MFD: twl4030: add twl4030_codec MFD as a new child to the core
New MFD child to twl4030 MFD device.
Reason for the twl4030_codec MFD: the vibra control is actually in the codec
part of the twl4030. If both the vibra and the audio functionality is needed
from the twl4030 at the same time, than they need to control the codec power
and APLL at the same time without breaking the other driver.
Also these two has to be able to work without the need for the other driver.
This MFD device will be used by the drivers, which needs resources
from the twl4030 codec like audio and vibra.
The platform specific configuration data is passed along to the
child drivers (audio, vibra).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 570be13..08f2d07 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -121,6 +121,12 @@
and load scripts controling which resources are switched off/on
or reset when a sleep, wakeup or warm reset event occurs.
+config TWL4030_CODEC
+ bool
+ depends on TWL4030_CORE
+ select MFD_CORE
+ default n
+
config MFD_TMIO
bool
default n
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index f3b277b..af0fc90 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -26,6 +26,7 @@
obj-$(CONFIG_TWL4030_CORE) += twl4030-core.o twl4030-irq.o
obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o
+obj-$(CONFIG_TWL4030_CODEC) += twl4030-codec.o
obj-$(CONFIG_MFD_MC13783) += mc13783-core.o
diff --git a/drivers/mfd/twl4030-codec.c b/drivers/mfd/twl4030-codec.c
new file mode 100644
index 0000000..9710307
--- /dev/null
+++ b/drivers/mfd/twl4030-codec.c
@@ -0,0 +1,241 @@
+/*
+ * MFD driver for twl4030 codec submodule
+ *
+ * Author: Peter Ujfalusi <peter.ujfalusi@nokia.com>
+ *
+ * Copyright: (C) 2009 Nokia Corporation
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/platform_device.h>
+#include <linux/i2c/twl4030.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/twl4030-codec.h>
+
+#define TWL4030_CODEC_CELLS 2
+
+static struct platform_device *twl4030_codec_dev;
+
+struct twl4030_codec_resource {
+ int request_count;
+ u8 reg;
+ u8 mask;
+};
+
+struct twl4030_codec {
+ struct mutex mutex;
+ struct twl4030_codec_resource resource[TWL4030_CODEC_RES_MAX];
+ struct mfd_cell cells[TWL4030_CODEC_CELLS];
+};
+
+/*
+ * Modify the resource, the function returns the content of the register
+ * after the modification.
+ */
+static int twl4030_codec_set_resource(enum twl4030_codec_res id, int enable)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+ u8 val;
+
+ twl4030_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &val,
+ codec->resource[id].reg);
+
+ if (enable)
+ val |= codec->resource[id].mask;
+ else
+ val &= ~codec->resource[id].mask;
+
+ twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+ val, codec->resource[id].reg);
+
+ return val;
+}
+
+static inline int twl4030_codec_get_resource(enum twl4030_codec_res id)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+ u8 val;
+
+ twl4030_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &val,
+ codec->resource[id].reg);
+
+ return val;
+}
+
+/*
+ * Enable the resource.
+ * The function returns with error or the content of the register
+ */
+int twl4030_codec_enable_resource(enum twl4030_codec_res id)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+ int val;
+
+ if (id >= TWL4030_CODEC_RES_MAX) {
+ dev_err(&twl4030_codec_dev->dev,
+ "Invalid resource ID (%u)\n", id);
+ return -EINVAL;
+ }
+
+ mutex_lock(&codec->mutex);
+ if (!codec->resource[id].request_count)
+ /* Resource was disabled, enable it */
+ val = twl4030_codec_set_resource(id, 1);
+ else
+ val = twl4030_codec_get_resource(id);
+
+ codec->resource[id].request_count++;
+ mutex_unlock(&codec->mutex);
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(twl4030_codec_enable_resource);
+
+/*
+ * Disable the resource.
