[PATCH v7 0/3] Add ES8328 audio codec

[PATCH v7 0/3] Add ES8328 audio codec

[Sean Cross]

This patchset adds support for the Everest Semi ES8328 audio codec.  It also
adds support for using the es8328 on IMX boards.

We write a machine driver rather than using simple-card because the machine
driver needs to support regulators for the speaker amps and as well as
supporting headphone jacks, in addition to the i.MX audmux routing.

Changes since v6:
    - Minor clarification of AUDMUX in imx-audio-es8328.txt
    - Use u32 instead of int in imx-es8328.c for int-mux and ext-mux
    - Bounds checking on mux-int-port and mux-ext-port in imx-es8328.c
    - Remove NULL checks before calling of_node_put()

Changes since v5:
    - Removed empty imx_set_frequency function from imx-es8328.c
    - Move the clock from imx-audio-es8328 to the es8328 codec itself
    - Add support for 2x (22.5792 MHz) and 1x (11.2896 MHz) source clocks
    - Restore registers on resume
    - Document pins for ES8328, including input pins

Changes since v4:
    - Simplify clock handling and use assigned-clock-parents
    - Move the codec regulator from the machine driver to the codec
    - Specify all four regulators, and require their presence
    - Fix audio recording, such that it enables the PGA

Changes since v3:
    - Add OF bindings for everest,es8328
    - Add back in patch to add everest as a vendor prefix
    - Give clocks more generic names
    - Document required clocks in DT bindings document

Changes since v2:
    - Change deemph to a bool, and update based on sample rate
    - Replace value enums with regular enums
    - Break SPI and I2C drivers into their own modules
    - Rename everest,es8328 to es8328 as the module wasn't getting detected.
      Because of this, the patch to vendor-prefixes.txt has been dropped.

Changes since v1:
    - Rename HP/Speaker to OUT1/OUT2
    - Use DAPM widgets for startup/shutdown
    - Add regulator support to machine driver

Sean Cross (3):
  devicetree: bindings: Add Everest Semicodunctor
  ASoC: add es8328 codec driver
  ASoC: fsl: add imx-es8328 machine driver

 Documentation/devicetree/bindings/sound/es8328.txt |  38 ++
 .../devicetree/bindings/sound/imx-audio-es8328.txt |  61 ++
 .../devicetree/bindings/vendor-prefixes.txt        |   1 +
 sound/soc/codecs/Kconfig                           |  13 +
 sound/soc/codecs/Makefile                          |   6 +
 sound/soc/codecs/es8328-i2c.c                      |  60 ++
 sound/soc/codecs/es8328-spi.c                      |  49 ++
 sound/soc/codecs/es8328.c                          | 719 +++++++++++++++++++++
 sound/soc/codecs/es8328.h                          | 314 +++++++++
 sound/soc/fsl/Kconfig                              |  14 +
 sound/soc/fsl/Makefile                             |   2 +
 sound/soc/fsl/imx-es8328.c                         | 233 +++++++
 12 files changed, 1510 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/es8328.txt
 create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-es8328.txt
 create mode 100644 sound/soc/codecs/es8328-i2c.c
 create mode 100644 sound/soc/codecs/es8328-spi.c
 create mode 100644 sound/soc/codecs/es8328.c
 create mode 100644 sound/soc/codecs/es8328.h
 create mode 100644 sound/soc/fsl/imx-es8328.c

-- 
2.0.0

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[PATCH v7 1/3] devicetree: bindings: Add Everest Semicodunctor

[Sean Cross]

Everest Semiconductor makes audio codecs.

Signed-off-by: Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 4d7f375..2d88c10 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -46,6 +46,7 @@ epfl	Ecole Polytechnique Fédérale de Lausanne
 epson	Seiko Epson Corp.
 est	ESTeem Wireless Modems
 eukrea  Eukréa Electromatique
+everest	Everest Semiconductor Co. Ltd.
 excito	Excito
 fsl	Freescale Semiconductor
 GEFanuc	GE Fanuc Intelligent Platforms Embedded Systems, Inc.
-- 
2.0.0

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[PATCH v7 2/3] ASoC: add es8328 codec driver

[Sean Cross]

Add a codec driver for the Everest ES8328.  It supports two separate audio
outputs and two separate audio inputs.

Signed-off-by: Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>
---
 Documentation/devicetree/bindings/sound/es8328.txt |  38 ++
 sound/soc/codecs/Kconfig                           |  13 +
 sound/soc/codecs/Makefile                          |   6 +
 sound/soc/codecs/es8328-i2c.c                      |  60 ++
 sound/soc/codecs/es8328-spi.c                      |  49 ++
 sound/soc/codecs/es8328.c                          | 719 +++++++++++++++++++++
 sound/soc/codecs/es8328.h                          | 314 +++++++++
 7 files changed, 1199 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/es8328.txt
 create mode 100644 sound/soc/codecs/es8328-i2c.c
 create mode 100644 sound/soc/codecs/es8328-spi.c
 create mode 100644 sound/soc/codecs/es8328.c
 create mode 100644 sound/soc/codecs/es8328.h

diff --git a/Documentation/devicetree/bindings/sound/es8328.txt b/Documentation/devicetree/bindings/sound/es8328.txt
new file mode 100644
index 0000000..30ea8a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/es8328.txt
@@ -0,0 +1,38 @@
+Everest ES8328 audio CODEC
+
+This device supports both I2C and SPI.
+
+Required properties:
+
+  - compatible : "everest,es8328"
+  - DVDD-supply : Regulator providing digital core supply voltage 1.8 - 3.6V
+  - AVDD-supply : Regulator providing analog supply voltage 3.3V
+  - PVDD-supply : Regulator providing digital IO supply voltage 1.8 - 3.6V
+  - IPVDD-supply : Regulator providing analog output voltage 3.3V
+  - clocks : A 22.5792 or 11.2896 MHz clock
+  - reg : the I2C address of the device for I2C, the chip select number for SPI
+
+Pins on the device (for linking into audio routes):
+
+  * LOUT1
+  * LOUT2
+  * ROUT1
+  * ROUT2
+  * LINPUT1
+  * RINPUT1
+  * LINPUT2
+  * RINPUT2
+  * Mic Bias
+
+
+Example:
+
+codec: es8328@11 {
+	compatible = "everest,es8328";
+	DVDD-supply = <&reg_3p3v>;
+	AVDD-supply = <&reg_3p3v>;
+	PVDD-supply = <&reg_3p3v>;
+	HPVDD-supply = <&reg_3p3v>;
+	clocks = <&clks 169>;
+	reg = <0x11>;
+};
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index cbfa1e1..6a509e3 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -56,6 +56,8 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_DA732X if I2C
 	select SND_SOC_DA9055 if I2C
 	select SND_SOC_BT_SCO
+	select SND_SOC_ES8328_SPI if SPI_MASTER
+	select SND_SOC_ES8328_I2C if I2C
 	select SND_SOC_ISABELLE if I2C
 	select SND_SOC_JZ4740_CODEC
 	select SND_SOC_LM4857 if I2C
@@ -396,6 +398,17 @@ config SND_SOC_DMIC
 config SND_SOC_HDMI_CODEC
        tristate "HDMI stub CODEC"
 
+config SND_SOC_ES8328
+	tristate "Everest Semi ES8328 CODEC"
+
+config SND_SOC_ES8328_I2C
+	tristate
+	select SND_SOC_ES8328
+
+config SND_SOC_ES8328_SPI
+	tristate
+	select SND_SOC_ES8328
+
 config SND_SOC_ISABELLE
         tristate
 
