MFD: twl4030: add twl4030_codec MFD as a new child to the core
authorPeter Ujfalusi <peter.ujfalusi@nokia.com>
Thu, 22 Oct 2009 10:26:45 +0000 (13:26 +0300)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Sun, 25 Oct 2009 17:15:08 +0000 (17:15 +0000)
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>
drivers/mfd/Kconfig
drivers/mfd/Makefile
drivers/mfd/twl4030-codec.c [new file with mode: 0644]
drivers/mfd/twl4030-core.c
include/linux/i2c/twl4030.h
include/linux/mfd/twl4030-codec.h [new file with mode: 0644]

index 570be13..08f2d07 100644 (file)
@@ -121,6 +121,12 @@ config TWL4030_POWER
          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
index f3b277b..af0fc90 100644 (file)
@@ -26,6 +26,7 @@ obj-$(CONFIG_MENELAUS)                += menelaus.o
 
 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 (file)
index 0000000..9710307
--- /dev/null
@@ -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");
+
index e424cf6..0ee81e4 100644 (file)
 #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 @@ add_children(struct twl4030_platform_data *pdata, unsigned long features)
                        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);
index 2d02dfd..42d6c72 100644 (file)
@@ -401,6 +401,23 @@ struct twl4030_power_data {
 
 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_platform_data {
        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 (file)
index 0000000..ef0a304
--- /dev/null
@@ -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__ */