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Diffstat (limited to 'sound/soc/codecs/cs4271.c')
-rw-r--r--sound/soc/codecs/cs4271.c224
1 files changed, 109 insertions, 115 deletions
diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index d8824773dc29..77dfc83a3c01 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -1,31 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* CS4271 ASoC codec driver
*
* Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
*
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
* This driver support CS4271 codec being master or slave, working
* in control port mode, connected either via SPI or I2C.
* The data format accepted is I2S or left-justified.
* DAPM support not implemented.
*/
+#include <linux/clk.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_gpio.h>
#include <linux/regulator/consumer.h>
#include <sound/pcm.h>
#include <sound/soc.h>
@@ -170,12 +160,11 @@ struct cs4271_private {
/* Current sample rate for de-emphasis control */
int rate;
/* GPIO driving Reset pin, if any */
- int gpio_nreset;
- /* GPIO that disable serial bus, if any */
- int gpio_disable;
+ struct gpio_desc *reset;
/* enable soft reset workaround */
bool enable_soft_reset;
struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
+ struct clk *clk;
};
static const struct snd_soc_dapm_widget cs4271_dapm_widgets[] = {
@@ -206,8 +195,8 @@ static const struct snd_soc_dapm_route cs4271_dapm_routes[] = {
static int cs4271_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 cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_component *component = codec_dai->component;
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
cs4271->mclk = freq;
return 0;
@@ -216,21 +205,21 @@ static int cs4271_set_dai_sysclk(struct snd_soc_dai *codec_dai,
static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int format)
{
- struct snd_soc_codec *codec = codec_dai->codec;
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_component *component = codec_dai->component;
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
unsigned int val = 0;
int ret;
switch (format & SND_SOC_DAIFMT_MASTER_MASK) {
- case SND_SOC_DAIFMT_CBS_CFS:
- cs4271->master = 0;
+ case SND_SOC_DAIFMT_CBC_CFC:
+ cs4271->master = false;
break;
- case SND_SOC_DAIFMT_CBM_CFM:
- cs4271->master = 1;
+ case SND_SOC_DAIFMT_CBP_CFP:
+ cs4271->master = true;
val |= CS4271_MODE1_MASTER;
break;
default:
- dev_err(codec->dev, "Invalid DAI format\n");
+ dev_err(component->dev, "Invalid DAI format\n");
return -EINVAL;
}
@@ -250,7 +239,7 @@ static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai,
return ret;
break;
default:
- dev_err(codec->dev, "Invalid DAI format\n");
+ dev_err(component->dev, "Invalid DAI format\n");
return -EINVAL;
}
@@ -263,9 +252,9 @@ static int cs4271_set_dai_fmt(struct snd_soc_dai *codec_dai,
static int cs4271_deemph[] = {0, 44100, 48000, 32000};
-static int cs4271_set_deemph(struct snd_soc_codec *codec)
+static int cs4271_set_deemph(struct snd_soc_component *component)
{
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
int i, ret;
int val = CS4271_DACCTL_DEM_DIS;
@@ -289,8 +278,8 @@ 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_soc_kcontrol_codec(kcontrol);
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0] = cs4271->deemph;
return 0;
@@ -299,11 +288,11 @@ 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_soc_kcontrol_codec(kcontrol);
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
cs4271->deemph = ucontrol->value.integer.value[0];
- return cs4271_set_deemph(codec);
+ return cs4271_set_deemph(component);
}
struct cs4271_clk_cfg {
@@ -343,14 +332,14 @@ static struct cs4271_clk_cfg cs4271_clk_tab[] = {
{0, CS4271_MODE1_MODE_4X, 256, CS4271_MODE1_DIV_2},
};
-#define CS4171_NR_RATIOS ARRAY_SIZE(cs4271_clk_tab)
+#define CS4271_NR_RATIOS ARRAY_SIZE(cs4271_clk_tab)
static int cs4271_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 cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct snd_soc_component *component = dai->component;
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
int i, ret;
unsigned int ratio, val;
@@ -365,9 +354,9 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
