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Diffstat (limited to 'sound/soc/codecs/wm8753.c')
-rw-r--r--sound/soc/codecs/wm8753.c407
1 files changed, 147 insertions, 260 deletions
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index b59f349c5218..976e408b3616 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -57,7 +57,7 @@ module_param(caps_charge, int, 0);
MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
- unsigned int mode);
+ struct snd_soc_dai *dai, unsigned int hifi);
/*
* wm8753 register cache
@@ -85,10 +85,12 @@ static const u16 wm8753_reg[] = {
/* codec private data */
struct wm8753_priv {
+ enum snd_soc_control_type control_type;
+ void *control_data;
unsigned int sysclk;
unsigned int pcmclk;
- struct snd_soc_codec codec;
u16 reg_cache[ARRAY_SIZE(wm8753_reg)];
+ int dai_func;
};
/*
@@ -228,6 +230,7 @@ static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
+ struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
if (((mode & 0xc) >> 2) == ucontrol->value.integer.value[0])
return 0;
@@ -235,8 +238,7 @@ static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
mode &= 0xfff3;
mode |= (ucontrol->value.integer.value[0] << 2);
- wm8753_write(codec, WM8753_IOCTL, mode);
- wm8753_set_dai_mode(codec, ucontrol->value.integer.value[0]);
+ wm8753->dai_func = ucontrol->value.integer.value[0];
return 1;
}
@@ -904,6 +906,13 @@ static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai *codec_dai,
return 0;
}
+static int wm8753_pcm_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ wm8753_set_dai_mode(dai->codec, dai, 0);
+ return 0;
+}
+
/*
* Set PCM DAI bit size and sample rate.
*/
@@ -912,8 +921,7 @@ static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct snd_soc_codec *codec = rtd->codec;
struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3;
u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f;
@@ -1138,6 +1146,13 @@ static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
return 0;
}
+static int wm8753_i2s_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ wm8753_set_dai_mode(dai->codec, dai, 1);
+ return 0;
+}
+
/*
* Set PCM DAI bit size and sample rate.
*/
@@ -1146,8 +1161,7 @@ static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_codec *codec = socdev->card->codec;
+ struct snd_soc_codec *codec = rtd->codec;
struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0;
u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3;
@@ -1240,12 +1254,12 @@ static int wm8753_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7;
+ struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
/* the digital mute covers the HiFi and Voice DAC's on the WM8753.
* make sure we check if they are not both active when we mute */
- if (mute && dai->id == 1) {
- if (!wm8753_dai[WM8753_DAI_VOICE].playback.active ||
- !wm8753_dai[WM8753_DAI_HIFI].playback.active)
+ if (mute && wm8753->dai_func == 1) {
+ if (!codec->active)
wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
} else {
if (mute)
@@ -1303,6 +1317,7 @@ static int wm8753_set_bias_level(struct snd_soc_codec *codec,
* 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
*/
static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode1 = {
+ .startup = wm8753_i2s_startup,
.hw_params = wm8753_i2s_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode1h_set_dai_fmt,
@@ -1312,6 +1327,7 @@ static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode1 = {
};
static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode1 = {
+ .startup = wm8753_pcm_startup,