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index be3377b..66e7859 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -48,6 +48,9 @@ snd-soc-da732x-objs := da732x.o
 snd-soc-da9055-objs := da9055.o
 snd-soc-bt-sco-objs := bt-sco.o
 snd-soc-dmic-objs := dmic.o
+snd-soc-es8328-objs := es8328.o
+snd-soc-es8328-i2c-objs := es8328-i2c.o
+snd-soc-es8328-spi-objs := es8328-spi.o
 snd-soc-isabelle-objs := isabelle.o
 snd-soc-jz4740-codec-objs := jz4740.o
 snd-soc-l3-objs := l3.o
@@ -213,6 +216,9 @@ obj-$(CONFIG_SND_SOC_DA732X)	+= snd-soc-da732x.o
 obj-$(CONFIG_SND_SOC_DA9055)	+= snd-soc-da9055.o
 obj-$(CONFIG_SND_SOC_BT_SCO)	+= snd-soc-bt-sco.o
 obj-$(CONFIG_SND_SOC_DMIC)	+= snd-soc-dmic.o
+obj-$(CONFIG_SND_SOC_ES8328)	+= snd-soc-es8328.o
+obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o
+obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o
 obj-$(CONFIG_SND_SOC_ISABELLE)	+= snd-soc-isabelle.o
 obj-$(CONFIG_SND_SOC_JZ4740_CODEC)	+= snd-soc-jz4740-codec.o
 obj-$(CONFIG_SND_SOC_L3)	+= snd-soc-l3.o
diff --git a/sound/soc/codecs/es8328-i2c.c b/sound/soc/codecs/es8328-i2c.c
new file mode 100644
index 0000000..aae410d
--- /dev/null
+++ b/sound/soc/codecs/es8328-i2c.c
@@ -0,0 +1,60 @@
+/*
+ * es8328-i2c.c  --  ES8328 ALSA SoC I2C Audio driver
+ *
+ * Copyright 2014 Sutajio Ko-Usagi PTE LTD
+ *
+ * Author: Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+
+#include <sound/soc.h>
+
+#include "es8328.h"
+
+static const struct i2c_device_id es8328_id[] = {
+	{ "everest,es8328", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, es8328_id);
+
+static const struct of_device_id es8328_of_match[] = {
+	{ .compatible = "everest,es8328", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, es8328_of_match);
+
+static int es8328_i2c_probe(struct i2c_client *i2c,
+			    const struct i2c_device_id *id)
+{
+	return es8328_probe(&i2c->dev,
+			devm_regmap_init_i2c(i2c, &es8328_regmap_config));
+}
+
+static int es8328_i2c_remove(struct i2c_client *i2c)
+{
+	snd_soc_unregister_codec(&i2c->dev);
+	return 0;
+}
+
+static struct i2c_driver es8328_i2c_driver = {
+	.driver = {
+		.name		= "es8328",
+		.of_match_table = es8328_of_match,
+	},
+	.probe    = es8328_i2c_probe,
+	.remove   = es8328_i2c_remove,
+	.id_table = es8328_id,
+};
+
+module_i2c_driver(es8328_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC ES8328 audio CODEC I2C driver");
+MODULE_AUTHOR("Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/es8328-spi.c b/sound/soc/codecs/es8328-spi.c
new file mode 100644
index 0000000..8fbd935
--- /dev/null
+++ b/sound/soc/codecs/es8328-spi.c
@@ -0,0 +1,49 @@
+/*
+ * es8328.c  --  ES8328 ALSA SoC SPI Audio driver
+ *
+ * Copyright 2014 Sutajio Ko-Usagi PTE LTD
+ *
+ * Author: Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spi/spi.h>
+#include <sound/soc.h>
+#include "es8328.h"
+
+static const struct of_device_id es8328_of_match[] = {
+	{ .compatible = "everest,es8328", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, es8328_of_match);
+
+static int es8328_spi_probe(struct spi_device *spi)
+{
+	return es8328_probe(&spi->dev,
+			devm_regmap_init_spi(spi, &es8328_regmap_config));
+}
+
+static int es8328_spi_remove(struct spi_device *spi)
+{
+	snd_soc_unregister_codec(&spi->dev);
+	return 0;
+}
+
+static struct spi_driver es8328_spi_driver = {
+	.driver = {
+		.name		= "es8328",
+		.of_match_table	= es8328_of_match,
+	},
+	.probe	= es8328_spi_probe,
+	.remove	= es8328_spi_remove,
+};
+
+module_spi_driver(es8328_spi_driver);
+MODULE_DESCRIPTION("ASoC ES8328 audio CODEC SPI driver");
+MODULE_AUTHOR("Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/es8328.c b/sound/soc/codecs/es8328.c
new file mode 100644
index 0000000..598dcb8
--- /dev/null
+++ b/sound/soc/codecs/es8328.c
@@ -0,0 +1,719 @@
+/*
+ * es8328.c  --  ES8328 ALSA SoC Audio driver
+ *
+ * Copyright 2014 Sutajio Ko-Usagi PTE LTD
+ *
+ * Author: Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/of_device.h>
+#include <linux/module.h>
+#include <linux/pm.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/regulator/consumer.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include "es8328.h"
+
+/* Run the codec at 22.5792 or 11.2896 MHz to support these rates */
+enum es8328_rate {
+	ES8328_RATE_8019,
+	ES8328_RATE_11025,
+	ES8328_RATE_22050,
+	ES8328_RATE_44100,
+};
+
+#define ES8328_SYSCLK_RATE_1X 11289600
+#define ES8328_SYSCLK_RATE_2X 22579200
+
+uint8_t es8328_sample_ratios[] = {
+	[ES8328_RATE_8019]  = 0x9,
+	[ES8328_RATE_11025] = 0x7,
+	[ES8328_RATE_22050] = 0x4,
+	[ES8328_RATE_44100] = 0x2,
+};
+
+/* regulator supplies for sgtl5000, VDDD is an optional external supply */
+enum sgtl5000_regulator_supplies {
+	DVDD,
+	AVDD,
+	PVDD,
+	HPVDD,
+	ES8328_SUPPLY_NUM
+};
+
+/* vddd is optional supply */
+static const char * const supply_names[ES8328_SUPPLY_NUM] = {
+	"DVDD",
+	"AVDD",
+	"PVDD",
+	"HPVDD",
+};
+
+#define ES8328_RATES (SNDRV_PCM_RATE_44100 | \
+		SNDRV_PCM_RATE_22050 | \
+		SNDRV_PCM_RATE_11025)
+#define ES8328_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
+
+struct es8328_priv {
+	struct regmap *regmap;
+	struct clk *clk;
+	int playback_fs;
+	bool deemph;
+	struct regulator_bulk_data supplies[ES8328_SUPPLY_NUM];
+};
+
+/*
+ * ES8328 Controls
+ */
+
+static const char * const adcpol_txt[] = {"Normal", "L Invert", "R Invert",
+					  "L + R Invert"};
+static SOC_ENUM_SINGLE_DECL(adcpol,
+			    ES8328_ADCCONTROL6, 6, adcpol_txt);
+
+static const DECLARE_TLV_DB_SCALE(play_tlv, -3000, 100, 0);
+static const DECLARE_TLV_DB_SCALE(dac_adc_tlv, -9600, 50, 0);
+static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 300, 0);
+static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
+static const DECLARE_TLV_DB_SCALE(mic_tlv, 0, 300, 0);
+
+static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
+
+static int es8328_set_deemph(struct snd_soc_codec *codec)
+{
+	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
+	int val, i, best;
+
+	/*
+	 * If we're using deemphasis select the nearest available sample
+	 * rate.
+	 */
+	if (es8328->deemph) {
+		best = 1;
+		for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
+			if (abs(deemph_settings[i] - es8328->playback_fs) <
+			    abs(deemph_settings[best] - es8328->playback_fs))
+				best = i;
+		}
+
+		val = best << 1;
+	} else {
+		val = 0;
+	}
+
+	dev_dbg(codec->dev, "Set deemphasis %d\n", val);
+
+	return snd_soc_update_bits(codec, ES8328_DACCONTROL6, 0x6, val);
+}
+
+static int es8328_get_deemph(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
+
+	ucontrol->value.enumerated.item[0] = es8328->deemph;
+	return 0;
+}
+
+static int es8328_put_deemph(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
+	int deemph = ucontrol->value.enumerated.item[0];
+	int ret;
+
+	if (deemph > 1)
+		return -EINVAL;
+
+	ret = es8328_set_deemph(codec);
+	if (ret < 0)
+		return ret;
+
+	es8328->deemph = deemph;
+
+	return 0;
+}
+
+
+
