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Diffstat (limited to 'sound/soc/codecs/wm8580.c')
-rw-r--r--sound/soc/codecs/wm8580.c297
1 files changed, 168 insertions, 129 deletions
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index a2e0ed59b37..7665ff6aea6 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -1,7 +1,7 @@
/*
* wm8580.c -- WM8580 ALSA Soc Audio driver
*
- * Copyright 2008, 2009 Wolfson Microelectronics PLC.
+ * Copyright 2008-12 Wolfson Microelectronics PLC.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -23,15 +23,15 @@
#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 <linux/of_device.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/tlv.h>
#include <sound/initval.h>
#include <asm/div64.h>
@@ -158,23 +158,72 @@
* We can't read the WM8580 register space when we
* are using 2 wire for device control, so we cache them instead.
*/
-static const u16 wm8580_reg[] = {
- 0x0121, 0x017e, 0x007d, 0x0014, /*R3*/
- 0x0121, 0x017e, 0x007d, 0x0194, /*R7*/
- 0x001c, 0x0002, 0x0002, 0x00c2, /*R11*/
- 0x0182, 0x0082, 0x000a, 0x0024, /*R15*/
- 0x0009, 0x0000, 0x00ff, 0x0000, /*R19*/
- 0x00ff, 0x00ff, 0x00ff, 0x00ff, /*R23*/
- 0x00ff, 0x00ff, 0x00ff, 0x00ff, /*R27*/
- 0x01f0, 0x0040, 0x0000, 0x0000, /*R31(0x1F)*/
- 0x0000, 0x0000, 0x0031, 0x000b, /*R35*/
- 0x0039, 0x0000, 0x0010, 0x0032, /*R39*/
- 0x0054, 0x0076, 0x0098, 0x0000, /*R43(0x2B)*/
- 0x0000, 0x0000, 0x0000, 0x0000, /*R47*/
- 0x0000, 0x0000, 0x005e, 0x003e, /*R51(0x33)*/
- 0x0000, 0x0000 /*R53*/
+static const struct reg_default wm8580_reg_defaults[] = {
+ { 0, 0x0121 },
+ { 1, 0x017e },
+ { 2, 0x007d },
+ { 3, 0x0014 },
+ { 4, 0x0121 },
+ { 5, 0x017e },
+ { 6, 0x007d },
+ { 7, 0x0194 },
+ { 8, 0x0010 },
+ { 9, 0x0002 },
+ { 10, 0x0002 },
+ { 11, 0x00c2 },
+ { 12, 0x0182 },
+ { 13, 0x0082 },
+ { 14, 0x000a },
+ { 15, 0x0024 },
+ { 16, 0x0009 },
+ { 17, 0x0000 },
+ { 18, 0x00ff },
+ { 19, 0x0000 },
+ { 20, 0x00ff },
+ { 21, 0x00ff },
+ { 22, 0x00ff },
+ { 23, 0x00ff },
+ { 24, 0x00ff },
+ { 25, 0x00ff },
+ { 26, 0x00ff },
+ { 27, 0x00ff },
+ { 28, 0x01f0 },
+ { 29, 0x0040 },
+ { 30, 0x0000 },
+ { 31, 0x0000 },
+ { 32, 0x0000 },
+ { 33, 0x0000 },
+ { 34, 0x0031 },
+ { 35, 0x000b },
+ { 36, 0x0039 },
+ { 37, 0x0000 },
+ { 38, 0x0010 },
+ { 39, 0x0032 },
+ { 40, 0x0054 },
+ { 41, 0x0076 },
+ { 42, 0x0098 },
+ { 43, 0x0000 },
+ { 44, 0x0000 },
+ { 45, 0x0000 },
+ { 46, 0x0000 },
+ { 47, 0x0000 },
+ { 48, 0x0000 },
+ { 49, 0x0000 },
+ { 50, 0x005e },
+ { 51, 0x003e },
+ { 52, 0x0000 },
};
+static bool wm8580_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8580_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
struct pll_state {
unsigned int in;
unsigned int out;
@@ -189,9 +238,8 @@ static const char *wm8580_supply_names[WM8580_NUM_SUPPLIES] = {
/* codec private data */
struct wm8580_priv {
- enum snd_soc_control_type control_type;
+ struct regmap *regmap;
struct regulator_bulk_data supplies[WM8580_NUM_SUPPLIES];
- u16 reg_cache[WM8580_MAX_REGISTER + 1];
struct pll_state a;
struct pll_state b;
int sysclk[2];
@@ -204,17 +252,19 @@ static int wm8580_out_vu(struct snd_kcontrol *kcontrol,
{
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
- struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
- u16 *reg_cache = codec->reg_cache;
+ struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
+ struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
unsigned int reg = mc->reg;
unsigned int reg2 = mc->rreg;
int ret;
- /* Clear the register cache so we write without VU set */
- reg_cache[reg] = 0;
- reg_cache[reg2] = 0;
+ /* Clear the register cache VU so we write without VU set */
+ regcache_cache_only(wm8580->regmap, true);
+ regmap_update_bits(wm8580->regmap, reg, 0x100, 0x000);
+ regmap_update_bits(wm8580->regmap, reg2, 0x100, 0x000);
+ regcache_cache_only(wm8580->regmap, false);
- ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
+ ret = snd_soc_put_volsw(kcontrol, ucontrol);
if (ret < 0)
return ret;
@@ -225,31 +275,19 @@ static int wm8580_out_vu(struct snd_kcontrol *kcontrol,
return 0;
}
-#define SOC_WM8580_OUT_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, \
- xinvert, tlv_array) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
- .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
- SNDRV_CTL_ELEM_ACCESS_READWRITE, \
- .tlv.p = (tlv_array), \
- .info = snd_soc_info_volsw_2r, \
- .get = snd_soc_get_volsw_2r, .put = wm8580_out_vu, \
- .private_value = (unsigned long)&(struct soc_mixer_control) \
- {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
- .max = xmax, .invert = xinvert} }
-
static const struct snd_kcontrol_new wm8580_snd_controls[] = {
-SOC_WM8580_OUT_DOUBLE_R_TLV("DAC1 Playback Volume",
- WM8580_DIGITAL_ATTENUATION_DACL1,
- WM8580_DIGITAL_ATTENUATION_DACR1,
- 0, 0xff, 0, dac_tlv),
-SOC_WM8580_OUT_DOUBLE_R_TLV("DAC2 Playback Volume",
- WM8580_DIGITAL_ATTENUATION_DACL2,
- WM8580_DIGITAL_ATTENUATION_DACR2,
- 0, 0xff, 0, dac_tlv),
-SOC_WM8580_OUT_DOUBLE_R_TLV("DAC3 Playback Volume",
- WM8580_DIGITAL_ATTENUATION_DACL3,
- WM8580_DIGITAL_ATTENUATION_DACR3,
- 0, 0xff, 0, dac_tlv),
+SOC_DOUBLE_R_EXT_TLV("DAC1 Playback Volume",
+ WM8580_DIGITAL_ATTENUATION_DACL1,
+ WM8580_DIGITAL_ATTENUATION_DACR1,
+ 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
+SOC_DOUBLE_R_EXT_TLV("DAC2 Playback Volume",
+ WM8580_DIGITAL_ATTENUATION_DACL2,
+ WM8580_DIGITAL_ATTENUATION_DACR2,
+ 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
+SOC_DOUBLE_R_EXT_TLV("DAC3 Playback Volume",
+ WM8580_DIGITAL_ATTENUATION_DACL3,
+ WM8580_DIGITAL_ATTENUATION_DACR3,
+ 0, 0xff, 0, snd_soc_get_volsw, wm8580_out_vu, dac_tlv),
SOC_SINGLE("DAC1 Deemphasis Switch", WM8580_DAC_CONTROL3, 0, 1, 0),
SOC_SINGLE("DAC2 Deemphasis Switch", WM8580_DAC_CONTROL3, 1, 1, 0),
@@ -286,7 +324,7 @@ SND_SOC_DAPM_INPUT("AINL"),
SND_SOC_DAPM_INPUT("AINR"),
};
-static const struct snd_soc_dapm_route audio_map[] = {
+static const struct snd_soc_dapm_route wm8580_dapm_routes[] = {
{ "VOUT1L", NULL, "DAC1" },
{ "VOUT1R", NULL, "DAC1" },
@@ -300,16 +338,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
{ "ADC", NULL, "AINR" },
};
-static int wm8580_add_widgets(struct snd_soc_codec *codec)
-{
- snd_soc_dapm_new_controls(codec, wm8580_dapm_widgets,
- ARRAY_SIZE(wm8580_dapm_widgets));
-
- snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
-
- return 0;
-}
-
/* PLL divisors */
struct _pll_div {
u32 prescale:1;
@@ -442,8 +470,7 @@ static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
/* Always disable the PLL - it is not safe to leave it running
* while reprogramming it.