.hw_params = wm8753_pcm_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode1v_set_dai_fmt,
@@ -1321,6 +1337,7 @@ static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode1 = {
};
static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode2 = {
+ .startup = wm8753_pcm_startup,
.hw_params = wm8753_pcm_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode2_set_dai_fmt,
@@ -1330,6 +1347,7 @@ static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode2 = {
};
static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode3 = {
+ .startup = wm8753_i2s_startup,
.hw_params = wm8753_i2s_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode3_4_set_dai_fmt,
@@ -1339,6 +1357,7 @@ static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode3 = {
};
static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode4 = {
+ .startup = wm8753_i2s_startup,
.hw_params = wm8753_i2s_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode3_4_set_dai_fmt,
@@ -1347,10 +1366,9 @@ static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode4 = {
.set_sysclk = wm8753_set_dai_sysclk,
};
-static const struct snd_soc_dai wm8753_all_dai[] = {
+static struct snd_soc_dai_driver wm8753_all_dai[] = {
/* DAI HiFi mode 1 */
-{ .name = "WM8753 HiFi",
- .id = 1,
+{ .name = "wm8753-hifi",
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 1,
@@ -1366,8 +1384,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.ops = &wm8753_dai_ops_hifi_mode1,
},
/* DAI Voice mode 1 */
-{ .name = "WM8753 Voice",
- .id = 1,
+{ .name = "wm8753-voice",
.playback = {
.stream_name = "Voice Playback",
.channels_min = 1,
@@ -1383,12 +1400,10 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.ops = &wm8753_dai_ops_voice_mode1,
},
/* DAI HiFi mode 2 - dummy */
-{ .name = "WM8753 HiFi",
- .id = 2,
+{ .name = "wm8753-hifi",
},
/* DAI Voice mode 2 */
-{ .name = "WM8753 Voice",
- .id = 2,
+{ .name = "wm8753-voice",
.playback = {
.stream_name = "Voice Playback",
.channels_min = 1,
@@ -1404,8 +1419,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.ops = &wm8753_dai_ops_voice_mode2,
},
/* DAI HiFi mode 3 */
-{ .name = "WM8753 HiFi",
- .id = 3,
+{ .name = "wm8753-hifi",
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 1,
@@ -1421,12 +1435,10 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.ops = &wm8753_dai_ops_hifi_mode3,
},
/* DAI Voice mode 3 - dummy */
-{ .name = "WM8753 Voice",
- .id = 3,
+{ .name = "wm8753-voice",
},
/* DAI HiFi mode 4 */
-{ .name = "WM8753 HiFi",
- .id = 4,
+{ .name = "wm8753-hifi",
.playback = {
.stream_name = "HiFi Playback",
.channels_min = 1,
@@ -1442,58 +1454,31 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.ops = &wm8753_dai_ops_hifi_mode4,
},
/* DAI Voice mode 4 - dummy */
-{ .name = "WM8753 Voice",
- .id = 4,
+{ .name = "wm8753-voice",
},
};
-struct snd_soc_dai wm8753_dai[] = {
+static struct snd_soc_dai_driver wm8753_dai[] = {
{
- .name = "WM8753 DAI 0",
+ .name = "wm8753-aif0",
},
{
- .name = "WM8753 DAI 1",
+ .name = "wm8753-aif1",
},
};
-EXPORT_SYMBOL_GPL(wm8753_dai);
-static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode)
+static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
+ struct snd_soc_dai *dai, unsigned int hifi)
{
- if (mode < 4) {
- int playback_active, capture_active, codec_active, pop_wait;
- void *private_data;
- struct list_head list;
-
- playback_active = wm8753_dai[0].playback.active;
- capture_active = wm8753_dai[0].capture.active;
- codec_active = wm8753_dai[0].active;
- private_data = wm8753_dai[0].private_data;
- pop_wait = wm8753_dai[0].pop_wait;
