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Diffstat (limited to 'sound/soc/codecs/tlv320aic31xx.c')
-rw-r--r--sound/soc/codecs/tlv320aic31xx.c310
1 files changed, 160 insertions, 150 deletions
diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index e2862372c26e..858cb8be445f 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1,22 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
/*
- * ALSA SoC TLV320AIC31XX codec driver
+ * ALSA SoC TLV320AIC31xx CODEC Driver
*
- * Copyright (C) 2014 Texas Instruments, Inc.
- *
- * Author: Jyri Sarha <jsarha@ti.com>
+ * Copyright (C) 2014-2017 Texas Instruments Incorporated - http://www.ti.com/
+ * Jyri Sarha <jsarha@ti.com>
*
* Based on ground work by: Ajit Kulkarni <x0175765@ti.com>
*
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED AS IS AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * The TLV320AIC31xx series of audio codec is a low-power, highly integrated
- * high performance codec which provides a stereo DAC, a mono ADC,
+ * The TLV320AIC31xx series of audio codecs are low-power, highly integrated
+ * high performance codecs which provides a stereo DAC, a mono ADC,
* and mono/stereo Class-D speaker driver.
*/
@@ -26,7 +18,7 @@
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/regulator/consumer.h>
#include <linux/acpi.h>
#include <linux/of.h>
@@ -144,8 +136,7 @@ static const struct regmap_config aic31xx_i2c_regmap = {
.max_register = 12 * 128,
};
-#define AIC31XX_NUM_SUPPLIES 6
-static const char * const aic31xx_supply_names[AIC31XX_NUM_SUPPLIES] = {
+static const char * const aic31xx_supply_names[] = {
"HPVDD",
"SPRVDD",
"SPLVDD",
@@ -154,6 +145,8 @@ static const char * const aic31xx_supply_names[AIC31XX_NUM_SUPPLIES] = {
"DVDD",
};
+#define AIC31XX_NUM_SUPPLIES ARRAY_SIZE(aic31xx_supply_names)
+
struct aic31xx_disable_nb {
struct notifier_block nb;
struct aic31xx_priv *aic31xx;
@@ -164,6 +157,9 @@ struct aic31xx_priv {
u8 i2c_regs_status;
struct device *dev;
struct regmap *regmap;
+ enum aic31xx_type codec_type;
+ struct gpio_desc *gpio_reset;
+ int micbias_vg;
struct aic31xx_pdata pdata;
struct regulator_bulk_data supplies[AIC31XX_NUM_SUPPLIES];
struct aic31xx_disable_nb disable_nb[AIC31XX_NUM_SUPPLIES];
@@ -185,7 +181,7 @@ struct aic31xx_rate_divs {
u8 madc;
};
-/* ADC dividers can be disabled by cofiguring them to 0 */
+/* ADC dividers can be disabled by configuring them to 0 */
static const struct aic31xx_rate_divs aic31xx_divs[] = {
/* mclk/p rate pll: j d dosr ndac mdac aors nadc madc */
/* 8k rate */
@@ -456,7 +452,7 @@ static int mic_bias_event(struct snd_soc_dapm_widget *w,
/* change mic bias voltage to user defined */
snd_soc_update_bits(codec, AIC31XX_MICBIAS,
AIC31XX_MICBIAS_MASK,
- aic31xx->pdata.micbias_vg <<
+ aic31xx->micbias_vg <<
AIC31XX_MICBIAS_SHIFT);
dev_dbg(codec->dev, "%s: turned on\n", __func__);
break;
@@ -679,14 +675,14 @@ static int aic31xx_add_controls(struct snd_soc_codec *codec)
int ret = 0;
struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
- if (!(aic31xx->pdata.codec_type & DAC31XX_BIT))
+ if (!(aic31xx->codec_type & DAC31XX_BIT))
ret = snd_soc_add_codec_controls(
codec, aic31xx_snd_controls,
ARRAY_SIZE(aic31xx_snd_controls));
if (ret)
return ret;
