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Diffstat (limited to 'sound/soc/codecs/cs4271.c')
-rw-r--r--sound/soc/codecs/cs4271.c272
1 files changed, 172 insertions, 100 deletions
diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index 2415a4118db..93cec52f473 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -25,6 +25,7 @@
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
+#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <sound/pcm.h>
@@ -39,17 +40,15 @@
/*
* CS4271 registers
- * High byte represents SPI chip address (0x10) + write command (0)
- * Low byte - codec register address
*/
-#define CS4271_MODE1 0x2001 /* Mode Control 1 */
-#define CS4271_DACCTL 0x2002 /* DAC Control */
-#define CS4271_DACVOL 0x2003 /* DAC Volume & Mixing Control */
-#define CS4271_VOLA 0x2004 /* DAC Channel A Volume Control */
-#define CS4271_VOLB 0x2005 /* DAC Channel B Volume Control */
-#define CS4271_ADCCTL 0x2006 /* ADC Control */
-#define CS4271_MODE2 0x2007 /* Mode Control 2 */
-#define CS4271_CHIPID 0x2008 /* Chip ID */
+#define CS4271_MODE1 0x01 /* Mode Control 1 */
+#define CS4271_DACCTL 0x02 /* DAC Control */
+#define CS4271_DACVOL 0x03 /* DAC Volume & Mixing Control */
+#define CS4271_VOLA 0x04 /* DAC Channel A Volume Control */
+#define CS4271_VOLB 0x05 /* DAC Channel B Volume Control */
+#define CS4271_ADCCTL 0x06 /* ADC Control */
+#define CS4271_MODE2 0x07 /* Mode Control 2 */
+#define CS4271_CHIPID 0x08 /* Chip ID */
#define CS4271_FIRSTREG CS4271_MODE1
#define CS4271_LASTREG CS4271_MODE2
@@ -144,23 +143,26 @@
* Array do not include Chip ID, as codec driver does not use
* registers read operations at all
*/
-static const u8 cs4271_dflt_reg[CS4271_NR_REGS] = {
- 0,
- 0,
- CS4271_DACCTL_AMUTE,
- CS4271_DACVOL_SOFT | CS4271_DACVOL_ATAPI_AL_BR,
- 0,
- 0,
- 0,
- 0,
+static const struct reg_default cs4271_reg_defaults[] = {
+ { CS4271_MODE1, 0, },
+ { CS4271_DACCTL, CS4271_DACCTL_AMUTE, },
+ { CS4271_DACVOL, CS4271_DACVOL_SOFT | CS4271_DACVOL_ATAPI_AL_BR, },
+ { CS4271_VOLA, 0, },
+ { CS4271_VOLB, 0, },
+ { CS4271_ADCCTL, 0, },
+ { CS4271_MODE2, 0, },
};
+static bool cs4271_volatile_reg(struct device *dev, unsigned int reg)
+{
+ return reg == CS4271_CHIPID;
+}
+
struct cs4271_private {
- /* SND_SOC_I2C or SND_SOC_SPI */
- enum snd_soc_control_type bus_type;
unsigned int mclk;
bool master;
bool deemph;
+ struct regmap *regmap;
/* Current sample rate for de-emphasis control */
int rate;
/* GPIO driving Reset pin, if any */
@@ -171,6 +173,26 @@ struct cs4271_private {
bool enable_soft_reset;
};
+static const struct snd_soc_dapm_widget cs4271_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("AINA"),
+SND_SOC_DAPM_INPUT("AINB"),
+
+SND_SOC_DAPM_OUTPUT("AOUTA+"),
+SND_SOC_DAPM_OUTPUT("AOUTA-"),
+SND_SOC_DAPM_OUTPUT("AOUTB+"),
+SND_SOC_DAPM_OUTPUT("AOUTB-"),
+};
+
+static const struct snd_soc_dapm_route cs4271_dapm_routes[] = {
+ { "Capture", NULL, "AINA" },
+ { "Capture", NULL, "AINB" },
+
+ { "AOUTA+", NULL, "Playback" },
+ { "AOUTA-", NULL, "Playback" },
+ { "AOUTB+", NULL, "Playback" },
+ { "AOUTB-", NULL, "Playback" },
+};
+
/*
* @freq is the desired MCLK rate
* MCLK rate should (c) be the sample rate, multiplied by one of the
@@ -210,14 +232,14 @@ static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai,
switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_LEFT_J:
val |= CS4271_MODE1_DAC_DIF_LJ;
- ret = snd_soc_update_bits(codec, CS4271_ADCCTL,
+ ret = regmap_update_bits(cs4271->regmap, CS4271_ADCCTL,
CS4271_ADCCTL_ADC_DIF_MASK, CS4271_ADCCTL_ADC_DIF_LJ);
if (ret < 0)
return ret;
break;
case SND_SOC_DAIFMT_I2S:
val |= CS4271_MODE1_DAC_DIF_I2S;
- ret = snd_soc_update_bits(codec, CS4271_ADCCTL,
