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Diffstat (limited to 'sound/soc/codecs/wm8971.c')
-rw-r--r--sound/soc/codecs/wm8971.c222
1 files changed, 104 insertions, 118 deletions
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index 63f6dbf5d07..09b7b420022 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -19,13 +19,12 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
-#include <linux/platform_device.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
-#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include "wm8971.h"
@@ -36,7 +35,6 @@ static struct workqueue_struct *wm8971_workq = NULL;
/* codec private data */
struct wm8971_priv {
- enum snd_soc_control_type control_type;
unsigned int sysclk;
};
@@ -45,18 +43,50 @@ struct wm8971_priv {
* We can't read the WM8971 register space when we
* are using 2 wire for device control, so we cache them instead.
*/
-static const u16 wm8971_reg[] = {
- 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */
- 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */
- 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */
- 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */
- 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */
- 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */
- 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */
- 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */
- 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */
- 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */
- 0x0079, 0x0079, 0x0079, /* 40 */
+static const struct reg_default wm8971_reg_defaults[] = {
+ { 0, 0x0097 },
+ { 1, 0x0097 },
+ { 2, 0x0079 },
+ { 3, 0x0079 },
+ { 4, 0x0000 },
+ { 5, 0x0008 },
+ { 6, 0x0000 },
+ { 7, 0x000a },
+ { 8, 0x0000 },
+ { 9, 0x0000 },
+ { 10, 0x00ff },
+ { 11, 0x00ff },
+ { 12, 0x000f },
+ { 13, 0x000f },
+ { 14, 0x0000 },
+ { 15, 0x0000 },
+ { 16, 0x0000 },
+ { 17, 0x007b },
+ { 18, 0x0000 },
+ { 19, 0x0032 },
+ { 20, 0x0000 },
+ { 21, 0x00c3 },
+ { 22, 0x00c3 },
+ { 23, 0x00c0 },
+ { 24, 0x0000 },
+ { 25, 0x0000 },
+ { 26, 0x0000 },
+ { 27, 0x0000 },
+ { 28, 0x0000 },
+ { 29, 0x0000 },
+ { 30, 0x0000 },
+ { 31, 0x0000 },
+ { 32, 0x0000 },
+ { 33, 0x0000 },
+ { 34, 0x0050 },
+ { 35, 0x0050 },
+ { 36, 0x0050 },
+ { 37, 0x0050 },
+ { 38, 0x0050 },
+ { 39, 0x0050 },
+ { 40, 0x0079 },
+ { 41, 0x0079 },
+ { 42, 0x0079 },
};
#define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0)
@@ -225,7 +255,7 @@ static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = {
SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8971_PWR2, 8, 0),
SND_SOC_DAPM_PGA("Mono Out 1", WM8971_PWR2, 2, 0, NULL, 0),
- SND_SOC_DAPM_MICBIAS("Mic Bias", WM8971_PWR1, 1, 0),
+ SND_SOC_DAPM_SUPPLY("Mic Bias", WM8971_PWR1, 1, 0, NULL, 0),
SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8971_PWR1, 2, 0),
SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8971_PWR1, 3, 0),
@@ -254,7 +284,7 @@ static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("MIC"),
};
-static const struct snd_soc_dapm_route audio_map[] = {
+static const struct snd_soc_dapm_route wm8971_dapm_routes[] = {
/* left mixer */
{"Left Mixer", "Playback Switch", "Left DAC"},
{"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
@@ -331,16 +361,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
{"Right ADC", NULL, "Right ADC Mux"},
};
-static int wm8971_add_widgets(struct snd_soc_codec *codec)
-{
- snd_soc_dapm_new_controls(codec, wm8971_dapm_widgets,
- ARRAY_SIZE(wm8971_dapm_widgets));
-
- snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
-
- return 0;
-}
-
struct _coeff_div {
u32 mclk;
u32 rate;
@@ -490,8 +510,7 @@ static int wm8971_pcm_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;
+ struct snd_soc_codec *codec = dai->codec;
struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3;
u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0;
@@ -546,6 +565,9 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
+ snd_soc_cache_sync(codec);
+
/* mute dac and set vmid to 500k, enable VREF */
snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140);
break;
@@ -553,7 +575,7 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec,
snd_soc_write(codec, WM8971_PWR1, 0x0001);
break;
}
- codec->bias_level = level;
+ codec->dapm.bias_level = level;
return 0;
}
@@ -564,7 +586,7 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec,
#define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
-static struct snd_soc_dai_ops wm8971_dai_ops = {
+static const struct snd_soc_dai_ops wm8971_dai_ops = {
.hw_params = wm8971_pcm_hw_params,
.digital_mute = wm8971_mute,
.set_fmt = wm8971_set_dai_fmt,
@@ -590,12 +612,14 @@ static struct snd_soc_dai_driver wm8971_dai = {
static void wm8971_work(struct work_struct *work)
{
- struct snd_soc_codec *codec =
- container_of(work, struct snd_soc_codec, delayed_work.work);
- wm8971_set_bias_level(codec, codec->bias_level);
+ struct snd_soc_dapm_context *dapm =
+ container_of(work, struct snd_soc_dapm_context,
+ delayed_work.work);
+ struct snd_soc_codec *codec = dapm->codec;
+ wm8971_set_bias_level(codec, codec->dapm.bias_level);
}
-static int wm8971_suspend(struct snd_soc_codec *codec, pm_message_t state)
+static int wm8971_suspend(struct snd_soc_codec *codec)
{
wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
@@ -603,28 +627,16 @@ static int wm8971_suspend(struct snd_soc_codec *codec, pm_message_t state)
static int wm8971_resume(struct snd_soc_codec *codec)
{
- int i;
- u8 data[2];
- u16 *cache = codec->reg_cache;
