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-rw-r--r--sound/soc/codecs/da7210.c626
1 files changed, 626 insertions, 0 deletions
diff --git a/sound/soc/codecs/da7210.c b/sound/soc/codecs/da7210.c
new file mode 100644
index 00000000..92fd9d7a
--- /dev/null
+++ b/sound/soc/codecs/da7210.c
@@ -0,0 +1,626 @@
+/*
+ * DA7210 ALSA Soc codec driver
+ *
+ * Copyright (c) 2009 Dialog Semiconductor
+ * Written by David Chen <Dajun.chen@diasemi.com>
+ *
+ * Copyright (C) 2009 Renesas Solutions Corp.
+ * Cleanups by Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+
+/* DA7210 register space */
+#define DA7210_STATUS 0x02
+#define DA7210_STARTUP1 0x03
+#define DA7210_MIC_L 0x07
+#define DA7210_MIC_R 0x08
+#define DA7210_INMIX_L 0x0D
+#define DA7210_INMIX_R 0x0E
+#define DA7210_ADC_HPF 0x0F
+#define DA7210_ADC 0x10
+#define DA7210_DAC_HPF 0x14
+#define DA7210_DAC_L 0x15
+#define DA7210_DAC_R 0x16
+#define DA7210_DAC_SEL 0x17
+#define DA7210_OUTMIX_L 0x1C
+#define DA7210_OUTMIX_R 0x1D
+#define DA7210_HP_L_VOL 0x21
+#define DA7210_HP_R_VOL 0x22
+#define DA7210_HP_CFG 0x23
+#define DA7210_DAI_SRC_SEL 0x25
+#define DA7210_DAI_CFG1 0x26
+#define DA7210_DAI_CFG3 0x28
+#define DA7210_PLL_DIV1 0x29
+#define DA7210_PLL_DIV2 0x2A
+#define DA7210_PLL_DIV3 0x2B
+#define DA7210_PLL 0x2C
+#define DA7210_A_HID_UNLOCK 0x8A
+#define DA7210_A_TEST_UNLOCK 0x8B
+#define DA7210_A_PLL1 0x90
+#define DA7210_A_CP_MODE 0xA7
+
+/* STARTUP1 bit fields */
+#define DA7210_SC_MST_EN (1 << 0)
+
+/* MIC_L bit fields */
+#define DA7210_MICBIAS_EN (1 << 6)
+#define DA7210_MIC_L_EN (1 << 7)
+
+/* MIC_R bit fields */
+#define DA7210_MIC_R_EN (1 << 7)
+
+/* INMIX_L bit fields */
+#define DA7210_IN_L_EN (1 << 7)
+
+/* INMIX_R bit fields */
+#define DA7210_IN_R_EN (1 << 7)
+
+/* ADC bit fields */
+#define DA7210_ADC_L_EN (1 << 3)
+#define DA7210_ADC_R_EN (1 << 7)
+
+/* DAC/ADC HPF fields */
+#define DA7210_VOICE_F0_MASK (0x7 << 4)
+#define DA7210_VOICE_F0_25 (1 << 4)
+#define DA7210_VOICE_EN (1 << 7)
+
+/* DAC_SEL bit fields */
+#define DA7210_DAC_L_SRC_DAI_L (4 << 0)
+#define DA7210_DAC_L_EN (1 << 3)
+#define DA7210_DAC_R_SRC_DAI_R (5 << 4)
+#define DA7210_DAC_R_EN (1 << 7)
+
+/* OUTMIX_L bit fields */
+#define DA7210_OUT_L_EN (1 << 7)
+
+/* OUTMIX_R bit fields */
+#define DA7210_OUT_R_EN (1 << 7)
+
+/* HP_CFG bit fields */
+#define DA7210_HP_2CAP_MODE (1 << 1)
+#define DA7210_HP_SENSE_EN (1 << 2)
+#define DA7210_HP_L_EN (1 << 3)
+#define DA7210_HP_MODE (1 << 6)
+#define DA7210_HP_R_EN (1 << 7)
+
+/* DAI_SRC_SEL bit fields */
+#define DA7210_DAI_OUT_L_SRC (6 << 0)
+#define DA7210_DAI_OUT_R_SRC (7 << 4)
+
+/* DAI_CFG1 bit fields */
+#define DA7210_DAI_WORD_S16_LE (0 << 0)
+#define DA7210_DAI_WORD_S24_LE (2 << 0)
+#define DA7210_DAI_FLEN_64BIT (1 << 2)
+#define DA7210_DAI_MODE_MASTER (1 << 7)
+
+/* DAI_CFG3 bit fields */
+#define DA7210_DAI_FORMAT_I2SMODE (0 << 0)
+#define DA7210_DAI_OE (1 << 3)
+#define DA7210_DAI_EN (1 << 7)
+
+/*PLL_DIV3 bit fields */
+#define DA7210_MCLK_RANGE_10_20_MHZ (1 << 4)
+#define DA7210_PLL_BYP (1 << 6)
+
+/* PLL bit fields */
+#define DA7210_PLL_FS_MASK (0xF << 0)
+#define DA7210_PLL_FS_8000 (0x1 << 0)
+#define DA7210_PLL_FS_11025 (0x2 << 0)
+#define DA7210_PLL_FS_12000 (0x3 << 0)
+#define DA7210_PLL_FS_16000 (0x5 << 0)
+#define DA7210_PLL_FS_22050 (0x6 << 0)
+#define DA7210_PLL_FS_24000 (0x7 << 0)
+#define DA7210_PLL_FS_32000 (0x9 << 0)
+#define DA7210_PLL_FS_44100 (0xA << 0)
+#define DA7210_PLL_FS_48000 (0xB << 0)
+#define DA7210_PLL_FS_88200 (0xE << 0)
+#define DA7210_PLL_FS_96000 (0xF << 0)