+ * The function returns with error or the content of the register
+ */
+int twl4030_codec_disable_resource(unsigned id)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+ int val;
+
+ if (id >= TWL4030_CODEC_RES_MAX) {
+ dev_err(&twl4030_codec_dev->dev,
+ "Invalid resource ID (%u)\n", id);
+ return -EINVAL;
+ }
+
+ mutex_lock(&codec->mutex);
+ if (!codec->resource[id].request_count) {
+ dev_err(&twl4030_codec_dev->dev,
+ "Resource has been disabled already (%u)\n", id);
+ mutex_unlock(&codec->mutex);
+ return -EPERM;
+ }
+ codec->resource[id].request_count--;
+
+ if (!codec->resource[id].request_count)
+ /* Resource can be disabled now */
+ val = twl4030_codec_set_resource(id, 0);
+ else
+ val = twl4030_codec_get_resource(id);
+
+ mutex_unlock(&codec->mutex);
+
+ return val;
+}
+EXPORT_SYMBOL_GPL(twl4030_codec_disable_resource);
+
+static int __devinit twl4030_codec_probe(struct platform_device *pdev)
+{
+ struct twl4030_codec *codec;
+ struct twl4030_codec_data *pdata = pdev->dev.platform_data;
+ struct mfd_cell *cell = NULL;
+ int ret, childs = 0;
+
+ codec = kzalloc(sizeof(struct twl4030_codec), GFP_KERNEL);
+ if (!codec)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, codec);
+
+ twl4030_codec_dev = pdev;
+ mutex_init(&codec->mutex);
+
+ /* Codec power */
+ codec->resource[TWL4030_CODEC_RES_POWER].reg = TWL4030_REG_CODEC_MODE;
+ codec->resource[TWL4030_CODEC_RES_POWER].mask = TWL4030_CODECPDZ;
+
+ /* PLL */
+ codec->resource[TWL4030_CODEC_RES_APLL].reg = TWL4030_REG_APLL_CTL;
+ codec->resource[TWL4030_CODEC_RES_APLL].mask = TWL4030_APLL_EN;
+
+ if (pdata->audio) {
+ cell = &codec->cells[childs];
+ cell->name = "twl4030_codec_audio";
+ cell->platform_data = pdata->audio;
+ cell->data_size = sizeof(*pdata->audio);
+ childs++;
+ }
+ if (pdata->vibra) {
+ cell = &codec->cells[childs];
+ cell->name = "twl4030_codec_vibra";
+ cell->platform_data = pdata->vibra;
+ cell->data_size = sizeof(*pdata->vibra);
+ childs++;
+ }
+
+ if (childs)
+ ret = mfd_add_devices(&pdev->dev, pdev->id, codec->cells,
+ childs, NULL, 0);
+ else {
+ dev_err(&pdev->dev, "No platform data found for childs\n");
+ ret = -ENODEV;
+ }
+
+ if (!ret)
+ return 0;
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(codec);
+ twl4030_codec_dev = NULL;
+ return ret;
+}
+
+static int __devexit twl4030_codec_remove(struct platform_device *pdev)
+{
+ struct twl4030_codec *codec = platform_get_drvdata(pdev);
+
+ mfd_remove_devices(&pdev->dev);
+ platform_set_drvdata(pdev, NULL);
+ kfree(codec);
+ twl4030_codec_dev = NULL;
+
+ return 0;
+}
+
+MODULE_ALIAS("platform:twl4030_codec");
+
+static struct platform_driver twl4030_codec_driver = {