*/
if ((substream->stream == SNDRV_PCM_STREAM_PLAYBACK &&
- !dai->capture_active) ||
+ !snd_soc_dai_stream_active(dai, SNDRV_PCM_STREAM_CAPTURE)) ||
(substream->stream == SNDRV_PCM_STREAM_CAPTURE &&
- !dai->playback_active)) {
+ !snd_soc_dai_stream_active(dai, SNDRV_PCM_STREAM_PLAYBACK))) {
ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
CS4271_MODE2_PDN,
CS4271_MODE2_PDN);
@@ -392,14 +381,14 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
val = CS4271_MODE1_MODE_4X;
ratio = cs4271->mclk / cs4271->rate;
- for (i = 0; i < CS4171_NR_RATIOS; i++)
+ for (i = 0; i < CS4271_NR_RATIOS; i++)
if ((cs4271_clk_tab[i].master == cs4271->master) &&
(cs4271_clk_tab[i].speed_mode == val) &&
(cs4271_clk_tab[i].ratio == ratio))
break;
- if (i == CS4171_NR_RATIOS) {
- dev_err(codec->dev, "Invalid sample rate\n");
+ if (i == CS4271_NR_RATIOS) {
+ dev_err(component->dev, "Invalid sample rate\n");
return -EINVAL;
}
@@ -410,13 +399,13 @@ static int cs4271_hw_params(struct snd_pcm_substream *substream,
if (ret < 0)
return ret;
- return cs4271_set_deemph(codec);
+ return cs4271_set_deemph(component);
}
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);
+ struct snd_soc_component *component = dai->component;
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
int ret;
int val_a = 0;
int val_b = 0;
@@ -490,28 +479,26 @@ static struct snd_soc_dai_driver cs4271_dai = {
.formats = CS4271_PCM_FORMATS,
},
.ops = &cs4271_dai_ops,
- .symmetric_rates = 1,
+ .symmetric_rate = 1,
};
-static int cs4271_reset(struct snd_soc_codec *codec)
+static int cs4271_reset(struct snd_soc_component *component)
{
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
- if (gpio_is_valid(cs4271->gpio_nreset)) {
- gpio_direction_output(cs4271->gpio_nreset, 0);
- mdelay(1);
- gpio_set_value(cs4271->gpio_nreset, 1);
- mdelay(1);
- }
+ gpiod_direction_output(cs4271->reset, 1);
+ mdelay(1);
+ gpiod_set_value(cs4271->reset, 0);
+ mdelay(1);
return 0;
}
#ifdef CONFIG_PM
-static int cs4271_soc_suspend(struct snd_soc_codec *codec)
+static int cs4271_soc_suspend(struct snd_soc_component *component)
{
int ret;
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
/* Set power-down bit */
ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
@@ -520,25 +507,32 @@ static int cs4271_soc_suspend(struct snd_soc_codec *codec)
return ret;
regcache_mark_dirty(cs4271->regmap);
+ clk_disable_unprepare(cs4271->clk);
regulator_bulk_disable(ARRAY_SIZE(cs4271->supplies), cs4271->supplies);
return 0;
}
-static int cs4271_soc_resume(struct snd_soc_codec *codec)
+static int cs4271_soc_resume(struct snd_soc_component *component)
{
int ret;
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
ret = regulator_bulk_enable(ARRAY_SIZE(cs4271->supplies),
cs4271->supplies);
if (ret < 0) {
- dev_err(codec->dev, "Failed to enable regulators: %d\n", ret);
+ dev_err(component->dev, "Failed to enable regulators: %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(cs4271->clk);
+ if (ret) {
+ dev_err(component->dev, "Failed to enable clk: %d\n", ret);
return ret;
}
/* Do a proper reset after power up */
- cs4271_reset(codec);
+ cs4271_reset(component);
/* Restore codec state */
ret = regcache_sync(cs4271->regmap);
@@ -567,29 +561,22 @@ MODULE_DEVICE_TABLE(of, cs4271_dt_ids);
EXPORT_SYMBOL_GPL(cs4271_dt_ids);
#endif
-static int cs4271_codec_probe(struct snd_soc_codec *codec)
+static int cs4271_component_probe(struct snd_soc_component *component)
{
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
- struct cs4271_platform_data *cs4271plat = codec->dev->platform_data;
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
+ struct cs4271_platform_data *cs4271plat = component->dev->platform_data;
int ret;
- bool amutec_eq_bmutec = false;
+ bool amutec_eq_bmutec;
-#ifdef CONFIG_OF
- if (of_match_device(cs4271_dt_ids, codec->dev)) {
- if (of_get_property(codec->dev->of_node,
- "cirrus,amutec-eq-bmutec", NULL))
- amutec_eq_bmutec = true;
-
- if (of_get_property(codec->dev->of_node,
- "cirrus,enable-soft-reset", NULL))
- cs4271->enable_soft_reset = true;
- }
-#endif
+ amutec_eq_bmutec = of_property_read_bool(component->dev->of_node,
+ "cirrus,amutec-eq-bmutec");
