Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1530 insertions, 0 deletions

diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
new file mode 100644
index 000000000..0d167238a
--- /dev/null
+++ b/sound/soc/codecs/wm8960.c
@@ -0,0 +1,1530 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * wm8960.c  --  WM8960 ALSA SoC Audio driver
+ *
+ * Copyright 2007-11 Wolfson Microelectronics, plc
+ *
+ * Author: Liam Girdwood
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/acpi.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <sound/wm8960.h>
+
+#include "wm8960.h"
+
+/* R25 - Power 1 */
+#define WM8960_VMID_MASK 0x180
+#define WM8960_VREF      0x40
+
+/* R26 - Power 2 */
+#define WM8960_PWR2_LOUT1	0x40
+#define WM8960_PWR2_ROUT1	0x20
+#define WM8960_PWR2_OUT3	0x02
+
+/* R28 - Anti-pop 1 */
+#define WM8960_POBCTRL   0x80
+#define WM8960_BUFDCOPEN 0x10
+#define WM8960_BUFIOEN   0x08
+#define WM8960_SOFT_ST   0x04
+#define WM8960_HPSTBY    0x01
+
+/* R29 - Anti-pop 2 */
+#define WM8960_DISOP     0x40
+#define WM8960_DRES_MASK 0x30
+
+#define WM8960_DSCH_TOUT	600 /* discharge timeout, ms */
+
+static bool is_pll_freq_available(unsigned int source, unsigned int target);
+static int wm8960_set_pll(struct snd_soc_component *component,
+		unsigned int freq_in, unsigned int freq_out);
+/*
+ * wm8960 register cache
+ * We can't read the WM8960 register space when we are
+ * using 2 wire for device control, so we cache them instead.
+ */
+static const struct reg_default wm8960_reg_defaults[] = {
+	{  0x0, 0x00a7 },
+	{  0x1, 0x00a7 },
+	{  0x2, 0x0000 },
+	{  0x3, 0x0000 },
+	{  0x4, 0x0000 },
+	{  0x5, 0x0008 },
+	{  0x6, 0x0000 },
+	{  0x7, 0x000a },
+	{  0x8, 0x01c0 },
+	{  0x9, 0x0000 },
+	{  0xa, 0x00ff },
+	{  0xb, 0x00ff },
+
+	{ 0x10, 0x0000 },
+	{ 0x11, 0x007b },
+	{ 0x12, 0x0100 },
+	{ 0x13, 0x0032 },
+	{ 0x14, 0x0000 },
+	{ 0x15, 0x00c3 },
+	{ 0x16, 0x00c3 },
+	{ 0x17, 0x01c0 },
+	{ 0x18, 0x0000 },
+	{ 0x19, 0x0000 },
+	{ 0x1a, 0x0000 },
+	{ 0x1b, 0x0000 },
+	{ 0x1c, 0x0000 },
+	{ 0x1d, 0x0000 },
+
+	{ 0x20, 0x0100 },
+	{ 0x21, 0x0100 },
+	{ 0x22, 0x0050 },
+
+	{ 0x25, 0x0050 },
+	{ 0x26, 0x0000 },
+	{ 0x27, 0x0000 },
+	{ 0x28, 0x0000 },
+	{ 0x29, 0x0000 },
+	{ 0x2a, 0x0040 },
+	{ 0x2b, 0x0000 },
+	{ 0x2c, 0x0000 },
+	{ 0x2d, 0x0050 },
+	{ 0x2e, 0x0050 },
+	{ 0x2f, 0x0000 },
+	{ 0x30, 0x0002 },
+	{ 0x31, 0x0037 },
+
+	{ 0x33, 0x0080 },
+	{ 0x34, 0x0008 },
+	{ 0x35, 0x0031 },
+	{ 0x36, 0x0026 },
+	{ 0x37, 0x00e9 },
+};
+
+static bool wm8960_volatile(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case WM8960_RESET:
+		return true;
+	default:
+		return false;
+	}
+}
+
+struct wm8960_priv {
+	struct clk *mclk;
+	struct regmap *regmap;
+	int (*set_bias_level)(struct snd_soc_component *,
+			      enum snd_soc_bias_level level);
+	struct snd_soc_dapm_widget *lout1;
+	struct snd_soc_dapm_widget *rout1;
+	struct snd_soc_dapm_widget *out3;
+	bool deemph;
+	int lrclk;
+	int bclk;
+	int sysclk;
+	int clk_id;
+	int freq_in;
+	bool is_stream_in_use[2];
+	struct wm8960_data pdata;
+	ktime_t dsch_start;
+};
+
+#define wm8960_reset(c)	regmap_write(c, WM8960_RESET, 0)
+
+/* enumerated controls */
+static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
+	"Right Inverted", "Stereo Inversion"};
+static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
+static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
+static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
+static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
+static const char *wm8960_adc_data_output_sel[] = {
+	"Left Data = Left ADC;  Right Data = Right ADC",
+	"Left Data = Left ADC;  Right Data = Left ADC",
+	"Left Data = Right ADC; Right Data = Right ADC",
+	"Left Data = Right ADC; Right Data = Left ADC",
+};
+static const char *wm8960_dmonomix[] = {"Stereo", "Mono"};
+
+static const struct soc_enum wm8960_enum[] = {
+	SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
+	SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
+	SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
+	SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
+	SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
+	SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
+	SOC_ENUM_SINGLE(WM8960_ADDCTL1, 2, 4, wm8960_adc_data_output_sel),
+	SOC_ENUM_SINGLE(WM8960_ADDCTL1, 4, 2, wm8960_dmonomix),
+};
+
+static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
+
+static int wm8960_set_deemph(struct snd_soc_component *component)
+{
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	int val, i, best;
+
+	/* If we're using deemphasis select the nearest available sample
+	 * rate.