+ .probe = twl4030_codec_probe,
+ .remove = __devexit_p(twl4030_codec_remove),
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "twl4030_codec",
+ },
+};
+
+static int __devinit twl4030_codec_init(void)
+{
+ return platform_driver_register(&twl4030_codec_driver);
+}
+module_init(twl4030_codec_init);
+
+static void __devexit twl4030_codec_exit(void)
+{
+ platform_driver_unregister(&twl4030_codec_driver);
+}
+module_exit(twl4030_codec_exit);
+
+MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@nokia.com>");
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/mfd/twl4030-core.c b/drivers/mfd/twl4030-core.c
index e424cf6..0ee81e4 100644
--- a/drivers/mfd/twl4030-core.c
+++ b/drivers/mfd/twl4030-core.c
@@ -114,6 +114,12 @@
#define twl_has_watchdog() false
#endif
+#if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE)
+#define twl_has_codec() true
+#else
+#define twl_has_codec() false
+#endif
+
/* Triton Core internal information (BEGIN) */
/* Last - for index max*/
@@ -557,6 +563,14 @@
return PTR_ERR(child);
}
+ if (twl_has_codec() && pdata->codec) {
+ child = add_child(1, "twl4030_codec",
+ pdata->codec, sizeof(*pdata->codec),
+ false, 0, 0);
+ if (IS_ERR(child))
+ return PTR_ERR(child);
+ }
+
if (twl_has_regulator()) {
/*
child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1);
diff --git a/include/linux/i2c/twl4030.h b/include/linux/i2c/twl4030.h
index 2d02dfd..42d6c72 100644
--- a/include/linux/i2c/twl4030.h
+++ b/include/linux/i2c/twl4030.h
@@ -401,6 +401,23 @@
extern void twl4030_power_init(struct twl4030_power_data *triton2_scripts);
+struct twl4030_codec_audio_data {
+ unsigned int audio_mclk;
+ unsigned int ramp_delay_value;
+ unsigned int hs_extmute:1;
+ void (*set_hs_extmute)(int mute);
+};
+
+struct twl4030_codec_vibra_data {
+ unsigned int audio_mclk;
+ unsigned int coexist;
+};
+
+struct twl4030_codec_data {
+ struct twl4030_codec_audio_data *audio;
+ struct twl4030_codec_vibra_data *vibra;
+};
+
struct twl4030_platform_data {
unsigned irq_base, irq_end;
struct twl4030_bci_platform_data *bci;
@@ -409,6 +426,7 @@
struct twl4030_keypad_data *keypad;
struct twl4030_usb_data *usb;
struct twl4030_power_data *power;
+ struct twl4030_codec_data *codec;
/* LDO regulators */
struct regulator_init_data *vdac;
diff --git a/include/linux/mfd/twl4030-codec.h b/include/linux/mfd/twl4030-codec.h
new file mode 100644
index 0000000..ef0a304
--- /dev/null
+++ b/include/linux/mfd/twl4030-codec.h
@@ -0,0 +1,271 @@
+/*
+ * MFD driver for twl4030 codec submodule
+ *
+ * Author: Peter Ujfalusi <peter.ujfalusi@nokia.com>
+ *
+ * Copyright: (C) 2009 Nokia Corporation
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __TWL4030_CODEC_H__
