summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs')
-rw-r--r--sound/soc/codecs/wm8900.c159
-rw-r--r--sound/soc/codecs/wm8900.h7
2 files changed, 81 insertions, 85 deletions
diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index ebf58fba1be..6767de10ded 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -138,6 +138,10 @@
struct snd_soc_codec_device soc_codec_dev_wm8900;
struct wm8900_priv {
+ struct snd_soc_codec codec;
+
+ u16 reg_cache[WM8900_MAXREG];
+
u32 fll_in; /* FLL input frequency */
u32 fll_out; /* FLL output frequency */
};
@@ -1282,16 +1286,28 @@ static int wm8900_resume(struct platform_device *pdev)
return 0;
}
-/*
- * initialise the WM8900 driver
- * register the mixer and dsp interfaces with the kernel
- */
-static int wm8900_init(struct snd_soc_device *socdev)
+static struct snd_soc_codec *wm8900_codec;
+
+static int wm8900_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
- struct snd_soc_codec *codec = socdev->codec;
- int ret = 0;
+ struct wm8900_priv *wm8900;
+ struct snd_soc_codec *codec;
unsigned int reg;
- struct i2c_client *i2c_client = socdev->codec->control_data;
+ int ret;
+
+ wm8900 = kzalloc(sizeof(struct wm8900_priv), GFP_KERNEL);
+ if (wm8900 == NULL)
+ return -ENOMEM;
+
+ codec = &wm8900->codec;
+ codec->private_data = wm8900;
+ codec->reg_cache = &wm8900->reg_cache[0];
+ codec->reg_cache_size = WM8900_MAXREG;
+
+ mutex_init(&codec->mutex);
+ INIT_LIST_HEAD(&codec->dapm_widgets);
+ INIT_LIST_HEAD(&codec->dapm_paths);
codec->name = "WM8900";
codec->owner = THIS_MODULE;
@@ -1299,33 +1315,28 @@ static int wm8900_init(struct snd_soc_device *socdev)
codec->write = wm8900_write;
codec->dai = &wm8900_dai;
codec->num_dai = 1;
- codec->reg_cache_size = WM8900_MAXREG;
- codec->reg_cache = kmemdup(wm8900_reg_defaults,
- sizeof(wm8900_reg_defaults), GFP_KERNEL);
-
- if (codec->reg_cache == NULL)
- return -ENOMEM;
+ codec->hw_write = (hw_write_t)i2c_master_send;
+ codec->control_data = i2c;
+ codec->set_bias_level = wm8900_set_bias_level;
+ codec->dev = &i2c->dev;
reg = wm8900_read(codec, WM8900_REG_ID);
if (reg != 0x8900) {
- dev_err(&i2c_client->dev, "Device is not a WM8900 - ID %x\n",
- reg);
- return -ENODEV;
- }
-
- codec->private_data = kzalloc(sizeof(struct wm8900_priv), GFP_KERNEL);
- if (codec->private_data == NULL) {
- ret = -ENOMEM;
- goto priv_err;
+ dev_err(&i2c->dev, "Device is not a WM8900 - ID %x\n", reg);
+ ret = -ENODEV;
+ goto err;
}
/* Read back from the chip */
reg = wm8900_chip_read(codec, WM8900_REG_POWER1);
reg = (reg >> 12) & 0xf;
- dev_info(&i2c_client->dev, "WM8900 revision %d\n", reg);
+ dev_info(&i2c->dev, "WM8900 revision %d\n", reg);
wm8900_reset(codec);
+ /* Turn the chip on */
+ wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+
/* Latch the volume update bits */
wm8900_write(codec, WM8900_REG_LINVOL,
wm8900_read(codec, WM8900_REG_LINVOL) | 0x100);
@@ -1351,52 +1362,43 @@ static int wm8900_init(struct snd_soc_device *socdev)
/* Set the DAC and mixer output bias */
wm8900_write(codec, WM8900_REG_OUTBIASCTL, 0x81);
- /* Register pcms */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- dev_err(&i2c_client->dev, "Failed to register new PCMs\n");
- goto pcm_err;
- }
+ wm8900_dai.dev = &i2c->dev;
- /* Turn the chip on */
- codec->bias_level = SND_SOC_BIAS_OFF;
- wm8900_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+ wm8900_codec = codec;
- wm8900_add_controls(codec);