+	 */
+	if (wm8960->deemph) {
+		best = 1;
+		for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
+			if (abs(deemph_settings[i] - wm8960->lrclk) <
+			    abs(deemph_settings[best] - wm8960->lrclk))
+				best = i;
+		}
+
+		val = best << 1;
+	} else {
+		val = 0;
+	}
+
+	dev_dbg(component->dev, "Set deemphasis %d\n", val);
+
+	return snd_soc_component_update_bits(component, WM8960_DACCTL1,
+				   0x6, val);
+}
+
+static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+
+	ucontrol->value.integer.value[0] = wm8960->deemph;
+	return 0;
+}
+
+static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	unsigned int deemph = ucontrol->value.integer.value[0];
+
+	if (deemph > 1)
+		return -EINVAL;
+
+	wm8960->deemph = deemph;
+
+	return wm8960_set_deemph(component);
+}
+
+static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
+static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0);
+static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
+static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
+static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
+static const DECLARE_TLV_DB_SCALE(lineinboost_tlv, -1500, 300, 1);
+static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(micboost_tlv,
+	0, 1, TLV_DB_SCALE_ITEM(0, 1300, 0),
+	2, 3, TLV_DB_SCALE_ITEM(2000, 900, 0),
+);
+
+static const struct snd_kcontrol_new wm8960_snd_controls[] = {
+SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
+		 0, 63, 0, inpga_tlv),
+SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
+	6, 1, 0),
+SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
+	7, 1, 1),
+
+SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
+	       WM8960_INBMIX1, 4, 7, 0, lineinboost_tlv),
+SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
+	       WM8960_INBMIX1, 1, 7, 0, lineinboost_tlv),
+SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
+	       WM8960_INBMIX2, 4, 7, 0, lineinboost_tlv),
+SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
+	       WM8960_INBMIX2, 1, 7, 0, lineinboost_tlv),
+SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume",
+		WM8960_RINPATH, 4, 3, 0, micboost_tlv),
+SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT1 Volume",
+		WM8960_LINPATH, 4, 3, 0, micboost_tlv),
+
+SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
+		 0, 255, 0, dac_tlv),
+
+SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
+		 0, 127, 0, out_tlv),
+SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
+	7, 1, 0),
+
+SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
+		 0, 127, 0, out_tlv),
+SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
+	7, 1, 0),
+SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
+SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
+
+SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
+SOC_ENUM("ADC Polarity", wm8960_enum[0]),
+SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
+
+SOC_ENUM("DAC Polarity", wm8960_enum[1]),
+SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
+		    wm8960_get_deemph, wm8960_put_deemph),
+
+SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
+SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
+SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
+SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
+
+SOC_ENUM("ALC Function", wm8960_enum[4]),
+SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
+SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
+SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
+SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
+SOC_ENUM("ALC Mode", wm8960_enum[5]),
+SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
+SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
+
+SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
+SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
+
+SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
+	0, 255, 0, adc_tlv),
+
+SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
+	       WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
+SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
+	       WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
+SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
+	       WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
+SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
+	       WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
+
+SOC_ENUM("ADC Data Output Select", wm8960_enum[6]),
+SOC_ENUM("DAC Mono Mix", wm8960_enum[7]),
+};
+
+static const struct snd_kcontrol_new wm8960_lin_boost[] = {
+SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
+SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
+SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_lin[] = {
+SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_rin_boost[] = {
+SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
+SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
+SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_rin[] = {
+SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
+SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
+SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
+SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
+SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
+SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
+SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
+};
+
+static const struct snd_kcontrol_new wm8960_mono_out[] = {
+SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
+SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("LINPUT1"),
+SND_SOC_DAPM_INPUT("RINPUT1"),
+SND_SOC_DAPM_INPUT("LINPUT2"),
+SND_SOC_DAPM_INPUT("RINPUT2"),
+SND_SOC_DAPM_INPUT("LINPUT3"),
+SND_SOC_DAPM_INPUT("RINPUT3"),
+
+SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
+
+SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
+		   wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
+SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
+		   wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
+
+SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
+		   wm8960_lin, ARRAY_SIZE(wm8960_lin)),
+SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
+		   wm8960_rin, ARRAY_SIZE(wm8960_rin)),
+
+SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
+SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
+
+SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
+SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
+
+SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
+	&wm8960_loutput_mixer[0],
+	ARRAY_SIZE(wm8960_loutput_mixer)),
+SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
+	&wm8960_routput_mixer[0],
+	ARRAY_SIZE(wm8960_routput_mixer)),
+
+SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
+SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
+
+SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
+
+SND_SOC_DAPM_OUTPUT("SPK_LP"),
+SND_SOC_DAPM_OUTPUT("SPK_LN"),
+SND_SOC_DAPM_OUTPUT("HP_L"),
+SND_SOC_DAPM_OUTPUT("HP_R"),
+SND_SOC_DAPM_OUTPUT("SPK_RP"),
+SND_SOC_DAPM_OUTPUT("SPK_RN"),
+SND_SOC_DAPM_OUTPUT("OUT3"),
+};
+
+static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
+SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
+	&wm8960_mono_out[0],
+	ARRAY_SIZE(wm8960_mono_out)),
+};
+
+/* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
+static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
+SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route audio_paths[] = {
+	{ "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
+	{ "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
+	{ "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
+
+	{ "Left Input Mixer", "Boost Switch", "Left Boost Mixer" },
+	{ "Left Input Mixer", "Boost Switch", "LINPUT1" },  /* Really Boost Switch */
+	{ "Left Input Mixer", NULL, "LINPUT2" },
+	{ "Left Input Mixer", NULL, "LINPUT3" },
+
+	{ "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
+	{ "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
+	{ "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
+
+	{ "Right Input Mixer", "Boost Switch", "Right Boost Mixer" },
+	{ "Right Input Mixer", "Boost Switch", "RINPUT1" },  /* Really Boost Switch */
+	{ "Right Input Mixer", NULL, "RINPUT2" },
+	{ "Right Input Mixer", NULL, "RINPUT3" },
+
+	{ "Left ADC", NULL, "Left Input Mixer" },
+	{ "Right ADC", NULL, "Right Input Mixer" },
+
+	{ "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
+	{ "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer" },
+	{ "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
+
+	{ "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
+	{ "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" },
+	{ "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
+
+	{ "LOUT1 PGA", NULL, "Left Output Mixer" },
+	{ "ROUT1 PGA", NULL, "Right Output Mixer" },
+
+	{ "HP_L", NULL, "LOUT1 PGA" },
+	{ "HP_R", NULL, "ROUT1 PGA" },
+
+	{ "Left Speaker PGA", NULL, "Left Output Mixer" },
+	{ "Right Speaker PGA", NULL, "Right Output Mixer" },
+
+	{ "Left Speaker Output", NULL, "Left Speaker PGA" },
+	{ "Right Speaker Output", NULL, "Right Speaker PGA" },
+
+	{ "SPK_LN", NULL, "Left Speaker Output" },
+	{ "SPK_LP", NULL, "Left Speaker Output" },
+	{ "SPK_RN", NULL, "Right Speaker Output" },
+	{ "SPK_RP", NULL, "Right Speaker Output" },
+};
+
+static const struct snd_soc_dapm_route audio_paths_out3[] = {
+	{ "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
+	{ "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
+
+	{ "OUT3", NULL, "Mono Output Mixer", }
+};
+
+static const struct snd_soc_dapm_route audio_paths_capless[] = {
+	{ "HP_L", NULL, "OUT3 VMID" },
+	{ "HP_R", NULL, "OUT3 VMID" },
+
+	{ "OUT3 VMID", NULL, "Left Output Mixer" },
+	{ "OUT3 VMID", NULL, "Right Output Mixer" },
+};
+
+static int wm8960_add_widgets(struct snd_soc_component *component)
+{
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	struct wm8960_data *pdata = &wm8960->pdata;
+	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+	struct snd_soc_dapm_widget *w;
+
+	snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
+				  ARRAY_SIZE(wm8960_dapm_widgets));
+
+	snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
+
+	/* In capless mode OUT3 is used to provide VMID for the
+	 * headphone outputs, otherwise it is used as a mono mixer.
+	 */
+	if (pdata && pdata->capless) {
+		snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
+					  ARRAY_SIZE(wm8960_dapm_widgets_capless));
+
+		snd_soc_dapm_add_routes(dapm, audio_paths_capless,
+					ARRAY_SIZE(audio_paths_capless));
+	} else {
+		snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
+					  ARRAY_SIZE(wm8960_dapm_widgets_out3));
+
+		snd_soc_dapm_add_routes(dapm, audio_paths_out3,
+					ARRAY_SIZE(audio_paths_out3));
+	}
+
+	/* We need to power up the headphone output stage out of
+	 * sequence for capless mode.  To save scanning the widget
+	 * list each time to find the desired power state do so now
+	 * and save the result.
+	 */
+	list_for_each_entry(w, &component->card->widgets, list) {
+		if (w->dapm != dapm)
+			continue;
+		if (strcmp(w->name, "LOUT1 PGA") == 0)
+			wm8960->lout1 = w;
+		if (strcmp(w->name, "ROUT1 PGA") == 0)
+			wm8960->rout1 = w;
+		if (strcmp(w->name, "OUT3 VMID") == 0)
+			wm8960->out3 = w;
+	}
+	
+	return 0;
+}
+
+static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_component *component = codec_dai->component;
+	u16 iface = 0;
+
+	/* set master/slave audio interface */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		iface |= 0x0040;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		iface |= 0x0002;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		iface |= 0x0001;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		iface |= 0x0003;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		iface |= 0x0013;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		iface |= 0x0090;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		iface |= 0x0080;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		iface |= 0x0010;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* set iface */