u16 reg;
- /* Sync reg_cache with the hardware */
- for (i = 0; i < ARRAY_SIZE(wm8971_reg); i++) {
- if (i + 1 == WM8971_RESET)
- continue;
- data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
- data[1] = cache[i] & 0x00ff;
- codec->hw_write(codec->control_data, data, 2);
- }
-
wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
/* charge wm8971 caps */
- if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
+ if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
- codec->bias_level = SND_SOC_BIAS_ON;
- queue_delayed_work(wm8971_workq, &codec->delayed_work,
+ codec->dapm.bias_level = SND_SOC_BIAS_ON;
+ queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work,
msecs_to_jiffies(1000));
}
@@ -633,17 +645,10 @@ static int wm8971_resume(struct snd_soc_codec *codec)
static int wm8971_probe(struct snd_soc_codec *codec)
{
- struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
int ret = 0;
u16 reg;
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8971->control_type);
- if (ret < 0) {
- printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret);
- return ret;
- }
-
- INIT_DELAYED_WORK(&codec->delayed_work, wm8971_work);
+ INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work);
wm8971_workq = create_workqueue("wm8971");
if (wm8971_workq == NULL)
return -ENOMEM;
@@ -653,34 +658,19 @@ static int wm8971_probe(struct snd_soc_codec *codec)
/* charge output caps - set vmid to 5k for quick power up */
reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
- codec->bias_level = SND_SOC_BIAS_STANDBY;
- queue_delayed_work(wm8971_workq, &codec->delayed_work,
+ codec->dapm.bias_level = SND_SOC_BIAS_STANDBY;
+ queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work,
msecs_to_jiffies(1000));
/* set the update bits */
- reg = snd_soc_read(codec, WM8971_LDAC);
- snd_soc_write(codec, WM8971_LDAC, reg | 0x0100);
- reg = snd_soc_read(codec, WM8971_RDAC);
- snd_soc_write(codec, WM8971_RDAC, reg | 0x0100);
-
- reg = snd_soc_read(codec, WM8971_LOUT1V);
- snd_soc_write(codec, WM8971_LOUT1V, reg | 0x0100);
- reg = snd_soc_read(codec, WM8971_ROUT1V);
- snd_soc_write(codec, WM8971_ROUT1V, reg | 0x0100);
-
- reg = snd_soc_read(codec, WM8971_LOUT2V);
- snd_soc_write(codec, WM8971_LOUT2V, reg | 0x0100);
- reg = snd_soc_read(codec, WM8971_ROUT2V);
- snd_soc_write(codec, WM8971_ROUT2V, reg | 0x0100);
-
- reg = snd_soc_read(codec, WM8971_LINVOL);
- snd_soc_write(codec, WM8971_LINVOL, reg | 0x0100);
- reg = snd_soc_read(codec, WM8971_RINVOL);
- snd_soc_write(codec, WM8971_RINVOL, reg | 0x0100);
-
- snd_soc_add_controls(codec, wm8971_snd_controls,
- ARRAY_SIZE(wm8971_snd_controls));
- wm8971_add_widgets(codec);
+ snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100);
+ snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100);
return ret;
}
@@ -702,35 +692,52 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8971 = {
.suspend = wm8971_suspend,
.resume = wm8971_resume,
.set_bias_level = wm8971_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(wm8971_reg),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = wm8971_reg,
+
+ .controls = wm8971_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8971_snd_controls),
+ .dapm_widgets = wm8971_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets),
+ .dapm_routes = wm8971_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes),
+};
+
+static const struct regmap_config wm8971_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
+ .max_register = WM8971_MOUTV,
+
+ .reg_defaults = wm8971_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8971_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
};
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8971_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int wm8971_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
struct wm8971_priv *wm8971;
+ struct regmap *regmap;
int ret;
- wm8971 = kzalloc(sizeof(struct wm8971_priv), GFP_KERNEL);
+ wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv),
+ GFP_KERNEL);
if (wm8971 == NULL)
return -ENOMEM;
+ regmap = devm_regmap_init_i2c(i2c, &wm8971_regmap);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
i2c_set_clientdata(i2c, wm8971);
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8971, &wm8971_dai, 1);
- if (ret < 0)
- kfree(wm8971);
+
return ret;
}
-static __devexit int wm8971_i2c_remove(struct i2c_client *client)
+static int wm8971_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
- kfree(i2c_get_clientdata(client));
return 0;
}
@@ -742,36 +749,15 @@ MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id);
static struct i2c_driver wm8971_i2c_driver = {
.driver = {
- .name = "wm8971-codec",
+ .name = "wm8971",
.owner = THIS_MODULE,
},
.probe = wm8971_i2c_probe,
- .remove = __devexit_p(wm8971_i2c_remove),
+ .remove = wm8971_i2c_remove,
.id_table = wm8971_i2c_id,
};
-#endif
-
-static int __init wm8971_modinit(void)
-{
- int ret = 0;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- ret = i2c_add_driver(&wm8971_i2c_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register WM8971 I2C driver: %d\n",
- ret);
- }
-#endif
- return ret;
-}
-module_init(wm8971_modinit);
-static void __exit wm8971_exit(void)
-{
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- i2c_del_driver(&wm8971_i2c_driver);
-#endif
-}
-module_exit(wm8971_exit);
+module_i2c_driver(wm8971_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8971 driver");
MODULE_AUTHOR("Lab126");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-03 18:35:23 +0000