774 lines
20 KiB
C
774 lines
20 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* tas2552.c - ALSA SoC Texas Instruments TAS2552 Mono Audio Amplifier
|
|
*
|
|
* Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com
|
|
*
|
|
* Author: Dan Murphy <dmurphy@ti.com>
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/device.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/of_gpio.h>
|
|
#include <linux/pm_runtime.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/gpio/consumer.h>
|
|
#include <linux/regulator/consumer.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/tas2552-plat.h>
|
|
#include <dt-bindings/sound/tas2552.h>
|
|
|
|
#include "tas2552.h"
|
|
|
|
static const struct reg_default tas2552_reg_defs[] = {
|
|
{TAS2552_CFG_1, 0x22},
|
|
{TAS2552_CFG_3, 0x80},
|
|
{TAS2552_DOUT, 0x00},
|
|
{TAS2552_OUTPUT_DATA, 0xc0},
|
|
{TAS2552_PDM_CFG, 0x01},
|
|
{TAS2552_PGA_GAIN, 0x00},
|
|
{TAS2552_BOOST_APT_CTRL, 0x0f},
|
|
{TAS2552_RESERVED_0D, 0xbe},
|
|
{TAS2552_LIMIT_RATE_HYS, 0x08},
|
|
{TAS2552_CFG_2, 0xef},
|
|
{TAS2552_SER_CTRL_1, 0x00},
|
|
{TAS2552_SER_CTRL_2, 0x00},
|
|
{TAS2552_PLL_CTRL_1, 0x10},
|
|
{TAS2552_PLL_CTRL_2, 0x00},
|
|
{TAS2552_PLL_CTRL_3, 0x00},
|
|
{TAS2552_BTIP, 0x8f},
|
|
{TAS2552_BTS_CTRL, 0x80},
|
|
{TAS2552_LIMIT_RELEASE, 0x04},
|
|
{TAS2552_LIMIT_INT_COUNT, 0x00},
|
|
{TAS2552_EDGE_RATE_CTRL, 0x40},
|
|
{TAS2552_VBAT_DATA, 0x00},
|
|
};
|
|
|
|
#define TAS2552_NUM_SUPPLIES 3
|
|
static const char *tas2552_supply_names[TAS2552_NUM_SUPPLIES] = {
|
|
"vbat", /* vbat voltage */
|
|
"iovdd", /* I/O Voltage */
|
|
"avdd", /* Analog DAC Voltage */
|
|
};
|
|
|
|
struct tas2552_data {
|
|
struct snd_soc_component *component;
|
|
struct regmap *regmap;
|
|
struct i2c_client *tas2552_client;
|
|
struct regulator_bulk_data supplies[TAS2552_NUM_SUPPLIES];
|
|
struct gpio_desc *enable_gpio;
|
|
unsigned char regs[TAS2552_VBAT_DATA];
|
|
unsigned int pll_clkin;
|
|
int pll_clk_id;
|
|
unsigned int pdm_clk;
|
|
int pdm_clk_id;
|
|
|
|
unsigned int dai_fmt;
|
|
unsigned int tdm_delay;
|
|
};
|
|
|
|
static int tas2552_post_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *kcontrol, int event)
|
|
{
|
|
struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
|
|
|
|
switch (event) {
|
|
case SND_SOC_DAPM_POST_PMU:
|
|
snd_soc_component_write(component, TAS2552_RESERVED_0D, 0xc0);
|
|
snd_soc_component_update_bits(component, TAS2552_LIMIT_RATE_HYS, (1 << 5),
|
|
(1 << 5));
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_2, 1, 0);
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_SWS, 0);
|
|
break;
|
|
case SND_SOC_DAPM_POST_PMD:
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_SWS,
|
|
TAS2552_SWS);
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_2, 1, 1);
|
|
snd_soc_component_update_bits(component, TAS2552_LIMIT_RATE_HYS, (1 << 5), 0);
|
|
snd_soc_component_write(component, TAS2552_RESERVED_0D, 0xbe);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Input mux controls */
|
|
static const char * const tas2552_input_texts[] = {
|
|
"Digital", "Analog" };
|
|
static SOC_ENUM_SINGLE_DECL(tas2552_input_mux_enum, TAS2552_CFG_3, 7,
|
|
tas2552_input_texts);
|
|
|
|
static const struct snd_kcontrol_new tas2552_input_mux_control =