- if (aic31xx->pdata.codec_type & AIC31XX_STEREO_CLASS_D_BIT)
+ if (aic31xx->codec_type & AIC31XX_STEREO_CLASS_D_BIT)
ret = snd_soc_add_codec_controls(
codec, aic311x_snd_controls,
ARRAY_SIZE(aic311x_snd_controls));
@@ -704,7 +700,7 @@ static int aic31xx_add_widgets(struct snd_soc_codec *codec)
struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
int ret = 0;
- if (aic31xx->pdata.codec_type & DAC31XX_BIT) {
+ if (aic31xx->codec_type & DAC31XX_BIT) {
ret = snd_soc_dapm_new_controls(
dapm, dac31xx_dapm_widgets,
ARRAY_SIZE(dac31xx_dapm_widgets));
@@ -728,7 +724,7 @@ static int aic31xx_add_widgets(struct snd_soc_codec *codec)
return ret;
}
- if (aic31xx->pdata.codec_type & AIC31XX_STEREO_CLASS_D_BIT) {
+ if (aic31xx->codec_type & AIC31XX_STEREO_CLASS_D_BIT) {
ret = snd_soc_dapm_new_controls(
dapm, aic311x_dapm_widgets,
ARRAY_SIZE(aic311x_dapm_widgets));
@@ -760,11 +756,17 @@ static int aic31xx_setup_pll(struct snd_soc_codec *codec,
{
struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
int bclk_score = snd_soc_params_to_frame_size(params);
- int mclk_p = aic31xx->sysclk / aic31xx->p_div;
+ int mclk_p;
int bclk_n = 0;
int match = -1;
int i;
+ if (!aic31xx->sysclk || !aic31xx->p_div) {
+ dev_err(codec->dev, "Master clock not supplied\n");
+ return -EINVAL;
+ }
+ mclk_p = aic31xx->sysclk / aic31xx->p_div;
+
/* Use PLL as CODEC_CLKIN and DAC_CLK as BDIV_CLKIN */
snd_soc_update_bits(codec, AIC31XX_CLKMUX,
AIC31XX_CODEC_CLKIN_MASK, AIC31XX_CODEC_CLKIN_PLL);
@@ -840,11 +842,17 @@ static int aic31xx_setup_pll(struct snd_soc_codec *codec,
dev_dbg(codec->dev,
"pll %d.%04d/%d dosr %d n %d m %d aosr %d n %d m %d bclk_n %d\n",
- aic31xx_divs[i].pll_j, aic31xx_divs[i].pll_d,
- aic31xx->p_div, aic31xx_divs[i].dosr,
- aic31xx_divs[i].ndac, aic31xx_divs[i].mdac,
- aic31xx_divs[i].aosr, aic31xx_divs[i].nadc,
- aic31xx_divs[i].madc, bclk_n);
+ aic31xx_divs[i].pll_j,
+ aic31xx_divs[i].pll_d,
+ aic31xx->p_div,
+ aic31xx_divs[i].dosr,
+ aic31xx_divs[i].ndac,
+ aic31xx_divs[i].mdac,
+ aic31xx_divs[i].aosr,
+ aic31xx_divs[i].nadc,
+ aic31xx_divs[i].madc,
+ bclk_n
+ );
return 0;
}
@@ -919,8 +927,28 @@ static int aic31xx_set_dai_fmt(struct snd_soc_dai *codec_dai,
case SND_SOC_DAIFMT_CBM_CFM:
iface_reg1 |= AIC31XX_BCLK_MASTER | AIC31XX_WCLK_MASTER;
break;
+ case SND_SOC_DAIFMT_CBS_CFM:
+ iface_reg1 |= AIC31XX_WCLK_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBM_CFS:
+ iface_reg1 |= AIC31XX_BCLK_MASTER;
+ break;
+ case SND_SOC_DAIFMT_CBS_CFS:
+ break;
+ default:
+ dev_err(codec->dev, "Invalid DAI master/slave interface\n");
+ return -EINVAL;
+ }
+
+ /* signal polarity */
+ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+ case SND_SOC_DAIFMT_NB_NF:
+ break;
+ case SND_SOC_DAIFMT_IB_NF:
+ iface_reg2 |= AIC31XX_BCLKINV_MASK;
+ break;
default:
- dev_alert(codec->dev, "Invalid DAI master/slave interface\n");
+ dev_err(codec->dev, "Invalid DAI clock signal polarity\n");
return -EINVAL;
}
@@ -931,16 +959,12 @@ static int aic31xx_set_dai_fmt(struct snd_soc_dai *codec_dai,
case SND_SOC_DAIFMT_DSP_A:
dsp_a_val = 0x1; /* fall through */
case SND_SOC_DAIFMT_DSP_B:
- /* NOTE: BCLKINV bit value 1 equas NB and 0 equals IB */
- switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
- case SND_SOC_DAIFMT_NB_NF:
