forked from Minki/linux
d20b098dd9
Configure the word length based on the params_width of the stream. Also configure the clock per frame value which is used when tas2552 is bus master. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
693 lines
18 KiB
C
693 lines
18 KiB
C
/*
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* tas2552.c - ALSA SoC Texas Instruments TAS2552 Mono Audio Amplifier
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*
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* Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
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*
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* Author: Dan Murphy <dmurphy@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/device.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <linux/pm_runtime.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <linux/gpio/consumer.h>
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#include <linux/regulator/consumer.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include <sound/tlv.h>
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#include <sound/tas2552-plat.h>
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#include <dt-bindings/sound/tas2552.h>
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#include "tas2552.h"
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static struct reg_default tas2552_reg_defs[] = {
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{TAS2552_CFG_1, 0x22},
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{TAS2552_CFG_3, 0x80},
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{TAS2552_DOUT, 0x00},
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{TAS2552_OUTPUT_DATA, 0xc0},
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{TAS2552_PDM_CFG, 0x01},
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{TAS2552_PGA_GAIN, 0x00},
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{TAS2552_BOOST_PT_CTRL, 0x0f},
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{TAS2552_RESERVED_0D, 0xbe},
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{TAS2552_LIMIT_RATE_HYS, 0x08},
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{TAS2552_CFG_2, 0xef},
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{TAS2552_SER_CTRL_1, 0x00},
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{TAS2552_SER_CTRL_2, 0x00},
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{TAS2552_PLL_CTRL_1, 0x10},
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{TAS2552_PLL_CTRL_2, 0x00},
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{TAS2552_PLL_CTRL_3, 0x00},
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{TAS2552_BTIP, 0x8f},
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{TAS2552_BTS_CTRL, 0x80},
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{TAS2552_LIMIT_RELEASE, 0x04},
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{TAS2552_LIMIT_INT_COUNT, 0x00},
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{TAS2552_EDGE_RATE_CTRL, 0x40},
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{TAS2552_VBAT_DATA, 0x00},
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};
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#define TAS2552_NUM_SUPPLIES 3
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static const char *tas2552_supply_names[TAS2552_NUM_SUPPLIES] = {
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"vbat", /* vbat voltage */
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"iovdd", /* I/O Voltage */
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"avdd", /* Analog DAC Voltage */
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};
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struct tas2552_data {
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struct snd_soc_codec *codec;
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struct regmap *regmap;
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struct i2c_client *tas2552_client;
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struct regulator_bulk_data supplies[TAS2552_NUM_SUPPLIES];
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struct gpio_desc *enable_gpio;
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unsigned char regs[TAS2552_VBAT_DATA];
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unsigned int pll_clkin;
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unsigned int pdm_clk;
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unsigned int dai_fmt;
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unsigned int tdm_delay;
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};
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static int tas2552_post_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
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switch (event) {
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case SND_SOC_DAPM_POST_PMU:
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snd_soc_write(codec, TAS2552_RESERVED_0D, 0xc0);
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snd_soc_update_bits(codec, TAS2552_LIMIT_RATE_HYS, (1 << 5),
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(1 << 5));
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snd_soc_update_bits(codec, TAS2552_CFG_2, 1, 0);
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snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_SWS, 0);
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break;
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case SND_SOC_DAPM_POST_PMD:
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snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_SWS,
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TAS2552_SWS);
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snd_soc_update_bits(codec, TAS2552_CFG_2, 1, 1);
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snd_soc_update_bits(codec, TAS2552_LIMIT_RATE_HYS, (1 << 5), 0);
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snd_soc_write(codec, TAS2552_RESERVED_0D, 0xbe);
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break;
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}
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return 0;
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}
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/* Input mux controls */
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static const char * const tas2552_input_texts[] = {
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"Digital", "Analog" };
