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android-kvm / linux / c1d6105869464635d8a2bcf87a43c05f4c0cfca4 / . / sound / soc / codecs / tlv320adc3xxx.c
blob: 52bb55724724448015f494f02f15adb73cb1995c [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0-only
//
// Based on sound/soc/codecs/tlv320aic3x.c by Vladimir Barinov
//
// Copyright (C) 2010 Mistral Solutions Pvt Ltd.
// Author: Shahina Shaik <shahina.s@mistralsolutions.com>
//
// Copyright (C) 2014-2018, Ambarella, Inc.
// Author: Dongge wu <dgwu@ambarella.com>
//
// Copyright (C) 2021 Axis Communications AB
// Author: Ricard Wanderlof <ricardw@axis.com>
//
#include <dt-bindings/sound/tlv320adc3xxx.h>
#include <linux/clk.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/io.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/gpio/driver.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/cdev.h>
#include <linux/of_gpio.h>
#include <linux/slab.h>
#include <sound/core.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/initval.h>
/*
* General definitions defining exported functionality.
*/
#define ADC3XXX_MICBIAS_PINS 2
/* Number of GPIO pins exposed via the gpiolib interface */
#define ADC3XXX_GPIOS_MAX 2
#define ADC3XXX_RATES SNDRV_PCM_RATE_8000_96000
#define ADC3XXX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S20_3LE | \
SNDRV_PCM_FMTBIT_S24_3LE | \
SNDRV_PCM_FMTBIT_S32_LE)
/*
* PLL modes, to be used for clk_id for set_sysclk callback.
*
* The default behavior (AUTO) is to take the first matching entry in the clock
* table, which is intended to be the PLL based one if there is more than one.
*
* Setting the clock source using simple-card (clocks or
* system-clock-frequency property) sets clk_id = 0 = ADC3XXX_PLL_AUTO.
*/
#define ADC3XXX_PLL_AUTO 0 /* Use first available mode */
#define ADC3XXX_PLL_ENABLE 1 /* Use PLL for clock generation */
#define ADC3XXX_PLL_BYPASS 2 /* Don't use PLL for clock generation */
/* Register definitions. */
#define ADC3XXX_PAGE_SIZE 128
#define ADC3XXX_REG(page, reg) ((page * ADC3XXX_PAGE_SIZE) + reg)
/*
* Page 0 registers.
*/
#define ADC3XXX_PAGE_SELECT ADC3XXX_REG(0, 0)
#define ADC3XXX_RESET ADC3XXX_REG(0, 1)
/* 2-3 Reserved */
#define ADC3XXX_CLKGEN_MUX ADC3XXX_REG(0, 4)
#define ADC3XXX_PLL_PROG_PR ADC3XXX_REG(0, 5)
#define ADC3XXX_PLL_PROG_J ADC3XXX_REG(0, 6)
#define ADC3XXX_PLL_PROG_D_MSB ADC3XXX_REG(0, 7)
#define ADC3XXX_PLL_PROG_D_LSB ADC3XXX_REG(0, 8)
/* 9-17 Reserved */
#define ADC3XXX_ADC_NADC ADC3XXX_REG(0, 18)
#define ADC3XXX_ADC_MADC ADC3XXX_REG(0, 19)
#define ADC3XXX_ADC_AOSR ADC3XXX_REG(0, 20)
#define ADC3XXX_ADC_IADC ADC3XXX_REG(0, 21)
/* 23-24 Reserved */
#define ADC3XXX_CLKOUT_MUX ADC3XXX_REG(0, 25)
#define ADC3XXX_CLKOUT_M_DIV ADC3XXX_REG(0, 26)
#define ADC3XXX_INTERFACE_CTRL_1 ADC3XXX_REG(0, 27)
#define ADC3XXX_CH_OFFSET_1 ADC3XXX_REG(0, 28)
#define ADC3XXX_INTERFACE_CTRL_2 ADC3XXX_REG(0, 29)
#define ADC3XXX_BCLK_N_DIV ADC3XXX_REG(0, 30)
#define ADC3XXX_INTERFACE_CTRL_3 ADC3XXX_REG(0, 31)
#define ADC3XXX_INTERFACE_CTRL_4 ADC3XXX_REG(0, 32)
#define ADC3XXX_INTERFACE_CTRL_5 ADC3XXX_REG(0, 33)
#define ADC3XXX_I2S_SYNC ADC3XXX_REG(0, 34)
/* 35 Reserved */
#define ADC3XXX_ADC_FLAG ADC3XXX_REG(0, 36)
#define ADC3XXX_CH_OFFSET_2 ADC3XXX_REG(0, 37)
#define ADC3XXX_I2S_TDM_CTRL ADC3XXX_REG(0, 38)
/* 39-41 Reserved */
#define ADC3XXX_INTR_FLAG_1 ADC3XXX_REG(0, 42)
#define ADC3XXX_INTR_FLAG_2 ADC3XXX_REG(0, 43)
/* 44 Reserved */
#define ADC3XXX_INTR_FLAG_ADC1 ADC3XXX_REG(0, 45)
/* 46 Reserved */
#define ADC3XXX_INTR_FLAG_ADC2 ADC3XXX_REG(0, 47)
#define ADC3XXX_INT1_CTRL ADC3XXX_REG(0, 48)
#define ADC3XXX_INT2_CTRL ADC3XXX_REG(0, 49)
/* 50 Reserved */
#define ADC3XXX_GPIO2_CTRL ADC3XXX_REG(0, 51)
#define ADC3XXX_GPIO1_CTRL ADC3XXX_REG(0, 52)
#define ADC3XXX_DOUT_CTRL ADC3XXX_REG(0, 53)
/* 54-56 Reserved */
#define ADC3XXX_SYNC_CTRL_1 ADC3XXX_REG(0, 57)
#define ADC3XXX_SYNC_CTRL_2 ADC3XXX_REG(0, 58)
#define ADC3XXX_CIC_GAIN_CTRL ADC3XXX_REG(0, 59)
/* 60 Reserved */
#define ADC3XXX_PRB_SELECT ADC3XXX_REG(0, 61)
#define ADC3XXX_INST_MODE_CTRL ADC3XXX_REG(0, 62)
/* 63-79 Reserved */
#define ADC3XXX_MIC_POLARITY_CTRL ADC3XXX_REG(0, 80)
#define ADC3XXX_ADC_DIGITAL ADC3XXX_REG(0, 81)
#define ADC3XXX_ADC_FGA ADC3XXX_REG(0, 82)
#define ADC3XXX_LADC_VOL ADC3XXX_REG(0, 83)
#define ADC3XXX_RADC_VOL ADC3XXX_REG(0, 84)
#define ADC3XXX_ADC_PHASE_COMP ADC3XXX_REG(0, 85)
#define ADC3XXX_LEFT_CHN_AGC_1 ADC3XXX_REG(0, 86)
#define ADC3XXX_LEFT_CHN_AGC_2 ADC3XXX_REG(0, 87)
#define ADC3XXX_LEFT_CHN_AGC_3 ADC3XXX_REG(0, 88)
#define ADC3XXX_LEFT_CHN_AGC_4 ADC3XXX_REG(0, 89)
#define ADC3XXX_LEFT_CHN_AGC_5 ADC3XXX_REG(0, 90)
#define ADC3XXX_LEFT_CHN_AGC_6 ADC3XXX_REG(0, 91)
#define ADC3XXX_LEFT_CHN_AGC_7 ADC3XXX_REG(0, 92)
#define ADC3XXX_LEFT_AGC_GAIN ADC3XXX_REG(0, 93)
#define ADC3XXX_RIGHT_CHN_AGC_1 ADC3XXX_REG(0, 94)
#define ADC3XXX_RIGHT_CHN_AGC_2 ADC3XXX_REG(0, 95)
#define ADC3XXX_RIGHT_CHN_AGC_3 ADC3XXX_REG(0, 96)
#define ADC3XXX_RIGHT_CHN_AGC_4 ADC3XXX_REG(0, 97)
#define ADC3XXX_RIGHT_CHN_AGC_5 ADC3XXX_REG(0, 98)
#define ADC3XXX_RIGHT_CHN_AGC_6 ADC3XXX_REG(0, 99)
#define ADC3XXX_RIGHT_CHN_AGC_7 ADC3XXX_REG(0, 100)
#define ADC3XXX_RIGHT_AGC_GAIN ADC3XXX_REG(0, 101)
/* 102-127 Reserved */
/*
* Page 1 registers.
*/
/* 1-25 Reserved */
#define ADC3XXX_DITHER_CTRL ADC3XXX_REG(1, 26)
/* 27-50 Reserved */
#define ADC3XXX_MICBIAS_CTRL ADC3XXX_REG(1, 51)
#define ADC3XXX_LEFT_PGA_SEL_1 ADC3XXX_REG(1, 52)
/* 53 Reserved */
#define ADC3XXX_LEFT_PGA_SEL_2 ADC3XXX_REG(1, 54)
#define ADC3XXX_RIGHT_PGA_SEL_1 ADC3XXX_REG(1, 55)
#define ADC3XXX_RIGHT_PGA_SEL_2 ADC3XXX_REG(1, 57)
#define ADC3XXX_LEFT_APGA_CTRL ADC3XXX_REG(1, 59)
#define ADC3XXX_RIGHT_APGA_CTRL ADC3XXX_REG(1, 60)
#define ADC3XXX_LOW_CURRENT_MODES ADC3XXX_REG(1, 61)
#define ADC3XXX_ANALOG_PGA_FLAGS ADC3XXX_REG(1, 62)
/* 63-127 Reserved */
/*
* Page 4 registers. First page of coefficient memory for the miniDSP.