+static const struct snd_kcontrol_new es8328_snd_controls[] = {
+	SOC_DOUBLE_R_TLV("Capture Digital Volume",
+		ES8328_ADCCONTROL8, ES8328_ADCCONTROL9,
+		 0, 0xc0, 1, dac_adc_tlv),
+	SOC_SINGLE("Capture ZC Switch", ES8328_ADCCONTROL7, 6, 1, 0),
+
+	SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
+		    es8328_get_deemph, es8328_put_deemph),
+
+	SOC_ENUM("Capture Polarity", adcpol),
+
+	SOC_SINGLE_TLV("Left Mixer Left Bypass Volume",
+			ES8328_DACCONTROL17, 3, 7, 1, bypass_tlv),
+	SOC_SINGLE_TLV("Left Mixer Right Bypass Volume",
+			ES8328_DACCONTROL19, 3, 7, 1, bypass_tlv),
+	SOC_SINGLE_TLV("Right Mixer Left Bypass Volume",
+			ES8328_DACCONTROL18, 3, 7, 1, bypass_tlv),
+	SOC_SINGLE_TLV("Right Mixer Right Bypass Volume",
+			ES8328_DACCONTROL20, 3, 7, 1, bypass_tlv),
+
+	SOC_DOUBLE_R_TLV("PCM Volume",
+			ES8328_LDACVOL, ES8328_RDACVOL,
+			0, ES8328_DACVOL_MAX, 1, dac_adc_tlv),
+
+	SOC_DOUBLE_R_TLV("Output 1 Playback Volume",
+			ES8328_LOUT1VOL, ES8328_ROUT1VOL,
+			0, ES8328_OUT1VOL_MAX, 0, play_tlv),
+
+	SOC_DOUBLE_R_TLV("Output 2 Playback Volume",
+			ES8328_LOUT2VOL, ES8328_ROUT2VOL,
+			0, ES8328_OUT2VOL_MAX, 0, play_tlv),
+
+	SOC_DOUBLE_TLV("Mic PGA Volume", ES8328_ADCCONTROL1,
+			4, 0, 8, 0, mic_tlv),
+};
+
+/*
+ * DAPM Controls
+ */
+
+static const char * const es8328_line_texts[] = {
+	"Line 1", "Line 2", "PGA", "Differential"};
+
+static const struct soc_enum es8328_lline_enum =
+	SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 3,
+			      ARRAY_SIZE(es8328_line_texts),
+			      es8328_line_texts);
+static const struct snd_kcontrol_new es8328_left_line_controls =
+	SOC_DAPM_ENUM("Route", es8328_lline_enum);
+
+static const struct soc_enum es8328_rline_enum =
+	SOC_ENUM_SINGLE(ES8328_DACCONTROL16, 0,
+			      ARRAY_SIZE(es8328_line_texts),
+			      es8328_line_texts);
+static const struct snd_kcontrol_new es8328_right_line_controls =
+	SOC_DAPM_ENUM("Route", es8328_lline_enum);
+
+/* Left Mixer */
+static const struct snd_kcontrol_new es8328_left_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL17, 8, 1, 0),
+	SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL17, 7, 1, 0),
+	SOC_DAPM_SINGLE("Right Playback Switch", ES8328_DACCONTROL18, 8, 1, 0),
+	SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL18, 7, 1, 0),
+};
+
+/* Right Mixer */
+static const struct snd_kcontrol_new es8328_right_mixer_controls[] = {
+	SOC_DAPM_SINGLE("Left Playback Switch", ES8328_DACCONTROL19, 8, 1, 0),
+	SOC_DAPM_SINGLE("Left Bypass Switch", ES8328_DACCONTROL19, 7, 1, 0),
+	SOC_DAPM_SINGLE("Playback Switch", ES8328_DACCONTROL20, 8, 1, 0),
+	SOC_DAPM_SINGLE("Right Bypass Switch", ES8328_DACCONTROL20, 7, 1, 0),
+};
+
+static const char * const es8328_pga_sel[] = {
+	"Line 1", "Line 2", "Line 3", "Differential"};
+
+/* Left PGA Mux */
+static const struct soc_enum es8328_lpga_enum =
+	SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 6,
+			      ARRAY_SIZE(es8328_pga_sel),
+			      es8328_pga_sel);
+static const struct snd_kcontrol_new es8328_left_pga_controls =
+	SOC_DAPM_ENUM("Route", es8328_lpga_enum);
+
+/* Right PGA Mux */
+static const struct soc_enum es8328_rpga_enum =
+	SOC_ENUM_SINGLE(ES8328_ADCCONTROL2, 4,
+			      ARRAY_SIZE(es8328_pga_sel),
+			      es8328_pga_sel);
+static const struct snd_kcontrol_new es8328_right_pga_controls =
+	SOC_DAPM_ENUM("Route", es8328_rpga_enum);
+
+/* Differential Mux */
+static const char * const es8328_diff_sel[] = {"Line 1", "Line 2"};
+static SOC_ENUM_SINGLE_DECL(diffmux,
+			    ES8328_ADCCONTROL3, 7, es8328_diff_sel);
+static const struct snd_kcontrol_new es8328_diffmux_controls =
+	SOC_DAPM_ENUM("Route", diffmux);
+
+/* Mono ADC Mux */
+static const char * const es8328_mono_mux[] = {"Stereo", "Mono (Left)",
+	"Mono (Right)", "Digital Mono"};
+static SOC_ENUM_SINGLE_DECL(monomux,
+			    ES8328_ADCCONTROL3, 3, es8328_mono_mux);
+static const struct snd_kcontrol_new es8328_monomux_controls =
+	SOC_DAPM_ENUM("Route", monomux);
+
+static const struct snd_soc_dapm_widget es8328_dapm_widgets[] = {
+	SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
+		&es8328_diffmux_controls),
+	SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
+		&es8328_monomux_controls),
+	SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
+		&es8328_monomux_controls),
+
+	SND_SOC_DAPM_MUX("Left PGA Mux", ES8328_ADCPOWER,
+			ES8328_ADCPOWER_AINL_OFF, 1,
+			&es8328_left_pga_controls),
+	SND_SOC_DAPM_MUX("Right PGA Mux", ES8328_ADCPOWER,
+			ES8328_ADCPOWER_AINR_OFF, 1,
+			&es8328_right_pga_controls),
+
+	SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
+		&es8328_left_line_controls),
+	SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
+		&es8328_right_line_controls),
+
+	SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ES8328_ADCPOWER,
+			ES8328_ADCPOWER_ADCR_OFF, 1),
+	SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ES8328_ADCPOWER,
+			ES8328_ADCPOWER_ADCL_OFF, 1),
+
+	SND_SOC_DAPM_SUPPLY("Mic Bias", ES8328_ADCPOWER,
+			ES8328_ADCPOWER_MIC_BIAS_OFF, 1, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("Mic Bias Gen", ES8328_ADCPOWER,
+			ES8328_ADCPOWER_ADC_BIAS_GEN_OFF, 1, NULL, 0),
+
+	SND_SOC_DAPM_DAC("Right DAC", "Right Playback", ES8328_DACPOWER,
+			ES8328_DACPOWER_RDAC_OFF, 1),
+	SND_SOC_DAPM_DAC("Left DAC", "Left Playback", ES8328_DACPOWER,
+			ES8328_DACPOWER_LDAC_OFF, 1),
+
+	SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
+		&es8328_left_mixer_controls[0],
+		ARRAY_SIZE(es8328_left_mixer_controls)),
+	SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
+		&es8328_right_mixer_controls[0],
+		ARRAY_SIZE(es8328_right_mixer_controls)),
+
+	SND_SOC_DAPM_PGA("Right Out 2", ES8328_DACPOWER,
+			ES8328_DACPOWER_ROUT2_ON, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Left Out 2", ES8328_DACPOWER,
+			ES8328_DACPOWER_LOUT2_ON, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Right Out 1", ES8328_DACPOWER,
+			ES8328_DACPOWER_ROUT1_ON, 0, NULL, 0),
+	SND_SOC_DAPM_PGA("Left Out 1", ES8328_DACPOWER,
+			ES8328_DACPOWER_LOUT1_ON, 0, NULL, 0),
+
+	SND_SOC_DAPM_OUTPUT("LOUT1"),
+	SND_SOC_DAPM_OUTPUT("ROUT1"),
+	SND_SOC_DAPM_OUTPUT("LOUT2"),
+	SND_SOC_DAPM_OUTPUT("ROUT2"),
+
+	SND_SOC_DAPM_INPUT("LINPUT1"),
+	SND_SOC_DAPM_INPUT("LINPUT2"),
+	SND_SOC_DAPM_INPUT("RINPUT1"),
+	SND_SOC_DAPM_INPUT("RINPUT2"),
+};
+
+static const struct snd_soc_dapm_route es8328_dapm_routes[] = {
+
+	{ "Left Line Mux", "Line 1", "LINPUT1" },
+	{ "Left Line Mux", "Line 2", "LINPUT2" },
+	{ "Left Line Mux", "PGA", "Left PGA Mux" },
+	{ "Left Line Mux", "Differential", "Differential Mux" },
+
+	{ "Right Line Mux", "Line 1", "RINPUT1" },
+	{ "Right Line Mux", "Line 2", "RINPUT2" },
+	{ "Right Line Mux", "PGA", "Right PGA Mux" },
+	{ "Right Line Mux", "Differential", "Differential Mux" },
+
+	{ "Left PGA Mux", "Line 1", "LINPUT1" },
+	{ "Left PGA Mux", "Line 2", "LINPUT2" },
+	{ "Left PGA Mux", "Differential", "Differential Mux" },