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static SOC_ENUM_SINGLE_DECL(tas2552_input_mux_enum, TAS2552_CFG_3, 7,
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tas2552_input_texts);
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static const struct snd_kcontrol_new tas2552_input_mux_control =
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SOC_DAPM_ENUM("Route", tas2552_input_mux_enum);
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static const struct snd_soc_dapm_widget tas2552_dapm_widgets[] =
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{
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SND_SOC_DAPM_INPUT("IN"),
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/* MUX Controls */
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SND_SOC_DAPM_MUX("Input selection", SND_SOC_NOPM, 0, 0,
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&tas2552_input_mux_control),
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SND_SOC_DAPM_AIF_IN("DAC IN", "DAC Playback", 0, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0),
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SND_SOC_DAPM_OUT_DRV("ClassD", TAS2552_CFG_2, 7, 0, NULL, 0),
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SND_SOC_DAPM_SUPPLY("PLL", TAS2552_CFG_2, 3, 0, NULL, 0),
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SND_SOC_DAPM_POST("Post Event", tas2552_post_event),
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SND_SOC_DAPM_OUTPUT("OUT")
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};
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static const struct snd_soc_dapm_route tas2552_audio_map[] = {
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{"DAC", NULL, "DAC IN"},
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{"Input selection", "Digital", "DAC"},
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{"Input selection", "Analog", "IN"},
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{"ClassD", NULL, "Input selection"},
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{"OUT", NULL, "ClassD"},
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{"ClassD", NULL, "PLL"},
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};
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#ifdef CONFIG_PM
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static void tas2552_sw_shutdown(struct tas2552_data *tas_data, int sw_shutdown)
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{
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u8 cfg1_reg = 0;
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if (!tas_data->codec)
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return;
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if (sw_shutdown)
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cfg1_reg = TAS2552_SWS;
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snd_soc_update_bits(tas_data->codec, TAS2552_CFG_1, TAS2552_SWS,
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cfg1_reg);
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}
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#endif
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static int tas2552_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev);
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int sample_rate, pll_clk;
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int d;
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int cpf;
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u8 p, j;
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u8 ser_ctrl1_reg;
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switch (params_width(params)) {
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case 16:
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ser_ctrl1_reg = TAS2552_WORDLENGTH_16BIT;
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cpf = 32 + tas2552->tdm_delay;
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break;
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case 20:
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ser_ctrl1_reg = TAS2552_WORDLENGTH_20BIT;
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cpf = 64 + tas2552->tdm_delay;
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break;
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case 24:
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ser_ctrl1_reg = TAS2552_WORDLENGTH_24BIT;
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cpf = 64 + tas2552->tdm_delay;
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break;
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case 32:
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ser_ctrl1_reg = TAS2552_WORDLENGTH_32BIT;
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cpf = 64 + tas2552->tdm_delay;
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break;
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default:
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dev_err(codec->dev, "Not supported sample size: %d\n",
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params_width(params));
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return -EINVAL;
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}
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if (cpf <= 32)
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ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_32;
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else if (cpf <= 64)
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ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_64;
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else if (cpf <= 128)
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ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_128;
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else
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ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_256;
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snd_soc_update_bits(codec, TAS2552_SER_CTRL_1,
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TAS2552_WORDLENGTH_MASK | TAS2552_CLKSPERFRAME_MASK,
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ser_ctrl1_reg);
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if (!tas2552->pll_clkin)
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return -EINVAL;
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snd_soc_update_bits(codec, TAS2552_CFG_2, TAS2552_PLL_ENABLE, 0);