*/
#define ADC3XXX_LEFT_ADC_IIR_COEFF_N0_MSB ADC3XXX_REG(4, 8)
#define ADC3XXX_LEFT_ADC_IIR_COEFF_N0_LSB ADC3XXX_REG(4, 9)
#define ADC3XXX_LEFT_ADC_IIR_COEFF_N1_MSB ADC3XXX_REG(4, 10)
#define ADC3XXX_LEFT_ADC_IIR_COEFF_N1_LSB ADC3XXX_REG(4, 11)
#define ADC3XXX_LEFT_ADC_IIR_COEFF_D1_MSB ADC3XXX_REG(4, 12)
#define ADC3XXX_LEFT_ADC_IIR_COEFF_D1_LSB ADC3XXX_REG(4, 13)
#define ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_MSB ADC3XXX_REG(4, 72)
#define ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_LSB ADC3XXX_REG(4, 73)
#define ADC3XXX_RIGHT_ADC_IIR_COEFF_N1_MSB ADC3XXX_REG(4, 74)
#define ADC3XXX_RIGHT_ADC_IIR_COEFF_N1_LSB ADC3XXX_REG(4, 75)
#define ADC3XXX_RIGHT_ADC_IIR_COEFF_D1_MSB ADC3XXX_REG(4, 76)
#define ADC3XXX_RIGHT_ADC_IIR_COEFF_D1_LSB ADC3XXX_REG(4, 77)
/*
* Register bits.
*/
/* PLL Enable bits */
#define ADC3XXX_ENABLE_PLL_SHIFT 7
#define ADC3XXX_ENABLE_PLL (1 << ADC3XXX_ENABLE_PLL_SHIFT)
#define ADC3XXX_ENABLE_NADC_SHIFT 7
#define ADC3XXX_ENABLE_NADC (1 << ADC3XXX_ENABLE_NADC_SHIFT)
#define ADC3XXX_ENABLE_MADC_SHIFT 7
#define ADC3XXX_ENABLE_MADC (1 << ADC3XXX_ENABLE_MADC_SHIFT)
#define ADC3XXX_ENABLE_BCLK_SHIFT 7
#define ADC3XXX_ENABLE_BCLK (1 << ADC3XXX_ENABLE_BCLK_SHIFT)
/* Power bits */
#define ADC3XXX_LADC_PWR_ON 0x80
#define ADC3XXX_RADC_PWR_ON 0x40
#define ADC3XXX_SOFT_RESET 0x01
#define ADC3XXX_BCLK_MASTER 0x08
#define ADC3XXX_WCLK_MASTER 0x04
/* Interface register masks */
#define ADC3XXX_FORMAT_MASK 0xc0
#define ADC3XXX_FORMAT_SHIFT 6
#define ADC3XXX_WLENGTH_MASK 0x30
#define ADC3XXX_WLENGTH_SHIFT 4
#define ADC3XXX_CLKDIR_MASK 0x0c
#define ADC3XXX_CLKDIR_SHIFT 2
/* Interface register bit patterns */
#define ADC3XXX_FORMAT_I2S (0 << ADC3XXX_FORMAT_SHIFT)
#define ADC3XXX_FORMAT_DSP (1 << ADC3XXX_FORMAT_SHIFT)
#define ADC3XXX_FORMAT_RJF (2 << ADC3XXX_FORMAT_SHIFT)
#define ADC3XXX_FORMAT_LJF (3 << ADC3XXX_FORMAT_SHIFT)
#define ADC3XXX_IFACE_16BITS (0 << ADC3XXX_WLENGTH_SHIFT)
#define ADC3XXX_IFACE_20BITS (1 << ADC3XXX_WLENGTH_SHIFT)
#define ADC3XXX_IFACE_24BITS (2 << ADC3XXX_WLENGTH_SHIFT)
#define ADC3XXX_IFACE_32BITS (3 << ADC3XXX_WLENGTH_SHIFT)
/* PLL P/R bit offsets */
#define ADC3XXX_PLLP_SHIFT 4
#define ADC3XXX_PLLR_SHIFT 0
#define ADC3XXX_PLL_PR_MASK 0x7f
#define ADC3XXX_PLLJ_MASK 0x3f
#define ADC3XXX_PLLD_MSB_MASK 0x3f
#define ADC3XXX_PLLD_LSB_MASK 0xff
#define ADC3XXX_NADC_MASK 0x7f
#define ADC3XXX_MADC_MASK 0x7f
#define ADC3XXX_AOSR_MASK 0xff
#define ADC3XXX_IADC_MASK 0xff
#define ADC3XXX_BDIV_MASK 0x7f
/* PLL_CLKIN bits */
#define ADC3XXX_PLL_CLKIN_SHIFT 2
#define ADC3XXX_PLL_CLKIN_MCLK 0x0
#define ADC3XXX_PLL_CLKIN_BCLK 0x1
#define ADC3XXX_PLL_CLKIN_ZERO 0x3
/* CODEC_CLKIN bits */
#define ADC3XXX_CODEC_CLKIN_SHIFT 0
#define ADC3XXX_CODEC_CLKIN_MCLK 0x0
#define ADC3XXX_CODEC_CLKIN_BCLK 0x1
#define ADC3XXX_CODEC_CLKIN_PLL_CLK 0x3
#define ADC3XXX_USE_PLL ((ADC3XXX_PLL_CLKIN_MCLK << ADC3XXX_PLL_CLKIN_SHIFT) | \
(ADC3XXX_CODEC_CLKIN_PLL_CLK << ADC3XXX_CODEC_CLKIN_SHIFT))
#define ADC3XXX_NO_PLL ((ADC3XXX_PLL_CLKIN_ZERO << ADC3XXX_PLL_CLKIN_SHIFT) | \
(ADC3XXX_CODEC_CLKIN_MCLK << ADC3XXX_CODEC_CLKIN_SHIFT))
/* Analog PGA control bits */
#define ADC3XXX_LPGA_MUTE 0x80
#define ADC3XXX_RPGA_MUTE 0x80
#define ADC3XXX_LPGA_GAIN_MASK 0x7f
#define ADC3XXX_RPGA_GAIN_MASK 0x7f
/* ADC current modes */
#define ADC3XXX_ADC_LOW_CURR_MODE 0x01
/* Left ADC Input selection bits */
#define ADC3XXX_LCH_SEL1_SHIFT 0
#define ADC3XXX_LCH_SEL2_SHIFT 2
#define ADC3XXX_LCH_SEL3_SHIFT 4
#define ADC3XXX_LCH_SEL4_SHIFT 6
#define ADC3XXX_LCH_SEL1X_SHIFT 0
#define ADC3XXX_LCH_SEL2X_SHIFT 2
#define ADC3XXX_LCH_SEL3X_SHIFT 4
#define ADC3XXX_LCH_COMMON_MODE 0x40
#define ADC3XXX_BYPASS_LPGA 0x80
/* Right ADC Input selection bits */
#define ADC3XXX_RCH_SEL1_SHIFT 0
#define ADC3XXX_RCH_SEL2_SHIFT 2
#define ADC3XXX_RCH_SEL3_SHIFT 4
#define ADC3XXX_RCH_SEL4_SHIFT 6
#define ADC3XXX_RCH_SEL1X_SHIFT 0
#define ADC3XXX_RCH_SEL2X_SHIFT 2
#define ADC3XXX_RCH_SEL3X_SHIFT 4
#define ADC3XXX_RCH_COMMON_MODE 0x40
#define ADC3XXX_BYPASS_RPGA 0x80
/* MICBIAS control bits */
#define ADC3XXX_MICBIAS_MASK 0x2
#define ADC3XXX_MICBIAS1_SHIFT 5
#define ADC3XXX_MICBIAS2_SHIFT 3
#define ADC3XXX_ADC_MAX_VOLUME 64
#define ADC3XXX_ADC_POS_VOL 24
/* GPIO control bits (GPIO1_CTRL and GPIO2_CTRL) */
#define ADC3XXX_GPIO_CTRL_CFG_MASK 0x3c
#define ADC3XXX_GPIO_CTRL_CFG_SHIFT 2
#define ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK 0x01
#define ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_SHIFT 0
#define ADC3XXX_GPIO_CTRL_INPUT_VALUE_MASK 0x02
#define ADC3XXX_GPIO_CTRL_INPUT_VALUE_SHIFT 1
enum adc3xxx_type {
ADC3001 = 0,
ADC3101
};
struct adc3xxx {
struct device *dev;
enum adc3xxx_type type;
struct clk *mclk;
struct regmap *regmap;
struct gpio_desc *rst_pin;
unsigned int pll_mode;
unsigned int sysclk;
unsigned int gpio_cfg[ADC3XXX_GPIOS_MAX]; /* value+1 (0 => not set) */
unsigned int micbias_vg[ADC3XXX_MICBIAS_PINS];
int master;
u8 page_no;
int use_pll;
struct gpio_chip gpio_chip;
};
static const unsigned int adc3xxx_gpio_ctrl_reg[ADC3XXX_GPIOS_MAX] = {
ADC3XXX_GPIO1_CTRL,
ADC3XXX_GPIO2_CTRL
};
static const unsigned int adc3xxx_micbias_shift[ADC3XXX_MICBIAS_PINS] = {
ADC3XXX_MICBIAS1_SHIFT,
ADC3XXX_MICBIAS2_SHIFT
};
static const struct reg_default adc3xxx_defaults[] = {
/* Page 0 */
{ 0, 0x00 }, { 1, 0x00 }, { 2, 0x00 }, { 3, 0x00 },
{ 4, 0x00 }, { 5, 0x11 }, { 6, 0x04 }, { 7, 0x00 },
{ 8, 0x00 }, { 9, 0x00 }, { 10, 0x00 }, { 11, 0x00 },
{ 12, 0x00 }, { 13, 0x00 }, { 14, 0x00 }, { 15, 0x00 },