+	snd_soc_component_write(component, WM8960_IFACE1, iface);
+	return 0;
+}
+
+static struct {
+	int rate;
+	unsigned int val;
+} alc_rates[] = {
+	{ 48000, 0 },
+	{ 44100, 0 },
+	{ 32000, 1 },
+	{ 22050, 2 },
+	{ 24000, 2 },
+	{ 16000, 3 },
+	{ 11025, 4 },
+	{ 12000, 4 },
+	{  8000, 5 },
+};
+
+/* -1 for reserved value */
+static const int sysclk_divs[] = { 1, -1, 2, -1 };
+
+/* Multiply 256 for internal 256 div */
+static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 };
+
+/* Multiply 10 to eliminate decimials */
+static const int bclk_divs[] = {
+	10, 15, 20, 30, 40, 55, 60, 80, 110,
+	120, 160, 220, 240, 320, 320, 320
+};
+
+/**
+ * wm8960_configure_sysclk - checks if there is a sysclk frequency available
+ *	The sysclk must be chosen such that:
+ *		- sysclk     = MCLK / sysclk_divs
+ *		- lrclk      = sysclk / dac_divs
+ *		- 10 * bclk  = sysclk / bclk_divs
+ *
+ * @wm8960: codec private data
+ * @mclk: MCLK used to derive sysclk
+ * @sysclk_idx: sysclk_divs index for found sysclk
+ * @dac_idx: dac_divs index for found lrclk
+ * @bclk_idx: bclk_divs index for found bclk
+ *
+ * Returns:
+ *  -1, in case no sysclk frequency available found
+ * >=0, in case we could derive bclk and lrclk from sysclk using
+ *      (@sysclk_idx, @dac_idx, @bclk_idx) dividers
+ */
+static
+int wm8960_configure_sysclk(struct wm8960_priv *wm8960, int mclk,
+			    int *sysclk_idx, int *dac_idx, int *bclk_idx)
+{
+	int sysclk, bclk, lrclk;
+	int i, j, k;
+	int diff;
+
+	/* marker for no match */
+	*bclk_idx = -1;
+
+	bclk = wm8960->bclk;
+	lrclk = wm8960->lrclk;
+
+	/* check if the sysclk frequency is available. */
+	for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
+		if (sysclk_divs[i] == -1)
+			continue;
+		sysclk = mclk / sysclk_divs[i];
+		for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
+			if (sysclk != dac_divs[j] * lrclk)
+				continue;
+			for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) {
+				diff = sysclk - bclk * bclk_divs[k] / 10;
+				if (diff == 0) {
+					*sysclk_idx = i;
+					*dac_idx = j;
+					*bclk_idx = k;
+					break;
+				}
+			}
+			if (k != ARRAY_SIZE(bclk_divs))
+				break;
+		}
+		if (j != ARRAY_SIZE(dac_divs))
+			break;
+	}
+	return *bclk_idx;
+}
+
+/**
+ * wm8960_configure_pll - checks if there is a PLL out frequency available
+ *	The PLL out frequency must be chosen such that:
+ *		- sysclk      = lrclk * dac_divs
+ *		- freq_out    = sysclk * sysclk_divs
+ *		- 10 * sysclk = bclk * bclk_divs
+ *
+ * 	If we cannot find an exact match for (sysclk, lrclk, bclk)
+ * 	triplet, we relax the bclk such that bclk is chosen as the
+ * 	closest available frequency greater than expected bclk.
+ *
+ * @component: component structure
+ * @freq_in: input frequency used to derive freq out via PLL
+ * @sysclk_idx: sysclk_divs index for found sysclk
+ * @dac_idx: dac_divs index for found lrclk
+ * @bclk_idx: bclk_divs index for found bclk
+ *
+ * Returns:
+ * < 0, in case no PLL frequency out available was found
+ * >=0, in case we could derive bclk, lrclk, sysclk from PLL out using
+ *      (@sysclk_idx, @dac_idx, @bclk_idx) dividers
+ */
+static
+int wm8960_configure_pll(struct snd_soc_component *component, int freq_in,
+			 int *sysclk_idx, int *dac_idx, int *bclk_idx)
+{
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	int sysclk, bclk, lrclk, freq_out;
+	int diff, closest, best_freq_out;
+	int i, j, k;
+
+	bclk = wm8960->bclk;
+	lrclk = wm8960->lrclk;
+	closest = freq_in;
+
+	best_freq_out = -EINVAL;
+	*sysclk_idx = *dac_idx = *bclk_idx = -1;
+
+	/*
+	 * From Datasheet, the PLL performs best when f2 is between
+	 * 90MHz and 100MHz, the desired sysclk output is 11.2896MHz
+	 * or 12.288MHz, then sysclkdiv = 2 is the best choice.
+	 * So search sysclk_divs from 2 to 1 other than from 1 to 2.
+	 */
+	for (i = ARRAY_SIZE(sysclk_divs) - 1; i >= 0; --i) {
+		if (sysclk_divs[i] == -1)
+			continue;
+		for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
+			sysclk = lrclk * dac_divs[j];
+			freq_out = sysclk * sysclk_divs[i];
+
+			for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) {
+				if (!is_pll_freq_available(freq_in, freq_out))
+					continue;
+
+				diff = sysclk - bclk * bclk_divs[k] / 10;
+				if (diff == 0) {
+					*sysclk_idx = i;
+					*dac_idx = j;
+					*bclk_idx = k;
+					return freq_out;
+				}
+				if (diff > 0 && closest > diff) {
+					*sysclk_idx = i;
+					*dac_idx = j;
+					*bclk_idx = k;
+					closest = diff;
+					best_freq_out = freq_out;
+				}
+			}
+		}
+	}
+
+	return best_freq_out;
+}
+static int wm8960_configure_clocking(struct snd_soc_component *component)
+{
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	int freq_out, freq_in;
+	u16 iface1 = snd_soc_component_read(component, WM8960_IFACE1);
+	int i, j, k;
+	int ret;
+
+	/*
+	 * For Slave mode clocking should still be configured,
+	 * so this if statement should be removed, but some platform
+	 * may not work if the sysclk is not configured, to avoid such
+	 * compatible issue, just add '!wm8960->sysclk' condition in
+	 * this if statement.
+	 */
+	if (!(iface1 & (1 << 6)) && !wm8960->sysclk) {
+		dev_warn(component->dev,
+			 "slave mode, but proceeding with no clock configuration\n");
+		return 0;
+	}
+
+	if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) {
+		dev_err(component->dev, "No MCLK configured\n");
+		return -EINVAL;
+	}
+
+	freq_in = wm8960->freq_in;
+	/*
+	 * If it's sysclk auto mode, check if the MCLK can provide sysclk or
+	 * not. If MCLK can provide sysclk, using MCLK to provide sysclk
+	 * directly. Otherwise, auto select a available pll out frequency
+	 * and set PLL.