+ ret = regmap_update_bits(cs4271->regmap, CS4271_ADCCTL,
CS4271_ADCCTL_ADC_DIF_MASK, CS4271_ADCCTL_ADC_DIF_I2S);
if (ret < 0)
return ret;
@@ -227,7 +249,7 @@ static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai,
return -EINVAL;
}
- ret = snd_soc_update_bits(codec, CS4271_MODE1,
+ ret = regmap_update_bits(cs4271->regmap, CS4271_MODE1,
CS4271_MODE1_DAC_DIF_MASK | CS4271_MODE1_MASTER, val);
if (ret < 0)
return ret;
@@ -252,7 +274,7 @@ static int cs4271_set_deemph(struct snd_soc_codec *codec)
val <<= 4;
}
- ret = snd_soc_update_bits(codec, CS4271_DACCTL,
+ ret = regmap_update_bits(cs4271->regmap, CS4271_DACCTL,
CS4271_DACCTL_DEM_MASK, val);
if (ret < 0)
return ret;
@@ -262,7 +284,7 @@ static int cs4271_set_deemph(struct snd_soc_codec *codec)
static int cs4271_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 cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
ucontrol->value.enumerated.item[0] = cs4271->deemph;
@@ -272,7 +294,7 @@ static int cs4271_get_deemph(struct snd_kcontrol *kcontrol,
static int cs4271_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 cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
cs4271->deemph = ucontrol->value.enumerated.item[0];
@@ -341,14 +363,14 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
!dai->capture_active) ||
(substream->stream == SNDRV_PCM_STREAM_CAPTURE &&
!dai->playback_active)) {
- ret = snd_soc_update_bits(codec, CS4271_MODE2,
- CS4271_MODE2_PDN,
- CS4271_MODE2_PDN);
+ ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
+ CS4271_MODE2_PDN,
+ CS4271_MODE2_PDN);
if (ret < 0)
return ret;
- ret = snd_soc_update_bits(codec, CS4271_MODE2,
- CS4271_MODE2_PDN, 0);
+ ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
+ CS4271_MODE2_PDN, 0);
if (ret < 0)
return ret;
}
@@ -378,7 +400,7 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
val |= cs4271_clk_tab[i].ratio_mask;
- ret = snd_soc_update_bits(codec, CS4271_MODE1,
+ ret = regmap_update_bits(cs4271->regmap, CS4271_MODE1,
CS4271_MODE1_MODE_MASK | CS4271_MODE1_DIV_MASK, val);
if (ret < 0)
return ret;
@@ -386,22 +408,29 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
return cs4271_set_deemph(codec);
}
-static int cs4271_digital_mute(struct snd_soc_dai *dai, int mute)
+static int cs4271_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
{
struct snd_soc_codec *codec = dai->codec;
+ struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
int ret;
int val_a = 0;
int val_b = 0;
+ if (stream != SNDRV_PCM_STREAM_PLAYBACK)
+ return 0;
+
if (mute) {
val_a = CS4271_VOLA_MUTE;
val_b = CS4271_VOLB_MUTE;
}
- ret = snd_soc_update_bits(codec, CS4271_VOLA, CS4271_VOLA_MUTE, val_a);
+ ret = regmap_update_bits(cs4271->regmap, CS4271_VOLA,
+ CS4271_VOLA_MUTE, val_a);
if (ret < 0)
return ret;
- ret = snd_soc_update_bits(codec, CS4271_VOLB, CS4271_VOLB_MUTE, val_b);
+
+ ret = regmap_update_bits(cs4271->regmap, CS4271_VOLB,
+ CS4271_VOLB_MUTE, val_b);
if (ret < 0)
return ret;
@@ -436,7 +465,7 @@ static const struct snd_soc_dai_ops cs4271_dai_ops = {
.hw_params = cs4271_hw_params,
.set_sysclk = cs4271_set_dai_sysclk,
.set_fmt = cs4271_set_dai_fmt,
- .digital_mute = cs4271_digital_mute,
+ .mute_stream = cs4271_mute_stream,
};
static struct snd_soc_dai_driver cs4271_dai = {
@@ -463,25 +492,33 @@ static struct snd_soc_dai_driver cs4271_dai = {
static int cs4271_soc_suspend(struct snd_soc_codec *codec)
{
int ret;
+ struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+
/* Set power-down bit */
- ret = snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN,
- CS4271_MODE2_PDN);
+ ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
+ CS4271_MODE2_PDN, CS4271_MODE2_PDN);
if (ret < 0)
return ret;
+
return 0;
}
static int cs4271_soc_resume(struct snd_soc_codec *codec)