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if (tas2552->pll_clkin == TAS2552_245MHZ_CLK ||
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tas2552->pll_clkin == TAS2552_225MHZ_CLK) {
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/* By pass the PLL configuration */
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snd_soc_update_bits(codec, TAS2552_PLL_CTRL_2,
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TAS2552_PLL_BYPASS_MASK,
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TAS2552_PLL_BYPASS);
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} else {
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/* Fill in the PLL control registers for J & D
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* PLL_CLK = (.5 * freq * J.D) / 2^p
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* Need to fill in J and D here based on incoming freq
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*/
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p = snd_soc_read(codec, TAS2552_PLL_CTRL_1);
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p = (p >> 7);
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sample_rate = params_rate(params);
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if (sample_rate == 48000)
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pll_clk = TAS2552_245MHZ_CLK;
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else if (sample_rate == 44100)
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pll_clk = TAS2552_225MHZ_CLK;
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else {
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dev_vdbg(codec->dev, "Substream sample rate is not found %i\n",
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params_rate(params));
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return -EINVAL;
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}
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j = (pll_clk * 2 * (1 << p)) / tas2552->pll_clkin;
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d = (pll_clk * 2 * (1 << p)) % tas2552->pll_clkin;
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snd_soc_update_bits(codec, TAS2552_PLL_CTRL_1,
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TAS2552_PLL_J_MASK, j);
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snd_soc_write(codec, TAS2552_PLL_CTRL_2,
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(d >> 7) & TAS2552_PLL_D_UPPER_MASK);
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snd_soc_write(codec, TAS2552_PLL_CTRL_3,
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d & TAS2552_PLL_D_LOWER_MASK);
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}
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return 0;
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}
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#define TAS2552_DAI_FMT_MASK (TAS2552_BCLKDIR | \
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TAS2552_WCLKDIR | \
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TAS2552_DATAFORMAT_MASK)
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static int tas2552_prepare(struct snd_pcm_substream *substream,
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struct snd_soc_dai *dai)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
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int delay = 0;
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/* TDM slot selection only valid in DSP_A/_B mode */
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if (tas2552->dai_fmt == SND_SOC_DAIFMT_DSP_A)
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delay += (tas2552->tdm_delay + 1);
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else if (tas2552->dai_fmt == SND_SOC_DAIFMT_DSP_B)
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delay += tas2552->tdm_delay;
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/* Configure data delay */
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snd_soc_write(codec, TAS2552_SER_CTRL_2, delay);
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return 0;
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}
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static int tas2552_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev);
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u8 serial_format;
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switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
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case SND_SOC_DAIFMT_CBS_CFS:
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serial_format = 0x00;
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break;
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case SND_SOC_DAIFMT_CBS_CFM:
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serial_format = TAS2552_WCLKDIR;
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break;
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case SND_SOC_DAIFMT_CBM_CFS:
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serial_format = TAS2552_BCLKDIR;
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break;
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case SND_SOC_DAIFMT_CBM_CFM:
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serial_format = (TAS2552_BCLKDIR | TAS2552_WCLKDIR);
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break;
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default:
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dev_vdbg(codec->dev, "DAI Format master is not found\n");
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return -EINVAL;
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}
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switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK |
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SND_SOC_DAIFMT_INV_MASK)) {
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case (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF):
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break;
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case (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF):
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case (SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF):
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serial_format |= TAS2552_DATAFORMAT_DSP;
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break;