+#define DA7210_PLL_EN (0x1 << 7)
+
+#define DA7210_VERSION "0.0.1"
+
+/*
+ * Playback Volume
+ *
+ * max : 0x3F (+15.0 dB)
+ * (1.5 dB step)
+ * min : 0x11 (-54.0 dB)
+ * mute : 0x10
+ * reserved : 0x00 - 0x0F
+ *
+ * ** FIXME **
+ *
+ * Reserved area are considered as "mute".
+ * -> min = -79.5 dB
+ */
+static const DECLARE_TLV_DB_SCALE(hp_out_tlv, -7950, 150, 1);
+
+static const struct snd_kcontrol_new da7210_snd_controls[] = {
+
+ SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
+ DA7210_HP_L_VOL, DA7210_HP_R_VOL,
+ 0, 0x3F, 0, hp_out_tlv),
+};
+
+/* Codec private data */
+struct da7210_priv {
+ enum snd_soc_control_type control_type;
+ void *control_data;
+};
+
+/*
+ * Register cache
+ */
+static const u8 da7210_reg[] = {
+ 0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0 - R7 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8 - RF */
+ 0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */
+ 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */
+ 0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */
+ 0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */
+ 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */
+ 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */
+ 0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */
+ 0x00, /* R88 */
+};
+
+/*
+ * Read da7210 register cache
+ */
+static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg)
+{
+ u8 *cache = codec->reg_cache;
+ BUG_ON(reg >= ARRAY_SIZE(da7210_reg));
+ return cache[reg];
+}
+
+/*
+ * Write to the da7210 register space
+ */
+static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value)
+{
+ u8 *cache = codec->reg_cache;
+ u8 data[2];
+
+ BUG_ON(codec->driver->volatile_register);
+
+ data[0] = reg & 0xff;
+ data[1] = value & 0xff;
+
+ if (reg >= codec->driver->reg_cache_size)
+ return -EIO;
+
+ if (2 != codec->hw_write(codec->control_data, data, 2))
+ return -EIO;
+
+ cache[reg] = value;
+ return 0;
+}
+
+/*
+ * Read from the da7210 register space.
+ */
+static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg)
+{
+ if (DA7210_STATUS == reg)
+ return i2c_smbus_read_byte_data(codec->control_data, reg);
+
+ return da7210_read_reg_cache(codec, reg);
+}
+
+static int da7210_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+ struct snd_soc_codec *codec = dai->codec;
+
+ if (is_play) {
+ /* Enable Out */
+ snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10);
+ snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10);
+
+ } else {
+ /* Volume 7 */
+ snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7);
+ snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7);
+
+ /* Enable Mic */
+ snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1);
+ snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1);
+ }
+
+ return 0;
+}
+
+/*
+ * Set PCM DAI word length.
+ */
+static int da7210_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_codec *codec = rtd->codec;
+ u32 dai_cfg1;
+ u32 hpf_reg, hpf_mask, hpf_value;
+ u32 fs, bypass;
+
+ /* set DAI source to Left and Right ADC */
+ da7210_write(codec, DA7210_DAI_SRC_SEL,
+ DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);
+
+ /* Enable DAI */
+ da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);
+
+ dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1);
+
+ switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S16_LE:
+ dai_cfg1 |= DA7210_DAI_WORD_S16_LE;
+ break;
+ case SNDRV_PCM_FORMAT_S24_LE:
+ dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
+
+ hpf_reg = (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) ?
