aboutsummaryrefslogtreecommitdiff
path: root/sound/soc/codecs/max9850.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/max9850.c')
-rw-r--r--sound/soc/codecs/max9850.c100
1 files changed, 49 insertions, 51 deletions
diff --git a/sound/soc/codecs/max9850.c b/sound/soc/codecs/max9850.c
index 208d2ee6185..4fdf5aaa236 100644
--- a/sound/soc/codecs/max9850.c
+++ b/sound/soc/codecs/max9850.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -27,18 +28,26 @@
#include "max9850.h"
struct max9850_priv {
+ struct regmap *regmap;
unsigned int sysclk;
};
/* max9850 register cache */
-static const u8 max9850_reg[MAX9850_CACHEREGNUM] = {
- 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+static const struct reg_default max9850_reg[] = {
+ { 2, 0x0c },
+ { 3, 0x00 },
+ { 4, 0x00 },
+ { 5, 0x00 },
+ { 6, 0x00 },
+ { 7, 0x00 },
+ { 8, 0x00 },
+ { 9, 0x00 },
+ { 10, 0x00 },
};
/* these registers are not used at the moment but provided for the sake of
* completeness */
-static int max9850_volatile_register(struct snd_soc_codec *codec,
- unsigned int reg)
+static bool max9850_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case MAX9850_STATUSA:
@@ -49,6 +58,15 @@ static int max9850_volatile_register(struct snd_soc_codec *codec,
}
}
+static const struct regmap_config max9850_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .max_register = MAX9850_DIGITAL_AUDIO,
+ .volatile_reg = max9850_volatile_register,
+ .cache_type = REGCACHE_RBTREE,
+};
+
static const unsigned int max9850_tlv[] = {
TLV_DB_RANGE_HEAD(4),
0x18, 0x1f, TLV_DB_SCALE_ITEM(-7450, 400, 0),
@@ -86,7 +104,7 @@ SND_SOC_DAPM_INPUT("INL"),
SND_SOC_DAPM_INPUT("INR"),
};
-static const struct snd_soc_dapm_route intercon[] = {
+static const struct snd_soc_dapm_route max9850_dapm_routes[] = {
/* output mixer */
{"Output Mixer", NULL, "DAC"},
{"Output Mixer", "Line In Switch", "Line Input"},
@@ -131,14 +149,14 @@ static int max9850_hw_params(struct snd_pcm_substream *substream,
snd_soc_write(codec, MAX9850_LRCLK_MSB, (lrclk_div >> 8) & 0x7f);
snd_soc_write(codec, MAX9850_LRCLK_LSB, lrclk_div & 0xff);
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S16_LE:
+ switch (params_width(params)) {
+ case 16:
da = 0;
break;
- case SNDRV_PCM_FORMAT_S20_3LE:
+ case 20:
da = 0x2;
break;
- case SNDRV_PCM_FORMAT_S24_LE:
+ case 24:
da = 0x3;
break;
default:
@@ -225,6 +243,7 @@ static int max9850_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
static int max9850_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
+ struct max9850_priv *max9850 = snd_soc_codec_get_drvdata(codec);
int ret;
switch (level) {
@@ -234,7 +253,7 @@ static int max9850_set_bias_level(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_STANDBY:
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
- ret = snd_soc_cache_sync(codec);
+ ret = regcache_sync(max9850->regmap);
if (ret) {
dev_err(codec->dev,
"Failed to sync cache: %d\n", ret);
@@ -254,7 +273,7 @@ static int max9850_set_bias_level(struct snd_soc_codec *codec,
#define MAX9850_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
-static struct snd_soc_dai_ops max9850_dai_ops = {
+static const struct snd_soc_dai_ops max9850_dai_ops = {
.hw_params = max9850_hw_params,
.set_sysclk = max9850_set_dai_sysclk,
.set_fmt = max9850_set_dai_fmt,
@@ -273,7 +292,7 @@ static struct snd_soc_dai_driver max9850_dai = {
};
#ifdef CONFIG_PM
-static int max9850_suspend(struct snd_soc_codec *codec, pm_message_t state)
+static int max9850_suspend(struct snd_soc_codec *codec)
{
max9850_set_bias_level(codec, SND_SOC_BIAS_OFF);
@@ -293,15 +312,6 @@ static int max9850_resume(struct snd_soc_codec *codec)
static int max9850_probe(struct snd_soc_codec *codec)
{
- struct snd_soc_dapm_context *dapm = &codec->dapm;
- int ret;
-
- ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);
- if (ret < 0) {
- dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
- return ret;
- }
-
/* enable zero-detect */
snd_soc_update_bits(codec, MAX9850_GENERAL_PURPOSE, 1, 1);
/* enable slew-rate control */
@@ -309,13 +319,6 @@ static int max9850_probe(struct snd_soc_codec *codec)
/* set slew-rate 125ms */
snd_soc_update_bits(codec, MAX9850_CHARGE_PUMP, 0xff, 0xc0);
- snd_soc_dapm_new_controls(dapm, max9850_dapm_widgets,
- ARRAY_SIZE(max9850_dapm_widgets));
- snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
-
- snd_soc_add_controls(codec, max9850_controls,
- ARRAY_SIZE(max9850_controls));
-
return 0;
}
@@ -324,35 +327,40 @@ static struct snd_soc_codec_driver soc_codec_dev_max9850 = {
.suspend = max9850_suspend,
.resume = max9850_resume,
.set_bias_level = max9850_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(max9850_reg),
- .reg_word_size = sizeof(u8),
- .reg_cache_default = max9850_reg,
- .volatile_register = max9850_volatile_register,
+
+ .controls = max9850_controls,
+ .num_controls = ARRAY_SIZE(max9850_controls),
+ .dapm_widgets = max9850_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(max9850_dapm_widgets),
+ .dapm_routes = max9850_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(max9850_dapm_routes),
};
-static int __devinit max9850_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int max9850_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
struct max9850_priv *max9850;
int ret;
- max9850 = kzalloc(sizeof(struct max9850_priv), GFP_KERNEL);
+ max9850 = devm_kzalloc(&i2c->dev, sizeof(struct max9850_priv),
+ GFP_KERNEL);
if (max9850 == NULL)
return -ENOMEM;
+ max9850->regmap = devm_regmap_init_i2c(i2c, &max9850_regmap);
+ if (IS_ERR(max9850->regmap))
+ return PTR_ERR(max9850->regmap);
+
i2c_set_clientdata(i2c, max9850);
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_max9850, &max9850_dai, 1);
- if (ret < 0)
- kfree(max9850);
return ret;
}
-static __devexit int max9850_i2c_remove(struct i2c_client *client)
+static int max9850_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
- kfree(i2c_get_clientdata(client));
return 0;
}
@@ -368,21 +376,11 @@ static struct i2c_driver max9850_i2c_driver = {
.owner = THIS_MODULE,
},
.probe = max9850_i2c_probe,
- .remove = __devexit_p(max9850_i2c_remove),
+ .remove = max9850_i2c_remove,
.id_table = max9850_i2c_id,
};
-static int __init max9850_init(void)
-{
- return i2c_add_driver(&max9850_i2c_driver);
-}
-module_init(max9850_init);
-
-static void __exit max9850_exit(void)
-{
- i2c_del_driver(&max9850_i2c_driver);
-}
-module_exit(max9850_exit);
+module_i2c_driver(max9850_i2c_driver);
MODULE_AUTHOR("Christian Glindkamp <christian.glindkamp@taskit.de>");
MODULE_DESCRIPTION("ASoC MAX9850 codec driver");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 18:42:41 +0000