- wm8900_add_widgets(codec);
+ ret = snd_soc_register_codec(codec);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to register codec: %d\n", ret);
+ goto err;
+ }
- ret = snd_soc_init_card(socdev);
- if (ret < 0) {
- dev_err(&i2c_client->dev, "Failed to register card\n");
- goto card_err;
+ ret = snd_soc_register_dai(&wm8900_dai);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to register DAI: %d\n", ret);
+ goto err_codec;
}
- return ret;
-card_err:
- snd_soc_free_pcms(socdev);
- snd_soc_dapm_free(socdev);
-pcm_err:
- kfree(codec->reg_cache);
-priv_err:
- kfree(codec->private_data);
return ret;
-}
-
-static struct i2c_client *wm8900_client;
-static int wm8900_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
-{
- wm8900_client = i2c;
- wm8900_dai.dev = &i2c->dev;
- return snd_soc_register_dai(&wm8900_dai);
+err_codec:
+ snd_soc_unregister_codec(codec);
+err:
+ kfree(wm8900);
+ wm8900_codec = NULL;
+ return ret;
}
static int wm8900_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_dai(&wm8900_dai);
+ snd_soc_unregister_codec(wm8900_codec);
+
+ wm8900_set_bias_level(wm8900_codec, SND_SOC_BIAS_OFF);
+
wm8900_dai.dev = NULL;
- wm8900_client = NULL;
+ kfree(wm8900_codec->private_data);
+ wm8900_codec = NULL;
+
return 0;
}
@@ -1408,7 +1410,7 @@ MODULE_DEVICE_TABLE(i2c, wm8900_i2c_id);
static struct i2c_driver wm8900_i2c_driver = {
.driver = {
- .name = "WM8900 I2C codec",
+ .name = "WM8900",
.owner = THIS_MODULE,
},
.probe = wm8900_i2c_probe,
@@ -1422,30 +1424,36 @@ static int wm8900_probe(struct platform_device *pdev)
struct snd_soc_codec *codec;
int ret = 0;
- if (!wm8900_client) {
+ if (!wm8900_codec) {
dev_err(&pdev->dev, "I2C client not yet instantiated\n");
return -ENODEV;
}
- codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
- if (codec == NULL)
- return -ENOMEM;
-
- mutex_init(&codec->mutex);
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
+ codec = wm8900_codec;
socdev->codec = codec;
- codec->set_bias_level = wm8900_set_bias_level;
+ /* Register pcms */
+ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to register new PCMs\n");
+ goto pcm_err;
+ }
- codec->hw_write = (hw_write_t)i2c_master_send;
- codec->control_data = wm8900_client;
+ wm8900_add_controls(codec);
+ wm8900_add_widgets(codec);
+
+ ret = snd_soc_init_card(socdev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to register card\n");
+ goto card_err;
+ }
- ret = wm8900_init(socdev);
- if (ret != 0)
- kfree(codec);
+ return ret;
+card_err:
+ snd_soc_free_pcms(socdev);
+ snd_soc_dapm_free(socdev);
+pcm_err:
return ret;
}
@@ -1453,14 +1461,9 @@ static int wm8900_probe(struct platform_device *pdev)
static int wm8900_remove(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->codec;
-
- if (codec->control_data)
- wm8900_set_bias_level(codec, SND_SOC_BIAS_OFF);
snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
- kfree(codec);
return 0;
}
diff --git a/sound/soc/codecs/wm8900.h b/sound/soc/codecs/wm8900.h
index 2249a446ad3..fd15007d10c 100644
--- a/sound/soc/codecs/wm8900.h
+++ b/sound/soc/codecs/wm8900.h
@@ -52,13 +52,6 @@
#define WM8900_DAC_CLKDIV_5_5 0x14
#define WM8900_DAC_CLKDIV_6 0x18
-#define WM8900_
-
-struct wm8900_setup_data {
- int i2c_bus;
- unsigned short i2c_address;
-};
-
extern struct snd_soc_dai wm8900_dai;
extern struct snd_soc_codec_device soc_codec_dev_wm8900;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-28 02:47:56 +0000