+
+	{ "Right PGA Mux", "Line 1", "RINPUT1" },
+	{ "Right PGA Mux", "Line 2", "RINPUT2" },
+	{ "Right PGA Mux", "Differential", "Differential Mux" },
+
+	{ "Differential Mux", "Line 1", "LINPUT1" },
+	{ "Differential Mux", "Line 1", "RINPUT1" },
+	{ "Differential Mux", "Line 2", "LINPUT2" },
+	{ "Differential Mux", "Line 2", "RINPUT2" },
+
+	{ "Left ADC Mux", "Stereo", "Left PGA Mux" },
+	{ "Left ADC Mux", "Mono (Left)", "Left PGA Mux" },
+	{ "Left ADC Mux", "Digital Mono", "Left PGA Mux" },
+
+	{ "Right ADC Mux", "Stereo", "Right PGA Mux" },
+	{ "Right ADC Mux", "Mono (Right)", "Right PGA Mux" },
+	{ "Right ADC Mux", "Digital Mono", "Right PGA Mux" },
+
+	{ "Left ADC", NULL, "Left ADC Mux" },
+	{ "Right ADC", NULL, "Right ADC Mux" },
+
+	{ "Mic Bias", NULL, "Mic Bias Gen" },
+
+	{ "Left Line Mux", "Line 1", "LINPUT1" },
+	{ "Left Line Mux", "Line 2", "LINPUT2" },
+	{ "Left Line Mux", "PGA", "Left PGA Mux" },
+	{ "Left Line Mux", "Differential", "Differential Mux" },
+
+	{ "Right Line Mux", "Line 1", "RINPUT1" },
+	{ "Right Line Mux", "Line 2", "RINPUT2" },
+	{ "Right Line Mux", "PGA", "Right PGA Mux" },
+	{ "Right Line Mux", "Differential", "Differential Mux" },
+
+	{ "Left Out 1", NULL, "Left DAC" },
+	{ "Right Out 1", NULL, "Right DAC" },
+	{ "Left Out 2", NULL, "Left DAC" },
+	{ "Right Out 2", NULL, "Right DAC" },
+
+	{ "Left Mixer", "Playback Switch", "Left DAC" },
+	{ "Left Mixer", "Left Bypass Switch", "Left Line Mux" },
+	{ "Left Mixer", "Right Playback Switch", "Right DAC" },
+	{ "Left Mixer", "Right Bypass Switch", "Right Line Mux" },
+
+	{ "Right Mixer", "Left Playback Switch", "Left DAC" },
+	{ "Right Mixer", "Left Bypass Switch", "Left Line Mux" },
+	{ "Right Mixer", "Playback Switch", "Right DAC" },
+	{ "Right Mixer", "Right Bypass Switch", "Right Line Mux" },
+
+	{ "Left Out 1", NULL, "Left Mixer" },
+	{ "LOUT1", NULL, "Left Out 1" },
+	{ "Right Out 1", NULL, "Right Mixer" },
+	{ "ROUT1", NULL, "Right Out 1" },
+
+	{ "Left Out 2", NULL, "Left Mixer" },
+	{ "LOUT2", NULL, "Left Out 2" },
+	{ "Right Out 2", NULL, "Right Mixer" },
+	{ "ROUT2", NULL, "Right Out 2" },
+};
+
+static int es8328_mute(struct snd_soc_dai *dai, int mute)
+{
+	return snd_soc_update_bits(dai->codec, ES8328_DACCONTROL3,
+			ES8328_DACCONTROL3_DACMUTE,
+			mute ? ES8328_DACCONTROL3_DACMUTE : 0);
+}
+
+static int es8328_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params,
+	struct snd_soc_dai *dai)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
+	int reg;
+	int clk_rate;
+	u8 val;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		reg = ES8328_DACCONTROL2;
+
+	else
+		reg = ES8328_ADCCONTROL5;
+
+	clk_rate = clk_get_rate(es8328->clk);
+
+	if ((clk_rate != ES8328_SYSCLK_RATE_1X) &&
+		(clk_rate != ES8328_SYSCLK_RATE_2X)) {
+		dev_err(codec->dev,
+			"%s: clock is running at %d Hz, not %d or %d Hz\n",
+			 __func__, clk_rate,
+			 ES8328_SYSCLK_RATE_1X, ES8328_SYSCLK_RATE_2X);
+		return -EINVAL;
+	}
+
+	switch (params_rate(params)) {
+	case 8000:
+		val = es8328_sample_ratios[ES8328_RATE_8019];
+		break;
+	case 11025:
+		val = es8328_sample_ratios[ES8328_RATE_11025];
+		break;
+	case 22050:
+		val = es8328_sample_ratios[ES8328_RATE_22050];
+		break;
+	case 44100:
+		val = es8328_sample_ratios[ES8328_RATE_44100];
+		break;
+	default:
+		dev_err(codec->dev, "%s: unknown rate %d\n",
+			 __func__, params_rate(params));
+		return -EINVAL;
+	}
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		es8328->playback_fs = params_rate(params);
+		es8328_set_deemph(codec);
+	}
+
+	return snd_soc_update_bits(codec, reg, ES8328_RATEMASK, val);
+}
+
+static int es8328_set_dai_fmt(struct snd_soc_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	struct es8328_priv *es8328 = snd_soc_codec_get_drvdata(codec);
+	int clk_rate;
+	u8 mode = ES8328_DACCONTROL1_DACWL_16;
+
+	/* set master/slave audio interface */
+	if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBM_CFM)
+		return -EINVAL;
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		mode |= ES8328_DACCONTROL1_DACFORMAT_I2S;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		mode |= ES8328_DACCONTROL1_DACFORMAT_RJUST;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		mode |= ES8328_DACCONTROL1_DACFORMAT_LJUST;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* clock inversion */
+	if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF)
+		return -EINVAL;
+
+	snd_soc_write(codec, ES8328_DACCONTROL1, mode);
+	snd_soc_write(codec, ES8328_ADCCONTROL4, mode);
+
+	/* Master serial port mode */
+	snd_soc_write(codec, ES8328_MASTERMODE, ES8328_MASTERMODE_MSC);
+
+	clk_rate = clk_get_rate(es8328->clk);
+	if (clk_rate == ES8328_SYSCLK_RATE_1X)
+		snd_soc_write(codec, ES8328_MASTERMODE,
+				ES8328_MASTERMODE_MSC);
+	else
+		snd_soc_write(codec, ES8328_MASTERMODE,
+				ES8328_MASTERMODE_MCLKDIV2 |
+				ES8328_MASTERMODE_MSC);
+
+	return 0;
+}
+
+static int es8328_set_bias_level(struct snd_soc_codec *codec,
+				 enum snd_soc_bias_level level)
+{
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+
+	case SND_SOC_BIAS_PREPARE:
+		/* VREF, VMID=2x50k, digital enabled */
+		snd_soc_write(codec, ES8328_CHIPPOWER, 0);
+		snd_soc_update_bits(codec, ES8328_CONTROL1,
+				ES8328_CONTROL1_VMIDSEL_MASK |
+				ES8328_CONTROL1_ENREF,
+				ES8328_CONTROL1_VMIDSEL_50k |
+				ES8328_CONTROL1_ENREF);
+		break;
+
+	case SND_SOC_BIAS_STANDBY:
+		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+			snd_soc_update_bits(codec, ES8328_CONTROL1,
+					ES8328_CONTROL1_VMIDSEL_MASK |
+					ES8328_CONTROL1_ENREF,
+					ES8328_CONTROL1_VMIDSEL_5k |
+					ES8328_CONTROL1_ENREF);
+
+			/* Charge caps */
+			msleep(100);
+		}
+
+		snd_soc_write(codec, ES8328_CONTROL2,
+				ES8328_CONTROL2_OVERCURRENT_ON |
+				ES8328_CONTROL2_THERMAL_SHUTDOWN_ON);
+
+		/* VREF, VMID=2*500k, digital stopped */
+		snd_soc_update_bits(codec, ES8328_CONTROL1,
+				ES8328_CONTROL1_VMIDSEL_MASK |
+				ES8328_CONTROL1_ENREF,
+				ES8328_CONTROL1_VMIDSEL_500k |
+				ES8328_CONTROL1_ENREF);
+		snd_soc_write(codec, ES8328_CHIPPOWER,
+				ES8328_CHIPPOWER_DACDIG_OFF |
+				ES8328_CHIPPOWER_ADCDIG_OFF |
+				ES8328_CHIPPOWER_ADCVREF_OFF |
+				ES8328_CHIPPOWER_DACVREF_OFF);
+		break;
+
+	case SND_SOC_BIAS_OFF:
+		snd_soc_update_bits(codec, ES8328_CONTROL1,
+				ES8328_CONTROL1_VMIDSEL_MASK |
+				ES8328_CONTROL1_ENREF,
+				0);
+		snd_soc_write(codec, ES8328_CHIPPOWER,
+				ES8328_CHIPPOWER_ADCDIG_OFF |
+				ES8328_CHIPPOWER_DACDIG_OFF |
+				ES8328_CHIPPOWER_ADCSTM_RESET |
+				ES8328_CHIPPOWER_DACSTM_RESET |
+				ES8328_CHIPPOWER_ADCPLL_OFF |
+				ES8328_CHIPPOWER_DACPLL_OFF |
+				ES8328_CHIPPOWER_ADCVREF_OFF |
+				ES8328_CHIPPOWER_DACVREF_OFF);
+		break;
+	}
+	codec->dapm.bias_level = level;
+	return 0;
+}
+
+static const struct snd_soc_dai_ops es8328_dai_ops = {
+	.hw_params	= es8328_hw_params,
+	.digital_mute	= es8328_mute,
+	.set_fmt	= es8328_set_dai_fmt,
+};
+
