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Diffstat (limited to 'sound/soc/codecs/wm8940.c')
-rw-r--r--sound/soc/codecs/wm8940.c193
1 files changed, 121 insertions, 72 deletions
diff --git a/sound/soc/codecs/wm8940.c b/sound/soc/codecs/wm8940.c
index 4858b5c039fa..b404c26c1753 100644
--- a/sound/soc/codecs/wm8940.c
+++ b/sound/soc/codecs/wm8940.c
@@ -28,7 +28,7 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
-#include <linux/spi/spi.h>
+#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -41,78 +41,116 @@
struct wm8940_priv {
unsigned int sysclk;
- enum snd_soc_control_type control_type;
+ struct regmap *regmap;
};
-static int wm8940_volatile_register(struct snd_soc_codec *codec,
- unsigned int reg)
+static bool wm8940_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case WM8940_SOFTRESET:
- return 1;
+ return true;
default:
- return 0;
+ return false;
+ }
+}
+
+static bool wm8940_readable_register(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8940_SOFTRESET:
+ case WM8940_POWER1:
+ case WM8940_POWER2:
+ case WM8940_POWER3:
+ case WM8940_IFACE:
+ case WM8940_COMPANDINGCTL:
+ case WM8940_CLOCK:
+ case WM8940_ADDCNTRL:
+ case WM8940_GPIO:
+ case WM8940_CTLINT:
+ case WM8940_DAC:
+ case WM8940_DACVOL:
+ case WM8940_ADC:
+ case WM8940_ADCVOL:
+ case WM8940_NOTCH1:
+ case WM8940_NOTCH2:
+ case WM8940_NOTCH3:
+ case WM8940_NOTCH4:
+ case WM8940_NOTCH5:
+ case WM8940_NOTCH6:
+ case WM8940_NOTCH7:
+ case WM8940_NOTCH8:
+ case WM8940_DACLIM1:
+ case WM8940_DACLIM2:
+ case WM8940_ALC1:
+ case WM8940_ALC2:
+ case WM8940_ALC3:
+ case WM8940_NOISEGATE:
+ case WM8940_PLLN:
+ case WM8940_PLLK1:
+ case WM8940_PLLK2:
+ case WM8940_PLLK3:
+ case WM8940_ALC4:
+ case WM8940_INPUTCTL:
+ case WM8940_PGAGAIN:
+ case WM8940_ADCBOOST:
+ case WM8940_OUTPUTCTL:
+ case WM8940_SPKMIX:
+ case WM8940_SPKVOL:
+ case WM8940_MONOMIX:
+ return true;
+ default:
+ return false;
}
}
-static u16 wm8940_reg_defaults[] = {
- 0x8940, /* Soft Reset */
- 0x0000, /* Power 1 */
- 0x0000, /* Power 2 */
- 0x0000, /* Power 3 */
- 0x0010, /* Interface Control */
- 0x0000, /* Companding Control */
- 0x0140, /* Clock Control */
- 0x0000, /* Additional Controls */
- 0x0000, /* GPIO Control */
- 0x0002, /* Auto Increment Control */
- 0x0000, /* DAC Control */
- 0x00FF, /* DAC Volume */
- 0,
- 0,
- 0x0100, /* ADC Control */
- 0x00FF, /* ADC Volume */
- 0x0000, /* Notch Filter 1 Control 1 */
- 0x0000, /* Notch Filter 1 Control 2 */
- 0x0000, /* Notch Filter 2 Control 1 */
- 0x0000, /* Notch Filter 2 Control 2 */
- 0x0000, /* Notch Filter 3 Control 1 */
- 0x0000, /* Notch Filter 3 Control 2 */
- 0x0000, /* Notch Filter 4 Control 1 */
- 0x0000, /* Notch Filter 4 Control 2 */
- 0x0032, /* DAC Limit Control 1 */
- 0x0000, /* DAC Limit Control 2 */
- 0,
- 0,
- 0,
- 0,
- 0,
- 0,
- 0x0038, /* ALC Control 1 */
- 0x000B, /* ALC Control 2 */
- 0x0032, /* ALC Control 3 */
- 0x0000, /* Noise Gate */
- 0x0041, /* PLLN */
- 0x000C, /* PLLK1 */
- 0x0093, /* PLLK2 */
- 0x00E9, /* PLLK3 */
- 0,
- 0,
- 0x0030, /* ALC Control 4 */
- 0,
- 0x0002, /* Input Control */
- 0x0050, /* PGA Gain */
- 0,
- 0x0002, /* ADC Boost Control */
- 0,
- 0x0002, /* Output Control */
- 0x0000, /* Speaker Mixer Control */
- 0,
- 0,
- 0,
- 0x0079, /* Speaker Volume */
- 0,
- 0x0000, /* Mono Mixer Control */
+static const struct reg_default wm8940_reg_defaults[] = {
+ { 0x1, 0x0000 }, /* Power 1 */
+ { 0x2, 0x0000 }, /* Power 2 */
+ { 0x3, 0x0000 }, /* Power 3 */
+ { 0x4, 0x0010 }, /* Interface Control */
+ { 0x5, 0x0000 }, /* Companding Control */
+ { 0x6, 0x0140 }, /* Clock Control */
+ { 0x7, 0x0000 }, /* Additional Controls */
