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Diffstat (limited to 'sound/soc/codecs/wm8955.c')
-rw-r--r--sound/soc/codecs/wm8955.c299
1 files changed, 140 insertions, 159 deletions
diff --git a/sound/soc/codecs/wm8955.c b/sound/soc/codecs/wm8955.c
index 5e0214d6293..2a35108f233 100644
--- a/sound/soc/codecs/wm8955.c
+++ b/sound/soc/codecs/wm8955.c
@@ -16,7 +16,7 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
-#include <linux/platform_device.h>
+#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <sound/core.h>
@@ -39,7 +39,7 @@ static const char *wm8955_supply_names[WM8955_NUM_SUPPLIES] = {
/* codec private data */
struct wm8955_priv {
- enum snd_soc_control_type control_type;
+ struct regmap *regmap;
unsigned int mclk_rate;
@@ -49,69 +49,85 @@ struct wm8955_priv {
struct regulator_bulk_data supplies[WM8955_NUM_SUPPLIES];
};
-static const u16 wm8955_reg[WM8955_MAX_REGISTER + 1] = {
- 0x0000, /* R0 */
- 0x0000, /* R1 */
- 0x0079, /* R2 - LOUT1 volume */
- 0x0079, /* R3 - ROUT1 volume */
- 0x0000, /* R4 */
- 0x0008, /* R5 - DAC Control */
- 0x0000, /* R6 */
- 0x000A, /* R7 - Audio Interface */
- 0x0000, /* R8 - Sample Rate */
- 0x0000, /* R9 */
- 0x00FF, /* R10 - Left DAC volume */
- 0x00FF, /* R11 - Right DAC volume */
- 0x000F, /* R12 - Bass control */
- 0x000F, /* R13 - Treble control */
- 0x0000, /* R14 */
- 0x0000, /* R15 - Reset */
- 0x0000, /* R16 */
- 0x0000, /* R17 */
- 0x0000, /* R18 */
- 0x0000, /* R19 */
- 0x0000, /* R20 */
- 0x0000, /* R21 */
- 0x0000, /* R22 */
- 0x00C1, /* R23 - Additional control (1) */
- 0x0000, /* R24 - Additional control (2) */
- 0x0000, /* R25 - Power Management (1) */
- 0x0000, /* R26 - Power Management (2) */
- 0x0000, /* R27 - Additional Control (3) */
- 0x0000, /* R28 */
- 0x0000, /* R29 */
- 0x0000, /* R30 */
- 0x0000, /* R31 */
- 0x0000, /* R32 */
- 0x0000, /* R33 */
- 0x0050, /* R34 - Left out Mix (1) */
- 0x0050, /* R35 - Left out Mix (2) */
- 0x0050, /* R36 - Right out Mix (1) */
- 0x0050, /* R37 - Right Out Mix (2) */
- 0x0050, /* R38 - Mono out Mix (1) */
- 0x0050, /* R39 - Mono out Mix (2) */
- 0x0079, /* R40 - LOUT2 volume */
- 0x0079, /* R41 - ROUT2 volume */
- 0x0079, /* R42 - MONOOUT volume */
- 0x0000, /* R43 - Clocking / PLL */
- 0x0103, /* R44 - PLL Control 1 */
- 0x0024, /* R45 - PLL Control 2 */
- 0x01BA, /* R46 - PLL Control 3 */
- 0x0000, /* R47 */
- 0x0000, /* R48 */
- 0x0000, /* R49 */
- 0x0000, /* R50 */
- 0x0000, /* R51 */
- 0x0000, /* R52 */
- 0x0000, /* R53 */
- 0x0000, /* R54 */
- 0x0000, /* R55 */
- 0x0000, /* R56 */
- 0x0000, /* R57 */
- 0x0000, /* R58 */
- 0x0000, /* R59 - PLL Control 4 */
+static const struct reg_default wm8955_reg_defaults[] = {
+ { 2, 0x0079 }, /* R2 - LOUT1 volume */
+ { 3, 0x0079 }, /* R3 - ROUT1 volume */
+ { 5, 0x0008 }, /* R5 - DAC Control */
+ { 7, 0x000A }, /* R7 - Audio Interface */
+ { 8, 0x0000 }, /* R8 - Sample Rate */
+ { 10, 0x00FF }, /* R10 - Left DAC volume */
+ { 11, 0x00FF }, /* R11 - Right DAC volume */
+ { 12, 0x000F }, /* R12 - Bass control */
+ { 13, 0x000F }, /* R13 - Treble control */
+ { 23, 0x00C1 }, /* R23 - Additional control (1) */
+ { 24, 0x0000 }, /* R24 - Additional control (2) */
+ { 25, 0x0000 }, /* R25 - Power Management (1) */
+ { 26, 0x0000 }, /* R26 - Power Management (2) */
+ { 27, 0x0000 }, /* R27 - Additional Control (3) */
+ { 34, 0x0050 }, /* R34 - Left out Mix (1) */
+ { 35, 0x0050 }, /* R35 - Left out Mix (2) */
+ { 36, 0x0050 }, /* R36 - Right out Mix (1) */
+ { 37, 0x0050 }, /* R37 - Right Out Mix (2) */
+ { 38, 0x0050 }, /* R38 - Mono out Mix (1) */