+static struct snd_soc_dai_driver es8328_dai = {
+	.name = "es8328-hifi-analog",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = ES8328_RATES,
+		.formats = ES8328_FORMATS,
+	},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = ES8328_RATES,
+		.formats = ES8328_FORMATS,
+	},
+	.ops = &es8328_dai_ops,
+};
+
+static int es8328_suspend(struct snd_soc_codec *codec)
+{
+	es8328_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	return 0;
+}
+
+static int es8328_resume(struct snd_soc_codec *codec)
+{
+	struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
+
+	regcache_mark_dirty(regmap);
+	regcache_sync(regmap);
+
+	es8328_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+	return 0;
+}
+
+static int es8328_codec_probe(struct snd_soc_codec *codec)
+{
+	struct es8328_priv *es8328;
+	int ret;
+	int i;
+
+	es8328 = snd_soc_codec_get_drvdata(codec);
+
+	for (i = 0; i < ARRAY_SIZE(es8328->supplies); i++)
+		es8328->supplies[i].supply = supply_names[i];
+
+	ret = devm_regulator_bulk_get(codec->dev, ARRAY_SIZE(es8328->supplies),
+				es8328->supplies);
+	if (ret) {
+		dev_err(codec->dev, "unable to get regulators\n");
+		return ret;
+	}
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(es8328->supplies),
+					es8328->supplies);
+	if (ret) {
+		dev_err(codec->dev, "unable to enable regulators\n");
+		return ret;
+	}
+
+	/* Setup clocks */
+	es8328->clk = devm_clk_get(codec->dev, NULL);
+	if (IS_ERR(es8328->clk)) {
+		dev_err(codec->dev, "codec clock missing or invalid\n");
+		goto clk_fail;
+	}
+
+	ret = clk_prepare_enable(es8328->clk);
+	if (ret) {
+		dev_err(codec->dev, "unable to prepare codec clk\n");
+		goto clk_fail;
+	}
+
+	return 0;
+
+clk_fail:
+	regulator_bulk_disable(ARRAY_SIZE(es8328->supplies),
+			       es8328->supplies);
+	return ret;
+}
+
+static int es8328_remove(struct snd_soc_codec *codec)
+{
+	struct es8328_priv *es8328;
+
+	es8328 = snd_soc_codec_get_drvdata(codec);
+
+	if (es8328->clk)
+		clk_disable_unprepare(es8328->clk);
+
+	regulator_bulk_disable(ARRAY_SIZE(es8328->supplies),
+			       es8328->supplies);
+
+	return 0;
+}
+
+const struct regmap_config es8328_regmap_config = {
+	.reg_bits	= 8,
+	.val_bits	= 8,
+	.max_register	= ES8328_REG_MAX,
+	.cache_type	= REGCACHE_RBTREE,
+};
+EXPORT_SYMBOL_GPL(es8328_regmap_config);
+
+static struct snd_soc_codec_driver es8328_codec_driver = {
+	.probe		  = es8328_codec_probe,
+	.suspend	  = es8328_suspend,
+	.resume		  = es8328_resume,
+	.remove		  = es8328_remove,
+	.set_bias_level	  = es8328_set_bias_level,
+	.controls	  = es8328_snd_controls,
+	.num_controls	  = ARRAY_SIZE(es8328_snd_controls),
+	.dapm_widgets	  = es8328_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(es8328_dapm_widgets),
+	.dapm_routes	  = es8328_dapm_routes,
+	.num_dapm_routes  = ARRAY_SIZE(es8328_dapm_routes),
+};
+
+int es8328_probe(struct device *dev, struct regmap *regmap)
+{
+	struct es8328_priv *es8328;
+
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	es8328 = devm_kzalloc(dev, sizeof(*es8328), GFP_KERNEL);
+	if (es8328 == NULL)
+		return -ENOMEM;
+
+	es8328->regmap = regmap;
+
+	dev_set_drvdata(dev, es8328);
+
+	return snd_soc_register_codec(dev,
+			&es8328_codec_driver, &es8328_dai, 1);
+}
+EXPORT_SYMBOL_GPL(es8328_probe);
+
+MODULE_DESCRIPTION("ASoC ES8328 driver");
+MODULE_AUTHOR("Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/es8328.h b/sound/soc/codecs/es8328.h
new file mode 100644
index 0000000..2c03c78
--- /dev/null
+++ b/sound/soc/codecs/es8328.h
@@ -0,0 +1,314 @@
+/*
+ * es8328.h  --  ES8328 ALSA SoC Audio driver
+ */
+
+#ifndef _ES8328_H
+#define _ES8328_H
+
+#include <linux/regmap.h>
+
+struct device;
+
+extern const struct regmap_config es8328_regmap_config;
+int es8328_probe(struct device *dev, struct regmap *regmap);
+
+#define ES8328_DACLVOL 46
+#define ES8328_DACRVOL 47
+#define ES8328_DACCTL 28
+#define ES8328_RATEMASK (0x1f << 0)
+
+#define ES8328_CONTROL1		0x00
+#define ES8328_CONTROL1_VMIDSEL_OFF (0 << 0)
+#define ES8328_CONTROL1_VMIDSEL_50k (1 << 0)
+#define ES8328_CONTROL1_VMIDSEL_500k (2 << 0)
+#define ES8328_CONTROL1_VMIDSEL_5k (3 << 0)
+#define ES8328_CONTROL1_VMIDSEL_MASK (7 << 0)
+#define ES8328_CONTROL1_ENREF (1 << 2)
+#define ES8328_CONTROL1_SEQEN (1 << 3)
+#define ES8328_CONTROL1_SAMEFS (1 << 4)
+#define ES8328_CONTROL1_DACMCLK_ADC (0 << 5)
+#define ES8328_CONTROL1_DACMCLK_DAC (1 << 5)
+#define ES8328_CONTROL1_LRCM (1 << 6)
+#define ES8328_CONTROL1_SCP_RESET (1 << 7)
+
+#define ES8328_CONTROL2		0x01
+#define ES8328_CONTROL2_VREF_BUF_OFF (1 << 0)
+#define ES8328_CONTROL2_VREF_LOWPOWER (1 << 1)
+#define ES8328_CONTROL2_IBIASGEN_OFF (1 << 2)
+#define ES8328_CONTROL2_ANALOG_OFF (1 << 3)
+#define ES8328_CONTROL2_VREF_BUF_LOWPOWER (1 << 4)
+#define ES8328_CONTROL2_VCM_MOD_LOWPOWER (1 << 5)
+#define ES8328_CONTROL2_OVERCURRENT_ON (1 << 6)
+#define ES8328_CONTROL2_THERMAL_SHUTDOWN_ON (1 << 7)
+
+#define ES8328_CHIPPOWER	0x02
+#define ES8328_CHIPPOWER_DACVREF_OFF (1 << 0)
+#define ES8328_CHIPPOWER_ADCVREF_OFF (1 << 1)
+#define ES8328_CHIPPOWER_DACPLL_OFF (1 << 2)
+#define ES8328_CHIPPOWER_ADCPLL_OFF (1 << 3)
+#define ES8328_CHIPPOWER_DACSTM_RESET (1 << 4)
+#define ES8328_CHIPPOWER_ADCSTM_RESET (1 << 5)
+#define ES8328_CHIPPOWER_DACDIG_OFF (1 << 6)
+#define ES8328_CHIPPOWER_ADCDIG_OFF (1 << 7)
+
+#define ES8328_ADCPOWER		0x03
+#define ES8328_ADCPOWER_INT1_LOWPOWER 0
+#define ES8328_ADCPOWER_FLASH_ADC_LOWPOWER 1
+#define ES8328_ADCPOWER_ADC_BIAS_GEN_OFF 2
+#define ES8328_ADCPOWER_MIC_BIAS_OFF 3
+#define ES8328_ADCPOWER_ADCR_OFF 4
+#define ES8328_ADCPOWER_ADCL_OFF 5
+#define ES8328_ADCPOWER_AINR_OFF 6
+#define ES8328_ADCPOWER_AINL_OFF 7
+
+#define ES8328_DACPOWER		0x04
+#define ES8328_DACPOWER_OUT3_ON 0
+#define ES8328_DACPOWER_MONO_ON 1
+#define ES8328_DACPOWER_ROUT2_ON 2
+#define ES8328_DACPOWER_LOUT2_ON 3
+#define ES8328_DACPOWER_ROUT1_ON 4
+#define ES8328_DACPOWER_LOUT1_ON 5
+#define ES8328_DACPOWER_RDAC_OFF 6
+#define ES8328_DACPOWER_LDAC_OFF 7
+
+#define ES8328_CHIPLOPOW1	0x05
+#define ES8328_CHIPLOPOW2	0x06
+#define ES8328_ANAVOLMANAG	0x07
+
+#define ES8328_MASTERMODE	0x08
+#define ES8328_MASTERMODE_BCLKDIV (0 << 0)
+#define ES8328_MASTERMODE_BCLK_INV (1 << 5)
+#define ES8328_MASTERMODE_MCLKDIV2 (1 << 6)
+#define ES8328_MASTERMODE_MSC (1 << 7)
+
+#define ES8328_ADCCONTROL1	0x09
+#define ES8328_ADCCONTROL2	0x0a
+#define ES8328_ADCCONTROL3	0x0b
+#define ES8328_ADCCONTROL4	0x0c
+#define ES8328_ADCCONTROL5	0x0d
+#define ES8328_ADCCONTROL5_RATEMASK (0x1f << 0)
+
+#define ES8328_ADCCONTROL6	0x0e
+
+#define ES8328_ADCCONTROL7	0x0f
+#define ES8328_ADCCONTROL7_ADC_MUTE (1 << 2)
+#define ES8328_ADCCONTROL7_ADC_LER (1 << 3)
+#define ES8328_ADCCONTROL7_ADC_ZERO_CROSS (1 << 4)
+#define ES8328_ADCCONTROL7_ADC_SOFT_RAMP (1 << 5)
+#define ES8328_ADCCONTROL7_ADC_RAMP_RATE_4 (0 << 6)
+#define ES8328_ADCCONTROL7_ADC_RAMP_RATE_8 (1 << 6)
+#define ES8328_ADCCONTROL7_ADC_RAMP_RATE_16 (2 << 6)