*/
- reg = snd_soc_read(codec, WM8580_PWRDN2);
- snd_soc_write(codec, WM8580_PWRDN2, reg | pwr_mask);
+ snd_soc_update_bits(codec, WM8580_PWRDN2, pwr_mask, pwr_mask);
if (!freq_in || !freq_out)
return 0;
@@ -461,8 +488,7 @@ static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
snd_soc_write(codec, WM8580_PLLA4 + offset, reg);
/* All done, turn it on */
- reg = snd_soc_read(codec, WM8580_PWRDN2);
- snd_soc_write(codec, WM8580_PWRDN2, reg & ~pwr_mask);
+ snd_soc_update_bits(codec, WM8580_PWRDN2, pwr_mask, 0);
return 0;
}
@@ -478,8 +504,7 @@ static int wm8580_paif_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 wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
u16 paifa = 0;
u16 paifb = 0;
@@ -491,29 +516,29 @@ static int wm8580_paif_hw_params(struct snd_pcm_substream *substream,
paifa |= 0x8;
break;
case SNDRV_PCM_FORMAT_S20_3LE:
- paifa |= 0x10;
+ paifa |= 0x0;
paifb |= WM8580_AIF_LENGTH_20;
break;
case SNDRV_PCM_FORMAT_S24_LE:
- paifa |= 0x10;
+ paifa |= 0x0;
paifb |= WM8580_AIF_LENGTH_24;
break;
case SNDRV_PCM_FORMAT_S32_LE:
- paifa |= 0x10;
- paifb |= WM8580_AIF_LENGTH_24;
+ paifa |= 0x0;
+ paifb |= WM8580_AIF_LENGTH_32;
break;
default:
return -EINVAL;
}
/* Look up the SYSCLK ratio; accept only exact matches */
- ratio = wm8580->sysclk[dai->id] / params_rate(params);
+ ratio = wm8580->sysclk[dai->driver->id] / params_rate(params);
for (i = 0; i < ARRAY_SIZE(wm8580_sysclk_ratios); i++)
if (ratio == wm8580_sysclk_ratios[i])
break;
if (i == ARRAY_SIZE(wm8580_sysclk_ratios)) {
dev_err(codec->dev, "Invalid clock ratio %d/%d\n",
- wm8580->sysclk[dai->id], params_rate(params));
+ wm8580->sysclk[dai->driver->id], params_rate(params));
return -EINVAL;
}
paifa |= i;
@@ -696,7 +721,7 @@ static int wm8580_set_sysclk(struct snd_soc_dai *dai, int clk_id,
{
struct snd_soc_codec *codec = dai->codec;
struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
- int sel, sel_mask, sel_shift;
+ int ret, sel, sel_mask, sel_shift;
switch (dai->driver->id) {
case WM8580_DAI_PAIFRX:
@@ -710,13 +735,13 @@ static int wm8580_set_sysclk(struct snd_soc_dai *dai, int clk_id,
break;
default:
- BUG_ON("Unknown DAI driver ID\n");
+ WARN(1, "Unknown DAI driver ID\n");
return -EINVAL;
}
switch (clk_id) {
case WM8580_CLKSRC_ADCMCLK:
- if (dai->id != WM8580_DAI_PAIFTX)
+ if (dai->driver->id != WM8580_DAI_PAIFTX)
return -EINVAL;
sel = 0 << sel_shift;
break;
@@ -735,9 +760,13 @@ static int wm8580_set_sysclk(struct snd_soc_dai *dai, int clk_id,
}
/* We really should validate PLL settings but not yet */
- wm8580->sysclk[dai->id] = freq;
+ wm8580->sysclk[dai->driver->id] = freq;
+
+ ret = snd_soc_update_bits(codec, WM8580_CLKSEL, sel_mask, sel);
+ if (ret < 0)
+ return ret;
- return snd_soc_update_bits(codec, WM8580_CLKSEL, sel_mask, sel);
+ return 0;
}
static int wm8580_digital_mute(struct snd_soc_dai *codec_dai, int mute)
@@ -760,39 +789,37 @@ static int wm8580_digital_mute(struct snd_soc_dai *codec_dai, int mute)