+ { 39, 0x0050 }, /* R39 - Mono out Mix (2) */
+ { 40, 0x0079 }, /* R40 - LOUT2 volume */
+ { 41, 0x0079 }, /* R41 - ROUT2 volume */
+ { 42, 0x0079 }, /* R42 - MONOOUT volume */
+ { 43, 0x0000 }, /* R43 - Clocking / PLL */
+ { 44, 0x0103 }, /* R44 - PLL Control 1 */
+ { 45, 0x0024 }, /* R45 - PLL Control 2 */
+ { 46, 0x01BA }, /* R46 - PLL Control 3 */
+ { 59, 0x0000 }, /* R59 - PLL Control 4 */
};
+static bool wm8955_writeable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8955_LOUT1_VOLUME:
+ case WM8955_ROUT1_VOLUME:
+ case WM8955_DAC_CONTROL:
+ case WM8955_AUDIO_INTERFACE:
+ case WM8955_SAMPLE_RATE:
+ case WM8955_LEFT_DAC_VOLUME:
+ case WM8955_RIGHT_DAC_VOLUME:
+ case WM8955_BASS_CONTROL:
+ case WM8955_TREBLE_CONTROL:
+ case WM8955_RESET:
+ case WM8955_ADDITIONAL_CONTROL_1:
+ case WM8955_ADDITIONAL_CONTROL_2:
+ case WM8955_POWER_MANAGEMENT_1:
+ case WM8955_POWER_MANAGEMENT_2:
+ case WM8955_ADDITIONAL_CONTROL_3:
+ case WM8955_LEFT_OUT_MIX_1:
+ case WM8955_LEFT_OUT_MIX_2:
+ case WM8955_RIGHT_OUT_MIX_1:
+ case WM8955_RIGHT_OUT_MIX_2:
+ case WM8955_MONO_OUT_MIX_1:
+ case WM8955_MONO_OUT_MIX_2:
+ case WM8955_LOUT2_VOLUME:
+ case WM8955_ROUT2_VOLUME:
+ case WM8955_MONOOUT_VOLUME:
+ case WM8955_CLOCKING_PLL:
+ case WM8955_PLL_CONTROL_1:
+ case WM8955_PLL_CONTROL_2:
+ case WM8955_PLL_CONTROL_3:
+ case WM8955_PLL_CONTROL_4:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool wm8955_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8955_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
static int wm8955_reset(struct snd_soc_codec *codec)
{
return snd_soc_write(codec, WM8955_RESET, 0);
@@ -176,7 +192,7 @@ static int wm8995_pll_factors(struct device *dev,
return 0;
}
-/* Lookup table specifiying SRATE (table 25 in datasheet); some of the
+/* Lookup table specifying SRATE (table 25 in datasheet); some of the
* output frequencies have been rounded to the standard frequencies
* they are intended to match where the error is slight. */
static struct {
@@ -374,7 +390,7 @@ static int wm8955_set_deemph(struct snd_soc_codec *codec)
static int wm8955_get_deemph(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
ucontrol->value.enumerated.item[0] = wm8955->deemph;
@@ -384,7 +400,7 @@ static int wm8955_get_deemph(struct snd_kcontrol *kcontrol,
static int wm8955_put_deemph(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
int deemph = ucontrol->value.enumerated.item[0];
@@ -400,22 +416,21 @@ static const char *bass_mode_text[] = {
"Linear", "Adaptive",
};
-static const struct soc_enum bass_mode =
- SOC_ENUM_SINGLE(WM8955_BASS_CONTROL, 7, 2, bass_mode_text);
+static SOC_ENUM_SINGLE_DECL(bass_mode, WM8955_BASS_CONTROL, 7, bass_mode_text);
static const char *bass_cutoff_text[] = {
"Low", "High"
};
-static const struct soc_enum bass_cutoff =
- SOC_ENUM_SINGLE(WM8955_BASS_CONTROL, 6, 2, bass_cutoff_text);
+static SOC_ENUM_SINGLE_DECL(bass_cutoff, WM8955_BASS_CONTROL, 6,
+ bass_cutoff_text);
static const char *treble_cutoff_text[] = {
"High", "Low"
};
-static const struct soc_enum treble_cutoff =
- SOC_ENUM_SINGLE(WM8955_TREBLE_CONTROL, 6, 2, treble_cutoff_text);
+static SOC_ENUM_SINGLE_DECL(treble_cutoff, WM8955_TREBLE_CONTROL, 2,
+ treble_cutoff_text);
static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1);
static const DECLARE_TLV_DB_SCALE(atten_tlv, -600, 600, 0);
@@ -528,7 +543,7 @@ SND_SOC_DAPM_OUTPUT("MONOOUT"),
SND_SOC_DAPM_OUTPUT("OUT3"),
};
-static const struct snd_soc_dapm_route wm8955_intercon[] = {
+static const struct snd_soc_dapm_route wm8955_dapm_routes[] = {