|
|
SOC_DAPM_ENUM("Route", tas2552_input_mux_enum);
|
|
|
|
static const struct snd_soc_dapm_widget tas2552_dapm_widgets[] =
|
|
{
|
|
SND_SOC_DAPM_INPUT("IN"),
|
|
|
|
/* MUX Controls */
|
|
SND_SOC_DAPM_MUX("Input selection", SND_SOC_NOPM, 0, 0,
|
|
&tas2552_input_mux_control),
|
|
|
|
SND_SOC_DAPM_AIF_IN("DAC IN", "DAC Playback", 0, SND_SOC_NOPM, 0, 0),
|
|
SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0),
|
|
SND_SOC_DAPM_OUT_DRV("ClassD", TAS2552_CFG_2, 7, 0, NULL, 0),
|
|
SND_SOC_DAPM_SUPPLY("PLL", TAS2552_CFG_2, 3, 0, NULL, 0),
|
|
SND_SOC_DAPM_POST("Post Event", tas2552_post_event),
|
|
|
|
SND_SOC_DAPM_OUTPUT("OUT")
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route tas2552_audio_map[] = {
|
|
{"DAC", NULL, "DAC IN"},
|
|
{"Input selection", "Digital", "DAC"},
|
|
{"Input selection", "Analog", "IN"},
|
|
{"ClassD", NULL, "Input selection"},
|
|
{"OUT", NULL, "ClassD"},
|
|
{"ClassD", NULL, "PLL"},
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
static void tas2552_sw_shutdown(struct tas2552_data *tas2552, int sw_shutdown)
|
|
{
|
|
u8 cfg1_reg = 0;
|
|
|
|
if (!tas2552->component)
|
|
return;
|
|
|
|
if (sw_shutdown)
|
|
cfg1_reg = TAS2552_SWS;
|
|
|
|
snd_soc_component_update_bits(tas2552->component, TAS2552_CFG_1, TAS2552_SWS,
|
|
cfg1_reg);
|
|
}
|
|
#endif
|
|
|
|
static int tas2552_setup_pll(struct snd_soc_component *component,
|
|
struct snd_pcm_hw_params *params)
|
|
{
|
|
struct tas2552_data *tas2552 = dev_get_drvdata(component->dev);
|
|
bool bypass_pll = false;
|
|
unsigned int pll_clk = params_rate(params) * 512;
|
|
unsigned int pll_clkin = tas2552->pll_clkin;
|
|
u8 pll_enable;
|
|
|
|
if (!pll_clkin) {
|
|
if (tas2552->pll_clk_id != TAS2552_PLL_CLKIN_BCLK)
|
|
return -EINVAL;
|
|
|
|
pll_clkin = snd_soc_params_to_bclk(params);
|
|
pll_clkin += tas2552->tdm_delay;
|
|
}
|
|
|
|
pll_enable = snd_soc_component_read(component, TAS2552_CFG_2) & TAS2552_PLL_ENABLE;
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_2, TAS2552_PLL_ENABLE, 0);
|
|
|
|
if (pll_clkin == pll_clk)
|
|
bypass_pll = true;
|
|
|
|
if (bypass_pll) {
|
|
/* By pass the PLL configuration */
|
|
snd_soc_component_update_bits(component, TAS2552_PLL_CTRL_2,
|
|
TAS2552_PLL_BYPASS, TAS2552_PLL_BYPASS);
|
|
} else {
|
|
/* Fill in the PLL control registers for J & D
|
|
* pll_clk = (.5 * pll_clkin * J.D) / 2^p
|
|
* Need to fill in J and D here based on incoming freq
|
|
*/
|
|
unsigned int d, q, t;
|
|
u8 j;
|
|
u8 pll_sel = (tas2552->pll_clk_id << 3) & TAS2552_PLL_SRC_MASK;
|
|
u8 p = snd_soc_component_read(component, TAS2552_PLL_CTRL_1);
|
|
|
|
p = (p >> 7);
|
|
|
|
recalc:
|
|
t = (pll_clk * 2) << p;
|
|
j = t / pll_clkin;
|
|
d = t % pll_clkin;
|
|
t = pll_clkin / 10000;
|
|
q = d / (t + 1);
|
|
d = q + ((9999 - pll_clkin % 10000) * (d / t - q)) / 10000;
|
|
|
|
if (d && (pll_clkin < 512000 || pll_clkin > 9200000)) {
|
|
if (tas2552->pll_clk_id == TAS2552_PLL_CLKIN_BCLK) {
|
|
pll_clkin = 1800000;
|
|
pll_sel = (TAS2552_PLL_CLKIN_1_8_FIXED << 3) &
|
|
TAS2552_PLL_SRC_MASK;
|
|
} else {
|
|
pll_clkin = snd_soc_params_to_bclk(params);
|
|
pll_clkin += tas2552->tdm_delay;
|
|
pll_sel = (TAS2552_PLL_CLKIN_BCLK << 3) &
|
|