{ 16, 0x00 }, { 17, 0x00 }, { 18, 0x01 }, { 19, 0x01 },
{ 20, 0x80 }, { 21, 0x80 }, { 22, 0x04 }, { 23, 0x00 },
{ 24, 0x00 }, { 25, 0x00 }, { 26, 0x01 }, { 27, 0x00 },
{ 28, 0x00 }, { 29, 0x02 }, { 30, 0x01 }, { 31, 0x00 },
{ 32, 0x00 }, { 33, 0x10 }, { 34, 0x00 }, { 35, 0x00 },
{ 36, 0x00 }, { 37, 0x00 }, { 38, 0x02 }, { 39, 0x00 },
{ 40, 0x00 }, { 41, 0x00 }, { 42, 0x00 }, { 43, 0x00 },
{ 44, 0x00 }, { 45, 0x00 }, { 46, 0x00 }, { 47, 0x00 },
{ 48, 0x00 }, { 49, 0x00 }, { 50, 0x00 }, { 51, 0x00 },
{ 52, 0x00 }, { 53, 0x12 }, { 54, 0x00 }, { 55, 0x00 },
{ 56, 0x00 }, { 57, 0x00 }, { 58, 0x00 }, { 59, 0x44 },
{ 60, 0x00 }, { 61, 0x01 }, { 62, 0x00 }, { 63, 0x00 },
{ 64, 0x00 }, { 65, 0x00 }, { 66, 0x00 }, { 67, 0x00 },
{ 68, 0x00 }, { 69, 0x00 }, { 70, 0x00 }, { 71, 0x00 },
{ 72, 0x00 }, { 73, 0x00 }, { 74, 0x00 }, { 75, 0x00 },
{ 76, 0x00 }, { 77, 0x00 }, { 78, 0x00 }, { 79, 0x00 },
{ 80, 0x00 }, { 81, 0x00 }, { 82, 0x88 }, { 83, 0x00 },
{ 84, 0x00 }, { 85, 0x00 }, { 86, 0x00 }, { 87, 0x00 },
{ 88, 0x7f }, { 89, 0x00 }, { 90, 0x00 }, { 91, 0x00 },
{ 92, 0x00 }, { 93, 0x00 }, { 94, 0x00 }, { 95, 0x00 },
{ 96, 0x7f }, { 97, 0x00 }, { 98, 0x00 }, { 99, 0x00 },
{ 100, 0x00 }, { 101, 0x00 }, { 102, 0x00 }, { 103, 0x00 },
{ 104, 0x00 }, { 105, 0x00 }, { 106, 0x00 }, { 107, 0x00 },
{ 108, 0x00 }, { 109, 0x00 }, { 110, 0x00 }, { 111, 0x00 },
{ 112, 0x00 }, { 113, 0x00 }, { 114, 0x00 }, { 115, 0x00 },
{ 116, 0x00 }, { 117, 0x00 }, { 118, 0x00 }, { 119, 0x00 },
{ 120, 0x00 }, { 121, 0x00 }, { 122, 0x00 }, { 123, 0x00 },
{ 124, 0x00 }, { 125, 0x00 }, { 126, 0x00 }, { 127, 0x00 },
/* Page 1 */
{ 128, 0x00 }, { 129, 0x00 }, { 130, 0x00 }, { 131, 0x00 },
{ 132, 0x00 }, { 133, 0x00 }, { 134, 0x00 }, { 135, 0x00 },
{ 136, 0x00 }, { 137, 0x00 }, { 138, 0x00 }, { 139, 0x00 },
{ 140, 0x00 }, { 141, 0x00 }, { 142, 0x00 }, { 143, 0x00 },
{ 144, 0x00 }, { 145, 0x00 }, { 146, 0x00 }, { 147, 0x00 },
{ 148, 0x00 }, { 149, 0x00 }, { 150, 0x00 }, { 151, 0x00 },
{ 152, 0x00 }, { 153, 0x00 }, { 154, 0x00 }, { 155, 0x00 },
{ 156, 0x00 }, { 157, 0x00 }, { 158, 0x00 }, { 159, 0x00 },
{ 160, 0x00 }, { 161, 0x00 }, { 162, 0x00 }, { 163, 0x00 },
{ 164, 0x00 }, { 165, 0x00 }, { 166, 0x00 }, { 167, 0x00 },
{ 168, 0x00 }, { 169, 0x00 }, { 170, 0x00 }, { 171, 0x00 },
{ 172, 0x00 }, { 173, 0x00 }, { 174, 0x00 }, { 175, 0x00 },
{ 176, 0x00 }, { 177, 0x00 }, { 178, 0x00 }, { 179, 0x00 },
{ 180, 0xff }, { 181, 0x00 }, { 182, 0x3f }, { 183, 0xff },
{ 184, 0x00 }, { 185, 0x3f }, { 186, 0x00 }, { 187, 0x80 },
{ 188, 0x80 }, { 189, 0x00 }, { 190, 0x00 }, { 191, 0x00 },
/* Page 4 */
{ 1024, 0x00 }, { 1026, 0x01 }, { 1027, 0x17 },
{ 1028, 0x01 }, { 1029, 0x17 }, { 1030, 0x7d }, { 1031, 0xd3 },
{ 1032, 0x7f }, { 1033, 0xff }, { 1034, 0x00 }, { 1035, 0x00 },
{ 1036, 0x00 }, { 1037, 0x00 }, { 1038, 0x7f }, { 1039, 0xff },
{ 1040, 0x00 }, { 1041, 0x00 }, { 1042, 0x00 }, { 1043, 0x00 },
{ 1044, 0x00 }, { 1045, 0x00 }, { 1046, 0x00 }, { 1047, 0x00 },
{ 1048, 0x7f }, { 1049, 0xff }, { 1050, 0x00 }, { 1051, 0x00 },
{ 1052, 0x00 }, { 1053, 0x00 }, { 1054, 0x00 }, { 1055, 0x00 },
{ 1056, 0x00 }, { 1057, 0x00 }, { 1058, 0x7f }, { 1059, 0xff },
{ 1060, 0x00 }, { 1061, 0x00 }, { 1062, 0x00 }, { 1063, 0x00 },
{ 1064, 0x00 }, { 1065, 0x00 }, { 1066, 0x00 }, { 1067, 0x00 },
{ 1068, 0x7f }, { 1069, 0xff }, { 1070, 0x00 }, { 1071, 0x00 },
{ 1072, 0x00 }, { 1073, 0x00 }, { 1074, 0x00 }, { 1075, 0x00 },
{ 1076, 0x00 }, { 1077, 0x00 }, { 1078, 0x7f }, { 1079, 0xff },
{ 1080, 0x00 }, { 1081, 0x00 }, { 1082, 0x00 }, { 1083, 0x00 },
{ 1084, 0x00 }, { 1085, 0x00 }, { 1086, 0x00 }, { 1087, 0x00 },
{ 1088, 0x00 }, { 1089, 0x00 }, { 1090, 0x00 }, { 1091, 0x00 },
{ 1092, 0x00 }, { 1093, 0x00 }, { 1094, 0x00 }, { 1095, 0x00 },
{ 1096, 0x00 }, { 1097, 0x00 }, { 1098, 0x00 }, { 1099, 0x00 },
{ 1100, 0x00 }, { 1101, 0x00 }, { 1102, 0x00 }, { 1103, 0x00 },
{ 1104, 0x00 }, { 1105, 0x00 }, { 1106, 0x00 }, { 1107, 0x00 },
{ 1108, 0x00 }, { 1109, 0x00 }, { 1110, 0x00 }, { 1111, 0x00 },
{ 1112, 0x00 }, { 1113, 0x00 }, { 1114, 0x00 }, { 1115, 0x00 },
{ 1116, 0x00 }, { 1117, 0x00 }, { 1118, 0x00 }, { 1119, 0x00 },
{ 1120, 0x00 }, { 1121, 0x00 }, { 1122, 0x00 }, { 1123, 0x00 },
{ 1124, 0x00 }, { 1125, 0x00 }, { 1126, 0x00 }, { 1127, 0x00 },
{ 1128, 0x00 }, { 1129, 0x00 }, { 1130, 0x00 }, { 1131, 0x00 },
{ 1132, 0x00 }, { 1133, 0x00 }, { 1134, 0x00 }, { 1135, 0x00 },
{ 1136, 0x00 }, { 1137, 0x00 }, { 1138, 0x00 }, { 1139, 0x00 },
{ 1140, 0x00 }, { 1141, 0x00 }, { 1142, 0x00 }, { 1143, 0x00 },
{ 1144, 0x00 }, { 1145, 0x00 }, { 1146, 0x00 }, { 1147, 0x00 },
{ 1148, 0x00 }, { 1149, 0x00 }, { 1150, 0x00 }, { 1151, 0x00 },
};
static bool adc3xxx_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case ADC3XXX_RESET:
return true;
default:
return false;
}
}
static const struct regmap_range_cfg adc3xxx_ranges[] = {
{
.range_min = 0,
.range_max = 5 * ADC3XXX_PAGE_SIZE,
.selector_reg = ADC3XXX_PAGE_SELECT,
.selector_mask = 0xff,
.selector_shift = 0,
.window_start = 0,
.window_len = ADC3XXX_PAGE_SIZE,
}
};
static const struct regmap_config adc3xxx_regmap = {
.reg_bits = 8,
.val_bits = 8,
.reg_defaults = adc3xxx_defaults,
.num_reg_defaults = ARRAY_SIZE(adc3xxx_defaults),
.volatile_reg = adc3xxx_volatile_reg,
.cache_type = REGCACHE_RBTREE,
.ranges = adc3xxx_ranges,
.num_ranges = ARRAY_SIZE(adc3xxx_ranges),
.max_register = 5 * ADC3XXX_PAGE_SIZE,
};
struct adc3xxx_rate_divs {
u32 mclk;
u32 rate;
u8 pll_p;
u8 pll_r;
u8 pll_j;
u16 pll_d;
u8 nadc;
u8 madc;
u8 aosr;
};
/*
* PLL and Clock settings.