+#define __TWL4030_CODEC_H__
+
+/* Codec registers */
+#define TWL4030_REG_CODEC_MODE 0x01
+#define TWL4030_REG_OPTION 0x02
+#define TWL4030_REG_UNKNOWN 0x03
+#define TWL4030_REG_MICBIAS_CTL 0x04
+#define TWL4030_REG_ANAMICL 0x05
+#define TWL4030_REG_ANAMICR 0x06
+#define TWL4030_REG_AVADC_CTL 0x07
+#define TWL4030_REG_ADCMICSEL 0x08
+#define TWL4030_REG_DIGMIXING 0x09
+#define TWL4030_REG_ATXL1PGA 0x0A
+#define TWL4030_REG_ATXR1PGA 0x0B
+#define TWL4030_REG_AVTXL2PGA 0x0C
+#define TWL4030_REG_AVTXR2PGA 0x0D
+#define TWL4030_REG_AUDIO_IF 0x0E
+#define TWL4030_REG_VOICE_IF 0x0F
+#define TWL4030_REG_ARXR1PGA 0x10
+#define TWL4030_REG_ARXL1PGA 0x11
+#define TWL4030_REG_ARXR2PGA 0x12
+#define TWL4030_REG_ARXL2PGA 0x13
+#define TWL4030_REG_VRXPGA 0x14
+#define TWL4030_REG_VSTPGA 0x15
+#define TWL4030_REG_VRX2ARXPGA 0x16
+#define TWL4030_REG_AVDAC_CTL 0x17
+#define TWL4030_REG_ARX2VTXPGA 0x18
+#define TWL4030_REG_ARXL1_APGA_CTL 0x19
+#define TWL4030_REG_ARXR1_APGA_CTL 0x1A
+#define TWL4030_REG_ARXL2_APGA_CTL 0x1B
+#define TWL4030_REG_ARXR2_APGA_CTL 0x1C
+#define TWL4030_REG_ATX2ARXPGA 0x1D
+#define TWL4030_REG_BT_IF 0x1E
+#define TWL4030_REG_BTPGA 0x1F
+#define TWL4030_REG_BTSTPGA 0x20
+#define TWL4030_REG_EAR_CTL 0x21
+#define TWL4030_REG_HS_SEL 0x22
+#define TWL4030_REG_HS_GAIN_SET 0x23
+#define TWL4030_REG_HS_POPN_SET 0x24
+#define TWL4030_REG_PREDL_CTL 0x25
+#define TWL4030_REG_PREDR_CTL 0x26
+#define TWL4030_REG_PRECKL_CTL 0x27
+#define TWL4030_REG_PRECKR_CTL 0x28
+#define TWL4030_REG_HFL_CTL 0x29
+#define TWL4030_REG_HFR_CTL 0x2A
+#define TWL4030_REG_ALC_CTL 0x2B
+#define TWL4030_REG_ALC_SET1 0x2C
+#define TWL4030_REG_ALC_SET2 0x2D
+#define TWL4030_REG_BOOST_CTL 0x2E
+#define TWL4030_REG_SOFTVOL_CTL 0x2F
+#define TWL4030_REG_DTMF_FREQSEL 0x30
+#define TWL4030_REG_DTMF_TONEXT1H 0x31
+#define TWL4030_REG_DTMF_TONEXT1L 0x32
+#define TWL4030_REG_DTMF_TONEXT2H 0x33
+#define TWL4030_REG_DTMF_TONEXT2L 0x34
+#define TWL4030_REG_DTMF_TONOFF 0x35
+#define TWL4030_REG_DTMF_WANONOFF 0x36
+#define TWL4030_REG_I2S_RX_SCRAMBLE_H 0x37
+#define TWL4030_REG_I2S_RX_SCRAMBLE_M 0x38
+#define TWL4030_REG_I2S_RX_SCRAMBLE_L 0x39
+#define TWL4030_REG_APLL_CTL 0x3A
+#define TWL4030_REG_DTMF_CTL 0x3B
+#define TWL4030_REG_DTMF_PGA_CTL2 0x3C
+#define TWL4030_REG_DTMF_PGA_CTL1 0x3D
+#define TWL4030_REG_MISC_SET_1 0x3E
+#define TWL4030_REG_PCMBTMUX 0x3F
+#define TWL4030_REG_RX_PATH_SEL 0x43
+#define TWL4030_REG_VDL_APGA_CTL 0x44
+#define TWL4030_REG_VIBRA_CTL 0x45
+#define TWL4030_REG_VIBRA_SET 0x46
+#define TWL4030_REG_VIBRA_PWM_SET 0x47
+#define TWL4030_REG_ANAMIC_GAIN 0x48
+#define TWL4030_REG_MISC_SET_2 0x49
+