+	 */
+	if (wm8960->clk_id == WM8960_SYSCLK_AUTO) {
+		/* disable the PLL and using MCLK to provide sysclk */
+		wm8960_set_pll(component, 0, 0);
+		freq_out = freq_in;
+	} else if (wm8960->sysclk) {
+		freq_out = wm8960->sysclk;
+	} else {
+		dev_err(component->dev, "No SYSCLK configured\n");
+		return -EINVAL;
+	}
+
+	if (wm8960->clk_id != WM8960_SYSCLK_PLL) {
+		ret = wm8960_configure_sysclk(wm8960, freq_out, &i, &j, &k);
+		if (ret >= 0) {
+			goto configure_clock;
+		} else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) {
+			dev_err(component->dev, "failed to configure clock\n");
+			return -EINVAL;
+		}
+	}
+
+	freq_out = wm8960_configure_pll(component, freq_in, &i, &j, &k);
+	if (freq_out < 0) {
+		dev_err(component->dev, "failed to configure clock via PLL\n");
+		return freq_out;
+	}
+	wm8960_set_pll(component, freq_in, freq_out);
+
+configure_clock:
+	/* configure sysclk clock */
+	snd_soc_component_update_bits(component, WM8960_CLOCK1, 3 << 1, i << 1);
+
+	/* configure frame clock */
+	snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 3, j << 3);
+	snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 6, j << 6);
+
+	/* configure bit clock */
+	snd_soc_component_update_bits(component, WM8960_CLOCK2, 0xf, k);
+
+	return 0;
+}
+
+static int wm8960_hw_params(struct snd_pcm_substream *substream,
+			    struct snd_pcm_hw_params *params,
+			    struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	u16 iface = snd_soc_component_read(component, WM8960_IFACE1) & 0xfff3;
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	int i;
+
+	wm8960->bclk = snd_soc_params_to_bclk(params);
+	if (params_channels(params) == 1)
+		wm8960->bclk *= 2;
+
+	/* bit size */
+	switch (params_width(params)) {
+	case 16:
+		break;
+	case 20:
+		iface |= 0x0004;
+		break;
+	case 24:
+		iface |= 0x0008;
+		break;
+	case 32:
+		/* right justify mode does not support 32 word length */
+		if ((iface & 0x3) != 0) {
+			iface |= 0x000c;
+			break;
+		}
+		fallthrough;
+	default:
+		dev_err(component->dev, "unsupported width %d\n",
+			params_width(params));
+		return -EINVAL;
+	}
+
+	wm8960->lrclk = params_rate(params);
+	/* Update filters for the new rate */
+	if (tx) {
+		wm8960_set_deemph(component);
+	} else {
+		for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
+			if (alc_rates[i].rate == params_rate(params))
+				snd_soc_component_update_bits(component,
+						    WM8960_ADDCTL3, 0x7,
+						    alc_rates[i].val);
+	}
+
+	/* set iface */
+	snd_soc_component_write(component, WM8960_IFACE1, iface);
+
+	wm8960->is_stream_in_use[tx] = true;
+
+	if (!wm8960->is_stream_in_use[!tx])
+		return wm8960_configure_clocking(component);
+
+	return 0;
+}
+
+static int wm8960_hw_free(struct snd_pcm_substream *substream,
+		struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+
+	wm8960->is_stream_in_use[tx] = false;
+
+	return 0;
+}
+
+static int wm8960_mute(struct snd_soc_dai *dai, int mute, int direction)
+{
+	struct snd_soc_component *component = dai->component;
+
+	if (mute)
+		snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0x8);
+	else
+		snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0);
+	return 0;
+}
+
+static int wm8960_set_bias_level_out3(struct snd_soc_component *component,
+				      enum snd_soc_bias_level level)
+{
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	u16 pm2 = snd_soc_component_read(component, WM8960_POWER2);
+	int ret;
+	ktime_t tout;
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+
+	case SND_SOC_BIAS_PREPARE:
+		switch (snd_soc_component_get_bias_level(component)) {
+		case SND_SOC_BIAS_STANDBY:
+			if (!IS_ERR(wm8960->mclk)) {
+				ret = clk_prepare_enable(wm8960->mclk);
+				if (ret) {
+					dev_err(component->dev,
+						"Failed to enable MCLK: %d\n",
+						ret);
+					return ret;
+				}
+			}
+
+			ret = wm8960_configure_clocking(component);
+			if (ret)
+				return ret;
+
+			/* Set VMID to 2x50k */
+			snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x80);
+			break;
+
+		case SND_SOC_BIAS_ON:
+			/*
+			 * If it's sysclk auto mode, and the pll is enabled,
+			 * disable the pll
+			 */
+			if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
+				wm8960_set_pll(component, 0, 0);
+
+			if (!IS_ERR(wm8960->mclk))
+				clk_disable_unprepare(wm8960->mclk);
+			break;
+
+		default:
+			break;
+		}
+
+		break;
+
+	case SND_SOC_BIAS_STANDBY:
+		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
+			/* ensure discharge is complete */
+			tout = WM8960_DSCH_TOUT - ktime_ms_delta(ktime_get(), wm8960->dsch_start);
+			if (tout > 0)
+				msleep(tout);
+
+			regcache_sync(wm8960->regmap);
+
+			/* Enable anti-pop features */
+			snd_soc_component_write(component, WM8960_APOP1,
+				      WM8960_POBCTRL | WM8960_SOFT_ST |
+				      WM8960_BUFDCOPEN | WM8960_BUFIOEN);
