 0x4A74:
-	case 0x4A73:
-		return true;
-	default:
-		return false;
-	};
+	return set_sysclk(component);
 }
 
 static const struct snd_soc_component_driver soc_codec_dev_tscs42xx = {
+	.probe			= tscs42xx_probe,
 	.dapm_widgets		= tscs42xx_dapm_widgets,
 	.num_dapm_widgets	= ARRAY_SIZE(tscs42xx_dapm_widgets),
 	.dapm_routes		= tscs42xx_intercon,
@@ -1387,11 +1397,15 @@ static const struct reg_sequence tscs42xx_patch[] = {
 	{ R_AIC2, RV_AIC2_BLRCM_DAC_BCLK_LRCLK_SHARED },
 };
 
+static char const * const src_names[TSCS42XX_PLL_SRC_CNT] = {
+	"xtal", "mclk1", "mclk2"};
+
 static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 		const struct i2c_device_id *id)
 {
 	struct tscs42xx *tscs42xx;
-	int ret = 0;
+	int src;
+	int ret;
 
 	tscs42xx = devm_kzalloc(&i2c->dev, sizeof(*tscs42xx), GFP_KERNEL);
 	if (!tscs42xx) {
@@ -1402,6 +1416,24 @@ static int tscs42xx_i2c_probe(struct i2c_client *i2c,
 	}
 	i2c_set_clientdata(i2c, tscs42xx);
 
+	for (src = TSCS42XX_PLL_SRC_XTAL; src < TSCS42XX_PLL_SRC_CNT; src++) {
+		tscs42xx->sysclk = devm_clk_get(&i2c->dev, src_names[src]);
+		if (!IS_ERR(tscs42xx->sysclk)) {
+			break;
+		} else if (PTR_ERR(tscs42xx->sysclk) != -ENOENT) {
+			ret = PTR_ERR(tscs42xx->sysclk);
+			dev_err(&i2c->dev, "Failed to get sysclk (%d)\n", ret);
+			return ret;
+		}
+	}
+	if (src == TSCS42XX_PLL_SRC_CNT) {
+		ret = -EINVAL;
+		dev_err(&i2c->dev, "Failed to get a valid clock name (%d)\n",
+				ret);
+		return ret;
+	}
+	tscs42xx->sysclk_src_id = src;
+
 	tscs42xx->regmap = devm_regmap_init_i2c(i2c, &tscs42xx_regmap);
 	if (IS_ERR(tscs42xx->regmap)) {
 		ret = PTR_ERR(tscs42xx->regmap);
diff --git a/sound/soc/codecs/tscs42xx.h b/sound/soc/codecs/tscs42xx.h
index d4a30bcbf64b..814c8f3c4a68 100644
--- a/sound/soc/codecs/tscs42xx.h
+++ b/sound/soc/codecs/tscs42xx.h
@@ -7,10 +7,10 @@
 #define __WOOKIE_H__
 
 enum {
-	TSCS42XX_PLL_SRC_NONE,
 	TSCS42XX_PLL_SRC_XTAL,
 	TSCS42XX_PLL_SRC_MCLK1,
 	TSCS42XX_PLL_SRC_MCLK2,
+	TSCS42XX_PLL_SRC_CNT,
 };
 
 #define R_HPVOLL        0x0
-- 
2.15.1