static int wm8580_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- u16 reg;
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
- if (codec->bias_level == SND_SOC_BIAS_OFF) {
+ if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
/* Power up and get individual control of the DACs */
- reg = snd_soc_read(codec, WM8580_PWRDN1);
- reg &= ~(WM8580_PWRDN1_PWDN | WM8580_PWRDN1_ALLDACPD);
- snd_soc_write(codec, WM8580_PWRDN1, reg);
-
- /* Make VMID high impedence */
- reg = snd_soc_read(codec, WM8580_ADC_CONTROL1);
- reg &= ~0x100;
- snd_soc_write(codec, WM8580_ADC_CONTROL1, reg);
+ snd_soc_update_bits(codec, WM8580_PWRDN1,
+ WM8580_PWRDN1_PWDN |
+ WM8580_PWRDN1_ALLDACPD, 0);
+
+ /* Make VMID high impedance */
+ snd_soc_update_bits(codec, WM8580_ADC_CONTROL1,
+ 0x100, 0);
}
break;
case SND_SOC_BIAS_OFF:
- reg = snd_soc_read(codec, WM8580_PWRDN1);
- snd_soc_write(codec, WM8580_PWRDN1, reg | WM8580_PWRDN1_PWDN);
+ snd_soc_update_bits(codec, WM8580_PWRDN1,
+ WM8580_PWRDN1_PWDN, WM8580_PWRDN1_PWDN);
break;
}
- codec->bias_level = level;
+ codec->dapm.bias_level = level;
return 0;
}
#define WM8580_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 wm8580_dai_ops_playback = {
+static const struct snd_soc_dai_ops wm8580_dai_ops_playback = {
.set_sysclk = wm8580_set_sysclk,
.hw_params = wm8580_paif_hw_params,
.set_fmt = wm8580_set_paif_dai_fmt,
@@ -801,7 +828,7 @@ static struct snd_soc_dai_ops wm8580_dai_ops_playback = {
.digital_mute = wm8580_digital_mute,
};
-static struct snd_soc_dai_ops wm8580_dai_ops_capture = {
+static const struct snd_soc_dai_ops wm8580_dai_ops_capture = {
.set_sysclk = wm8580_set_sysclk,
.hw_params = wm8580_paif_hw_params,
.set_fmt = wm8580_set_paif_dai_fmt,
@@ -839,23 +866,7 @@ static struct snd_soc_dai_driver wm8580_dai[] = {
static int wm8580_probe(struct snd_soc_codec *codec)
{
struct wm8580_priv *wm8580 = snd_soc_codec_get_drvdata(codec);
- int ret = 0,i;
-
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8580->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(wm8580->supplies); i++)
- wm8580->supplies[i].supply = wm8580_supply_names[i];
-
- ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8580->supplies),
- wm8580->supplies);
- if (ret != 0) {
- dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
- return ret;
- }
+ int ret = 0;
ret = regulator_bulk_enable(ARRAY_SIZE(wm8580->supplies),
wm8580->supplies);
@@ -873,16 +884,11 @@ static int wm8580_probe(struct snd_soc_codec *codec)
wm8580_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
- snd_soc_add_controls(codec, wm8580_snd_controls,
- ARRAY_SIZE(wm8580_snd_controls));
- wm8580_add_widgets(codec);
-
return 0;
err_regulator_enable:
regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
err_regulator_get:
- regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
return ret;
}
@@ -894,7 +900,6 @@ static int wm8580_remove(struct snd_soc_codec *codec)
wm8580_set_bias_level(codec, SND_SOC_BIAS_OFF);
regulator_bulk_disable(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