- list = wm8753_dai[0].list;
- wm8753_dai[0] = wm8753_all_dai[mode << 1];
- wm8753_dai[0].playback.active = playback_active;
- wm8753_dai[0].capture.active = capture_active;
- wm8753_dai[0].active = codec_active;
- wm8753_dai[0].private_data = private_data;
- wm8753_dai[0].pop_wait = pop_wait;
- wm8753_dai[0].list = list;
-
- playback_active = wm8753_dai[1].playback.active;
- capture_active = wm8753_dai[1].capture.active;
- codec_active = wm8753_dai[1].active;
- private_data = wm8753_dai[1].private_data;
- pop_wait = wm8753_dai[1].pop_wait;
- list = wm8753_dai[1].list;
- wm8753_dai[1] = wm8753_all_dai[(mode << 1) + 1];
- wm8753_dai[1].playback.active = playback_active;
- wm8753_dai[1].capture.active = capture_active;
- wm8753_dai[1].active = codec_active;
- wm8753_dai[1].private_data = private_data;
- wm8753_dai[1].pop_wait = pop_wait;
- wm8753_dai[1].list = list;
+ struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
+
+ if (wm8753->dai_func < 4) {
+ if (hifi)
+ dai->driver = &wm8753_all_dai[wm8753->dai_func << 1];
+ else
+ dai->driver = &wm8753_all_dai[(wm8753->dai_func << 1) + 1];
}
- wm8753_dai[0].codec = codec;
- wm8753_dai[1].codec = codec;
+ wm8753_write(codec, WM8753_IOCTL, wm8753->dai_func);
}
static void wm8753_work(struct work_struct *work)
@@ -1503,19 +1488,14 @@ static void wm8753_work(struct work_struct *work)
wm8753_set_bias_level(codec, codec->bias_level);
}
-static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
+static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
-
wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
-static int wm8753_resume(struct platform_device *pdev)
+static int wm8753_resume(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
int i;
u8 data[2];
u16 *cache = codec->reg_cache;
@@ -1547,41 +1527,6 @@ static int wm8753_resume(struct platform_device *pdev)
return 0;
}
-static struct snd_soc_codec *wm8753_codec;
-
-static int wm8753_probe(struct platform_device *pdev)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec;
- int ret = 0;
-
- if (!wm8753_codec) {
- dev_err(&pdev->dev, "WM8753 codec not yet registered\n");
- return -EINVAL;
- }
-
- socdev->card->codec = wm8753_codec;
- codec = wm8753_codec;
-
- wm8753_set_dai_mode(codec, 0);
-
- /* register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- printk(KERN_ERR "wm8753: failed to create pcms\n");
- goto pcm_err;
- }
-
- snd_soc_add_controls(codec, wm8753_snd_controls,
- ARRAY_SIZE(wm8753_snd_controls));
- wm8753_add_widgets(codec);
-
- return 0;
-
-pcm_err:
- return ret;
-}
-
/*
* This function forces any delayed work to be queued and run.
*/
@@ -1601,62 +1546,30 @@ static int run_delayed_work(struct delayed_work *dwork)
return ret;
}
-/* power down chip */
-static int wm8753_remove(struct platform_device *pdev)
+static int wm8753_probe(struct snd_soc_codec *codec)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-
- return 0;
-}
-
-struct snd_soc_codec_device soc_codec_dev_wm8753 = {
- .probe = wm8753_probe,
- .remove = wm8753_remove,
- .suspend = wm8753_suspend,
- .resume = wm8753_resume,
-};
-EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753);
+ struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
+ int ret = 0, reg;
-static int wm8753_register(struct wm8753_priv *wm8753)
-{
- int ret, i;
- struct snd_soc_codec *codec = &wm8753->codec;
- u16 reg;
+ codec->bias_level = SND_SOC_BIAS_OFF,
+ codec->control_data = wm8753->control_data;
+ INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
- if (wm8753_codec) {
- dev_err(codec->dev, "Multiple WM8753 devices not supported\n");