* If p member is 0, PLL is not used.
* The order of the entries in this table have the PLL entries before
* the non-PLL entries, so that the PLL modes are preferred unless
* the PLL mode setting says otherwise.
*/
static const struct adc3xxx_rate_divs adc3xxx_divs[] = {
/* mclk, rate, p, r, j, d, nadc, madc, aosr */
/* 8k rate */
{ 12000000, 8000, 1, 1, 7, 1680, 42, 2, 128 },
{ 12288000, 8000, 1, 1, 7, 0000, 42, 2, 128 },
/* 11.025k rate */
{ 12000000, 11025, 1, 1, 6, 8208, 29, 2, 128 },
/* 16k rate */
{ 12000000, 16000, 1, 1, 7, 1680, 21, 2, 128 },
{ 12288000, 16000, 1, 1, 7, 0000, 21, 2, 128 },
/* 22.05k rate */
{ 12000000, 22050, 1, 1, 7, 560, 15, 2, 128 },
/* 32k rate */
{ 12000000, 32000, 1, 1, 8, 1920, 12, 2, 128 },
{ 12288000, 32000, 1, 1, 8, 0000, 12, 2, 128 },
/* 44.1k rate */
{ 12000000, 44100, 1, 1, 7, 5264, 8, 2, 128 },
/* 48k rate */
{ 12000000, 48000, 1, 1, 7, 1680, 7, 2, 128 },
{ 12288000, 48000, 1, 1, 7, 0000, 7, 2, 128 },
{ 24576000, 48000, 1, 1, 3, 5000, 7, 2, 128 }, /* With PLL */
{ 24576000, 48000, 0, 0, 0, 0000, 2, 2, 128 }, /* Without PLL */
/* 88.2k rate */
{ 12000000, 88200, 1, 1, 7, 5264, 4, 4, 64 },
/* 96k rate */
{ 12000000, 96000, 1, 1, 8, 1920, 4, 4, 64 },
};
static int adc3xxx_get_divs(struct device *dev, int mclk, int rate, int pll_mode)
{
int i;
dev_dbg(dev, "mclk = %d, rate = %d, clock mode %u\n",
mclk, rate, pll_mode);
for (i = 0; i < ARRAY_SIZE(adc3xxx_divs); i++) {
const struct adc3xxx_rate_divs *mode = &adc3xxx_divs[i];
/* Skip this entry if it doesn't fulfill the intended clock
* mode requirement. We consider anything besides the two
* modes below to be the same as ADC3XXX_PLL_AUTO.
*/
if ((pll_mode == ADC3XXX_PLL_BYPASS && mode->pll_p) ||
(pll_mode == ADC3XXX_PLL_ENABLE && !mode->pll_p))
continue;
if (mode->rate == rate && mode->mclk == mclk)
return i;
}
dev_info(dev, "Master clock rate %d and sample rate %d is not supported\n",
mclk, rate);
return -EINVAL;
}
static int adc3xxx_pll_delay(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
/* 10msec delay needed after PLL power-up to allow
* PLL and dividers to stabilize (datasheet p13).
*/
usleep_range(10000, 20000);
return 0;
}
static int adc3xxx_coefficient_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
int numcoeff = kcontrol->private_value >> 16;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = numcoeff;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = 0xffff; /* all coefficients are 16 bit */
return 0;
}
static int adc3xxx_coefficient_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
int numcoeff = kcontrol->private_value >> 16;
int reg = kcontrol->private_value & 0xffff;
int index = 0;
for (index = 0; index < numcoeff; index++) {
unsigned int value_msb, value_lsb, value;
value_msb = snd_soc_component_read(component, reg++);
if ((int)value_msb < 0)
return (int)value_msb;
value_lsb = snd_soc_component_read(component, reg++);
if ((int)value_lsb < 0)
return (int)value_lsb;
value = (value_msb << 8) | value_lsb;
ucontrol->value.integer.value[index] = value;
}
return 0;
}
static int adc3xxx_coefficient_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
int numcoeff = kcontrol->private_value >> 16;
int reg = kcontrol->private_value & 0xffff;
int index = 0;
int ret;
for (index = 0; index < numcoeff; index++) {
unsigned int value = ucontrol->value.integer.value[index];
unsigned int value_msb = (value >> 8) & 0xff;
unsigned int value_lsb = value & 0xff;
ret = snd_soc_component_write(component, reg++, value_msb);
if (ret)
return ret;
ret = snd_soc_component_write(component, reg++, value_lsb);
if (ret)
return ret;
}
return 0;
}
/* All on-chip filters have coefficients which are expressed in terms of
* 16 bit values, so represent them as strings of 16-bit integers.
*/
#define TI_COEFFICIENTS(xname, reg, numcoeffs) { \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
.name = xname, \
.info = adc3xxx_coefficient_info, \
.get = adc3xxx_coefficient_get,\
.put = adc3xxx_coefficient_put, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
.private_value = reg | (numcoeffs << 16) \
}
static const char * const adc_softstepping_text[] = { "1 step", "2 step", "off" };
static SOC_ENUM_SINGLE_DECL(adc_softstepping_enum, ADC3XXX_ADC_DIGITAL, 0,
adc_softstepping_text);
static const char * const multiplier_text[] = { "1", "2", "4", "8", "16", "32", "64", "128" };
static SOC_ENUM_SINGLE_DECL(left_agc_attack_mult_enum,
ADC3XXX_LEFT_CHN_AGC_4, 0, multiplier_text);
static SOC_ENUM_SINGLE_DECL(right_agc_attack_mult_enum,
ADC3XXX_RIGHT_CHN_AGC_4, 0, multiplier_text);
static SOC_ENUM_SINGLE_DECL(left_agc_decay_mult_enum,
ADC3XXX_LEFT_CHN_AGC_5, 0, multiplier_text);
static SOC_ENUM_SINGLE_DECL(right_agc_decay_mult_enum,
ADC3XXX_RIGHT_CHN_AGC_5, 0, multiplier_text);
static const char * const dither_dc_offset_text[] = {
"0mV", "15mV", "30mV", "45mV", "60mV", "75mV", "90mV", "105mV",
"-15mV", "-30mV", "-45mV", "-60mV", "-75mV", "-90mV", "-105mV"
};
static const unsigned int dither_dc_offset_values[] = {
0, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15
};
static SOC_VALUE_ENUM_DOUBLE_DECL(dither_dc_offset_enum,
ADC3XXX_DITHER_CTRL,
4, 0, 0xf, dither_dc_offset_text,
dither_dc_offset_values);
static const DECLARE_TLV_DB_SCALE(pga_tlv, 0, 50, 0);
static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 50, 0);
static const DECLARE_TLV_DB_SCALE(adc_fine_tlv, -40, 10, 0);
/* AGC target: 8 values: -5.5, -8, -10, -12, -14, -17, -20, -24 dB */
/* It would be nice to declare these in the order above, but empirically
* TLV_DB_SCALE_ITEM doesn't take lightly to the increment (second) parameter
* being negative, despite there being examples to the contrary in other
* drivers. So declare these in the order from lowest to highest, and
* set the invert flag in the SOC_DOUBLE_R_TLV declaration instead.