+
+			/* Enable & ramp VMID at 2x50k */
+			snd_soc_component_update_bits(component, WM8960_POWER1, 0x80, 0x80);
+			msleep(100);
+
+			/* Enable VREF */
+			snd_soc_component_update_bits(component, WM8960_POWER1, WM8960_VREF,
+					    WM8960_VREF);
+
+			/* Disable anti-pop features */
+			snd_soc_component_write(component, WM8960_APOP1, WM8960_BUFIOEN);
+		}
+
+		/* Set VMID to 2x250k */
+		snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x100);
+		break;
+
+	case SND_SOC_BIAS_OFF:
+		/* Enable anti-pop features */
+		snd_soc_component_write(component, WM8960_APOP1,
+			     WM8960_POBCTRL | WM8960_SOFT_ST |
+			     WM8960_BUFDCOPEN | WM8960_BUFIOEN);
+
+		/* Disable VMID and VREF, mark discharge */
+		snd_soc_component_write(component, WM8960_POWER1, 0);
+		wm8960->dsch_start = ktime_get();
+		break;
+	}
+
+	return 0;
+}
+
+static int wm8960_set_bias_level_capless(struct snd_soc_component *component,
+					 enum snd_soc_bias_level level)
+{
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	u16 pm2 = snd_soc_component_read(component, WM8960_POWER2);
+	int reg, ret;
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+
+	case SND_SOC_BIAS_PREPARE:
+		switch (snd_soc_component_get_bias_level(component)) {
+		case SND_SOC_BIAS_STANDBY:
+			/* Enable anti pop mode */
+			snd_soc_component_update_bits(component, WM8960_APOP1,
+					    WM8960_POBCTRL | WM8960_SOFT_ST |
+					    WM8960_BUFDCOPEN,
+					    WM8960_POBCTRL | WM8960_SOFT_ST |
+					    WM8960_BUFDCOPEN);
+
+			/* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
+			reg = 0;
+			if (wm8960->lout1 && wm8960->lout1->power)
+				reg |= WM8960_PWR2_LOUT1;
+			if (wm8960->rout1 && wm8960->rout1->power)
+				reg |= WM8960_PWR2_ROUT1;
+			if (wm8960->out3 && wm8960->out3->power)
+				reg |= WM8960_PWR2_OUT3;
+			snd_soc_component_update_bits(component, WM8960_POWER2,
+					    WM8960_PWR2_LOUT1 |
+					    WM8960_PWR2_ROUT1 |
+					    WM8960_PWR2_OUT3, reg);
+
+			/* Enable VMID at 2*50k */
+			snd_soc_component_update_bits(component, WM8960_POWER1,
+					    WM8960_VMID_MASK, 0x80);
+
+			/* Ramp */
+			msleep(100);
+
+			/* Enable VREF */
+			snd_soc_component_update_bits(component, WM8960_POWER1,
+					    WM8960_VREF, WM8960_VREF);
+
+			msleep(100);
+
+			if (!IS_ERR(wm8960->mclk)) {
+				ret = clk_prepare_enable(wm8960->mclk);
+				if (ret) {
+					dev_err(component->dev,
+						"Failed to enable MCLK: %d\n",
+						ret);
+					return ret;
+				}
+			}
+
+			ret = wm8960_configure_clocking(component);
+			if (ret)
+				return ret;
+
+			break;
+
+		case SND_SOC_BIAS_ON:
+			/*
+			 * If it's sysclk auto mode, and the pll is enabled,
+			 * disable the pll
+			 */
+			if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
+				wm8960_set_pll(component, 0, 0);
+
+			if (!IS_ERR(wm8960->mclk))
+				clk_disable_unprepare(wm8960->mclk);
+
+			/* Enable anti-pop mode */
+			snd_soc_component_update_bits(component, WM8960_APOP1,
+					    WM8960_POBCTRL | WM8960_SOFT_ST |
+					    WM8960_BUFDCOPEN,
+					    WM8960_POBCTRL | WM8960_SOFT_ST |
+					    WM8960_BUFDCOPEN);
+
+			/* Disable VMID and VREF */
+			snd_soc_component_update_bits(component, WM8960_POWER1,
+					    WM8960_VREF | WM8960_VMID_MASK, 0);
+			break;
+
+		case SND_SOC_BIAS_OFF:
+			regcache_sync(wm8960->regmap);
+			break;
+		default:
+			break;
+		}
+		break;
+
+	case SND_SOC_BIAS_STANDBY:
+		switch (snd_soc_component_get_bias_level(component)) {
+		case SND_SOC_BIAS_PREPARE:
+			/* Disable HP discharge */
+			snd_soc_component_update_bits(component, WM8960_APOP2,
+					    WM8960_DISOP | WM8960_DRES_MASK,
+					    0);
+
+			/* Disable anti-pop features */
+			snd_soc_component_update_bits(component, WM8960_APOP1,
+					    WM8960_POBCTRL | WM8960_SOFT_ST |
+					    WM8960_BUFDCOPEN,
+					    WM8960_POBCTRL | WM8960_SOFT_ST |
+					    WM8960_BUFDCOPEN);
+			break;
+
+		default:
+			break;
+		}
+		break;
+
+	case SND_SOC_BIAS_OFF:
+		break;
+	}
+
+	return 0;
+}
+
+/* PLL divisors */
+struct _pll_div {
+	u32 pre_div:1;
+	u32 n:4;
+	u32 k:24;
+};
+
+static bool is_pll_freq_available(unsigned int source, unsigned int target)
+{
+	unsigned int Ndiv;
+
+	if (source == 0 || target == 0)
+		return false;
+
+	/* Scale up target to PLL operating frequency */
+	target *= 4;
+	Ndiv = target / source;
+
+	if (Ndiv < 6) {
+		source >>= 1;
+		Ndiv = target / source;
+	}
+
+	if ((Ndiv < 6) || (Ndiv > 12))
+		return false;
+
+	return true;
+}
+
+/* The size in bits of the pll divide multiplied by 10
+ * to allow rounding later */
+#define FIXED_PLL_SIZE ((1 << 24) * 10)
+
+static int pll_factors(unsigned int source, unsigned int target,
+		       struct _pll_div *pll_div)
+{
+	unsigned long long Kpart;
+	unsigned int K, Ndiv, Nmod;
+
+	pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