{ "DACL", NULL, "SYSCLK" },
{ "DACR", NULL, "SYSCLK" },
@@ -573,21 +588,6 @@ static const struct snd_soc_dapm_route wm8955_intercon[] = {
{ "OUT3", NULL, "OUT3 PGA" },
};
-static int wm8955_add_widgets(struct snd_soc_codec *codec)
-{
- struct snd_soc_dapm_context *dapm = &codec->dapm;
-
- snd_soc_add_controls(codec, wm8955_snd_controls,
- ARRAY_SIZE(wm8955_snd_controls));
-
- snd_soc_dapm_new_controls(dapm, wm8955_dapm_widgets,
- ARRAY_SIZE(wm8955_dapm_widgets));
- snd_soc_dapm_add_routes(dapm, wm8955_intercon,
- ARRAY_SIZE(wm8955_intercon));
-
- return 0;
-}
-
static int wm8955_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -766,8 +766,7 @@ static int wm8955_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
- u16 *reg_cache = codec->reg_cache;
- int ret, i;
+ int ret;
switch (level) {
case SND_SOC_BIAS_ON:
@@ -796,18 +795,7 @@ static int wm8955_set_bias_level(struct snd_soc_codec *codec,
return ret;
}
- /* Sync back cached values if they're
- * different from the hardware default.
- */
- for (i = 0; i < codec->driver->reg_cache_size; i++) {
- if (i == WM8955_RESET)
- continue;
-
- if (reg_cache[i] == wm8955_reg[i])
- continue;
-
- snd_soc_write(codec, i, reg_cache[i]);
- }
+ regcache_sync(wm8955->regmap);
/* Enable VREF and VMID */
snd_soc_update_bits(codec, WM8955_POWER_MANAGEMENT_1,
@@ -859,7 +847,7 @@ static int wm8955_set_bias_level(struct snd_soc_codec *codec,
#define WM8955_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
-static struct snd_soc_dai_ops wm8955_dai_ops = {
+static const struct snd_soc_dai_ops wm8955_dai_ops = {
.set_sysclk = wm8955_set_sysclk,
.set_fmt = wm8955_set_fmt,
.hw_params = wm8955_hw_params,
@@ -879,10 +867,14 @@ static struct snd_soc_dai_driver wm8955_dai = {
};
#ifdef CONFIG_PM
-static int wm8955_suspend(struct snd_soc_codec *codec, pm_message_t state)
+static int wm8955_suspend(struct snd_soc_codec *codec)
{
+ struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
+
wm8955_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ regcache_mark_dirty(wm8955->regmap);
+
return 0;
}
@@ -901,19 +893,12 @@ static int wm8955_probe(struct snd_soc_codec *codec)
{
struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
struct wm8955_pdata *pdata = dev_get_platdata(codec->dev);
- u16 *reg_cache = codec->reg_cache;
int ret, i;
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8955->control_type);
- if (ret != 0) {
- dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
- return ret;
- }
-
for (i = 0; i < ARRAY_SIZE(wm8955->supplies); i++)
wm8955->supplies[i].supply = wm8955_supply_names[i];
- ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8955->supplies),
+ ret = devm_regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8955->supplies),
wm8955->supplies);
if (ret != 0) {
dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
@@ -924,7 +909,7 @@ static int wm8955_probe(struct snd_soc_codec *codec)
wm8955->supplies);
if (ret != 0) {
dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
- goto err_get;
+ return ret;
}
ret = wm8955_reset(codec);
@@ -959,12 +944,12 @@ static int wm8955_probe(struct snd_soc_codec *codec)
/* Set platform data values */
if (pdata) {
if (pdata->out2_speaker)
- reg_cache[WM8955_ADDITIONAL_CONTROL_2]
- |= WM8955_ROUT2INV;
+ snd_soc_update_bits(codec, WM8955_ADDITIONAL_CONTROL_2,
+ WM8955_ROUT2INV, WM8955_ROUT2INV);
if (pdata->monoin_diff)
- reg_cache[WM8955_MONO_OUT_MIX_1]
- |= WM8955_DMEN;
+ snd_soc_update_bits(codec, WM8955_MONO_OUT_MIX_1,
+ WM8955_DMEN, WM8955_DMEN);
}
wm8955_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