*/
static const DECLARE_TLV_DB_RANGE(agc_target_tlv,
0, 0, TLV_DB_SCALE_ITEM(-2400, 0, 0),
1, 3, TLV_DB_SCALE_ITEM(-2000, 300, 0),
4, 6, TLV_DB_SCALE_ITEM(-1200, 200, 0),
7, 7, TLV_DB_SCALE_ITEM(-550, 0, 0));
/* Since the 'disabled' value (mute) is at the highest value in the dB
* range (i.e. just before -32 dB) rather than the lowest, we need to resort
* to using a TLV_DB_RANGE in order to get the mute value in the right place.
*/
static const DECLARE_TLV_DB_RANGE(agc_thresh_tlv,
0, 30, TLV_DB_SCALE_ITEM(-9000, 200, 0),
31, 31, TLV_DB_SCALE_ITEM(0, 0, 1)); /* disabled = mute */
/* AGC hysteresis: 4 values: 1, 2, 4 dB, disabled (= mute) */
static const DECLARE_TLV_DB_RANGE(agc_hysteresis_tlv,
0, 1, TLV_DB_SCALE_ITEM(100, 100, 0),
2, 2, TLV_DB_SCALE_ITEM(400, 0, 0),
3, 3, TLV_DB_SCALE_ITEM(0, 0, 1)); /* disabled = mute */
static const DECLARE_TLV_DB_SCALE(agc_max_tlv, 0, 50, 0);
/* Input attenuation: -6 dB or 0 dB */
static const DECLARE_TLV_DB_SCALE(input_attenuation_tlv, -600, 600, 0);
static const struct snd_kcontrol_new adc3xxx_snd_controls[] = {
SOC_DOUBLE_R_TLV("PGA Capture Volume", ADC3XXX_LEFT_APGA_CTRL,
ADC3XXX_RIGHT_APGA_CTRL, 0, 80, 0, pga_tlv),
SOC_DOUBLE("PGA Capture Switch", ADC3XXX_ADC_FGA, 7, 3, 1, 1),
SOC_DOUBLE_R("AGC Capture Switch", ADC3XXX_LEFT_CHN_AGC_1,
ADC3XXX_RIGHT_CHN_AGC_1, 7, 1, 0),
SOC_DOUBLE_R_TLV("AGC Target Level Capture Volume", ADC3XXX_LEFT_CHN_AGC_1,
ADC3XXX_RIGHT_CHN_AGC_2, 4, 0x07, 1, agc_target_tlv),
SOC_DOUBLE_R_TLV("AGC Noise Threshold Capture Volume", ADC3XXX_LEFT_CHN_AGC_2,
ADC3XXX_RIGHT_CHN_AGC_2, 1, 0x1f, 1, agc_thresh_tlv),
SOC_DOUBLE_R_TLV("AGC Hysteresis Capture Volume", ADC3XXX_LEFT_CHN_AGC_2,
ADC3XXX_RIGHT_CHN_AGC_2, 6, 3, 0, agc_hysteresis_tlv),
SOC_DOUBLE_R("AGC Clip Stepping Capture Switch", ADC3XXX_LEFT_CHN_AGC_2,
ADC3XXX_RIGHT_CHN_AGC_2, 0, 1, 0),
/*
* Oddly enough, the data sheet says the default value
* for the left/right AGC maximum gain register field
* (ADC3XXX_LEFT/RIGHT_CHN_AGC_3 bits 0..6) is 0x7f = 127
* (verified empirically) even though this value (indeed, above
* 0x50) is specified as 'Reserved. Do not use.' in the accompanying
* table in the data sheet.
*/
SOC_DOUBLE_R_TLV("AGC Maximum Capture Volume", ADC3XXX_LEFT_CHN_AGC_3,
ADC3XXX_RIGHT_CHN_AGC_3, 0, 0x50, 0, agc_max_tlv),
SOC_DOUBLE_R("AGC Attack Time", ADC3XXX_LEFT_CHN_AGC_4,
ADC3XXX_RIGHT_CHN_AGC_4, 3, 0x1f, 0),
/* Would like to have the multipliers as LR pairs, but there is
* no SOC_ENUM_foo which accepts two values in separate registers.
*/
SOC_ENUM("AGC Left Attack Time Multiplier", left_agc_attack_mult_enum),
SOC_ENUM("AGC Right Attack Time Multiplier", right_agc_attack_mult_enum),
SOC_DOUBLE_R("AGC Decay Time", ADC3XXX_LEFT_CHN_AGC_5,
ADC3XXX_RIGHT_CHN_AGC_5, 3, 0x1f, 0),
SOC_ENUM("AGC Left Decay Time Multiplier", left_agc_decay_mult_enum),
SOC_ENUM("AGC Right Decay Time Multiplier", right_agc_decay_mult_enum),
SOC_DOUBLE_R("AGC Noise Debounce", ADC3XXX_LEFT_CHN_AGC_6,
ADC3XXX_RIGHT_CHN_AGC_6, 0, 0x1f, 0),
SOC_DOUBLE_R("AGC Signal Debounce", ADC3XXX_LEFT_CHN_AGC_7,
ADC3XXX_RIGHT_CHN_AGC_7, 0, 0x0f, 0),
/* Read only register */
SOC_DOUBLE_R_S_TLV("AGC Applied Capture Volume", ADC3XXX_LEFT_AGC_GAIN,
ADC3XXX_RIGHT_AGC_GAIN, 0, -24, 40, 6, 0, adc_tlv),
/* ADC soft stepping */
SOC_ENUM("ADC Soft Stepping", adc_softstepping_enum),
/* Left/Right Input attenuation */
SOC_SINGLE_TLV("Left Input IN_1L Capture Volume",
ADC3XXX_LEFT_PGA_SEL_1, 0, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Left Input IN_2L Capture Volume",
ADC3XXX_LEFT_PGA_SEL_1, 2, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Left Input IN_3L Capture Volume",
ADC3XXX_LEFT_PGA_SEL_1, 4, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Left Input IN_1R Capture Volume",
ADC3XXX_LEFT_PGA_SEL_2, 0, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Left Input DIF_2L_3L Capture Volume",
ADC3XXX_LEFT_PGA_SEL_1, 6, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Left Input DIF_1L_1R Capture Volume",
ADC3XXX_LEFT_PGA_SEL_2, 4, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Left Input DIF_2R_3R Capture Volume",
ADC3XXX_LEFT_PGA_SEL_2, 2, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Right Input IN_1R Capture Volume",
ADC3XXX_RIGHT_PGA_SEL_1, 0, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Right Input IN_2R Capture Volume",
ADC3XXX_RIGHT_PGA_SEL_1, 2, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Right Input IN_3R Capture Volume",
ADC3XXX_RIGHT_PGA_SEL_1, 4, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Right Input IN_1L Capture Volume",
ADC3XXX_RIGHT_PGA_SEL_2, 0, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Right Input DIF_2R_3R Capture Volume",
ADC3XXX_RIGHT_PGA_SEL_1, 6, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Right Input DIF_1L_1R Capture Volume",
ADC3XXX_RIGHT_PGA_SEL_2, 4, 1, 1, input_attenuation_tlv),
SOC_SINGLE_TLV("Right Input DIF_2L_3L Capture Volume",
ADC3XXX_RIGHT_PGA_SEL_2, 2, 1, 1, input_attenuation_tlv),
SOC_DOUBLE_R_S_TLV("ADC Volume Control Capture Volume", ADC3XXX_LADC_VOL,
ADC3XXX_RADC_VOL, 0, -24, 40, 6, 0, adc_tlv),
/* Empirically, the following doesn't work the way it's supposed
* to. Values 0, -0.1, -0.2 and -0.3 dB result in the same level, and
* -0.4 dB drops about 0.12 dB on a specific chip.
*/
SOC_DOUBLE_TLV("ADC Fine Volume Control Capture Volume", ADC3XXX_ADC_FGA,
4, 0, 4, 1, adc_fine_tlv),
SOC_SINGLE("Left ADC Unselected CM Bias Capture Switch",
ADC3XXX_LEFT_PGA_SEL_2, 6, 1, 0),
SOC_SINGLE("Right ADC Unselected CM Bias Capture Switch",
ADC3XXX_RIGHT_PGA_SEL_2, 6, 1, 0),
SOC_ENUM("Dither Control DC Offset", dither_dc_offset_enum),
/* Coefficient memory for miniDSP. */
/* For the default PRB_R1 processing block, the only available
* filter is the first order IIR.