{
int ret;
+ struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+
/* Restore codec state */
- ret = snd_soc_cache_sync(codec);
+ ret = regcache_sync(cs4271->regmap);
if (ret < 0)
return ret;
+
/* then disable the power-down bit */
- ret = snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN, 0);
+ ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
+ CS4271_MODE2_PDN, 0);
if (ret < 0)
return ret;
+
return 0;
}
#else
@@ -502,14 +539,10 @@ static int cs4271_probe(struct snd_soc_codec *codec)
struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
struct cs4271_platform_data *cs4271plat = codec->dev->platform_data;
int ret;
- int gpio_nreset = -EINVAL;
bool amutec_eq_bmutec = false;
#ifdef CONFIG_OF
if (of_match_device(cs4271_dt_ids, codec->dev)) {
- gpio_nreset = of_get_named_gpio(codec->dev->of_node,
- "reset-gpio", 0);
-
if (of_get_property(codec->dev->of_node,
"cirrus,amutec-eq-bmutec", NULL))
amutec_eq_bmutec = true;
@@ -521,64 +554,37 @@ static int cs4271_probe(struct snd_soc_codec *codec)
#endif
if (cs4271plat) {
- if (gpio_is_valid(cs4271plat->gpio_nreset))
- gpio_nreset = cs4271plat->gpio_nreset;
-
amutec_eq_bmutec = cs4271plat->amutec_eq_bmutec;
cs4271->enable_soft_reset = cs4271plat->enable_soft_reset;
}
- if (gpio_nreset >= 0)
- if (devm_gpio_request(codec->dev, gpio_nreset, "CS4271 Reset"))
- gpio_nreset = -EINVAL;
- if (gpio_nreset >= 0) {
+ if (gpio_is_valid(cs4271->gpio_nreset)) {
/* Reset codec */
- gpio_direction_output(gpio_nreset, 0);
+ gpio_direction_output(cs4271->gpio_nreset, 0);
udelay(1);
- gpio_set_value(gpio_nreset, 1);
+ gpio_set_value(cs4271->gpio_nreset, 1);
/* Give the codec time to wake up */
udelay(1);
}
- cs4271->gpio_nreset = gpio_nreset;
-
- /*
- * In case of I2C, chip address specified in board data.
- * So cache IO operations use 8 bit codec register address.
- * In case of SPI, chip address and register address
- * passed together as 16 bit value.
- * Anyway, register address is masked with 0xFF inside
- * soc-cache code.
- */
- if (cs4271->bus_type == SND_SOC_SPI)
- ret = snd_soc_codec_set_cache_io(codec, 16, 8,
- cs4271->bus_type);
- else
- ret = snd_soc_codec_set_cache_io(codec, 8, 8,
- cs4271->bus_type);
- if (ret) {
- dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
- return ret;
- }
-
- ret = snd_soc_update_bits(codec, CS4271_MODE2,
- CS4271_MODE2_PDN | CS4271_MODE2_CPEN,
- CS4271_MODE2_PDN | CS4271_MODE2_CPEN);
+ ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
+ CS4271_MODE2_PDN | CS4271_MODE2_CPEN,
+ CS4271_MODE2_PDN | CS4271_MODE2_CPEN);
if (ret < 0)
return ret;
- ret = snd_soc_update_bits(codec, CS4271_MODE2, CS4271_MODE2_PDN, 0);
+ ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
+ CS4271_MODE2_PDN, 0);
if (ret < 0)
return ret;
/* Power-up sequence requires 85 uS */
udelay(85);
if (amutec_eq_bmutec)
- snd_soc_update_bits(codec, CS4271_MODE2,
- CS4271_MODE2_MUTECAEQUB,
- CS4271_MODE2_MUTECAEQUB);
+ regmap_update_bits(cs4271->regmap, CS4271_MODE2,
+ CS4271_MODE2_MUTECAEQUB,
+ CS4271_MODE2_MUTECAEQUB);
- return snd_soc_add_codec_controls(codec, cs4271_snd_controls,
- ARRAY_SIZE(cs4271_snd_controls));
+ return 0;
}
static int cs4271_remove(struct snd_soc_codec *codec)
@@ -597,23 +603,74 @@ static struct snd_soc_codec_driver soc_codec_dev_cs4271 = {
.remove = cs4271_remove,
.suspend = cs4271_soc_suspend,
.resume = cs4271_soc_resume,
- .reg_cache_default = cs4271_dflt_reg,
- .reg_cache_size = ARRAY_SIZE(cs4271_dflt_reg),
- .reg_word_size = sizeof(cs4271_dflt_reg[0]),
- .compress_type = SND_SOC_FLAT_COMPRESSION,
+
+ .controls = cs4271_snd_controls,
+ .num_controls = ARRAY_SIZE(cs4271_snd_controls),
+ .dapm_widgets = cs4271_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(cs4271_dapm_widgets),