- regulator_bulk_free(ARRAY_SIZE(wm8580->supplies), wm8580->supplies);
return 0;
}
@@ -903,36 +908,69 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8580 = {
.probe = wm8580_probe,
.remove = wm8580_remove,
.set_bias_level = wm8580_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(wm8580_reg),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = &wm8580_reg,
+
+ .controls = wm8580_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8580_snd_controls),
+ .dapm_widgets = wm8580_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8580_dapm_widgets),
+ .dapm_routes = wm8580_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8580_dapm_routes),
+};
+
+static const struct of_device_id wm8580_of_match[] = {
+ { .compatible = "wlf,wm8580" },
+ { },
};
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static const struct regmap_config wm8580_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
+ .max_register = WM8580_MAX_REGISTER,
+
+ .reg_defaults = wm8580_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8580_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = wm8580_volatile,
+};
+
+#if IS_ENABLED(CONFIG_I2C)
static int wm8580_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct wm8580_priv *wm8580;
- int ret;
+ int ret, i;
- wm8580 = kzalloc(sizeof(struct wm8580_priv), GFP_KERNEL);
+ wm8580 = devm_kzalloc(&i2c->dev, sizeof(struct wm8580_priv),
+ GFP_KERNEL);
if (wm8580 == NULL)
return -ENOMEM;
+ wm8580->regmap = devm_regmap_init_i2c(i2c, &wm8580_regmap);
+ if (IS_ERR(wm8580->regmap))
+ return PTR_ERR(wm8580->regmap);
+
+ for (i = 0; i < ARRAY_SIZE(wm8580->supplies); i++)
+ wm8580->supplies[i].supply = wm8580_supply_names[i];
+
+ ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8580->supplies),
+ wm8580->supplies);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
+ return ret;
+ }
+
i2c_set_clientdata(i2c, wm8580);
- wm8580->control_type = SND_SOC_I2C;
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8580, wm8580_dai, ARRAY_SIZE(wm8580_dai));
- if (ret < 0)
- kfree(wm8580);
+
return ret;
}
static int wm8580_i2c_remove(struct i2c_client *client)
{
snd_soc_unregister_codec(&client->dev);
- kfree(i2c_get_clientdata(client));
return 0;
}
@@ -944,8 +982,9 @@ MODULE_DEVICE_TABLE(i2c, wm8580_i2c_id);
static struct i2c_driver wm8580_i2c_driver = {
.driver = {
- .name = "wm8580-codec",
+ .name = "wm8580",
.owner = THIS_MODULE,
+ .of_match_table = wm8580_of_match,
},
.probe = wm8580_i2c_probe,
.remove = wm8580_i2c_remove,
@@ -957,7 +996,7 @@ static int __init wm8580_modinit(void)
{
int ret = 0;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
ret = i2c_add_driver(&wm8580_i2c_driver);
if (ret != 0) {
pr_err("Failed to register WM8580 I2C driver: %d\n", ret);
@@ -970,7 +1009,7 @@ module_init(wm8580_modinit);
static void __exit wm8580_exit(void)
{
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
i2c_del_driver(&wm8580_i2c_driver);
#endif
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-03 18:38:44 +0000