+/* Bitfield Definitions */
+
+/* TWL4030_CODEC_MODE (0x01) Fields */
+#define TWL4030_APLL_RATE 0xF0
+#define TWL4030_APLL_RATE_8000 0x00
+#define TWL4030_APLL_RATE_11025 0x10
+#define TWL4030_APLL_RATE_12000 0x20
+#define TWL4030_APLL_RATE_16000 0x40
+#define TWL4030_APLL_RATE_22050 0x50
+#define TWL4030_APLL_RATE_24000 0x60
+#define TWL4030_APLL_RATE_32000 0x80
+#define TWL4030_APLL_RATE_44100 0x90
+#define TWL4030_APLL_RATE_48000 0xA0
+#define TWL4030_APLL_RATE_96000 0xE0
+#define TWL4030_SEL_16K 0x08
+#define TWL4030_CODECPDZ 0x02
+#define TWL4030_OPT_MODE 0x01
+#define TWL4030_OPTION_1 (1 << 0)
+#define TWL4030_OPTION_2 (0 << 0)
+
+/* TWL4030_OPTION (0x02) Fields */
+#define TWL4030_ATXL1_EN (1 << 0)
+#define TWL4030_ATXR1_EN (1 << 1)
+#define TWL4030_ATXL2_VTXL_EN (1 << 2)
+#define TWL4030_ATXR2_VTXR_EN (1 << 3)
+#define TWL4030_ARXL1_VRX_EN (1 << 4)
+#define TWL4030_ARXR1_EN (1 << 5)
+#define TWL4030_ARXL2_EN (1 << 6)
+#define TWL4030_ARXR2_EN (1 << 7)
+
+/* TWL4030_REG_MICBIAS_CTL (0x04) Fields */
+#define TWL4030_MICBIAS2_CTL 0x40
+#define TWL4030_MICBIAS1_CTL 0x20
+#define TWL4030_HSMICBIAS_EN 0x04
+#define TWL4030_MICBIAS2_EN 0x02
+#define TWL4030_MICBIAS1_EN 0x01
+
+/* ANAMICL (0x05) Fields */
+#define TWL4030_CNCL_OFFSET_START 0x80
+#define TWL4030_OFFSET_CNCL_SEL 0x60
+#define TWL4030_OFFSET_CNCL_SEL_ARX1 0x00
+#define TWL4030_OFFSET_CNCL_SEL_ARX2 0x20
+#define TWL4030_OFFSET_CNCL_SEL_VRX 0x40
+#define TWL4030_OFFSET_CNCL_SEL_ALL 0x60
+#define TWL4030_MICAMPL_EN 0x10
+#define TWL4030_CKMIC_EN 0x08
+#define TWL4030_AUXL_EN 0x04
+#define TWL4030_HSMIC_EN 0x02
+#define TWL4030_MAINMIC_EN 0x01
+
+/* ANAMICR (0x06) Fields */
+#define TWL4030_MICAMPR_EN 0x10
+#define TWL4030_AUXR_EN 0x04
+#define TWL4030_SUBMIC_EN 0x01
+
+/* AVADC_CTL (0x07) Fields */
+#define TWL4030_ADCL_EN 0x08
+#define TWL4030_AVADC_CLK_PRIORITY 0x04
+#define TWL4030_ADCR_EN 0x02
+
+/* TWL4030_REG_ADCMICSEL (0x08) Fields */
+#define TWL4030_DIGMIC1_EN 0x08
+#define TWL4030_TX2IN_SEL 0x04
+#define TWL4030_DIGMIC0_EN 0x02
+#define TWL4030_TX1IN_SEL 0x01
+
+/* AUDIO_IF (0x0E) Fields */
+#define TWL4030_AIF_SLAVE_EN 0x80
+#define TWL4030_DATA_WIDTH 0x60
+#define TWL4030_DATA_WIDTH_16S_16W 0x00
+#define TWL4030_DATA_WIDTH_32S_16W 0x40
+#define TWL4030_DATA_WIDTH_32S_24W 0x60
+#define TWL4030_AIF_FORMAT 0x18
+#define TWL4030_AIF_FORMAT_CODEC 0x00
+#define TWL4030_AIF_FORMAT_LEFT 0x08
+#define TWL4030_AIF_FORMAT_RIGHT 0x10
+#define TWL4030_AIF_FORMAT_TDM 0x18
+#define TWL4030_AIF_TRI_EN 0x04
+#define TWL4030_CLK256FS_EN 0x02
+#define TWL4030_AIF_EN 0x01
+
+/* VOICE_IF (0x0F) Fields */
+#define TWL4030_VIF_SLAVE_EN 0x80
+#define TWL4030_VIF_DIN_EN 0x40