@@ -972,22 +957,16 @@ static int wm8955_probe(struct snd_soc_codec *codec)
/* Bias level configuration will have done an extra enable */
regulator_bulk_disable(ARRAY_SIZE(wm8955->supplies), wm8955->supplies);
- wm8955_add_widgets(codec);
return 0;
err_enable:
regulator_bulk_disable(ARRAY_SIZE(wm8955->supplies), wm8955->supplies);
-err_get:
- regulator_bulk_free(ARRAY_SIZE(wm8955->supplies), wm8955->supplies);
return ret;
}
static int wm8955_remove(struct snd_soc_codec *codec)
{
- struct wm8955_priv *wm8955 = snd_soc_codec_get_drvdata(codec);
-
wm8955_set_bias_level(codec, SND_SOC_BIAS_OFF);
- regulator_bulk_free(ARRAY_SIZE(wm8955->supplies), wm8955->supplies);
return 0;
}
@@ -997,36 +976,59 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8955 = {
.suspend = wm8955_suspend,
.resume = wm8955_resume,
.set_bias_level = wm8955_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(wm8955_reg),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = wm8955_reg,
+
+ .controls = wm8955_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8955_snd_controls),
+ .dapm_widgets = wm8955_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8955_dapm_widgets),
+ .dapm_routes = wm8955_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8955_dapm_routes),
+};
+
+static const struct regmap_config wm8955_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
+
+ .max_register = WM8955_MAX_REGISTER,
+ .volatile_reg = wm8955_volatile,
+ .writeable_reg = wm8955_writeable,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = wm8955_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8955_reg_defaults),
};
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8955_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int wm8955_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
{
struct wm8955_priv *wm8955;
int ret;
- wm8955 = kzalloc(sizeof(struct wm8955_priv), GFP_KERNEL);
+ wm8955 = devm_kzalloc(&i2c->dev, sizeof(struct wm8955_priv),
+ GFP_KERNEL);
if (wm8955 == NULL)
return -ENOMEM;
+ wm8955->regmap = devm_regmap_init_i2c(i2c, &wm8955_regmap);
+ if (IS_ERR(wm8955->regmap)) {
+ ret = PTR_ERR(wm8955->regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ return ret;
+ }
+
i2c_set_clientdata(i2c, wm8955);
- wm8955->control_type = SND_SOC_I2C;
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8955, &wm8955_dai, 1);
- if (ret < 0)
- kfree(wm8955);
+
return ret;
}
-static __devexit int wm8955_i2c_remove(struct i2c_client *client)
+static int wm8955_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
- kfree(i2c_get_clientdata(client));
+
return 0;
}
@@ -1038,36 +1040,15 @@ MODULE_DEVICE_TABLE(i2c, wm8955_i2c_id);
static struct i2c_driver wm8955_i2c_driver = {
.driver = {
- .name = "wm8955-codec",
+ .name = "wm8955",
.owner = THIS_MODULE,
},
.probe = wm8955_i2c_probe,
- .remove = __devexit_p(wm8955_i2c_remove),
+ .remove = wm8955_i2c_remove,
.id_table = wm8955_i2c_id,
};
-#endif
-static int __init wm8955_modinit(void)
-{
- int ret = 0;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- ret = i2c_add_driver(&wm8955_i2c_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register WM8955 I2C driver: %d\n",
- ret);
- }
-#endif
- return ret;
-}
-module_init(wm8955_modinit);
-
-static void __exit wm8955_exit(void)
-{
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
- i2c_del_driver(&wm8955_i2c_driver);
-#endif
-}
-module_exit(wm8955_exit);
+module_i2c_driver(wm8955_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8955 driver");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 18:00:16 +0000