+#define ES8328_ADCCONTROL7_ADC_RAMP_RATE_32 (3 << 6)
+
+#define ES8328_ADCCONTROL8	0x10
+#define ES8328_ADCCONTROL9	0x11
+#define ES8328_ADCCONTROL10	0x12
+#define ES8328_ADCCONTROL11	0x13
+#define ES8328_ADCCONTROL12	0x14
+#define ES8328_ADCCONTROL13	0x15
+#define ES8328_ADCCONTROL14	0x16
+
+#define ES8328_DACCONTROL1	0x17
+#define ES8328_DACCONTROL1_DACFORMAT_I2S (0 << 1)
+#define ES8328_DACCONTROL1_DACFORMAT_LJUST (1 << 1)
+#define ES8328_DACCONTROL1_DACFORMAT_RJUST (2 << 1)
+#define ES8328_DACCONTROL1_DACFORMAT_PCM (3 << 1)
+#define ES8328_DACCONTROL1_DACWL_24 (0 << 3)
+#define ES8328_DACCONTROL1_DACWL_20 (1 << 3)
+#define ES8328_DACCONTROL1_DACWL_18 (2 << 3)
+#define ES8328_DACCONTROL1_DACWL_16 (3 << 3)
+#define ES8328_DACCONTROL1_DACWL_32 (4 << 3)
+#define ES8328_DACCONTROL1_DACLRP_I2S_POL_NORMAL (0 << 6)
+#define ES8328_DACCONTROL1_DACLRP_I2S_POL_INV (1 << 6)
+#define ES8328_DACCONTROL1_DACLRP_PCM_MSB_CLK2 (0 << 6)
+#define ES8328_DACCONTROL1_DACLRP_PCM_MSB_CLK1 (1 << 6)
+#define ES8328_DACCONTROL1_LRSWAP (1 << 7)
+
+#define ES8328_DACCONTROL2	0x18
+#define ES8328_DACCONTROL2_RATEMASK (0x1f << 0)
+#define ES8328_DACCONTROL2_DOUBLESPEED (1 << 5)
+
+#define ES8328_DACCONTROL3	0x19
+#define ES8328_DACCONTROL3_AUTOMUTE (1 << 2)
+#define ES8328_DACCONTROL3_DACMUTE (1 << 2)
+#define ES8328_DACCONTROL3_LEFTGAINVOL (1 << 3)
+#define ES8328_DACCONTROL3_DACZEROCROSS (1 << 4)
+#define ES8328_DACCONTROL3_DACSOFTRAMP (1 << 5)
+#define ES8328_DACCONTROL3_DACRAMPRATE (3 << 6)
+
+#define ES8328_LDACVOL 0x1a
+#define ES8328_LDACVOL_MASK (0 << 0)
+#define ES8328_LDACVOL_MAX (0xc0)
+
+#define ES8328_RDACVOL 0x1b
+#define ES8328_RDACVOL_MASK (0 << 0)
+#define ES8328_RDACVOL_MAX (0xc0)
+
+#define ES8328_DACVOL_MAX (0xc0)
+
+#define ES8328_DACCONTROL4	0x1a
+#define ES8328_DACCONTROL5	0x1b
+
+#define ES8328_DACCONTROL6	0x1c
+#define ES8328_DACCONTROL6_CLICKFREE (1 << 3)
+#define ES8328_DACCONTROL6_DAC_INVR (1 << 4)
+#define ES8328_DACCONTROL6_DAC_INVL (1 << 5)
+#define ES8328_DACCONTROL6_DEEMPH_OFF (0 << 6)
+#define ES8328_DACCONTROL6_DEEMPH_32k (1 << 6)
+#define ES8328_DACCONTROL6_DEEMPH_44_1k (2 << 6)
+#define ES8328_DACCONTROL6_DEEMPH_48k (3 << 6)
+
+#define ES8328_DACCONTROL7	0x1d
+#define ES8328_DACCONTROL7_VPP_SCALE_3p5	(0 << 0)
+#define ES8328_DACCONTROL7_VPP_SCALE_4p0	(1 << 0)
+#define ES8328_DACCONTROL7_VPP_SCALE_3p0	(2 << 0)
+#define ES8328_DACCONTROL7_VPP_SCALE_2p5	(3 << 0)
+#define ES8328_DACCONTROL7_SHELVING_STRENGTH (1 << 2) /* In eights */
+#define ES8328_DACCONTROL7_MONO		(1 << 5)
+#define ES8328_DACCONTROL7_ZEROR	(1 << 6)
+#define ES8328_DACCONTROL7_ZEROL	(1 << 7)
+
+/* Shelving filter */
+#define ES8328_DACCONTROL8	0x1e
+#define ES8328_DACCONTROL9	0x1f
+#define ES8328_DACCONTROL10	0x20
+#define ES8328_DACCONTROL11	0x21
+#define ES8328_DACCONTROL12	0x22
+#define ES8328_DACCONTROL13	0x23
+#define ES8328_DACCONTROL14	0x24
+#define ES8328_DACCONTROL15	0x25
+
+#define ES8328_DACCONTROL16	0x26
+#define ES8328_DACCONTROL16_RMIXSEL_RIN1 (0 << 0)
+#define ES8328_DACCONTROL16_RMIXSEL_RIN2 (1 << 0)
+#define ES8328_DACCONTROL16_RMIXSEL_RIN3 (2 << 0)
+#define ES8328_DACCONTROL16_RMIXSEL_RADC (3 << 0)
+#define ES8328_DACCONTROL16_LMIXSEL_LIN1 (0 << 3)
+#define ES8328_DACCONTROL16_LMIXSEL_LIN2 (1 << 3)
+#define ES8328_DACCONTROL16_LMIXSEL_LIN3 (2 << 3)
+#define ES8328_DACCONTROL16_LMIXSEL_LADC (3 << 3)
+
+#define ES8328_DACCONTROL17	0x27
+#define ES8328_DACCONTROL17_LI2LOVOL (7 << 3)
+#define ES8328_DACCONTROL17_LI2LO (1 << 6)
+#define ES8328_DACCONTROL17_LD2LO (1 << 7)
+
+#define ES8328_DACCONTROL18	0x28
+#define ES8328_DACCONTROL18_RI2LOVOL (7 << 3)
+#define ES8328_DACCONTROL18_RI2LO (1 << 6)
+#define ES8328_DACCONTROL18_RD2LO (1 << 7)
+
+#define ES8328_DACCONTROL19	0x29
+#define ES8328_DACCONTROL19_LI2ROVOL (7 << 3)
+#define ES8328_DACCONTROL19_LI2RO (1 << 6)
+#define ES8328_DACCONTROL19_LD2RO (1 << 7)
+
+#define ES8328_DACCONTROL20	0x2a
+#define ES8328_DACCONTROL20_RI2ROVOL (7 << 3)
+#define ES8328_DACCONTROL20_RI2RO (1 << 6)
+#define ES8328_DACCONTROL20_RD2RO (1 << 7)
+
+#define ES8328_DACCONTROL21	0x2b
+#define ES8328_DACCONTROL21_LI2MOVOL (7 << 3)
+#define ES8328_DACCONTROL21_LI2MO (1 << 6)
+#define ES8328_DACCONTROL21_LD2MO (1 << 7)
+
+#define ES8328_DACCONTROL22	0x2c
+#define ES8328_DACCONTROL22_RI2MOVOL (7 << 3)
+#define ES8328_DACCONTROL22_RI2MO (1 << 6)
+#define ES8328_DACCONTROL22_RD2MO (1 << 7)
+
+#define ES8328_DACCONTROL23	0x2d
+#define ES8328_DACCONTROL23_MOUTINV		(1 << 1)
+#define ES8328_DACCONTROL23_HPSWPOL		(1 << 2)
+#define ES8328_DACCONTROL23_HPSWEN		(1 << 3)
+#define ES8328_DACCONTROL23_VROI_1p5k		(0 << 4)
+#define ES8328_DACCONTROL23_VROI_40k		(1 << 4)
+#define ES8328_DACCONTROL23_OUT3_VREF		(0 << 5)
+#define ES8328_DACCONTROL23_OUT3_ROUT1		(1 << 5)
+#define ES8328_DACCONTROL23_OUT3_MONOOUT	(2 << 5)
+#define ES8328_DACCONTROL23_OUT3_RIGHT_MIXER	(3 << 5)
+#define ES8328_DACCONTROL23_ROUT2INV		(1 << 7)
+
+/* LOUT1 Amplifier */
+#define ES8328_LOUT1VOL 0x2e
+#define ES8328_LOUT1VOL_MASK (0 << 5)
+#define ES8328_LOUT1VOL_MAX (0x24)
+
+/* ROUT1 Amplifier */
+#define ES8328_ROUT1VOL 0x2f
+#define ES8328_ROUT1VOL_MASK (0 << 5)
+#define ES8328_ROUT1VOL_MAX (0x24)
+
+#define ES8328_OUT1VOL_MAX (0x24)
+
+/* LOUT2 Amplifier */
+#define ES8328_LOUT2VOL 0x30
+#define ES8328_LOUT2VOL_MASK (0 << 5)
+#define ES8328_LOUT2VOL_MAX (0x24)
+
+/* ROUT2 Amplifier */
+#define ES8328_ROUT2VOL 0x31
+#define ES8328_ROUT2VOL_MASK (0 << 5)
+#define ES8328_ROUT2VOL_MAX (0x24)
+
+#define ES8328_OUT2VOL_MAX (0x24)
+
+/* Mono Out Amplifier */
+#define ES8328_MONOOUTVOL 0x32
+#define ES8328_MONOOUTVOL_MASK (0 << 5)
+#define ES8328_MONOOUTVOL_MAX (0x24)
+
+#define ES8328_DACCONTROL29	0x33
+#define ES8328_DACCONTROL30	0x34
+
+#define ES8328_SYSCLK		0
+
+#define ES8328_REG_MAX		0x35
+
+#define ES8328_PLL1		0
+#define ES8328_PLL2		1
+
+/* clock inputs */
+#define ES8328_MCLK		0
+#define ES8328_PCMCLK		1
+
+/* clock divider id's */
+#define ES8328_PCMDIV		0
+#define ES8328_BCLKDIV		1
+#define ES8328_VXCLKDIV		2
+
+/* PCM clock dividers */
+#define ES8328_PCM_DIV_1	(0 << 6)
+#define ES8328_PCM_DIV_3	(2 << 6)
+#define ES8328_PCM_DIV_5_5	(3 << 6)
+#define ES8328_PCM_DIV_2	(4 << 6)
+#define ES8328_PCM_DIV_4	(5 << 6)
+#define ES8328_PCM_DIV_6	(6 << 6)
+#define ES8328_PCM_DIV_8	(7 << 6)
+
+/* BCLK clock dividers */
+#define ES8328_BCLK_DIV_1	(0 << 7)
+#define ES8328_BCLK_DIV_2	(1 << 7)
+#define ES8328_BCLK_DIV_4	(2 << 7)
+#define ES8328_BCLK_DIV_8	(3 << 7)
+
+/* VXCLK clock dividers */
+#define ES8328_VXCLK_DIV_1	(0 << 6)
+#define ES8328_VXCLK_DIV_2	(1 << 6)
+#define ES8328_VXCLK_DIV_4	(2 << 6)
+#define ES8328_VXCLK_DIV_8	(3 << 6)
+#define ES8328_VXCLK_DIV_16	(4 << 6)
+
+#define ES8328_DAI_HIFI		0
+#define ES8328_DAI_VOICE	1
+
+#define ES8328_1536FS		1536
+#define ES8328_1024FS		1024
+#define ES8328_768FS		768
+#define ES8328_512FS		512
+#define ES8328_384FS		384
+#define ES8328_256FS		256
+#define ES8328_128FS		128
+
+#endif
-- 
2.0.0