+#define TWL4030_VIF_DOUT_EN 0x20
+#define TWL4030_VIF_SWAP 0x10
+#define TWL4030_VIF_FORMAT 0x08
+#define TWL4030_VIF_TRI_EN 0x04
+#define TWL4030_VIF_SUB_EN 0x02
+#define TWL4030_VIF_EN 0x01
+
+/* EAR_CTL (0x21) */
+#define TWL4030_EAR_GAIN 0x30
+
+/* HS_GAIN_SET (0x23) Fields */
+#define TWL4030_HSR_GAIN 0x0C
+#define TWL4030_HSR_GAIN_PWR_DOWN 0x00
+#define TWL4030_HSR_GAIN_PLUS_6DB 0x04
+#define TWL4030_HSR_GAIN_0DB 0x08
+#define TWL4030_HSR_GAIN_MINUS_6DB 0x0C
+#define TWL4030_HSL_GAIN 0x03
+#define TWL4030_HSL_GAIN_PWR_DOWN 0x00
+#define TWL4030_HSL_GAIN_PLUS_6DB 0x01
+#define TWL4030_HSL_GAIN_0DB 0x02
+#define TWL4030_HSL_GAIN_MINUS_6DB 0x03
+
+/* HS_POPN_SET (0x24) Fields */
+#define TWL4030_VMID_EN 0x40
+#define TWL4030_EXTMUTE 0x20
+#define TWL4030_RAMP_DELAY 0x1C
+#define TWL4030_RAMP_DELAY_20MS 0x00
+#define TWL4030_RAMP_DELAY_40MS 0x04
+#define TWL4030_RAMP_DELAY_81MS 0x08
+#define TWL4030_RAMP_DELAY_161MS 0x0C
+#define TWL4030_RAMP_DELAY_323MS 0x10
+#define TWL4030_RAMP_DELAY_645MS 0x14
+#define TWL4030_RAMP_DELAY_1291MS 0x18
+#define TWL4030_RAMP_DELAY_2581MS 0x1C
+#define TWL4030_RAMP_EN 0x02
+
+/* PREDL_CTL (0x25) */
+#define TWL4030_PREDL_GAIN 0x30
+
+/* PREDR_CTL (0x26) */
+#define TWL4030_PREDR_GAIN 0x30
+
+/* PRECKL_CTL (0x27) */
+#define TWL4030_PRECKL_GAIN 0x30
+
+/* PRECKR_CTL (0x28) */
+#define TWL4030_PRECKR_GAIN 0x30
+
+/* HFL_CTL (0x29, 0x2A) Fields */
+#define TWL4030_HF_CTL_HB_EN 0x04
+#define TWL4030_HF_CTL_LOOP_EN 0x08
+#define TWL4030_HF_CTL_RAMP_EN 0x10
+#define TWL4030_HF_CTL_REF_EN 0x20
+
+/* APLL_CTL (0x3A) Fields */
+#define TWL4030_APLL_EN 0x10
+#define TWL4030_APLL_INFREQ 0x0F
+#define TWL4030_APLL_INFREQ_19200KHZ 0x05
+#define TWL4030_APLL_INFREQ_26000KHZ 0x06
+#define TWL4030_APLL_INFREQ_38400KHZ 0x0F
+
+/* REG_MISC_SET_1 (0x3E) Fields */
+#define TWL4030_CLK64_EN 0x80
+#define TWL4030_SCRAMBLE_EN 0x40
+#define TWL4030_FMLOOP_EN 0x20
+#define TWL4030_SMOOTH_ANAVOL_EN 0x02
+#define TWL4030_DIGMIC_LR_SWAP_EN 0x01
+
+/* VIBRA_CTL (0x45) */
+#define TWL4030_VIBRA_EN 0x01
+#define TWL4030_VIBRA_DIR 0x02
+#define TWL4030_VIBRA_AUDIO_SEL_L1 (0x00 << 2)
+#define TWL4030_VIBRA_AUDIO_SEL_R1 (0x01 << 2)
+#define TWL4030_VIBRA_AUDIO_SEL_L2 (0x02 << 2)
+#define TWL4030_VIBRA_AUDIO_SEL_R2 (0x03 << 2)
+#define TWL4030_VIBRA_SEL 0x10
+#define TWL4030_VIBRA_DIR_SEL 0x20
+
+/* TWL4030 codec resource IDs */
+enum twl4030_codec_res {
+ TWL4030_CODEC_RES_POWER = 0,
+ TWL4030_CODEC_RES_APLL,
+ TWL4030_CODEC_RES_MAX,
+};
+
+int twl4030_codec_disable_resource(enum twl4030_codec_res id);
+int twl4030_codec_enable_resource(enum twl4030_codec_res id);
+
+#endif /* End of __TWL4030_CODEC_H__ */