TAS2552_PLL_SRC_MASK;
|
|
}
|
|
goto recalc;
|
|
}
|
|
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_PLL_SRC_MASK,
|
|
pll_sel);
|
|
|
|
snd_soc_component_update_bits(component, TAS2552_PLL_CTRL_1,
|
|
TAS2552_PLL_J_MASK, j);
|
|
/* Will clear the PLL_BYPASS bit */
|
|
snd_soc_component_write(component, TAS2552_PLL_CTRL_2,
|
|
TAS2552_PLL_D_UPPER(d));
|
|
snd_soc_component_write(component, TAS2552_PLL_CTRL_3,
|
|
TAS2552_PLL_D_LOWER(d));
|
|
}
|
|
|
|
/* Restore PLL status */
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_2, TAS2552_PLL_ENABLE,
|
|
pll_enable);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tas2552_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct tas2552_data *tas2552 = dev_get_drvdata(component->dev);
|
|
int cpf;
|
|
u8 ser_ctrl1_reg, wclk_rate;
|
|
|
|
switch (params_width(params)) {
|
|
case 16:
|
|
ser_ctrl1_reg = TAS2552_WORDLENGTH_16BIT;
|
|
cpf = 32 + tas2552->tdm_delay;
|
|
break;
|
|
case 20:
|
|
ser_ctrl1_reg = TAS2552_WORDLENGTH_20BIT;
|
|
cpf = 64 + tas2552->tdm_delay;
|
|
break;
|
|
case 24:
|
|
ser_ctrl1_reg = TAS2552_WORDLENGTH_24BIT;
|
|
cpf = 64 + tas2552->tdm_delay;
|
|
break;
|
|
case 32:
|
|
ser_ctrl1_reg = TAS2552_WORDLENGTH_32BIT;
|
|
cpf = 64 + tas2552->tdm_delay;
|
|
break;
|
|
default:
|
|
dev_err(component->dev, "Not supported sample size: %d\n",
|
|
params_width(params));
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (cpf <= 32)
|
|
ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_32;
|
|
else if (cpf <= 64)
|
|
ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_64;
|
|
else if (cpf <= 128)
|
|
ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_128;
|
|
else
|
|
ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_256;
|
|
|
|
snd_soc_component_update_bits(component, TAS2552_SER_CTRL_1,
|
|
TAS2552_WORDLENGTH_MASK | TAS2552_CLKSPERFRAME_MASK,
|
|
ser_ctrl1_reg);
|
|
|
|
switch (params_rate(params)) {
|
|
case 8000:
|
|
wclk_rate = TAS2552_WCLK_FREQ_8KHZ;
|
|
break;
|
|
case 11025:
|
|
case 12000:
|
|
wclk_rate = TAS2552_WCLK_FREQ_11_12KHZ;
|
|
break;
|
|
case 16000:
|
|
wclk_rate = TAS2552_WCLK_FREQ_16KHZ;
|
|
break;
|
|
case 22050:
|
|
case 24000:
|
|
wclk_rate = TAS2552_WCLK_FREQ_22_24KHZ;
|
|
break;
|
|
case 32000:
|
|
wclk_rate = TAS2552_WCLK_FREQ_32KHZ;
|
|
break;
|
|
case 44100:
|
|
case 48000:
|
|
wclk_rate = TAS2552_WCLK_FREQ_44_48KHZ;
|
|
break;
|
|
case 88200:
|
|
case 96000:
|
|
wclk_rate = TAS2552_WCLK_FREQ_88_96KHZ;
|
|
break;
|
|
case 176400:
|
|
case 192000:
|
|
wclk_rate = TAS2552_WCLK_FREQ_176_192KHZ;
|
|
break;
|
|
default:
|
|
dev_err(component->dev, "Not supported sample rate: %d\n",
|
|
params_rate(params));
|
|
return -EINVAL;
|
|
}
|
|
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_3, TAS2552_WCLK_FREQ_MASK,
|
|
wclk_rate);
|
|
|
|
return tas2552_setup_pll(component, params);
|
|
}
|
|
|
|
#define TAS2552_DAI_FMT_MASK (TAS2552_BCLKDIR | \
|
|
TAS2552_WCLKDIR | \
|
|
TAS2552_DATAFORMAT_MASK)
|
|
static int tas2552_prepare(struct snd_pcm_substream *substream,
|
|
struct snd_soc_dai *dai)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component);
|
|
int delay = 0;
|
|
|
|
/* TDM slot selection only valid in DSP_A/_B mode */
|
|
