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Diffstat (limited to 'sound/soc/codecs/wm8971.c')
-rw-r--r--sound/soc/codecs/wm8971.c238
1 files changed, 90 insertions, 148 deletions
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c
index 67aba78a7ca5..46aa556b44fa 100644
--- a/sound/soc/codecs/wm8971.c
+++ b/sound/soc/codecs/wm8971.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* wm8971.c -- WM8971 ALSA SoC Audio driver
*
@@ -6,11 +7,6 @@
* Author: Kenneth Kiraly <kiraly@lab126.com>
*
* Based on wm8753.c by Liam Girdwood
- *
- * 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
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
*/
#include <linux/module.h>
@@ -31,11 +27,11 @@
#define WM8971_REG_COUNT 43
-static struct workqueue_struct *wm8971_workq = NULL;
-
/* codec private data */
struct wm8971_priv {
unsigned int sysclk;
+ struct delayed_work charge_work;
+ struct regmap *regmap;
};
/*
@@ -89,7 +85,7 @@ static const struct reg_default wm8971_reg_defaults[] = {
{ 42, 0x0079 },
};
-#define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0)
+#define wm8971_reset(c) snd_soc_component_write(c, WM8971_RESET, 0)
/* WM8971 Controls */
static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" };
@@ -433,8 +429,8 @@ static int get_coeff(int mclk, int rate)
static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
- struct snd_soc_codec *codec = codec_dai->codec;
- struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_component *component = codec_dai->component;
+ struct wm8971_priv *wm8971 = snd_soc_component_get_drvdata(component);
switch (freq) {
case 11289600:
@@ -451,15 +447,15 @@ static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai,
static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
- struct snd_soc_codec *codec = codec_dai->codec;
+ struct snd_soc_component *component = codec_dai->component;
u16 iface = 0;
/* set master/slave audio interface */
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBM_CFM:
+ case SND_SOC_DAIFMT_CBP_CFP:
iface = 0x0040;
break;
- case SND_SOC_DAIFMT_CBS_CFS:
+ case SND_SOC_DAIFMT_CBC_CFC:
break;
default:
return -EINVAL;
@@ -502,7 +498,7 @@ static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai,
return -EINVAL;
}
- snd_soc_write(codec, WM8971_IFACE, iface);
+ snd_soc_component_write(component, WM8971_IFACE, iface);
return 0;
}
@@ -510,72 +506,91 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct snd_soc_codec *codec = dai->codec;
- struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec);
- u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3;
- u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0;
+ struct snd_soc_component *component = dai->component;
+ struct wm8971_priv *wm8971 = snd_soc_component_get_drvdata(component);
+ u16 iface = snd_soc_component_read(component, WM8971_IFACE) & 0x1f3;
+ u16 srate = snd_soc_component_read(component, WM8971_SRATE) & 0x1c0;
int coeff = get_coeff(wm8971->sysclk, params_rate(params));
/* bit size */
- switch (params_format(params)) {
- case SNDRV_PCM_FORMAT_S16_LE:
+ switch (params_width(params)) {
+ case 16:
break;
- case SNDRV_PCM_FORMAT_S20_3LE:
+ case 20:
iface |= 0x0004;
break;
- case SNDRV_PCM_FORMAT_S24_LE:
+ case 24:
iface |= 0x0008;
break;
- case SNDRV_PCM_FORMAT_S32_LE:
+ case 32:
iface |= 0x000c;
break;
}
/* set iface & srate */
- snd_soc_write(codec, WM8971_IFACE, iface);
+ snd_soc_component_write(component, WM8971_IFACE, iface);
if (coeff >= 0)
- snd_soc_write(codec, WM8971_SRATE, srate |
+ snd_soc_component_write(component, WM8971_SRATE, srate |
(coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
return 0;
}
-static int wm8971_mute(struct snd_soc_dai *dai, int mute)
+static int wm8971_mute(struct snd_soc_dai *dai, int mute, int direction)
{
- struct snd_soc_codec *codec = dai->codec;
- u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7;
+ struct snd_soc_component *component = dai->component;
+ u16 mute_reg = snd_soc_component_read(component, WM8971_ADCDAC) & 0xfff7;
if (mute)
- snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8);
+ snd_soc_component_write(component, WM8971_ADCDAC, mute_reg | 0x8);
else