+
+	/* Scale up target to PLL operating frequency */
+	target *= 4;
+
+	Ndiv = target / source;
+	if (Ndiv < 6) {
+		source >>= 1;
+		pll_div->pre_div = 1;
+		Ndiv = target / source;
+	} else
+		pll_div->pre_div = 0;
+
+	if ((Ndiv < 6) || (Ndiv > 12)) {
+		pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
+		return -EINVAL;
+	}
+
+	pll_div->n = Ndiv;
+	Nmod = target % source;
+	Kpart = FIXED_PLL_SIZE * (long long)Nmod;
+
+	do_div(Kpart, source);
+
+	K = Kpart & 0xFFFFFFFF;
+
+	/* Check if we need to round */
+	if ((K % 10) >= 5)
+		K += 5;
+
+	/* Move down to proper range now rounding is done */
+	K /= 10;
+
+	pll_div->k = K;
+
+	pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
+		 pll_div->n, pll_div->k, pll_div->pre_div);
+
+	return 0;
+}
+
+static int wm8960_set_pll(struct snd_soc_component *component,
+		unsigned int freq_in, unsigned int freq_out)
+{
+	u16 reg;
+	static struct _pll_div pll_div;
+	int ret;
+
+	if (freq_in && freq_out) {
+		ret = pll_factors(freq_in, freq_out, &pll_div);
+		if (ret != 0)
+			return ret;
+	}
+
+	/* Disable the PLL: even if we are changing the frequency the
+	 * PLL needs to be disabled while we do so. */
+	snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0);
+	snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0);
+
+	if (!freq_in || !freq_out)
+		return 0;
+
+	reg = snd_soc_component_read(component, WM8960_PLL1) & ~0x3f;
+	reg |= pll_div.pre_div << 4;
+	reg |= pll_div.n;
+
+	if (pll_div.k) {
+		reg |= 0x20;
+
+		snd_soc_component_write(component, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
+		snd_soc_component_write(component, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
+		snd_soc_component_write(component, WM8960_PLL4, pll_div.k & 0xff);
+	}
+	snd_soc_component_write(component, WM8960_PLL1, reg);
+
+	/* Turn it on */
+	snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0x1);
+	msleep(250);
+	snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0x1);
+
+	return 0;
+}
+
+static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
+		int source, unsigned int freq_in, unsigned int freq_out)
+{
+	struct snd_soc_component *component = codec_dai->component;
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+
+	wm8960->freq_in = freq_in;
+
+	if (pll_id == WM8960_SYSCLK_AUTO)
+		return 0;
+
+	return wm8960_set_pll(component, freq_in, freq_out);
+}
+
+static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
+		int div_id, int div)
+{
+	struct snd_soc_component *component = codec_dai->component;
+	u16 reg;
+
+	switch (div_id) {
+	case WM8960_SYSCLKDIV:
+		reg = snd_soc_component_read(component, WM8960_CLOCK1) & 0x1f9;
+		snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
+		break;
+	case WM8960_DACDIV:
+		reg = snd_soc_component_read(component, WM8960_CLOCK1) & 0x1c7;
+		snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
+		break;
+	case WM8960_OPCLKDIV:
+		reg = snd_soc_component_read(component, WM8960_PLL1) & 0x03f;
+		snd_soc_component_write(component, WM8960_PLL1, reg | div);
+		break;
+	case WM8960_DCLKDIV:
+		reg = snd_soc_component_read(component, WM8960_CLOCK2) & 0x03f;
+		snd_soc_component_write(component, WM8960_CLOCK2, reg | div);
+		break;
+	case WM8960_TOCLKSEL:
+		reg = snd_soc_component_read(component, WM8960_ADDCTL1) & 0x1fd;
+		snd_soc_component_write(component, WM8960_ADDCTL1, reg | div);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int wm8960_set_bias_level(struct snd_soc_component *component,
+				 enum snd_soc_bias_level level)
+{
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+
+	return wm8960->set_bias_level(component, level);
+}
+
+static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
+					unsigned int freq, int dir)
+{
+	struct snd_soc_component *component = dai->component;
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+
+	switch (clk_id) {
+	case WM8960_SYSCLK_MCLK:
+		snd_soc_component_update_bits(component, WM8960_CLOCK1,
+					0x1, WM8960_SYSCLK_MCLK);
+		break;
+	case WM8960_SYSCLK_PLL:
+		snd_soc_component_update_bits(component, WM8960_CLOCK1,
+					0x1, WM8960_SYSCLK_PLL);
+		break;
+	case WM8960_SYSCLK_AUTO:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	wm8960->sysclk = freq;
+	wm8960->clk_id = clk_id;
+
+	return 0;
+}
+
+#define WM8960_RATES SNDRV_PCM_RATE_8000_48000
+
+#define WM8960_FORMATS \
+	(SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
+	SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static const struct snd_soc_dai_ops wm8960_dai_ops = {
+	.hw_params = wm8960_hw_params,
+	.hw_free = wm8960_hw_free,
+	.mute_stream = wm8960_mute,
+	.set_fmt = wm8960_set_dai_fmt,
+	.set_clkdiv = wm8960_set_dai_clkdiv,
+	.set_pll = wm8960_set_dai_pll,
+	.set_sysclk = wm8960_set_dai_sysclk,
+	.no_capture_mute = 1,
+};
+
+static struct snd_soc_dai_driver wm8960_dai = {