if (tas2552->dai_fmt == SND_SOC_DAIFMT_DSP_A)
|
|
delay += (tas2552->tdm_delay + 1);
|
|
else if (tas2552->dai_fmt == SND_SOC_DAIFMT_DSP_B)
|
|
delay += tas2552->tdm_delay;
|
|
|
|
/* Configure data delay */
|
|
snd_soc_component_write(component, TAS2552_SER_CTRL_2, delay);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tas2552_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct tas2552_data *tas2552 = dev_get_drvdata(component->dev);
|
|
u8 serial_format;
|
|
|
|
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
|
|
case SND_SOC_DAIFMT_CBC_CFC:
|
|
serial_format = 0x00;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBC_CFP:
|
|
serial_format = TAS2552_WCLKDIR;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBP_CFC:
|
|
serial_format = TAS2552_BCLKDIR;
|
|
break;
|
|
case SND_SOC_DAIFMT_CBP_CFP:
|
|
serial_format = (TAS2552_BCLKDIR | TAS2552_WCLKDIR);
|
|
break;
|
|
default:
|
|
dev_vdbg(component->dev, "DAI Format master is not found\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK |
|
|
SND_SOC_DAIFMT_INV_MASK)) {
|
|
case (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF):
|
|
break;
|
|
case (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF):
|
|
case (SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF):
|
|
serial_format |= TAS2552_DATAFORMAT_DSP;
|
|
break;
|
|
case (SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF):
|
|
serial_format |= TAS2552_DATAFORMAT_RIGHT_J;
|
|
break;
|
|
case (SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF):
|
|
serial_format |= TAS2552_DATAFORMAT_LEFT_J;
|
|
break;
|
|
default:
|
|
dev_vdbg(component->dev, "DAI Format is not found\n");
|
|
return -EINVAL;
|
|
}
|
|
tas2552->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
|
|
|
|
snd_soc_component_update_bits(component, TAS2552_SER_CTRL_1, TAS2552_DAI_FMT_MASK,
|
|
serial_format);
|
|
return 0;
|
|
}
|
|
|
|
static int tas2552_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
|
|
unsigned int freq, int dir)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct tas2552_data *tas2552 = dev_get_drvdata(component->dev);
|
|
u8 reg, mask, val;
|
|
|
|
switch (clk_id) {
|
|
case TAS2552_PLL_CLKIN_MCLK:
|
|
case TAS2552_PLL_CLKIN_IVCLKIN:
|
|
if (freq < 512000 || freq > 24576000) {
|
|
/* out of range PLL_CLKIN, fall back to use BCLK */
|
|
dev_warn(component->dev, "Out of range PLL_CLKIN: %u\n",
|
|
freq);
|
|
clk_id = TAS2552_PLL_CLKIN_BCLK;
|
|
freq = 0;
|
|
}
|
|
fallthrough;
|
|
case TAS2552_PLL_CLKIN_BCLK:
|
|
case TAS2552_PLL_CLKIN_1_8_FIXED:
|
|
mask = TAS2552_PLL_SRC_MASK;
|
|
val = (clk_id << 3) & mask; /* bit 4:5 in the register */
|
|
reg = TAS2552_CFG_1;
|
|
tas2552->pll_clk_id = clk_id;
|
|
tas2552->pll_clkin = freq;
|
|
break;
|
|
case TAS2552_PDM_CLK_PLL:
|
|
case TAS2552_PDM_CLK_IVCLKIN:
|
|
case TAS2552_PDM_CLK_BCLK:
|
|
case TAS2552_PDM_CLK_MCLK:
|
|
mask = TAS2552_PDM_CLK_SEL_MASK;
|
|
val = (clk_id >> 1) & mask; /* bit 0:1 in the register */
|
|
reg = TAS2552_PDM_CFG;
|
|
tas2552->pdm_clk_id = clk_id;
|
|
tas2552->pdm_clk = freq;
|
|
break;
|
|
default:
|
|
dev_err(component->dev, "Invalid clk id: %d\n", clk_id);
|
|
return -EINVAL;
|
|
}
|
|
|
|