+ .dapm_routes = cs4271_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(cs4271_dapm_routes),
};
-#if defined(CONFIG_SPI_MASTER)
-static int cs4271_spi_probe(struct spi_device *spi)
+static int cs4271_common_probe(struct device *dev,
+ struct cs4271_private **c)
{
+ struct cs4271_platform_data *cs4271plat = dev->platform_data;
struct cs4271_private *cs4271;
- cs4271 = devm_kzalloc(&spi->dev, sizeof(*cs4271), GFP_KERNEL);
+ cs4271 = devm_kzalloc(dev, sizeof(*cs4271), GFP_KERNEL);
if (!cs4271)
return -ENOMEM;
+ if (of_match_device(cs4271_dt_ids, dev))
+ cs4271->gpio_nreset =
+ of_get_named_gpio(dev->of_node, "reset-gpio", 0);
+
+ if (cs4271plat)
+ cs4271->gpio_nreset = cs4271plat->gpio_nreset;
+
+ if (gpio_is_valid(cs4271->gpio_nreset)) {
+ int ret;
+
+ ret = devm_gpio_request(dev, cs4271->gpio_nreset,
+ "CS4271 Reset");
+ if (ret < 0)
+ return ret;
+ }
+
+ *c = cs4271;
+ return 0;
+}
+
+#if defined(CONFIG_SPI_MASTER)
+
+static const struct regmap_config cs4271_spi_regmap = {
+ .reg_bits = 16,
+ .val_bits = 8,
+ .max_register = CS4271_LASTREG,
+ .read_flag_mask = 0x21,
+ .write_flag_mask = 0x20,
+
+ .reg_defaults = cs4271_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(cs4271_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = cs4271_volatile_reg,
+};
+
+static int cs4271_spi_probe(struct spi_device *spi)
+{
+ struct cs4271_private *cs4271;
+ int ret;
+
+ ret = cs4271_common_probe(&spi->dev, &cs4271);
+ if (ret < 0)
+ return ret;
+
spi_set_drvdata(spi, cs4271);
- cs4271->bus_type = SND_SOC_SPI;
+ cs4271->regmap = devm_regmap_init_spi(spi, &cs4271_spi_regmap);
+ if (IS_ERR(cs4271->regmap))
+ return PTR_ERR(cs4271->regmap);
return snd_soc_register_codec(&spi->dev, &soc_codec_dev_cs4271,
&cs4271_dai, 1);
@@ -636,24 +693,39 @@ static struct spi_driver cs4271_spi_driver = {
};
#endif /* defined(CONFIG_SPI_MASTER) */
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
static const struct i2c_device_id cs4271_i2c_id[] = {
{"cs4271", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id);
+static const struct regmap_config cs4271_i2c_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = CS4271_LASTREG,
+
+ .reg_defaults = cs4271_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(cs4271_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = cs4271_volatile_reg,
+};
+
static int cs4271_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct cs4271_private *cs4271;
+ int ret;
- cs4271 = devm_kzalloc(&client->dev, sizeof(*cs4271), GFP_KERNEL);
- if (!cs4271)
- return -ENOMEM;
+ ret = cs4271_common_probe(&client->dev, &cs4271);
+ if (ret < 0)
+ return ret;
i2c_set_clientdata(client, cs4271);
- cs4271->bus_type = SND_SOC_I2C;
+ cs4271->regmap = devm_regmap_init_i2c(client, &cs4271_i2c_regmap);
+ if (IS_ERR(cs4271->regmap))
+ return PTR_ERR(cs4271->regmap);
return snd_soc_register_codec(&client->dev, &soc_codec_dev_cs4271,
&cs4271_dai, 1);
@@ -675,7 +747,7 @@ static struct i2c_driver cs4271_i2c_driver = {
.probe = cs4271_i2c_probe,
.remove = cs4271_i2c_remove,
};
-#endif /* defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) */
+#endif /* IS_ENABLED(CONFIG_I2C) */
/*
* We only register our serial bus driver here without
@@ -688,7 +760,7 @@ static int __init cs4271_modinit(void)
{
int ret;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
ret = i2c_add_driver(&cs4271_i2c_driver);
if (ret) {
pr_err("Failed to register CS4271 I2C driver: %d\n", ret);
@@ -714,7 +786,7 @@ static void __exit cs4271_modexit(void)
spi_unregister_driver(&cs4271_spi_driver);
#endif
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
i2c_del_driver(&cs4271_i2c_driver);
#endif
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 04:05:12 +0000