+	.name = "wm8960-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8960_RATES,
+		.formats = WM8960_FORMATS,},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8960_RATES,
+		.formats = WM8960_FORMATS,},
+	.ops = &wm8960_dai_ops,
+	.symmetric_rate = 1,
+};
+
+static int wm8960_probe(struct snd_soc_component *component)
+{
+	struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
+	struct wm8960_data *pdata = &wm8960->pdata;
+
+	if (pdata->capless)
+		wm8960->set_bias_level = wm8960_set_bias_level_capless;
+	else
+		wm8960->set_bias_level = wm8960_set_bias_level_out3;
+
+	snd_soc_add_component_controls(component, wm8960_snd_controls,
+				     ARRAY_SIZE(wm8960_snd_controls));
+	wm8960_add_widgets(component);
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver soc_component_dev_wm8960 = {
+	.probe			= wm8960_probe,
+	.set_bias_level		= wm8960_set_bias_level,
+	.suspend_bias_off	= 1,
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+};
+
+static const struct regmap_config wm8960_regmap = {
+	.reg_bits = 7,
+	.val_bits = 9,
+	.max_register = WM8960_PLL4,
+
+	.reg_defaults = wm8960_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
+	.cache_type = REGCACHE_RBTREE,
+
+	.volatile_reg = wm8960_volatile,
+};
+
+static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
+				struct wm8960_data *pdata)
+{
+	const struct device_node *np = i2c->dev.of_node;
+
+	if (of_property_read_bool(np, "wlf,capless"))
+		pdata->capless = true;
+
+	if (of_property_read_bool(np, "wlf,shared-lrclk"))
+		pdata->shared_lrclk = true;
+
+	of_property_read_u32_array(np, "wlf,gpio-cfg", pdata->gpio_cfg,
+				   ARRAY_SIZE(pdata->gpio_cfg));
+
+	of_property_read_u32_array(np, "wlf,hp-cfg", pdata->hp_cfg,
+				   ARRAY_SIZE(pdata->hp_cfg));
+}
+
+static int wm8960_i2c_probe(struct i2c_client *i2c)
+{
+	struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
+	struct wm8960_priv *wm8960;
+	int ret;
+
+	wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
+			      GFP_KERNEL);
+	if (wm8960 == NULL)
+		return -ENOMEM;
+
+	wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
+	if (IS_ERR(wm8960->mclk)) {
+		if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+	}
+
+	wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
+	if (IS_ERR(wm8960->regmap))
+		return PTR_ERR(wm8960->regmap);
+
+	if (pdata)
+		memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
+	else if (i2c->dev.of_node)
+		wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
+
+	ret = wm8960_reset(wm8960->regmap);
+	if (ret != 0) {
+		dev_err(&i2c->dev, "Failed to issue reset\n");
+		return ret;
+	}
+
+	if (wm8960->pdata.shared_lrclk) {
+		ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
+					 0x4, 0x4);
+		if (ret != 0) {
+			dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	/* Latch the update bits */
+	regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
+	regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
+
+	/* ADCLRC pin configured as GPIO. */
+	regmap_update_bits(wm8960->regmap, WM8960_IFACE2, 1 << 6,
+			   wm8960->pdata.gpio_cfg[0] << 6);
+	regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 0xF << 4,
+			   wm8960->pdata.gpio_cfg[1] << 4);
+
+	/* Enable headphone jack detect */
+	regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 3 << 2,
+			   wm8960->pdata.hp_cfg[0] << 2);
+	regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 3 << 5,
+			   wm8960->pdata.hp_cfg[1] << 5);
+	regmap_update_bits(wm8960->regmap, WM8960_ADDCTL1, 3,
+			   wm8960->pdata.hp_cfg[2]);
+
+	i2c_set_clientdata(i2c, wm8960);
+
+	ret = devm_snd_soc_register_component(&i2c->dev,
+			&soc_component_dev_wm8960, &wm8960_dai, 1);
+
+	return ret;
+}
+
+static void wm8960_i2c_remove(struct i2c_client *client)
+{}
+
+static const struct i2c_device_id wm8960_i2c_id[] = {
+	{ "wm8960", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
+
+#if defined(CONFIG_OF)
+static const struct of_device_id wm8960_of_match[] = {
+       { .compatible = "wlf,wm8960", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, wm8960_of_match);
+#endif
+
+#if defined(CONFIG_ACPI)
+static const struct acpi_device_id wm8960_acpi_match[] = {
+	{ "1AEC8960", 0 }, /* Wolfson PCI ID + part ID */
+	{ "10138960", 0 }, /* Cirrus Logic PCI ID + part ID */
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, wm8960_acpi_match);
+#endif
+
+static struct i2c_driver wm8960_i2c_driver = {
+	.driver = {
+		.name = "wm8960",
+		.of_match_table = of_match_ptr(wm8960_of_match),
+		.acpi_match_table = ACPI_PTR(wm8960_acpi_match),
+	},
+	.probe_new = wm8960_i2c_probe,
+	.remove =   wm8960_i2c_remove,
+	.id_table = wm8960_i2c_id,
+};
+
+module_i2c_driver(wm8960_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC WM8960 driver");
+MODULE_AUTHOR("Liam Girdwood");
+MODULE_LICENSE("GPL");