*/
TI_COEFFICIENTS("Left ADC IIR Coefficients N0 N1 D1",
ADC3XXX_LEFT_ADC_IIR_COEFF_N0_MSB, 3),
TI_COEFFICIENTS("Right ADC IIR Coefficients N0 N1 D1",
ADC3XXX_RIGHT_ADC_IIR_COEFF_N0_MSB, 3),
};
/* Left input selection, Single Ended inputs and Differential inputs */
static const struct snd_kcontrol_new left_input_mixer_controls[] = {
SOC_DAPM_SINGLE("IN_1L Capture Switch",
ADC3XXX_LEFT_PGA_SEL_1, 1, 0x1, 1),
SOC_DAPM_SINGLE("IN_2L Capture Switch",
ADC3XXX_LEFT_PGA_SEL_1, 3, 0x1, 1),
SOC_DAPM_SINGLE("IN_3L Capture Switch",
ADC3XXX_LEFT_PGA_SEL_1, 5, 0x1, 1),
SOC_DAPM_SINGLE("DIF_2L_3L Capture Switch",
ADC3XXX_LEFT_PGA_SEL_1, 7, 0x1, 1),
SOC_DAPM_SINGLE("DIF_1L_1R Capture Switch",
ADC3XXX_LEFT_PGA_SEL_2, 5, 0x1, 1),
SOC_DAPM_SINGLE("DIF_2R_3R Capture Switch",
ADC3XXX_LEFT_PGA_SEL_2, 3, 0x1, 1),
SOC_DAPM_SINGLE("IN_1R Capture Switch",
ADC3XXX_LEFT_PGA_SEL_2, 1, 0x1, 1),
};
/* Right input selection, Single Ended inputs and Differential inputs */
static const struct snd_kcontrol_new right_input_mixer_controls[] = {
SOC_DAPM_SINGLE("IN_1R Capture Switch",
ADC3XXX_RIGHT_PGA_SEL_1, 1, 0x1, 1),
SOC_DAPM_SINGLE("IN_2R Capture Switch",
ADC3XXX_RIGHT_PGA_SEL_1, 3, 0x1, 1),
SOC_DAPM_SINGLE("IN_3R Capture Switch",
ADC3XXX_RIGHT_PGA_SEL_1, 5, 0x1, 1),
SOC_DAPM_SINGLE("DIF_2R_3R Capture Switch",
ADC3XXX_RIGHT_PGA_SEL_1, 7, 0x1, 1),
SOC_DAPM_SINGLE("DIF_1L_1R Capture Switch",
ADC3XXX_RIGHT_PGA_SEL_2, 5, 0x1, 1),
SOC_DAPM_SINGLE("DIF_2L_3L Capture Switch",
ADC3XXX_RIGHT_PGA_SEL_2, 3, 0x1, 1),
SOC_DAPM_SINGLE("IN_1L Capture Switch",
ADC3XXX_RIGHT_PGA_SEL_2, 1, 0x1, 1),
};
/* Left Digital Mic input for left ADC */
static const struct snd_kcontrol_new left_input_dmic_controls[] = {
SOC_DAPM_SINGLE("Left ADC Capture Switch",
ADC3XXX_ADC_DIGITAL, 3, 0x1, 0),
};
/* Right Digital Mic input for Right ADC */
static const struct snd_kcontrol_new right_input_dmic_controls[] = {
SOC_DAPM_SINGLE("Right ADC Capture Switch",
ADC3XXX_ADC_DIGITAL, 2, 0x1, 0),
};
/* DAPM widgets */
static const struct snd_soc_dapm_widget adc3xxx_dapm_widgets[] = {
/* Left Input Selection */
SND_SOC_DAPM_MIXER("Left Input", SND_SOC_NOPM, 0, 0,
&left_input_mixer_controls[0],
ARRAY_SIZE(left_input_mixer_controls)),
/* Right Input Selection */
SND_SOC_DAPM_MIXER("Right Input", SND_SOC_NOPM, 0, 0,
&right_input_mixer_controls[0],
ARRAY_SIZE(right_input_mixer_controls)),
/* PGA selection */
SND_SOC_DAPM_PGA("Left PGA", ADC3XXX_LEFT_APGA_CTRL, 7, 1, NULL, 0),
SND_SOC_DAPM_PGA("Right PGA", ADC3XXX_RIGHT_APGA_CTRL, 7, 1, NULL, 0),
/* Digital Microphone Input Control for Left/Right ADC */
SND_SOC_DAPM_MIXER("Left DMic Input", SND_SOC_NOPM, 0, 0,
&left_input_dmic_controls[0],
ARRAY_SIZE(left_input_dmic_controls)),
SND_SOC_DAPM_MIXER("Right DMic Input", SND_SOC_NOPM, 0, 0,
&right_input_dmic_controls[0],
ARRAY_SIZE(right_input_dmic_controls)),
/* Left/Right ADC */
SND_SOC_DAPM_ADC("Left ADC", "Left Capture", ADC3XXX_ADC_DIGITAL, 7, 0),
SND_SOC_DAPM_ADC("Right ADC", "Right Capture", ADC3XXX_ADC_DIGITAL, 6, 0),
/* Inputs */
SND_SOC_DAPM_INPUT("IN_1L"),
SND_SOC_DAPM_INPUT("IN_1R"),
SND_SOC_DAPM_INPUT("IN_2L"),
SND_SOC_DAPM_INPUT("IN_2R"),
SND_SOC_DAPM_INPUT("IN_3L"),
SND_SOC_DAPM_INPUT("IN_3R"),
SND_SOC_DAPM_INPUT("DIFL_1L_1R"),
SND_SOC_DAPM_INPUT("DIFL_2L_3L"),
SND_SOC_DAPM_INPUT("DIFL_2R_3R"),
SND_SOC_DAPM_INPUT("DIFR_1L_1R"),
SND_SOC_DAPM_INPUT("DIFR_2L_3L"),
SND_SOC_DAPM_INPUT("DIFR_2R_3R"),
SND_SOC_DAPM_INPUT("DMic_L"),
SND_SOC_DAPM_INPUT("DMic_R"),
/* Digital audio interface output */
SND_SOC_DAPM_AIF_OUT("AIF_OUT", "Capture", 0, SND_SOC_NOPM, 0, 0),
/* Clocks */
SND_SOC_DAPM_SUPPLY("PLL_CLK", ADC3XXX_PLL_PROG_PR, ADC3XXX_ENABLE_PLL_SHIFT,
0, adc3xxx_pll_delay, SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_SUPPLY("ADC_CLK", ADC3XXX_ADC_NADC, ADC3XXX_ENABLE_NADC_SHIFT,
0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ADC_MOD_CLK", ADC3XXX_ADC_MADC, ADC3XXX_ENABLE_MADC_SHIFT,
0, NULL, 0),
/* This refers to the generated BCLK in master mode. */
SND_SOC_DAPM_SUPPLY("BCLK", ADC3XXX_BCLK_N_DIV, ADC3XXX_ENABLE_BCLK_SHIFT,
0, NULL, 0),
};
static const struct snd_soc_dapm_route adc3xxx_intercon[] = {
/* Left input selection from switches */
{ "Left Input", "IN_1L Capture Switch", "IN_1L" },
{ "Left Input", "IN_2L Capture Switch", "IN_2L" },
{ "Left Input", "IN_3L Capture Switch", "IN_3L" },
{ "Left Input", "DIF_2L_3L Capture Switch", "DIFL_2L_3L" },
{ "Left Input", "DIF_1L_1R Capture Switch", "DIFL_1L_1R" },
{ "Left Input", "DIF_2R_3R Capture Switch", "DIFL_2R_3R" },
{ "Left Input", "IN_1R Capture Switch", "IN_1R" },
/* Left input selection to left PGA */
{ "Left PGA", NULL, "Left Input" },
/* Left PGA to left ADC */
{ "Left ADC", NULL, "Left PGA" },
/* Right input selection from switches */
{ "Right Input", "IN_1R Capture Switch", "IN_1R" },
{ "Right Input", "IN_2R Capture Switch", "IN_2R" },
{ "Right Input", "IN_3R Capture Switch", "IN_3R" },
{ "Right Input", "DIF_2R_3R Capture Switch", "DIFR_2R_3R" },
{ "Right Input", "DIF_1L_1R Capture Switch", "DIFR_1L_1R" },
{ "Right Input", "DIF_2L_3L Capture Switch", "DIFR_2L_3L" },
{ "Right Input", "IN_1L Capture Switch", "IN_1L" },
/* Right input selection to right PGA */
{ "Right PGA", NULL, "Right Input" },
/* Right PGA to right ADC */
{ "Right ADC", NULL, "Right PGA" },
/* Left DMic Input selection from switch */
{ "Left DMic Input", "Left ADC Capture Switch", "DMic_L" },
/* Left DMic to left ADC */
{ "Left ADC", NULL, "Left DMic Input" },
/* Right DMic Input selection from switch */
{ "Right DMic Input", "Right ADC Capture Switch", "DMic_R" },
/* Right DMic to right ADC */
{ "Right ADC", NULL, "Right DMic Input" },
/* ADC to AIF output */
{ "AIF_OUT", NULL, "Left ADC" },
{ "AIF_OUT", NULL, "Right ADC" },
/* Clocking */
{ "ADC_MOD_CLK", NULL, "ADC_CLK" },
{ "Left ADC", NULL, "ADC_MOD_CLK" },
{ "Right ADC", NULL, "ADC_MOD_CLK" },
{ "BCLK", NULL, "ADC_CLK" },
};
static const struct snd_soc_dapm_route adc3xxx_pll_intercon[] = {
{ "ADC_CLK", NULL, "PLL_CLK" },
};
static const struct snd_soc_dapm_route adc3xxx_bclk_out_intercon[] = {
{ "AIF_OUT", NULL, "BCLK" }
};
static int adc3xxx_gpio_request(struct gpio_chip *chip, unsigned int offset)
{
struct adc3xxx *adc3xxx = gpiochip_get_data(chip);
if (offset >= ADC3XXX_GPIOS_MAX)
return -EINVAL;
/* GPIO1 is offset 0, GPIO2 is offset 1 */
/* We check here that the GPIO pins are either not configured in the
* DT, or that they purposely are set as outputs.