snd_soc_component_update_bits(component, reg, mask, val);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tas2552_set_dai_tdm_slot(struct snd_soc_dai *dai,
|
|
unsigned int tx_mask, unsigned int rx_mask,
|
|
int slots, int slot_width)
|
|
{
|
|
struct snd_soc_component *component = dai->component;
|
|
struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component);
|
|
unsigned int lsb;
|
|
|
|
if (unlikely(!tx_mask)) {
|
|
dev_err(component->dev, "tx masks need to be non 0\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* TDM based on DSP mode requires slots to be adjacent */
|
|
lsb = __ffs(tx_mask);
|
|
if ((lsb + 1) != __fls(tx_mask)) {
|
|
dev_err(component->dev, "Invalid mask, slots must be adjacent\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
tas2552->tdm_delay = lsb * slot_width;
|
|
|
|
/* DOUT in high-impedance on inactive bit clocks */
|
|
snd_soc_component_update_bits(component, TAS2552_DOUT,
|
|
TAS2552_SDOUT_TRISTATE, TAS2552_SDOUT_TRISTATE);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tas2552_mute(struct snd_soc_dai *dai, int mute, int direction)
|
|
{
|
|
u8 cfg1_reg = 0;
|
|
struct snd_soc_component *component = dai->component;
|
|
|
|
if (mute)
|
|
cfg1_reg |= TAS2552_MUTE;
|
|
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_MUTE, cfg1_reg);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int tas2552_runtime_suspend(struct device *dev)
|
|
{
|
|
struct tas2552_data *tas2552 = dev_get_drvdata(dev);
|
|
|
|
tas2552_sw_shutdown(tas2552, 1);
|
|
|
|
regcache_cache_only(tas2552->regmap, true);
|
|
regcache_mark_dirty(tas2552->regmap);
|
|
|
|
gpiod_set_value(tas2552->enable_gpio, 0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tas2552_runtime_resume(struct device *dev)
|
|
{
|
|
struct tas2552_data *tas2552 = dev_get_drvdata(dev);
|
|
|
|
gpiod_set_value(tas2552->enable_gpio, 1);
|
|
|
|
tas2552_sw_shutdown(tas2552, 0);
|
|
|
|
regcache_cache_only(tas2552->regmap, false);
|
|
regcache_sync(tas2552->regmap);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
static const struct dev_pm_ops tas2552_pm = {
|
|
SET_RUNTIME_PM_OPS(tas2552_runtime_suspend, tas2552_runtime_resume,
|
|
NULL)
|
|
};
|
|
|
|
static const struct snd_soc_dai_ops tas2552_speaker_dai_ops = {
|
|
.hw_params = tas2552_hw_params,
|
|
.prepare = tas2552_prepare,
|
|
.set_sysclk = tas2552_set_dai_sysclk,
|
|
.set_fmt = tas2552_set_dai_fmt,
|
|
.set_tdm_slot = tas2552_set_dai_tdm_slot,
|
|
.mute_stream = tas2552_mute,
|
|
.no_capture_mute = 1,
|
|
};
|
|
|
|
/* Formats supported by TAS2552 driver. */
|
|
#define TAS2552_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
|
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
|
|
|
|
/* TAS2552 dai structure. */
|
|
static struct snd_soc_dai_driver tas2552_dai[] = {
|
|
{
|
|
.name = "tas2552-amplifier",
|
|
.playback = {
|
|
.stream_name = "Playback",
|
|
.channels_min = 2,
|
|
.channels_max = 2,
|
|
.rates = SNDRV_PCM_RATE_8000_192000,
|
|
.formats = TAS2552_FORMATS,
|
|
},
|
|
.ops = &tas2552_speaker_dai_ops,
|
|
},
|
|
};
|
|
|
|
/*
|
|
* DAC digital volumes. From -7 to 24 dB in 1 dB steps
|
|
*/
|
|
static DECLARE_TLV_DB_SCALE(dac_tlv, -700, 100, 0);
|
|
|
|
static const char * const tas2552_din_source_select[] = {
|
|
"Muted",
|
|
"Left",