+ DA7210_DAC_HPF : DA7210_ADC_HPF;
+
+ switch (params_rate(params)) {
+ case 8000:
+ fs = DA7210_PLL_FS_8000;
+ hpf_mask = DA7210_VOICE_F0_MASK | DA7210_VOICE_EN;
+ hpf_value = DA7210_VOICE_F0_25 | DA7210_VOICE_EN;
+ bypass = DA7210_PLL_BYP;
+ break;
+ case 11025:
+ fs = DA7210_PLL_FS_11025;
+ hpf_mask = DA7210_VOICE_F0_MASK | DA7210_VOICE_EN;
+ hpf_value = DA7210_VOICE_F0_25 | DA7210_VOICE_EN;
+ bypass = 0;
+ break;
+ case 12000:
+ fs = DA7210_PLL_FS_12000;
+ hpf_mask = DA7210_VOICE_F0_MASK | DA7210_VOICE_EN;
+ hpf_value = DA7210_VOICE_F0_25 | DA7210_VOICE_EN;
+ bypass = DA7210_PLL_BYP;
+ break;
+ case 16000:
+ fs = DA7210_PLL_FS_16000;
+ hpf_mask = DA7210_VOICE_F0_MASK | DA7210_VOICE_EN;
+ hpf_value = DA7210_VOICE_F0_25 | DA7210_VOICE_EN;
+ bypass = DA7210_PLL_BYP;
+ break;
+ case 22050:
+ fs = DA7210_PLL_FS_22050;
+ hpf_mask = DA7210_VOICE_EN;
+ hpf_value = 0;
+ bypass = 0;
+ break;
+ case 32000:
+ fs = DA7210_PLL_FS_32000;
+ hpf_mask = DA7210_VOICE_EN;
+ hpf_value = 0;
+ bypass = DA7210_PLL_BYP;
+ break;
+ case 44100:
+ fs = DA7210_PLL_FS_44100;
+ hpf_mask = DA7210_VOICE_EN;
+ hpf_value = 0;
+ bypass = 0;
+ break;
+ case 48000:
+ fs = DA7210_PLL_FS_48000;
+ hpf_mask = DA7210_VOICE_EN;
+ hpf_value = 0;
+ bypass = DA7210_PLL_BYP;
+ break;
+ case 88200:
+ fs = DA7210_PLL_FS_88200;
+ hpf_mask = DA7210_VOICE_EN;
+ hpf_value = 0;
+ bypass = 0;
+ break;
+ case 96000:
+ fs = DA7210_PLL_FS_96000;
+ hpf_mask = DA7210_VOICE_EN;
+ hpf_value = 0;
+ bypass = DA7210_PLL_BYP;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Disable active mode */
+ snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
+
+ snd_soc_update_bits(codec, hpf_reg, hpf_mask, hpf_value);
+ snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_FS_MASK, fs);
+ snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, bypass);
+
+ /* Enable active mode */
+ snd_soc_update_bits(codec, DA7210_STARTUP1,
+ DA7210_SC_MST_EN, DA7210_SC_MST_EN);
+
+ return 0;
+}
+
+/*
+ * Set DAI mode and Format
+ */
+static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
+{
+ struct snd_soc_codec *codec = codec_dai->codec;
+ u32 dai_cfg1;
+ u32 dai_cfg3;
+
+ dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1);
+ dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3);
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ dai_cfg1 |= DA7210_DAI_MODE_MASTER;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* FIXME
+ *
+ * It support I2S only now
+ */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* FIXME
+ *
+ * It support 64bit data transmission only now
+ */
+ dai_cfg1 |= DA7210_DAI_FLEN_64BIT;
+
+ da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
+ da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3);
+
+ return 0;
+}
+
+#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
+
+/* DAI operations */
+static struct snd_soc_dai_ops da7210_dai_ops = {
+ .startup = da7210_startup,
+ .hw_params = da7210_hw_params,
+ .set_fmt = da7210_set_dai_fmt,
+};
+
+static struct snd_soc_dai_driver da7210_dai = {
+ .name = "da7210-hifi",
+ /* playback capabilities */
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = DA7210_FORMATS,
+ },
+ /* capture capabilities */
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = DA7210_FORMATS,
+ },
+ .ops = &da7210_dai_ops,
+ .symmetric_rates = 1,
+};
+
+static int da7210_probe(struct snd_soc_codec *codec)
+{
+ struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
+
+ dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
+
+ codec->control_data = da7210->control_data;
+ codec->hw_write = (hw_write_t)i2c_master_send;
+
+ /* FIXME
+ *
+ * This driver use fixed value here
+ * And below settings expects MCLK = 12.288MHz
+ *
+ * When you select different MCLK, please check...