* (Input mode not yet implemented).
*/
if (adc3xxx->gpio_cfg[offset] != 0 &&
adc3xxx->gpio_cfg[offset] != ADC3XXX_GPIO_GPO + 1)
return -EINVAL;
return 0;
}
static int adc3xxx_gpio_direction_out(struct gpio_chip *chip,
unsigned int offset, int value)
{
struct adc3xxx *adc3xxx = gpiochip_get_data(chip);
/* Set GPIO output function. */
return regmap_update_bits(adc3xxx->regmap,
adc3xxx_gpio_ctrl_reg[offset],
ADC3XXX_GPIO_CTRL_CFG_MASK |
ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK,
ADC3XXX_GPIO_GPO << ADC3XXX_GPIO_CTRL_CFG_SHIFT |
!!value << ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_SHIFT);
}
/* With only GPIO outputs configured, we never get the .direction_out call,
* so we set the output mode and output value in the same call. Hence
* .set in practice does the same thing as .direction_out .
*/
static void adc3xxx_gpio_set(struct gpio_chip *chip, unsigned int offset,
int value)
{
(void) adc3xxx_gpio_direction_out(chip, offset, value);
}
/* Even though we only support GPIO output for now, some GPIO clients
* want to read the current pin state using the .get callback.
*/
static int adc3xxx_gpio_get(struct gpio_chip *chip, unsigned int offset)
{
struct adc3xxx *adc3xxx = gpiochip_get_data(chip);
unsigned int regval;
int ret;
/* We only allow output pins, so just read the value set in the output
* pin register field.
*/
ret = regmap_read(adc3xxx->regmap, adc3xxx_gpio_ctrl_reg[offset], &regval);
if (ret)
return ret;
return !!(regval & ADC3XXX_GPIO_CTRL_OUTPUT_CTRL_MASK);
}
static const struct gpio_chip adc3xxx_gpio_chip = {
.label = "adc3xxx",
.owner = THIS_MODULE,
.request = adc3xxx_gpio_request,
.direction_output = adc3xxx_gpio_direction_out,
.set = adc3xxx_gpio_set,
.get = adc3xxx_gpio_get,
.can_sleep = 1,
};
static void adc3xxx_free_gpio(struct adc3xxx *adc3xxx)
{
#ifdef CONFIG_GPIOLIB
gpiochip_remove(&adc3xxx->gpio_chip);
#endif
}
static void adc3xxx_init_gpio(struct adc3xxx *adc3xxx)
{
int gpio, micbias;
int ret;
adc3xxx->gpio_chip = adc3xxx_gpio_chip;
adc3xxx->gpio_chip.ngpio = ADC3XXX_GPIOS_MAX;
adc3xxx->gpio_chip.parent = adc3xxx->dev;
adc3xxx->gpio_chip.base = -1;
ret = gpiochip_add_data(&adc3xxx->gpio_chip, adc3xxx);
if (ret)
dev_err(adc3xxx->dev, "Failed to add gpios: %d\n", ret);
/* Set up potential GPIO configuration from the devicetree.
* This allows us to set up things which are not software
* controllable GPIOs, such as PDM microphone I/O,
*/
for (gpio = 0; gpio < ADC3XXX_GPIOS_MAX; gpio++) {
unsigned int cfg = adc3xxx->gpio_cfg[gpio];
if (cfg) {
cfg--; /* actual value to use is stored +1 */
regmap_update_bits(adc3xxx->regmap,
adc3xxx_gpio_ctrl_reg[gpio],
ADC3XXX_GPIO_CTRL_CFG_MASK,
cfg << ADC3XXX_GPIO_CTRL_CFG_SHIFT);
}
}
/* Set up micbias voltage */
for (micbias = 0; micbias < ADC3XXX_MICBIAS_PINS; micbias++) {
unsigned int vg = adc3xxx->micbias_vg[micbias];
regmap_update_bits(adc3xxx->regmap,
ADC3XXX_MICBIAS_CTRL,
ADC3XXX_MICBIAS_MASK << adc3xxx_micbias_shift[micbias],
vg << adc3xxx_micbias_shift[micbias]);
}
}
static int adc3xxx_parse_dt_gpio(struct adc3xxx *adc3xxx,
const char *propname, unsigned int *cfg)
{
struct device *dev = adc3xxx->dev;
struct device_node *np = dev->of_node;
unsigned int val;
if (!of_property_read_u32(np, propname, &val)) {
if (val & ~15 || val == 7 || val >= 11) {
dev_err(dev, "Invalid property value for '%s'\n", propname);
return -EINVAL;
}
if (val == ADC3XXX_GPIO_GPI)
dev_warn(dev, "GPIO Input read not yet implemented\n");
*cfg = val + 1; /* 0 => not set up, all others shifted +1 */
}
return 0;
}
static int adc3xxx_parse_dt_micbias(struct adc3xxx *adc3xxx,
const char *propname, unsigned int *vg)
{
struct device *dev = adc3xxx->dev;
struct device_node *np = dev->of_node;
unsigned int val;
if (!of_property_read_u32(np, propname, &val)) {
if (val >= ADC3XXX_MICBIAS_AVDD) {
dev_err(dev, "Invalid property value for '%s'\n", propname);
return -EINVAL;
}
*vg = val;
}
return 0;
}
static int adc3xxx_parse_pll_mode(uint32_t val, unsigned int *pll_mode)
{
if (val != ADC3XXX_PLL_ENABLE && val != ADC3XXX_PLL_BYPASS &&
val != ADC3XXX_PLL_AUTO)
return -EINVAL;
*pll_mode = val;
return 0;
}
static void adc3xxx_setup_pll(struct snd_soc_component *component,
int div_entry)
{
int i = div_entry;
/* P & R values */
snd_soc_component_write(component, ADC3XXX_PLL_PROG_PR,
(adc3xxx_divs[i].pll_p << ADC3XXX_PLLP_SHIFT) |
(adc3xxx_divs[i].pll_r << ADC3XXX_PLLR_SHIFT));
/* J value */
snd_soc_component_write(component, ADC3XXX_PLL_PROG_J,
adc3xxx_divs[i].pll_j & ADC3XXX_PLLJ_MASK);
/* D value */
snd_soc_component_write(component, ADC3XXX_PLL_PROG_D_LSB,
adc3xxx_divs[i].pll_d & ADC3XXX_PLLD_LSB_MASK);
snd_soc_component_write(component, ADC3XXX_PLL_PROG_D_MSB,
(adc3xxx_divs[i].pll_d >> 8) & ADC3XXX_PLLD_MSB_MASK);
}
static int adc3xxx_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 snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(dai->component);
struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component);
int i, width = 16;
u8 iface_len, bdiv;
i = adc3xxx_get_divs(component->dev, adc3xxx->sysclk,
params_rate(params), adc3xxx->pll_mode);
if (i < 0)
return i;
/* select data word length */
switch (params_width(params)) {
case 16:
iface_len = ADC3XXX_IFACE_16BITS;
width = 16;
break;
case 20:
iface_len = ADC3XXX_IFACE_20BITS;
width = 20;
break;
case 24:
iface_len = ADC3XXX_IFACE_24BITS;
width = 24;
break;
case 32:
iface_len = ADC3XXX_IFACE_32BITS;
width = 32;
break;
default:
dev_err(component->dev, "Unsupported serial data format\n");
return -EINVAL;
}
snd_soc_component_update_bits(component, ADC3XXX_INTERFACE_CTRL_1,
ADC3XXX_WLENGTH_MASK, iface_len);
if (adc3xxx_divs[i].pll_p) { /* If PLL used for this mode */
adc3xxx_setup_pll(component, i);
snd_soc_component_write(component, ADC3XXX_CLKGEN_MUX, ADC3XXX_USE_PLL);
if (!adc3xxx->use_pll) {
snd_soc_dapm_add_routes(dapm, adc3xxx_pll_intercon,
ARRAY_SIZE(adc3xxx_pll_intercon));
adc3xxx->use_pll = 1;
}
} else {
snd_soc_component_write(component, ADC3XXX_CLKGEN_MUX, ADC3XXX_NO_PLL);
if (adc3xxx->use_pll) {
snd_soc_dapm_del_routes(dapm, adc3xxx_pll_intercon,
ARRAY_SIZE(adc3xxx_pll_intercon));
adc3xxx->use_pll = 0;
}
}
/* NADC */
snd_soc_component_update_bits(component, ADC3XXX_ADC_NADC,
ADC3XXX_NADC_MASK, adc3xxx_divs[i].nadc);
/* MADC */
snd_soc_component_update_bits(component, ADC3XXX_ADC_MADC,
ADC3XXX_MADC_MASK, adc3xxx_divs[i].madc);
/* AOSR */
snd_soc_component_update_bits(component, ADC3XXX_ADC_AOSR,
ADC3XXX_AOSR_MASK, adc3xxx_divs[i].aosr);
/* BDIV N Value */
/* BCLK is (by default) set up to be derived from ADC_CLK */
bdiv = (adc3xxx_divs[i].aosr * adc3xxx_divs[i].madc) / (2 * width);
snd_soc_component_update_bits(component, ADC3XXX_BCLK_N_DIV,