- iface_reg2 |= AIC31XX_BCLKINV_MASK;
- break;
- case SND_SOC_DAIFMT_IB_NF:
- break;
- default:
- return -EINVAL;
- }
+ /*
+ * NOTE: This CODEC samples on the falling edge of BCLK in
+ * DSP mode, this is inverted compared to what most DAIs
+ * expect, so we invert for this mode
+ */
+ iface_reg2 ^= AIC31XX_BCLKINV_MASK;
iface_reg1 |= (AIC31XX_DSP_MODE <<
AIC31XX_IFACE1_DATATYPE_SHIFT);
break;
@@ -981,8 +1005,9 @@ static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
dev_dbg(codec->dev, "## %s: clk_id = %d, freq = %d, dir = %d\n",
__func__, clk_id, freq, dir);
- for (i = 1; freq/i > 20000000 && i < 8; i++)
- ;
+ for (i = 1; i < 8; i++)
+ if (freq / i <= 20000000)
+ break;
if (freq/i > 20000000) {
dev_err(aic31xx->dev, "%s: Too high mclk frequency %u\n",
__func__, freq);
@@ -990,9 +1015,9 @@ static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
}
aic31xx->p_div = i;
- for (i = 0; i < ARRAY_SIZE(aic31xx_divs) &&
- aic31xx_divs[i].mclk_p != freq/aic31xx->p_div; i++)
- ;
+ for (i = 0; i < ARRAY_SIZE(aic31xx_divs); i++)
+ if (aic31xx_divs[i].mclk_p == freq / aic31xx->p_div)
+ break;
if (i == ARRAY_SIZE(aic31xx_divs)) {
dev_err(aic31xx->dev, "%s: Unsupported frequency %d\n",
__func__, freq);
@@ -1004,6 +1029,7 @@ static int aic31xx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
clk_id << AIC31XX_PLL_CLKIN_SHIFT);
aic31xx->sysclk = freq;
+
return 0;
}
@@ -1019,8 +1045,8 @@ static int aic31xx_regulator_event(struct notifier_block *nb,
* Put codec to reset and as at least one of the
* supplies was disabled.
*/
- if (gpio_is_valid(aic31xx->pdata.gpio_reset))
- gpio_set_value(aic31xx->pdata.gpio_reset, 0);
+ if (aic31xx->gpio_reset)
+ gpiod_set_value(aic31xx->gpio_reset, 1);
regcache_mark_dirty(aic31xx->regmap);
dev_dbg(aic31xx->dev, "## %s: DISABLE received\n", __func__);
@@ -1029,6 +1055,22 @@ static int aic31xx_regulator_event(struct notifier_block *nb,
return 0;
}
+static int aic31xx_reset(struct aic31xx_priv *aic31xx)
+{
+ int ret = 0;
+
+ if (aic31xx->gpio_reset) {
+ gpiod_set_value(aic31xx->gpio_reset, 1);
+ ndelay(10); /* At least 10ns */
+ gpiod_set_value(aic31xx->gpio_reset, 0);
+ } else {
+ ret = regmap_write(aic31xx->regmap, AIC31XX_RESET, 1);
+ }
+ mdelay(1); /* At least 1ms */
+
+ return ret;
+}
+
static void aic31xx_clk_on(struct snd_soc_codec *codec)
{
struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
@@ -1065,20 +1107,22 @@ static void aic31xx_clk_off(struct snd_soc_codec *codec)
static int aic31xx_power_on(struct snd_soc_codec *codec)
{
struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
- int ret = 0;
+ int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(aic31xx->supplies),
aic31xx->supplies);
if (ret)
return ret;
- if (gpio_is_valid(aic31xx->pdata.gpio_reset)) {
- gpio_set_value(aic31xx->pdata.gpio_reset, 1);
- udelay(100);
- }
regcache_cache_only(aic31xx->regmap, false);
+
+ /* Reset device registers for a consistent power-on like state */
+ ret = aic31xx_reset(aic31xx);
+ if (ret < 0)
+ dev_err(aic31xx->dev, "Could not reset device: %d\n", ret);
+
ret = regcache_sync(aic31xx->regmap);
- if (ret != 0) {
+ if (ret) {
dev_err(codec->dev,
"Failed to restore cache: %d\n", ret);
regcache_cache_only(aic31xx->regmap, true);