+ { 0x8, 0x0000 }, /* GPIO Control */
+ { 0x9, 0x0002 }, /* Auto Increment Control */
+ { 0xa, 0x0000 }, /* DAC Control */
+ { 0xb, 0x00FF }, /* DAC Volume */
+
+ { 0xe, 0x0100 }, /* ADC Control */
+ { 0xf, 0x00FF }, /* ADC Volume */
+ { 0x10, 0x0000 }, /* Notch Filter 1 Control 1 */
+ { 0x11, 0x0000 }, /* Notch Filter 1 Control 2 */
+ { 0x12, 0x0000 }, /* Notch Filter 2 Control 1 */
+ { 0x13, 0x0000 }, /* Notch Filter 2 Control 2 */
+ { 0x14, 0x0000 }, /* Notch Filter 3 Control 1 */
+ { 0x15, 0x0000 }, /* Notch Filter 3 Control 2 */
+ { 0x16, 0x0000 }, /* Notch Filter 4 Control 1 */
+ { 0x17, 0x0000 }, /* Notch Filter 4 Control 2 */
+ { 0x18, 0x0032 }, /* DAC Limit Control 1 */
+ { 0x19, 0x0000 }, /* DAC Limit Control 2 */
+
+ { 0x20, 0x0038 }, /* ALC Control 1 */
+ { 0x21, 0x000B }, /* ALC Control 2 */
+ { 0x22, 0x0032 }, /* ALC Control 3 */
+ { 0x23, 0x0000 }, /* Noise Gate */
+ { 0x24, 0x0041 }, /* PLLN */
+ { 0x25, 0x000C }, /* PLLK1 */
+ { 0x26, 0x0093 }, /* PLLK2 */
+ { 0x27, 0x00E9 }, /* PLLK3 */
+
+ { 0x2a, 0x0030 }, /* ALC Control 4 */
+
+ { 0x2c, 0x0002 }, /* Input Control */
+ { 0x2d, 0x0050 }, /* PGA Gain */
+
+ { 0x2f, 0x0002 }, /* ADC Boost Control */
+
+ { 0x31, 0x0002 }, /* Output Control */
+ { 0x32, 0x0000 }, /* Speaker Mixer Control */
+
+ { 0x36, 0x0079 }, /* Speaker Volume */
+
+ { 0x38, 0x0000 }, /* Mono Mixer Control */
};
static const char *wm8940_companding[] = { "Off", "NC", "u-law", "A-law" };
@@ -431,6 +469,7 @@ static int wm8940_mute(struct snd_soc_dai *dai, int mute)
static int wm8940_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
+ struct wm8940_priv *wm8940 = snd_soc_codec_get_drvdata(codec);
u16 val;
u16 pwr_reg = snd_soc_read(codec, WM8940_POWER1) & 0x1F0;
int ret = 0;
@@ -454,7 +493,7 @@ static int wm8940_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(wm8940->regmap);
if (ret < 0) {
dev_err(codec->dev, "Failed to sync cache: %d\n", ret);
return ret;
@@ -669,12 +708,11 @@ static int wm8940_resume(struct snd_soc_codec *codec)
static int wm8940_probe(struct snd_soc_codec *codec)
{
- struct wm8940_priv *wm8940 = snd_soc_codec_get_drvdata(codec);
struct wm8940_setup_data *pdata = codec->dev->platform_data;
int ret;
u16 reg;
- ret = snd_soc_codec_set_cache_io(codec, 8, 16, wm8940->control_type);
+ ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
if (ret < 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
return ret;
@@ -722,10 +760,18 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8940 = {
.num_dapm_widgets = ARRAY_SIZE(wm8940_dapm_widgets),
.dapm_routes = wm8940_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(wm8940_dapm_routes),
- .reg_cache_size = ARRAY_SIZE(wm8940_reg_defaults),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = wm8940_reg_defaults,
- .volatile_register = wm8940_volatile_register,
+};
+
+static const struct regmap_config wm8940_regmap = {
+ .reg_bits = 8,
+ .val_bits = 16,
+
+ .max_register = WM8940_MONOMIX,
+ .reg_defaults = wm8940_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8940_reg_defaults),
+
+ .readable_reg = wm8940_readable_register,
+ .volatile_reg = wm8940_volatile_register,
};
static int wm8940_i2c_probe(struct i2c_client *i2c,
@@ -739,8 +785,11 @@ static int wm8940_i2c_probe(struct i2c_client *i2c,
if (wm8940 == NULL)
return -ENOMEM;
+ wm8940->regmap = devm_regmap_init_i2c(i2c, &wm8940_regmap);
+ if (IS_ERR(wm8940->regmap))
+ return PTR_ERR(wm8940->regmap);
+
i2c_set_clientdata(i2c, wm8940);
- wm8940->control_type = SND_SOC_I2C;
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8940, &wm8940_dai, 1);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 01:47:03 +0000