+ * DA7210_PLL_DIV1 val
+ * DA7210_PLL_DIV2 val
+ * DA7210_PLL_DIV3 val
+ * DA7210_PLL_DIV3 :: DA7210_MCLK_RANGExxx
+ */
+
+ /*
+ * make sure that DA7210 use bypass mode before start up
+ */
+ da7210_write(codec, DA7210_STARTUP1, 0);
+ da7210_write(codec, DA7210_PLL_DIV3,
+ DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
+
+ /*
+ * ADC settings
+ */
+
+ /* Enable Left & Right MIC PGA and Mic Bias */
+ da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
+ da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
+
+ /* Enable Left and Right input PGA */
+ da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
+ da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);
+
+ /* Enable Left and Right ADC */
+ da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);
+
+ /*
+ * DAC settings
+ */
+
+ /* Enable Left and Right DAC */
+ da7210_write(codec, DA7210_DAC_SEL,
+ DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN |
+ DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN);
+
+ /* Enable Left and Right out PGA */
+ da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
+ da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);
+
+ /* Enable Left and Right HeadPhone PGA */
+ da7210_write(codec, DA7210_HP_CFG,
+ DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN |
+ DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN);
+
+ /* Diable PLL and bypass it */
+ da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
+
+ /*
+ * If 48kHz sound came, it use bypass mode,
+ * and when it is 44.1kHz, it use PLL.
+ *
+ * This time, this driver sets PLL always ON
+ * and controls bypass/PLL mode by switching
+ * DA7210_PLL_DIV3 :: DA7210_PLL_BYP bit.
+ * see da7210_hw_params
+ */
+ da7210_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
+ da7210_write(codec, DA7210_PLL_DIV2, 0x99);
+ da7210_write(codec, DA7210_PLL_DIV3, 0x0A |
+ DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
+ snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);
+
+ /* As suggested by Dialog */
+ da7210_write(codec, DA7210_A_HID_UNLOCK, 0x8B); /* unlock */
+ da7210_write(codec, DA7210_A_TEST_UNLOCK, 0xB4);
+ da7210_write(codec, DA7210_A_PLL1, 0x01);
+ da7210_write(codec, DA7210_A_CP_MODE, 0x7C);
+ da7210_write(codec, DA7210_A_HID_UNLOCK, 0x00); /* re-lock */
+ da7210_write(codec, DA7210_A_TEST_UNLOCK, 0x00);
+
+ /* Activate all enabled subsystem */
+ da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
+
+ snd_soc_add_controls(codec, da7210_snd_controls,
+ ARRAY_SIZE(da7210_snd_controls));
+
+ dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
+
+ return 0;
+}
+
+static struct snd_soc_codec_driver soc_codec_dev_da7210 = {
+ .probe = da7210_probe,
+ .read = da7210_read,
+ .write = da7210_write,
+ .reg_cache_size = ARRAY_SIZE(da7210_reg),
+ .reg_word_size = sizeof(u8),
+ .reg_cache_default = da7210_reg,
+};
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct da7210_priv *da7210;
+ int ret;
+
+ da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL);
+ if (!da7210)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, da7210);
+ da7210->control_data = i2c;
+ da7210->control_type = SND_SOC_I2C;
+
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_da7210, &da7210_dai, 1);
+ if (ret < 0)
+ kfree(da7210);
+
+ return ret;
+}
+
+static int __devexit da7210_i2c_remove(struct i2c_client *client)
+{
+ snd_soc_unregister_codec(&client->dev);
+ kfree(i2c_get_clientdata(client));
+ return 0;
+}
+
+static const struct i2c_device_id da7210_i2c_id[] = {
+ { "da7210", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);
+
+/* I2C codec control layer */
+static struct i2c_driver da7210_i2c_driver = {
+ .driver = {
+ .name = "da7210-codec",
+ .owner = THIS_MODULE,
+ },
+ .probe = da7210_i2c_probe,
+ .remove = __devexit_p(da7210_i2c_remove),
+ .id_table = da7210_i2c_id,
+};
+#endif
+
+static int __init da7210_modinit(void)
+{
+ int ret = 0;
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ ret = i2c_add_driver(&da7210_i2c_driver);
+#endif
+ return ret;
+}
+module_init(da7210_modinit);
+
+static void __exit da7210_exit(void)
+{
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+ i2c_del_driver(&da7210_i2c_driver);
+#endif
+}
+module_exit(da7210_exit);
+
+MODULE_DESCRIPTION("ASoC DA7210 driver");
+MODULE_AUTHOR("David Chen, Kuninori Morimoto");
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 02:43:58 +0000