- snd_soc_write(codec, WM8971_ADCDAC, mute_reg);
+ snd_soc_component_write(component, WM8971_ADCDAC, mute_reg);
return 0;
}
-static int wm8971_set_bias_level(struct snd_soc_codec *codec,
+static void wm8971_charge_work(struct work_struct *work)
+{
+ struct wm8971_priv *wm8971 =
+ container_of(work, struct wm8971_priv, charge_work.work);
+
+ /* Set to 500k */
+ regmap_update_bits(wm8971->regmap, WM8971_PWR1, 0x0180, 0x0100);
+}
+
+static int wm8971_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
- u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
+ struct wm8971_priv *wm8971 = snd_soc_component_get_drvdata(component);
+ struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
+ u16 pwr_reg = snd_soc_component_read(component, WM8971_PWR1) & 0xfe3e;
switch (level) {
case SND_SOC_BIAS_ON:
/* set vmid to 50k and unmute dac */
- snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1);
+ snd_soc_component_write(component, WM8971_PWR1, pwr_reg | 0x00c1);
break;
case SND_SOC_BIAS_PREPARE:
+ /* Wait until fully charged */
+ flush_delayed_work(&wm8971->charge_work);
break;
case SND_SOC_BIAS_STANDBY:
- if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
- snd_soc_cache_sync(codec);
+ if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_OFF) {
+ snd_soc_component_cache_sync(component);
+ /* charge output caps - set vmid to 5k for quick power up */
+ snd_soc_component_write(component, WM8971_PWR1, pwr_reg | 0x01c0);
+ queue_delayed_work(system_power_efficient_wq,
+ &wm8971->charge_work, msecs_to_jiffies(1000));
+ } else {
+ /* mute dac and set vmid to 500k, enable VREF */
+ snd_soc_component_write(component, WM8971_PWR1, pwr_reg | 0x0140);
+ }
- /* mute dac and set vmid to 500k, enable VREF */
- snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140);
break;
case SND_SOC_BIAS_OFF:
- snd_soc_write(codec, WM8971_PWR1, 0x0001);
+ cancel_delayed_work_sync(&wm8971->charge_work);
+ snd_soc_component_write(component, WM8971_PWR1, 0x0001);
break;
}
- codec->dapm.bias_level = level;
return 0;
}
@@ -588,9 +603,10 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec,
static const struct snd_soc_dai_ops wm8971_dai_ops = {
.hw_params = wm8971_pcm_hw_params,
- .digital_mute = wm8971_mute,
+ .mute_stream = wm8971_mute,
.set_fmt = wm8971_set_dai_fmt,
.set_sysclk = wm8971_set_dai_sysclk,
+ .no_capture_mute = 1,
};
static struct snd_soc_dai_driver wm8971_dai = {
@@ -610,101 +626,40 @@ static struct snd_soc_dai_driver wm8971_dai = {
.ops = &wm8971_dai_ops,
};
-static void wm8971_work(struct work_struct *work)
-{
- struct snd_soc_dapm_context *dapm =
- container_of(work, struct snd_soc_dapm_context,
- delayed_work.work);
- struct snd_soc_codec *codec = dapm->codec;
- wm8971_set_bias_level(codec, codec->dapm.bias_level);
-}
-
-static int wm8971_suspend(struct snd_soc_codec *codec)
-{
- wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF);
- return 0;
-}
-
-static int wm8971_resume(struct snd_soc_codec *codec)
-{
- u16 reg;
-
- wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
- /* charge wm8971 caps */
- if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
- reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
- snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
- codec->dapm.bias_level = SND_SOC_BIAS_ON;
- queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work,
- msecs_to_jiffies(1000));
- }
-
- return 0;
-}
-
-static int wm8971_probe(struct snd_soc_codec *codec)
+static int wm8971_probe(struct snd_soc_component *component)
{
- int ret = 0;
- u16 reg;
+ struct wm8971_priv *wm8971 = snd_soc_component_get_drvdata(component);
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
- if (ret < 0) {
- printk(KERN_ERR "wm8971: failed to set cache I/O: %d\n", ret);
- return ret;
- }
+ INIT_DELAYED_WORK(&wm8971->charge_work, wm8971_charge_work);
- INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work);
- wm8971_workq = create_workqueue("wm8971");
- if (wm8971_workq == NULL)
- return -ENOMEM;
-
- wm8971_reset(codec);
-
- /* charge output caps - set vmid to 5k for quick power up */
- reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e;
- snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0);