ADC3XXX_BDIV_MASK, bdiv);
return 0;
}
static const char *adc3xxx_pll_mode_text(int pll_mode)
{
switch (pll_mode) {
case ADC3XXX_PLL_AUTO:
return "PLL auto";
case ADC3XXX_PLL_ENABLE:
return "PLL enable";
case ADC3XXX_PLL_BYPASS:
return "PLL bypass";
default:
break;
}
return "PLL unknown";
}
static int adc3xxx_set_dai_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_component *component = codec_dai->component;
struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component);
int ret;
ret = adc3xxx_parse_pll_mode(clk_id, &adc3xxx->pll_mode);
if (ret < 0)
return ret;
adc3xxx->sysclk = freq;
dev_dbg(component->dev, "Set sysclk to %u Hz, %s\n",
freq, adc3xxx_pll_mode_text(adc3xxx->pll_mode));
return 0;
}
static int adc3xxx_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
struct snd_soc_component *component = codec_dai->component;
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
struct adc3xxx *adc3xxx = snd_soc_component_get_drvdata(component);
u8 clkdir = 0, format = 0;
int master = 0;
int ret;
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBP_CFP:
master = 1;
clkdir = ADC3XXX_BCLK_MASTER | ADC3XXX_WCLK_MASTER;
break;
case SND_SOC_DAIFMT_CBC_CFC:
master = 0;
break;
default:
dev_err(component->dev, "Invalid DAI clock setup\n");
return -EINVAL;
}
/*
* match both interface format and signal polarities since they
* are fixed
*/
switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK)) {
case SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF:
format = ADC3XXX_FORMAT_I2S;
break;
case SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF:
format = ADC3XXX_FORMAT_DSP;
break;
case SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF:
format = ADC3XXX_FORMAT_DSP;
break;
case SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF:
format = ADC3XXX_FORMAT_RJF;
break;
case SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF:
format = ADC3XXX_FORMAT_LJF;
break;
default:
dev_err(component->dev, "Invalid DAI format\n");
return -EINVAL;
}
/* Add/del route enabling BCLK output as applicable */
if (master && !adc3xxx->master)
snd_soc_dapm_add_routes(dapm, adc3xxx_bclk_out_intercon,
ARRAY_SIZE(adc3xxx_bclk_out_intercon));
else if (!master && adc3xxx->master)
snd_soc_dapm_del_routes(dapm, adc3xxx_bclk_out_intercon,
ARRAY_SIZE(adc3xxx_bclk_out_intercon));
adc3xxx->master = master;
/* set clock direction and format */
ret = snd_soc_component_update_bits(component,
ADC3XXX_INTERFACE_CTRL_1,
ADC3XXX_CLKDIR_MASK | ADC3XXX_FORMAT_MASK,
clkdir | format);
if (ret < 0)
return ret;
return 0;
}
static const struct snd_soc_dai_ops adc3xxx_dai_ops = {
.hw_params = adc3xxx_hw_params,
.set_sysclk = adc3xxx_set_dai_sysclk,
.set_fmt = adc3xxx_set_dai_fmt,
};
static struct snd_soc_dai_driver adc3xxx_dai = {
.name = "tlv320adc3xxx-hifi",
.capture = {
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = ADC3XXX_RATES,
.formats = ADC3XXX_FORMATS,
},
.ops = &adc3xxx_dai_ops,
};
static const struct snd_soc_component_driver soc_component_dev_adc3xxx = {
.controls = adc3xxx_snd_controls,
.num_controls = ARRAY_SIZE(adc3xxx_snd_controls),
.dapm_widgets = adc3xxx_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(adc3xxx_dapm_widgets),
.dapm_routes = adc3xxx_intercon,
.num_dapm_routes = ARRAY_SIZE(adc3xxx_intercon),
.endianness = 1,
};
static const struct i2c_device_id adc3xxx_i2c_id[] = {
{ "tlv320adc3001", ADC3001 },
{ "tlv320adc3101", ADC3101 },
{}
};
MODULE_DEVICE_TABLE(i2c, adc3xxx_i2c_id);
static int adc3xxx_i2c_probe(struct i2c_client *i2c)
{
struct device *dev = &i2c->dev;
struct adc3xxx *adc3xxx = NULL;
const struct i2c_device_id *id;
int ret;
adc3xxx = devm_kzalloc(dev, sizeof(struct adc3xxx), GFP_KERNEL);
if (!adc3xxx)
return -ENOMEM;
adc3xxx->dev = dev;
adc3xxx->rst_pin = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(adc3xxx->rst_pin)) {
return dev_err_probe(dev, PTR_ERR(adc3xxx->rst_pin),
"Failed to request rst_pin\n");
}
adc3xxx->mclk = devm_clk_get(dev, NULL);
if (IS_ERR(adc3xxx->mclk)) {
/*
* The chip itself supports running off the BCLK either
* directly or via the PLL, but the driver does not (yet), so
* having a specified mclk is required. Otherwise, we could
* use the lack of a clocks property to indicate when BCLK is
* intended as the clock source.
*/
return dev_err_probe(dev, PTR_ERR(adc3xxx->mclk),
"Failed to acquire MCLK\n");
} else if (adc3xxx->mclk) {
ret = clk_prepare_enable(adc3xxx->mclk);
if (ret < 0)
return ret;
dev_dbg(dev, "Enabled MCLK, freq %lu Hz\n", clk_get_rate(adc3xxx->mclk));
}
ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmdin-gpio1", &adc3xxx->gpio_cfg[0]);
if (ret < 0)
goto err_unprepare_mclk;
ret = adc3xxx_parse_dt_gpio(adc3xxx, "ti,dmclk-gpio2", &adc3xxx->gpio_cfg[1]);
if (ret < 0)
goto err_unprepare_mclk;
ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias1-vg", &adc3xxx->micbias_vg[0]);
if (ret < 0)
goto err_unprepare_mclk;
ret = adc3xxx_parse_dt_micbias(adc3xxx, "ti,micbias2-vg", &adc3xxx->micbias_vg[1]);
if (ret < 0)
goto err_unprepare_mclk;
adc3xxx->regmap = devm_regmap_init_i2c(i2c, &adc3xxx_regmap);
if (IS_ERR(adc3xxx->regmap)) {
ret = PTR_ERR(adc3xxx->regmap);
goto err_unprepare_mclk;
}
i2c_set_clientdata(i2c, adc3xxx);
id = i2c_match_id(adc3xxx_i2c_id, i2c);
adc3xxx->type = id->driver_data;
/* Reset codec chip */
gpiod_set_value_cansleep(adc3xxx->rst_pin, 1);
usleep_range(2000, 100000); /* Requirement: > 10 ns (datasheet p13) */
gpiod_set_value_cansleep(adc3xxx->rst_pin, 0);
/* Potentially set up pins used as GPIOs */
adc3xxx_init_gpio(adc3xxx);
ret = snd_soc_register_component(dev,
&soc_component_dev_adc3xxx, &adc3xxx_dai, 1);
if (ret < 0) {
dev_err(dev, "Failed to register codec: %d\n", ret);
goto err_unprepare_mclk;
}
return 0;
err_unprepare_mclk:
clk_disable_unprepare(adc3xxx->mclk);
return ret;
}
static void __exit adc3xxx_i2c_remove(struct i2c_client *client)
{
struct adc3xxx *adc3xxx = i2c_get_clientdata(client);
if (adc3xxx->mclk)
clk_disable_unprepare(adc3xxx->mclk);
adc3xxx_free_gpio(adc3xxx);
snd_soc_unregister_component(&client->dev);
}
static const struct of_device_id tlv320adc3xxx_of_match[] = {
{ .compatible = "ti,tlv320adc3001", },
{ .compatible = "ti,tlv320adc3101", },
{},
};
MODULE_DEVICE_TABLE(of, tlv320adc3xxx_of_match);
static struct i2c_driver adc3xxx_i2c_driver = {
.driver = {
.name = "tlv320adc3xxx-codec",
.of_match_table = tlv320adc3xxx_of_match,
},
.probe_new = adc3xxx_i2c_probe,
.remove = __exit_p(adc3xxx_i2c_remove),
.id_table = adc3xxx_i2c_id,
};
module_i2c_driver(adc3xxx_i2c_driver);
MODULE_DESCRIPTION("ASoC TLV320ADC3xxx codec driver");
MODULE_AUTHOR("shahina.s@mistralsolutions.com");
MODULE_LICENSE("GPL v2");