@@ -1086,19 +1130,17 @@ static int aic31xx_power_on(struct snd_soc_codec *codec)
aic31xx->supplies);
return ret;
}
+
return 0;
}
-static int aic31xx_power_off(struct snd_soc_codec *codec)
+static void aic31xx_power_off(struct snd_soc_codec *codec)
{
struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
- int ret = 0;
regcache_cache_only(aic31xx->regmap, true);
- ret = regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies),
- aic31xx->supplies);
-
- return ret;
+ regulator_bulk_disable(ARRAY_SIZE(aic31xx->supplies),
+ aic31xx->supplies);
}
static int aic31xx_set_bias_level(struct snd_soc_codec *codec,
@@ -1137,14 +1179,11 @@ static int aic31xx_set_bias_level(struct snd_soc_codec *codec,
static int aic31xx_codec_probe(struct snd_soc_codec *codec)
{
- int ret = 0;
struct aic31xx_priv *aic31xx = snd_soc_codec_get_drvdata(codec);
- int i;
+ int i, ret;
dev_dbg(aic31xx->dev, "## %s\n", __func__);
- aic31xx = snd_soc_codec_get_drvdata(codec);
-
aic31xx->codec = codec;
for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++) {
@@ -1169,8 +1208,10 @@ static int aic31xx_codec_probe(struct snd_soc_codec *codec)
return ret;
ret = aic31xx_add_widgets(codec);
+ if (ret)
+ return ret;
- return ret;
+ return 0;
}
static int aic31xx_codec_remove(struct snd_soc_codec *codec)
@@ -1258,89 +1299,31 @@ static const struct of_device_id tlv320aic31xx_of_match[] = {
{},
};
MODULE_DEVICE_TABLE(of, tlv320aic31xx_of_match);
-
-static void aic31xx_pdata_from_of(struct aic31xx_priv *aic31xx)
-{
- struct device_node *np = aic31xx->dev->of_node;
- unsigned int value = MICBIAS_2_0V;
- int ret;
-
- of_property_read_u32(np, "ai31xx-micbias-vg", &value);
- switch (value) {
- case MICBIAS_2_0V:
- case MICBIAS_2_5V:
- case MICBIAS_AVDDV:
- aic31xx->pdata.micbias_vg = value;
- break;
- default:
- dev_err(aic31xx->dev,
- "Bad ai31xx-micbias-vg value %d DT\n",
- value);
- aic31xx->pdata.micbias_vg = MICBIAS_2_0V;
- }
-
- ret = of_get_named_gpio(np, "gpio-reset", 0);
- if (ret > 0)
- aic31xx->pdata.gpio_reset = ret;
-}
-#else /* CONFIG_OF */
-static void aic31xx_pdata_from_of(struct aic31xx_priv *aic31xx)
-{
-}
#endif /* CONFIG_OF */
-static int aic31xx_device_init(struct aic31xx_priv *aic31xx)
-{
- int ret, i;
-
- dev_set_drvdata(aic31xx->dev, aic31xx);
-
- if (dev_get_platdata(aic31xx->dev))
- memcpy(&aic31xx->pdata, dev_get_platdata(aic31xx->dev),
- sizeof(aic31xx->pdata));
- else if (aic31xx->dev->of_node)
- aic31xx_pdata_from_of(aic31xx);
-
- if (aic31xx->pdata.gpio_reset) {
- ret = devm_gpio_request_one(aic31xx->dev,
- aic31xx->pdata.gpio_reset,
- GPIOF_OUT_INIT_HIGH,
- "aic31xx-reset-pin");
- if (ret < 0) {
- dev_err(aic31xx->dev, "not able to acquire gpio\n");
- return ret;
- }
- }
-
- for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++)
- aic31xx->supplies[i].supply = aic31xx_supply_names[i];
-
- ret = devm_regulator_bulk_get(aic31xx->dev,
- ARRAY_SIZE(aic31xx->supplies),
- aic31xx->supplies);
- if (ret != 0)
- dev_err(aic31xx->dev, "Failed to request supplies: %d\n", ret);
-
- return ret;
-}
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id aic31xx_acpi_match[] = {
+ { "10TI3100", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match);
+#endif