- codec->dapm.bias_level = SND_SOC_BIAS_STANDBY;
- queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work,
- msecs_to_jiffies(1000));
+ wm8971_reset(component);
/* set the update bits */
- snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100);
- snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100);
- snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100);
- snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100);
- snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100);
- snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100);
- snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100);
- snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100);
-
- return ret;
-}
+ snd_soc_component_update_bits(component, WM8971_LDAC, 0x0100, 0x0100);
+ snd_soc_component_update_bits(component, WM8971_RDAC, 0x0100, 0x0100);
+ snd_soc_component_update_bits(component, WM8971_LOUT1V, 0x0100, 0x0100);
+ snd_soc_component_update_bits(component, WM8971_ROUT1V, 0x0100, 0x0100);
+ snd_soc_component_update_bits(component, WM8971_LOUT2V, 0x0100, 0x0100);
+ snd_soc_component_update_bits(component, WM8971_ROUT2V, 0x0100, 0x0100);
+ snd_soc_component_update_bits(component, WM8971_LINVOL, 0x0100, 0x0100);
+ snd_soc_component_update_bits(component, WM8971_RINVOL, 0x0100, 0x0100);
-
-/* power down chip */
-static int wm8971_remove(struct snd_soc_codec *codec)
-{
- wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF);
-
- if (wm8971_workq)
- destroy_workqueue(wm8971_workq);
return 0;
}
-static struct snd_soc_codec_driver soc_codec_dev_wm8971 = {
- .probe = wm8971_probe,
- .remove = wm8971_remove,
- .suspend = wm8971_suspend,
- .resume = wm8971_resume,
- .set_bias_level = wm8971_set_bias_level,
-
- .controls = wm8971_snd_controls,
- .num_controls = ARRAY_SIZE(wm8971_snd_controls),
- .dapm_widgets = wm8971_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets),
- .dapm_routes = wm8971_dapm_routes,
- .num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes),
+static const struct snd_soc_component_driver soc_component_dev_wm8971 = {
+ .probe = wm8971_probe,
+ .set_bias_level = wm8971_set_bias_level,
+ .controls = wm8971_snd_controls,
+ .num_controls = ARRAY_SIZE(wm8971_snd_controls),
+ .dapm_widgets = wm8971_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets),
+ .dapm_routes = wm8971_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes),
+ .suspend_bias_off = 1,
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
};
static const struct regmap_config wm8971_regmap = {
@@ -714,41 +669,30 @@ static const struct regmap_config wm8971_regmap = {
.reg_defaults = wm8971_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(wm8971_reg_defaults),
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
};
-static int wm8971_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int wm8971_i2c_probe(struct i2c_client *i2c)
{
struct wm8971_priv *wm8971;
- struct regmap *regmap;
- int ret;
wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv),
GFP_KERNEL);
if (wm8971 == NULL)
return -ENOMEM;
- regmap = devm_regmap_init_i2c(i2c, &wm8971_regmap);
- if (IS_ERR(regmap))
- return PTR_ERR(regmap);
+ wm8971->regmap = devm_regmap_init_i2c(i2c, &wm8971_regmap);
+ if (IS_ERR(wm8971->regmap))
+ return PTR_ERR(wm8971->regmap);
i2c_set_clientdata(i2c, wm8971);
- ret = snd_soc_register_codec(&i2c->dev,
- &soc_codec_dev_wm8971, &wm8971_dai, 1);
-
- return ret;
-}
-
-static int wm8971_i2c_remove(struct i2c_client *client)
-{
- snd_soc_unregister_codec(&client->dev);
- return 0;
+ return devm_snd_soc_register_component(&i2c->dev,
+ &soc_component_dev_wm8971, &wm8971_dai, 1);
}
static const struct i2c_device_id wm8971_i2c_id[] = {
- { "wm8971", 0 },
+ { "wm8971" },
{ }
};
MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id);
@@ -756,10 +700,8 @@ MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id);
static struct i2c_driver wm8971_i2c_driver = {
.driver = {
.name = "wm8971",
- .owner = THIS_MODULE,
},
- .probe = wm8971_i2c_probe,
- .remove = wm8971_i2c_remove,
+ .probe = wm8971_i2c_probe,
.id_table = wm8971_i2c_id,
};
generated by cgit (git 2.34.1) at 2025-12-25 17:41:57 +0000