+ cs4271->enable_soft_reset = of_property_read_bool(component->dev->of_node,
+ "cirrus,enable-soft-reset");
ret = regulator_bulk_enable(ARRAY_SIZE(cs4271->supplies),
cs4271->supplies);
if (ret < 0) {
- dev_err(codec->dev, "Failed to enable regulators: %d\n", ret);
+ dev_err(component->dev, "Failed to enable regulators: %d\n", ret);
return ret;
}
@@ -598,22 +585,30 @@ static int cs4271_codec_probe(struct snd_soc_codec *codec)
cs4271->enable_soft_reset = cs4271plat->enable_soft_reset;
}
+ ret = clk_prepare_enable(cs4271->clk);
+ if (ret) {
+ dev_err(component->dev, "Failed to enable clk: %d\n", ret);
+ goto err_disable_regulators;
+ }
+
/* Reset codec */
- cs4271_reset(codec);
+ cs4271_reset(component);
ret = regcache_sync(cs4271->regmap);
if (ret < 0)
- return ret;
+ goto err_disable_clk;
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;
+ goto err_disable_clk;
+
ret = regmap_update_bits(cs4271->regmap, CS4271_MODE2,
CS4271_MODE2_PDN, 0);
if (ret < 0)
- return ret;
+ goto err_disable_clk;
+
/* Power-up sequence requires 85 uS */
udelay(85);
@@ -623,42 +618,45 @@ static int cs4271_codec_probe(struct snd_soc_codec *codec)
CS4271_MODE2_MUTECAEQUB);
return 0;
+
+err_disable_clk:
+ clk_disable_unprepare(cs4271->clk);
+err_disable_regulators:
+ regulator_bulk_disable(ARRAY_SIZE(cs4271->supplies), cs4271->supplies);
+ return ret;
}
-static int cs4271_codec_remove(struct snd_soc_codec *codec)
+static void cs4271_component_remove(struct snd_soc_component *component)
{
- struct cs4271_private *cs4271 = snd_soc_codec_get_drvdata(codec);
+ struct cs4271_private *cs4271 = snd_soc_component_get_drvdata(component);
- if (gpio_is_valid(cs4271->gpio_nreset))
- /* Set codec to the reset state */
- gpio_set_value(cs4271->gpio_nreset, 0);
+ /* Set codec to the reset state */
+ gpiod_set_value(cs4271->reset, 1);
regcache_mark_dirty(cs4271->regmap);
regulator_bulk_disable(ARRAY_SIZE(cs4271->supplies), cs4271->supplies);
-
- return 0;
+ clk_disable_unprepare(cs4271->clk);
};
-static struct snd_soc_codec_driver soc_codec_dev_cs4271 = {
- .probe = cs4271_codec_probe,
- .remove = cs4271_codec_remove,
+static const struct snd_soc_component_driver soc_component_dev_cs4271 = {
+ .probe = cs4271_component_probe,
+ .remove = cs4271_component_remove,
.suspend = cs4271_soc_suspend,
.resume = cs4271_soc_resume,
-
- .component_driver = {
- .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),
- },
+ .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),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
};
static int cs4271_common_probe(struct device *dev,
struct cs4271_private **c)
{
- struct cs4271_platform_data *cs4271plat = dev->platform_data;
struct cs4271_private *cs4271;
int i, ret;
@@ -666,19 +664,15 @@ static int cs4271_common_probe(struct device *dev,
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;
+ cs4271->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_ASIS);
+ if (IS_ERR(cs4271->reset))
+ return dev_err_probe(dev, PTR_ERR(cs4271->reset),
+ "error retrieving RESET GPIO\n");
+ gpiod_set_consumer_name(cs4271->reset, "CS4271 Reset");
- if (gpio_is_valid(cs4271->gpio_nreset)) {
- ret = devm_gpio_request(dev, cs4271->gpio_nreset,
- "CS4271 Reset");
- if (ret < 0)
- return ret;
- }
+ cs4271->clk = devm_clk_get_optional(dev, "mclk");
+ if (IS_ERR(cs4271->clk))
+ return dev_err_probe(dev, PTR_ERR(cs4271->clk), "Failed to get mclk\n");
for (i = 0; i < ARRAY_SIZE(supply_names); i++)
cs4271->supplies[i].supply = supply_names[i];
@@ -700,8 +694,8 @@ const struct regmap_config cs4271_regmap_config = {
.reg_defaults = cs4271_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(cs4271_reg_defaults),
- .cache_type = REGCACHE_RBTREE,
-
+ .cache_type = REGCACHE_FLAT,
+ .val_bits = 8,
.volatile_reg = cs4271_volatile_reg,
};
EXPORT_SYMBOL_GPL(cs4271_regmap_config);
@@ -721,8 +715,8 @@ int cs4271_probe(struct device *dev, struct regmap *regmap)
dev_set_drvdata(dev, cs4271);
cs4271->regmap = regmap;
- return snd_soc_register_codec(dev, &soc_codec_dev_cs4271, &cs4271_dai,
- 1);
+ return devm_snd_soc_register_component(dev, &soc_component_dev_cs4271,
+ &cs4271_dai, 1);
}
EXPORT_SYMBOL_GPL(cs4271_probe);
generated by cgit (git 2.34.1) at 2025-12-25 02:48:35 +0000