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[PATCH v7 3/3] ASoC: fsl: add imx-es8328 machine driver

[Sean Cross]

This adds an initial machine driver for the ES8328 audio codec on Freescale
boards.  The driver supports headphones and an audio regulator for an onboard
speaker amp.

Signed-off-by: Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>
---
 .../devicetree/bindings/sound/imx-audio-es8328.txt |  61 ++++++
 sound/soc/fsl/Kconfig                              |  14 ++
 sound/soc/fsl/Makefile                             |   2 +
 sound/soc/fsl/imx-es8328.c                         | 233 +++++++++++++++++++++
 4 files changed, 310 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-es8328.txt
 create mode 100644 sound/soc/fsl/imx-es8328.c

diff --git a/Documentation/devicetree/bindings/sound/imx-audio-es8328.txt b/Documentation/devicetree/bindings/sound/imx-audio-es8328.txt
new file mode 100644
index 0000000..b89f146
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/imx-audio-es8328.txt
@@ -0,0 +1,61 @@
+Freescale i.MX audio complex with ES8328 codec
+
+Required properties:
+- compatible : "fsl,imx-audio-es8328"
+- model : The user-visible name of this sound complex
+- ssi-controller : The phandle of the i.MX SSI controller
+- jack-gpio : Optional GPIO for headphone jack
+- audio-amp-supply : Power regulator for speaker amps
+- audio-codec : The phandle of the ES8328 audio codec
+- audio-routing : A list of the connections between audio components.
+  Each entry is a pair of strings, the first being the connection's sink,
+  the second being the connection's source. Valid names could be power
+  supplies, ES8328 pins, and the jacks on the board:
+
+  Power supplies:
+   * audio-amp
+
+  ES8328 pins:
+   * LOUT1
+   * LOUT2
+   * ROUT1
+   * ROUT2
+   * LINPUT1
+   * LINPUT2
+   * RINPUT1
+   * RINPUT2
+   * Mic PGA
+
+  Board connectors:
+   * Headphone
+   * Speaker
+   * Mic Jack
+
+- mux-int-port : The internal port of the i.MX audio muxer (AUDMUX)
+- mux-ext-port : The external port of the i.MX audio muxer (AUDMIX)
+
+Note: The AUDMUX port numbering should start at 1, which is consistent with
+hardware manual.
+
+Example:
+
+sound {
+	compatible = "fsl,imx-audio-es8328";
+	model = "imx-audio-es8328";
+	ssi-controller = <&ssi1>;
+	audio-codec = <&codec>;
+	jack-gpio = <&gpio5 15 0>;
+	audio-amp-supply = <&reg_audio_amp>;
+	audio-routing =
+		"Speaker", "LOUT2",
+		"Speaker", "ROUT2",
+		"Speaker", "audio-amp",
+		"Headphone", "ROUT1",
+		"Headphone", "LOUT1",
+		"LINPUT1", "Mic Jack",
+		"RINPUT1", "Mic Jack",
+		"Mic Jack", "Mic Bias";
+	mux-int-port = <1>;
+	mux-ext-port = <3>;
+};
+
diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
index 3793362..c0ace69 100644
--- a/sound/soc/fsl/Kconfig
+++ b/sound/soc/fsl/Kconfig
@@ -229,6 +229,20 @@ config SND_SOC_IMX_WM8962
 	  Say Y if you want to add support for SoC audio on an i.MX board with
 	  a wm8962 codec.
 