|
|
"Right",
|
|
"Left + Right average",
|
|
};
|
|
static SOC_ENUM_SINGLE_DECL(tas2552_din_source_enum,
|
|
TAS2552_CFG_3, 3,
|
|
tas2552_din_source_select);
|
|
|
|
static const struct snd_kcontrol_new tas2552_snd_controls[] = {
|
|
SOC_SINGLE_TLV("Speaker Driver Playback Volume",
|
|
TAS2552_PGA_GAIN, 0, 0x1f, 0, dac_tlv),
|
|
SOC_ENUM("DIN source", tas2552_din_source_enum),
|
|
};
|
|
|
|
static int tas2552_component_probe(struct snd_soc_component *component)
|
|
{
|
|
struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component);
|
|
int ret;
|
|
|
|
tas2552->component = component;
|
|
|
|
ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies),
|
|
tas2552->supplies);
|
|
|
|
if (ret != 0) {
|
|
dev_err(component->dev, "Failed to enable supplies: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
gpiod_set_value(tas2552->enable_gpio, 1);
|
|
|
|
ret = pm_runtime_resume_and_get(component->dev);
|
|
if (ret < 0) {
|
|
dev_err(component->dev, "Enabling device failed: %d\n",
|
|
ret);
|
|
goto probe_fail;
|
|
}
|
|
|
|
snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_MUTE, TAS2552_MUTE);
|
|
snd_soc_component_write(component, TAS2552_CFG_3, TAS2552_I2S_OUT_SEL |
|
|
TAS2552_DIN_SRC_SEL_AVG_L_R);
|
|
snd_soc_component_write(component, TAS2552_OUTPUT_DATA,
|
|
TAS2552_PDM_DATA_SEL_V_I |
|
|
TAS2552_R_DATA_OUT(TAS2552_DATA_OUT_V_DATA));
|
|
snd_soc_component_write(component, TAS2552_BOOST_APT_CTRL, TAS2552_APT_DELAY_200 |
|
|
TAS2552_APT_THRESH_20_17);
|
|
|
|
snd_soc_component_write(component, TAS2552_CFG_2, TAS2552_BOOST_EN | TAS2552_APT_EN |
|
|
TAS2552_LIM_EN);
|
|
|
|
return 0;
|
|
|
|
probe_fail:
|
|
pm_runtime_put_noidle(component->dev);
|
|
gpiod_set_value(tas2552->enable_gpio, 0);
|
|
|
|
regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies),
|
|
tas2552->supplies);
|
|
return ret;
|
|
}
|
|
|
|
static void tas2552_component_remove(struct snd_soc_component *component)
|
|
{
|
|
struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component);
|
|
|
|
pm_runtime_put(component->dev);
|
|
|
|
gpiod_set_value(tas2552->enable_gpio, 0);
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
static int tas2552_suspend(struct snd_soc_component *component)
|
|
{
|
|
struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component);
|
|
int ret;
|
|
|
|
ret = regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies),
|
|
tas2552->supplies);
|
|
|
|
if (ret != 0)
|
|
dev_err(component->dev, "Failed to disable supplies: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
static int tas2552_resume(struct snd_soc_component *component)
|
|
{
|
|
struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component);
|
|
int ret;
|
|
|
|
ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies),
|
|
tas2552->supplies);
|
|
|
|
if (ret != 0) {
|
|
dev_err(component->dev, "Failed to enable supplies: %d\n",
|
|
ret);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
#else
|
|
#define tas2552_suspend NULL
|
|
#define tas2552_resume NULL
|
|
#endif
|
|
|
|
static const struct snd_soc_component_driver soc_component_dev_tas2552 = {
|
|
.probe = tas2552_component_probe,
|
|
.remove = tas2552_component_remove,
|
|
.suspend = tas2552_suspend,
|
|