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case (SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF):
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serial_format |= TAS2552_DATAFORMAT_RIGHT_J;
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break;
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case (SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF):
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serial_format |= TAS2552_DATAFORMAT_LEFT_J;
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break;
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default:
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dev_vdbg(codec->dev, "DAI Format is not found\n");
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return -EINVAL;
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}
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tas2552->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
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snd_soc_update_bits(codec, TAS2552_SER_CTRL_1, TAS2552_DAI_FMT_MASK,
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serial_format);
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return 0;
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}
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static int tas2552_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
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unsigned int freq, int dir)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct tas2552_data *tas2552 = dev_get_drvdata(codec->dev);
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u8 reg, mask, val;
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switch (clk_id) {
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case TAS2552_PLL_CLKIN_MCLK:
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case TAS2552_PLL_CLKIN_BCLK:
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case TAS2552_PLL_CLKIN_IVCLKIN:
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case TAS2552_PLL_CLKIN_1_8_FIXED:
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mask = TAS2552_PLL_SRC_MASK;
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val = (clk_id << 3) & mask; /* bit 4:5 in the register */
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reg = TAS2552_CFG_1;
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tas2552->pll_clkin = freq;
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break;
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case TAS2552_PDM_CLK_PLL:
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case TAS2552_PDM_CLK_IVCLKIN:
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case TAS2552_PDM_CLK_BCLK:
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case TAS2552_PDM_CLK_MCLK:
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mask = TAS2552_PDM_CLK_SEL_MASK;
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val = (clk_id >> 1) & mask; /* bit 0:1 in the register */
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reg = TAS2552_PDM_CFG;
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tas2552->pdm_clk = freq;
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break;
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default:
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dev_err(codec->dev, "Invalid clk id: %d\n", clk_id);
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return -EINVAL;
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}
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snd_soc_update_bits(codec, reg, mask, val);
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return 0;
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}
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static int tas2552_set_dai_tdm_slot(struct snd_soc_dai *dai,
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unsigned int tx_mask, unsigned int rx_mask,
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int slots, int slot_width)
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{
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struct snd_soc_codec *codec = dai->codec;
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struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
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unsigned int lsb;
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if (unlikely(!tx_mask)) {
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dev_err(codec->dev, "tx masks need to be non 0\n");
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return -EINVAL;
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}
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/* TDM based on DSP mode requires slots to be adjacent */
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lsb = __ffs(tx_mask);
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if ((lsb + 1) != __fls(tx_mask)) {
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dev_err(codec->dev, "Invalid mask, slots must be adjacent\n");
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return -EINVAL;
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}
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tas2552->tdm_delay = lsb * slot_width;
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/* DOUT in high-impedance on inactive bit clocks */
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snd_soc_update_bits(codec, TAS2552_DOUT,
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TAS2552_SDOUT_TRISTATE, TAS2552_SDOUT_TRISTATE);
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return 0;
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}
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static int tas2552_mute(struct snd_soc_dai *dai, int mute)
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{
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u8 cfg1_reg = 0;
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struct snd_soc_codec *codec = dai->codec;
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if (mute)
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cfg1_reg |= TAS2552_MUTE;
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snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_MUTE, cfg1_reg);
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return 0;
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}
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#ifdef CONFIG_PM
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static int tas2552_runtime_suspend(struct device *dev)