- ret = -EINVAL;
- goto err;
+ ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type);
+ if (ret < 0) {
+ dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+ return ret;
}
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- codec->name = "WM8753";
- codec->owner = THIS_MODULE;
- codec->read = wm8753_read_reg_cache;
- codec->write = wm8753_write;
- codec->bias_level = SND_SOC_BIAS_STANDBY;
- codec->set_bias_level = wm8753_set_bias_level;
- codec->dai = wm8753_dai;
- codec->num_dai = 2;
- codec->reg_cache_size = ARRAY_SIZE(wm8753->reg_cache) + 1;
- codec->reg_cache = &wm8753->reg_cache;
- snd_soc_codec_set_drvdata(codec, wm8753);
-
- memcpy(codec->reg_cache, wm8753_reg, sizeof(wm8753->reg_cache));
- INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
-
ret = wm8753_reset(codec);
if (ret < 0) {
- dev_err(codec->dev, "Failed to issue reset\n");
- goto err;
+ dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
+ return ret;
}
+ wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ wm8753->dai_func = 0;
+
/* charge output caps */
wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
schedule_delayed_work(&codec->delayed_work,
@@ -1684,165 +1597,139 @@ static int wm8753_register(struct wm8753_priv *wm8753)
reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
- wm8753_codec = codec;
-
- for (i = 0; i < ARRAY_SIZE(wm8753_dai); i++)
- wm8753_dai[i].dev = codec->dev;
-
- ret = snd_soc_register_codec(codec);
- if (ret != 0) {
- dev_err(codec->dev, "Failed to register codec: %d\n", ret);
- goto err;
- }
-
- ret = snd_soc_register_dais(&wm8753_dai[0], ARRAY_SIZE(wm8753_dai));
- if (ret != 0) {
- dev_err(codec->dev, "Failed to register DAIs: %d\n", ret);
- goto err_codec;
- }
+ snd_soc_add_controls(codec, wm8753_snd_controls,
+ ARRAY_SIZE(wm8753_snd_controls));
+ wm8753_add_widgets(codec);
return 0;
-err_codec:
run_delayed_work(&codec->delayed_work);
- snd_soc_unregister_codec(codec);
-err:
- kfree(wm8753);
return ret;
}
-static void wm8753_unregister(struct wm8753_priv *wm8753)
+/* power down chip */
+static int wm8753_remove(struct snd_soc_codec *codec)
{
- wm8753_set_bias_level(&wm8753->codec, SND_SOC_BIAS_OFF);
- run_delayed_work(&wm8753->codec.delayed_work);
- snd_soc_unregister_dais(&wm8753_dai[0], ARRAY_SIZE(wm8753_dai));
- snd_soc_unregister_codec(&wm8753->codec);
- kfree(wm8753);
- wm8753_codec = NULL;
+ run_delayed_work(&codec->delayed_work);
+ wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
+
+ return 0;
}
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
+ .probe = wm8753_probe,
+ .remove = wm8753_remove,
+ .suspend = wm8753_suspend,
+ .resume = wm8753_resume,
+ .set_bias_level = wm8753_set_bias_level,
+ .reg_cache_size = sizeof(wm8753_reg),
+ .reg_word_size = sizeof(u16),
+ .reg_cache_default = wm8753_reg,
+};
-static int wm8753_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+#if defined(CONFIG_SPI_MASTER)
+static int __devinit wm8753_spi_probe(struct spi_device *spi)
{
- struct snd_soc_codec *codec;
struct wm8753_priv *wm8753;
+ int ret;
wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
if (wm8753 == NULL)
return -ENOMEM;
- codec = &wm8753->codec;
- codec->hw_write = (hw_write_t)i2c_master_send;
- codec->control_data = i2c;
- i2c_set_clientdata(i2c, wm8753);
-
- codec->dev = &i2c->dev;
+ wm8753->control_data = spi;
+ wm8753->control_type = SND_SOC_SPI;
+ spi_set_drvdata(spi, wm8753);
- return wm8753_register(wm8753);
+ ret = snd_soc_register_codec(&spi->dev,
+ &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