+config SND_SOC_IMX_ES8328
+	tristate "SoC Audio support for i.MX boards with the ES8328 codec"
+	depends on OF && (I2C || SPI)
+	select SND_SOC_ES8328_I2C if I2C
+	select SND_SOC_ES8328_SPI if SPI_MASTER
+	select SND_SOC_IMX_PCM_DMA
+	select SND_SOC_IMX_AUDMUX
+	select SND_SOC_FSL_SSI
+	select SND_SOC_FSL_UTILS
+	select SND_SOC_IMX_PCM_FIQ
+	help
+	  Say Y if you want to add support for the ES8328 audio codec connected
+	  via SSI/I2S over either SPI or I2C.
+
 config SND_SOC_IMX_SGTL5000
 	tristate "SoC Audio support for i.MX boards with sgtl5000"
 	depends on OF && I2C
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile
index db254e3..e561766 100644
--- a/sound/soc/fsl/Makefile
+++ b/sound/soc/fsl/Makefile
@@ -48,6 +48,7 @@ snd-soc-eukrea-tlv320-objs := eukrea-tlv320.o
 snd-soc-phycore-ac97-objs := phycore-ac97.o
 snd-soc-mx27vis-aic32x4-objs := mx27vis-aic32x4.o
 snd-soc-wm1133-ev1-objs := wm1133-ev1.o
+snd-soc-imx-es8328-objs := imx-es8328.o
 snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o
 snd-soc-imx-wm8962-objs := imx-wm8962.o
 snd-soc-imx-spdif-objs := imx-spdif.o
@@ -57,6 +58,7 @@ obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
 obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
 obj-$(CONFIG_SND_SOC_MX27VIS_AIC32X4) += snd-soc-mx27vis-aic32x4.o
 obj-$(CONFIG_SND_MXC_SOC_WM1133_EV1) += snd-soc-wm1133-ev1.o
+obj-$(CONFIG_SND_SOC_IMX_ES8328) += snd-soc-imx-es8328.o
 obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o
 obj-$(CONFIG_SND_SOC_IMX_WM8962) += snd-soc-imx-wm8962.o
 obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o
diff --git a/sound/soc/fsl/imx-es8328.c b/sound/soc/fsl/imx-es8328.c
new file mode 100644
index 0000000..3c426cd
--- /dev/null
+++ b/sound/soc/fsl/imx-es8328.c
@@ -0,0 +1,233 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2012 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/i2c.h>
+#include <linux/of_gpio.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "imx-audmux.h"
+
+#define DAI_NAME_SIZE	32
+#define MUX_PORT_MAX	7
+
+struct imx_es8328_data {
+	struct device *dev;
+	struct snd_soc_dai_link dai;
+	struct snd_soc_card card;
+	char codec_dai_name[DAI_NAME_SIZE];
+	char platform_name[DAI_NAME_SIZE];
+	int jack_gpio;
+};
+
+static struct snd_soc_jack_gpio headset_jack_gpios[] = {
+	{
+		.gpio = -1,
+		.name = "headset-gpio",
+		.report = SND_JACK_HEADSET,
+		.invert = 0,
+		.debounce_time = 200,
+	},
+};
+
+static struct snd_soc_jack headset_jack;
+
+static int imx_es8328_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct imx_es8328_data *data = container_of(rtd->card,
+					struct imx_es8328_data, card);
+	int ret = 0;
+
+	/* Headphone jack detection */
+	if (gpio_is_valid(data->jack_gpio)) {
+		ret = snd_soc_jack_new(rtd->codec, "Headphone",
+				       SND_JACK_HEADPHONE | SND_JACK_BTN_0,
+				       &headset_jack);
+		if (ret)
+			return ret;
+
+		headset_jack_gpios[0].gpio = data->jack_gpio;
+		ret = snd_soc_jack_add_gpios(&headset_jack,
+					     ARRAY_SIZE(headset_jack_gpios),
+					     headset_jack_gpios);
+	}
+
+	return ret;
+}
+
+static const struct snd_soc_dapm_widget imx_es8328_dapm_widgets[] = {
+	SND_SOC_DAPM_MIC("Mic Jack", NULL),
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_SPK("Speaker", NULL),
+	SND_SOC_DAPM_REGULATOR_SUPPLY("audio-amp", 1, 0),
+};
+
+static int imx_es8328_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *ssi_np, *codec_np;
+	struct platform_device *ssi_pdev;
+	struct imx_es8328_data *data;
+	u32 int_port, ext_port;
+	int ret;
+	struct device *dev = &pdev->dev;
+
+	ret = of_property_read_u32(np, "mux-int-port", &int_port);
+	if (ret) {
+		dev_err(dev, "mux-int-port missing or invalid\n");
+		goto fail;
+	}
+	if (int_port > MUX_PORT_MAX || int_port == 0) {
+		dev_err(dev, "mux-int-port: hardware only has %d mux ports\n",
+				MUX_PORT_MAX);
+		goto fail;
+	}
+
+	ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
+	if (ret) {
+		dev_err(dev, "mux-ext-port missing or invalid\n");
+		goto fail;
+	}
+	if (ext_port > MUX_PORT_MAX || ext_port == 0) {
+		dev_err(dev, "mux-ext-port: hardware only has %d mux ports\n",
+				MUX_PORT_MAX);
+		goto fail;
+	}
+
+	/*
+	 * The port numbering in the hardware manual starts at 1, while
+	 * the audmux API expects it starts at 0.
+	 */
+	int_port--;
+	ext_port--;
+	ret = imx_audmux_v2_configure_port(int_port,
+			IMX_AUDMUX_V2_PTCR_SYN |
+			IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
+			IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
+			IMX_AUDMUX_V2_PTCR_TFSDIR |
+			IMX_AUDMUX_V2_PTCR_TCLKDIR,
+			IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
+	if (ret) {
+		dev_err(dev, "audmux internal port setup failed\n");
+		return ret;
+	}
+	ret = imx_audmux_v2_configure_port(ext_port,
+			IMX_AUDMUX_V2_PTCR_SYN,
+			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
+	if (ret) {
+		dev_err(dev, "audmux external port setup failed\n");
+		return ret;
+	}
+
+	ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0);
+	codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
+	if (!ssi_np || !codec_np) {
+		dev_err(dev, "phandle missing or invalid\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	ssi_pdev = of_find_device_by_node(ssi_np);
+	if (!ssi_pdev) {
+		dev_err(dev, "failed to find SSI platform device\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	data->dev = dev;
+
+	data->jack_gpio = of_get_named_gpio(pdev->dev.of_node, "jack-gpio", 0);
+
+	data->dai.name = "hifi";
+	data->dai.stream_name = "hifi";
+	data->dai.codec_dai_name = "es8328-hifi-analog";
+	data->dai.codec_of_node = codec_np;
+	data->dai.cpu_of_node = ssi_np;
+	data->dai.platform_of_node = ssi_np;
+	data->dai.init = &imx_es8328_dai_init;
+	data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			    SND_SOC_DAIFMT_CBM_CFM;
+
+	data->card.dev = dev;
+	data->card.dapm_widgets = imx_es8328_dapm_widgets;
+	data->card.num_dapm_widgets = ARRAY_SIZE(imx_es8328_dapm_widgets);
+	ret = snd_soc_of_parse_card_name(&data->card, "model");
+	if (ret) {
+		dev_err(dev, "Unable to parse card name\n");
+		goto fail;
+	}
+	ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
+	if (ret) {
+		dev_err(dev, "Unable to parse routing: %d\n", ret);
+		goto fail;
+	}
+	data->card.num_links = 1;
+	data->card.owner = THIS_MODULE;
+	data->card.dai_link = &data->dai;
+
+	ret = snd_soc_register_card(&data->card);
+	if (ret) {
+		dev_err(dev, "Unable to register: %d\n", ret);
+		goto fail;
+	}
+
+	platform_set_drvdata(pdev, data);
+fail:
+	of_node_put(ssi_np);
+	of_node_put(codec_np);
+
+	return ret;
+}
+
+static int imx_es8328_remove(struct platform_device *pdev)
+{
+	struct imx_es8328_data *data = platform_get_drvdata(pdev);
+
+	snd_soc_jack_free_gpios(&headset_jack, ARRAY_SIZE(headset_jack_gpios),
+				headset_jack_gpios);
+
+	snd_soc_unregister_card(&data->card);
+
+	return 0;
+}
+
+static const struct of_device_id imx_es8328_dt_ids[] = {
+	{ .compatible = "fsl,imx-audio-es8328", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_es8328_dt_ids);
+
+static struct platform_driver imx_es8328_driver = {
+	.driver = {
+		.name = "imx-es8328",
+		.owner = THIS_MODULE,
+		.of_match_table = imx_es8328_dt_ids,
+	},
+	.probe = imx_es8328_probe,
+	.remove = imx_es8328_remove,
+};
+module_platform_driver(imx_es8328_driver);
+
+MODULE_AUTHOR("Sean Cross <xobs-nXMMniAx+RbQT0dZR+AlfA@public.gmane.org>");
+MODULE_DESCRIPTION("Kosagi i.MX6 ES8328 ASoC machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:imx-audio-es8328");
-- 
2.0.0

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