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{
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struct tas2552_data *tas2552 = dev_get_drvdata(dev);
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tas2552_sw_shutdown(tas2552, 1);
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regcache_cache_only(tas2552->regmap, true);
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regcache_mark_dirty(tas2552->regmap);
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if (tas2552->enable_gpio)
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gpiod_set_value(tas2552->enable_gpio, 0);
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return 0;
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}
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static int tas2552_runtime_resume(struct device *dev)
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{
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struct tas2552_data *tas2552 = dev_get_drvdata(dev);
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if (tas2552->enable_gpio)
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gpiod_set_value(tas2552->enable_gpio, 1);
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tas2552_sw_shutdown(tas2552, 0);
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regcache_cache_only(tas2552->regmap, false);
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regcache_sync(tas2552->regmap);
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return 0;
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}
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#endif
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static const struct dev_pm_ops tas2552_pm = {
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SET_RUNTIME_PM_OPS(tas2552_runtime_suspend, tas2552_runtime_resume,
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NULL)
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};
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static struct snd_soc_dai_ops tas2552_speaker_dai_ops = {
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.hw_params = tas2552_hw_params,
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.prepare = tas2552_prepare,
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.set_sysclk = tas2552_set_dai_sysclk,
|
|
.set_fmt = tas2552_set_dai_fmt,
|
|
.set_tdm_slot = tas2552_set_dai_tdm_slot,
|
|
.digital_mute = tas2552_mute,
|
|
};
|
|
|
|
/* 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, -7, 100, 0);
|
|
|
|
static const struct snd_kcontrol_new tas2552_snd_controls[] = {
|
|
SOC_SINGLE_TLV("Speaker Driver Playback Volume",
|
|
TAS2552_PGA_GAIN, 0, 0x1f, 0, dac_tlv),
|
|
};
|
|
|
|
static int tas2552_codec_probe(struct snd_soc_codec *codec)
|
|
{
|
|
struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
|
|
int ret;
|
|
|
|
tas2552->codec = codec;
|
|
|
|
ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies),
|
|
tas2552->supplies);
|
|
|
|
if (ret != 0) {
|
|
dev_err(codec->dev, "Failed to enable supplies: %d\n",
|
|
ret);
|
|
return ret;
|
|
}
|
|
|
|
if (tas2552->enable_gpio)
|
|
gpiod_set_value(tas2552->enable_gpio, 1);
|
|
|
|
ret = pm_runtime_get_sync(codec->dev);
|
|
if (ret < 0) {
|
|
dev_err(codec->dev, "Enabling device failed: %d\n",
|
|
ret);
|
|
goto probe_fail;
|
|
}
|
|
|
|
snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_MUTE, TAS2552_MUTE);
|
|
snd_soc_write(codec, TAS2552_CFG_3, TAS2552_I2S_OUT_SEL |
|
|
TAS2552_DIN_SRC_SEL_AVG_L_R | TAS2552_88_96KHZ);
|
|
snd_soc_write(codec, TAS2552_DOUT, TAS2552_PDM_DATA_I);
|
|
snd_soc_write(codec, TAS2552_OUTPUT_DATA, TAS2552_PDM_DATA_V_I | 0x8);
|
|
snd_soc_write(codec, TAS2552_BOOST_PT_CTRL, TAS2552_APT_DELAY_200 |
|
|
TAS2552_APT_THRESH_2_1_7);
|
|
|
|
snd_soc_write(codec, TAS2552_CFG_2, TAS2552_BOOST_EN |
|
|
TAS2552_APT_EN | TAS2552_LIM_EN);
|
|
|
|
return 0;
|
|
|
|
probe_fail:
|
|
if (tas2552->enable_gpio)
|
|
gpiod_set_value(tas2552->enable_gpio, 0);
|
|
|
|
regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies),
|
|
tas2552->supplies);
|
|
return -EIO;
|
|
}
|
|
|
|
static int tas2552_codec_remove(struct snd_soc_codec *codec)
|
|
{
|
|
struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
|
|
|
|
pm_runtime_put(codec->dev);
|
|
|
|
if (tas2552->enable_gpio)
|
|
gpiod_set_value(tas2552->enable_gpio, 0);
|
|
|
|
return 0;
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|
|
static int tas2552_suspend(struct snd_soc_codec *codec)
|
|
{
|
|
struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
|
|
int ret;
|
|
|
|
ret = regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies),
|
|
tas2552->supplies);
|
|
|
|
if (ret != 0)
|
|
dev_err(codec->dev, "Failed to disable supplies: %d\n",
|
|
ret);
|
|
return 0;
|
|
}
|
|
|
|
static int tas2552_resume(struct snd_soc_codec *codec)
|
|
{
|
|
struct tas2552_data *tas2552 = snd_soc_codec_get_drvdata(codec);
|
|
int ret;
|
|
|
|
ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies),
|
|
tas2552->supplies);
|
|
|
|
if (ret != 0) {
|
|
dev_err(codec->dev, "Failed to enable supplies: %d\n",
|
|
ret);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#else
|
|
#define tas2552_suspend NULL
|
|
#define tas2552_resume NULL
|
|
#endif
|
|
|
|
static struct snd_soc_codec_driver soc_codec_dev_tas2552 = {
|
|
.probe = tas2552_codec_probe,
|
|
.remove = tas2552_codec_remove,
|
|
.suspend = tas2552_suspend,
|
|
.resume = tas2552_resume,
|
|
.ignore_pmdown_time = true,
|
|
|
|
.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),
|
|
};
|
|
|
|
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,
|
|
const struct i2c_device_id *id)
|
|
{
|
|
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(dev, "enable", GPIOD_OUT_LOW);
|
|
if (IS_ERR(data->enable_gpio)) {
|
|
if (PTR_ERR(data->enable_gpio) == -EPROBE_DEFER)
|
|
return -EPROBE_DEFER;
|
|
|
|
data->enable_gpio = NULL;;
|
|
}
|
|
|
|
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 = snd_soc_register_codec(&client->dev,
|
|
&soc_codec_dev_tas2552,
|
|
tas2552_dai, ARRAY_SIZE(tas2552_dai));
|
|
if (ret < 0)
|
|
dev_err(&client->dev, "Failed to register codec: %d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int tas2552_i2c_remove(struct i2c_client *client)
|
|
{
|
|
snd_soc_unregister_codec(&client->dev);
|
|
return 0;
|
|
}
|
|
|
|
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",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = of_match_ptr(tas2552_of_match),
|
|
.pm = &tas2552_pm,
|
|
},
|
|
.probe = 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");
|