.resume = tas2552_resume,
|
|
.controls = tas2552_snd_controls,
|
|
.num_controls = ARRAY_SIZE(tas2552_snd_controls),
|
|
.dapm_widgets = tas2552_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(tas2552_dapm_widgets),
|
|
.dapm_routes = tas2552_audio_map,
|
|
.num_dapm_routes = ARRAY_SIZE(tas2552_audio_map),
|
|
.idle_bias_on = 1,
|
|
.endianness = 1,
|
|
};
|
|
|
|
static const struct regmap_config tas2552_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
|
|
.max_register = TAS2552_MAX_REG,
|
|
.reg_defaults = tas2552_reg_defs,
|
|
.num_reg_defaults = ARRAY_SIZE(tas2552_reg_defs),
|
|
.cache_type = REGCACHE_RBTREE,
|
|
};
|
|
|
|
static int tas2552_probe(struct i2c_client *client)
|
|
{
|
|
struct device *dev;
|
|
struct tas2552_data *data;
|
|
int ret;
|
|
int i;
|
|
|
|
dev = &client->dev;
|
|
data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
|
|
if (data == NULL)
|
|
return -ENOMEM;
|
|
|
|
data->enable_gpio = devm_gpiod_get_optional(dev, "enable",
|
|
GPIOD_OUT_LOW);
|
|
if (IS_ERR(data->enable_gpio))
|
|
return PTR_ERR(data->enable_gpio);
|
|
|
|
data->tas2552_client = client;
|
|
data->regmap = devm_regmap_init_i2c(client, &tas2552_regmap_config);
|
|
if (IS_ERR(data->regmap)) {
|
|
ret = PTR_ERR(data->regmap);
|
|
dev_err(&client->dev, "Failed to allocate register map: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(data->supplies); i++)
|
|
data->supplies[i].supply = tas2552_supply_names[i];
|
|
|
|
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies),
|
|
data->supplies);
|
|
if (ret != 0) {
|
|
dev_err(dev, "Failed to request supplies: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
pm_runtime_set_active(&client->dev);
|
|
pm_runtime_set_autosuspend_delay(&client->dev, 1000);
|
|
pm_runtime_use_autosuspend(&client->dev);
|
|
pm_runtime_enable(&client->dev);
|
|
pm_runtime_mark_last_busy(&client->dev);
|
|
pm_runtime_put_sync_autosuspend(&client->dev);
|
|
|
|
dev_set_drvdata(&client->dev, data);
|
|
|
|
ret = devm_snd_soc_register_component(&client->dev,
|
|
&soc_component_dev_tas2552,
|
|
tas2552_dai, ARRAY_SIZE(tas2552_dai));
|
|
if (ret < 0) {
|
|
dev_err(&client->dev, "Failed to register component: %d\n", ret);
|
|
pm_runtime_get_noresume(&client->dev);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void tas2552_i2c_remove(struct i2c_client *client)
|
|
{
|
|
pm_runtime_disable(&client->dev);
|
|
}
|
|
|
|
static const struct i2c_device_id tas2552_id[] = {
|
|
{ "tas2552", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, tas2552_id);
|
|
|
|
#if IS_ENABLED(CONFIG_OF)
|
|
static const struct of_device_id tas2552_of_match[] = {
|
|
{ .compatible = "ti,tas2552", },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, tas2552_of_match);
|
|
#endif
|
|
|
|
static struct i2c_driver tas2552_i2c_driver = {
|
|
.driver = {
|
|
.name = "tas2552",
|
|
.of_match_table = of_match_ptr(tas2552_of_match),
|
|
.pm = &tas2552_pm,
|
|
},
|
|
.probe_new = tas2552_probe,
|
|
.remove = tas2552_i2c_remove,
|
|
.id_table = tas2552_id,
|
|
};
|
|
|
|
module_i2c_driver(tas2552_i2c_driver);
|
|
|
|
MODULE_AUTHOR("Dan Muprhy <dmurphy@ti.com>");
|
|
MODULE_DESCRIPTION("TAS2552 Audio amplifier driver");
|
|
MODULE_LICENSE("GPL");
|