+ if (ret < 0)
+ kfree(wm8753);
+ return ret;
}
-static int wm8753_i2c_remove(struct i2c_client *client)
+static int __devexit wm8753_spi_remove(struct spi_device *spi)
{
- struct wm8753_priv *wm8753 = i2c_get_clientdata(client);
- wm8753_unregister(wm8753);
- return 0;
+ snd_soc_unregister_codec(&spi->dev);
+ kfree(spi_get_drvdata(spi));
+ return 0;
}
-static const struct i2c_device_id wm8753_i2c_id[] = {
- { "wm8753", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
-
-static struct i2c_driver wm8753_i2c_driver = {
+static struct spi_driver wm8753_spi_driver = {
.driver = {
- .name = "wm8753",
- .owner = THIS_MODULE,
+ .name = "wm8753-codec",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
},
- .probe = wm8753_i2c_probe,
- .remove = wm8753_i2c_remove,
- .id_table = wm8753_i2c_id,
+ .probe = wm8753_spi_probe,
+ .remove = __devexit_p(wm8753_spi_remove),
};
-#endif
-
-#if defined(CONFIG_SPI_MASTER)
-static int wm8753_spi_write(struct spi_device *spi, const char *data, int len)
-{
- struct spi_transfer t;
- struct spi_message m;
- u8 msg[2];
-
- if (len <= 0)
- return 0;
-
- msg[0] = data[0];
- msg[1] = data[1];
+#endif /* CONFIG_SPI_MASTER */
- spi_message_init(&m);
- memset(&t, 0, (sizeof t));
-
- t.tx_buf = &msg[0];
- t.len = len;
-
- spi_message_add_tail(&t, &m);
- spi_sync(spi, &m);
-
- return len;
-}
-
-static int __devinit wm8753_spi_probe(struct spi_device *spi)
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
- struct snd_soc_codec *codec;
struct wm8753_priv *wm8753;
+ int ret;
wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
if (wm8753 == NULL)
return -ENOMEM;
- codec = &wm8753->codec;
- codec->control_data = spi;
- codec->hw_write = (hw_write_t)wm8753_spi_write;
- codec->dev = &spi->dev;
-
- dev_set_drvdata(&spi->dev, wm8753);
+ i2c_set_clientdata(i2c, wm8753);
+ wm8753->control_data = i2c;
+ wm8753->control_type = SND_SOC_I2C;
- return wm8753_register(wm8753);
+ ret = snd_soc_register_codec(&i2c->dev,
+ &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
+ if (ret < 0)
+ kfree(wm8753);
+ return ret;
}
-static int __devexit wm8753_spi_remove(struct spi_device *spi)
+static __devexit int wm8753_i2c_remove(struct i2c_client *client)
{
- struct wm8753_priv *wm8753 = dev_get_drvdata(&spi->dev);
- wm8753_unregister(wm8753);
+ snd_soc_unregister_codec(&client->dev);
+ kfree(i2c_get_clientdata(client));
return 0;
}
-static struct spi_driver wm8753_spi_driver = {
+static const struct i2c_device_id wm8753_i2c_id[] = {
+ { "wm8753", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
+
+static struct i2c_driver wm8753_i2c_driver = {
.driver = {
- .name = "wm8753",
- .bus = &spi_bus_type,
- .owner = THIS_MODULE,
+ .name = "wm8753-codec",
+ .owner = THIS_MODULE,
},
- .probe = wm8753_spi_probe,
- .remove = __devexit_p(wm8753_spi_remove),
+ .probe = wm8753_i2c_probe,
+ .remove = __devexit_p(wm8753_i2c_remove),
+ .id_table = wm8753_i2c_id,
};
#endif
static int __init wm8753_modinit(void)
{
- int ret;
+ int ret = 0;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
ret = i2c_add_driver(&wm8753_i2c_driver);
- if (ret != 0)
- pr_err("Failed to register WM8753 I2C driver: %d\n", ret);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
+ ret);
+ }
#endif
#if defined(CONFIG_SPI_MASTER)
ret = spi_register_driver(&wm8753_spi_driver);
- if (ret != 0)
- pr_err("Failed to register WM8753 SPI driver: %d\n", ret);
+ if (ret != 0) {
+ printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
+ ret);
+ }
#endif
- return 0;
+ return ret;
}
module_init(wm8753_modinit);