static int aic31xx_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct aic31xx_priv *aic31xx;
- int ret;
- const struct regmap_config *regmap_config;
+ unsigned int micbias_value = MICBIAS_2_0V;
+ int i, ret;
dev_dbg(&i2c->dev, "## %s: %s codec_type = %d\n", __func__,
- id->name, (int) id->driver_data);
-
- regmap_config = &aic31xx_i2c_regmap;
+ id->name, (int)id->driver_data);
aic31xx = devm_kzalloc(&i2c->dev, sizeof(*aic31xx), GFP_KERNEL);
- if (aic31xx == NULL)
+ if (!aic31xx)
return -ENOMEM;
- aic31xx->regmap = devm_regmap_init_i2c(i2c, regmap_config);
+ aic31xx->regmap = devm_regmap_init_i2c(i2c, &aic31xx_i2c_regmap);
if (IS_ERR(aic31xx->regmap)) {
ret = PTR_ERR(aic31xx->regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
@@ -1349,13 +1332,49 @@ static int aic31xx_i2c_probe(struct i2c_client *i2c,
}
aic31xx->dev = &i2c->dev;
- aic31xx->pdata.codec_type = id->driver_data;
+ aic31xx->codec_type = id->driver_data;
- ret = aic31xx_device_init(aic31xx);
- if (ret)
+ dev_set_drvdata(aic31xx->dev, aic31xx);
+
+ fwnode_property_read_u32(aic31xx->dev->fwnode, "ai31xx-micbias-vg",
+ &micbias_value);
+ switch (micbias_value) {
+ case MICBIAS_2_0V:
+ case MICBIAS_2_5V:
+ case MICBIAS_AVDDV:
+ aic31xx->micbias_vg = micbias_value;
+ break;
+ default:
+ dev_err(aic31xx->dev, "Bad ai31xx-micbias-vg value %d\n",
+ micbias_value);
+ aic31xx->micbias_vg = MICBIAS_2_0V;
+ }
+
+ if (dev_get_platdata(aic31xx->dev)) {
+ memcpy(&aic31xx->pdata, dev_get_platdata(aic31xx->dev), sizeof(aic31xx->pdata));
+ aic31xx->codec_type = aic31xx->pdata.codec_type;
+ aic31xx->micbias_vg = aic31xx->pdata.micbias_vg;
+ }
+
+ aic31xx->gpio_reset = devm_gpiod_get_optional(aic31xx->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(aic31xx->gpio_reset)) {
+ dev_err(aic31xx->dev, "not able to acquire gpio\n");
+ return PTR_ERR(aic31xx->gpio_reset);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(aic31xx->supplies); i++)
+ aic31xx->supplies[i].supply = aic31xx_supply_names[i];
+
+ ret = devm_regulator_bulk_get(aic31xx->dev,
+ ARRAY_SIZE(aic31xx->supplies),
+ aic31xx->supplies);
+ if (ret) {
+ dev_err(aic31xx->dev, "Failed to request supplies: %d\n", ret);
return ret;
+ }
- if (aic31xx->pdata.codec_type & DAC31XX_BIT)
+ if (aic31xx->codec_type & DAC31XX_BIT)
return snd_soc_register_codec(&i2c->dev,
&soc_codec_driver_aic31xx,
dac31xx_dai_driver,
@@ -1386,14 +1405,6 @@ static const struct i2c_device_id aic31xx_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, aic31xx_i2c_id);
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id aic31xx_acpi_match[] = {
- { "10TI3100", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(acpi, aic31xx_acpi_match);
-#endif
-
static struct i2c_driver aic31xx_i2c_driver = {
.driver = {
.name = "tlv320aic31xx-codec",
@@ -1404,9 +1415,8 @@ static struct i2c_driver aic31xx_i2c_driver = {
.remove = aic31xx_i2c_remove,
.id_table = aic31xx_i2c_id,
};
-
module_i2c_driver(aic31xx_i2c_driver);
-MODULE_DESCRIPTION("ASoC TLV320AIC3111 codec driver");
-MODULE_AUTHOR("Jyri Sarha");
-MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jyri Sarha <jsarha@ti.com>");
+MODULE_DESCRIPTION("ASoC TLV320AIC31xx CODEC Driver");
+MODULE_LICENSE("GPL v2");
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-23 23:13:13 +0300