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linux/sound/soc/codecs/rt1305.c
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 
Based on 2 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 as
  published by the free software foundation #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

1183 lines
32 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-only
/*
* rt1305.c -- RT1305 ALSA SoC amplifier component driver
*
* Copyright 2018 Realtek Semiconductor Corp.
* Author: Shuming Fan <shumingf@realtek.com>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/acpi.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/firmware.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/initval.h>
#include <sound/tlv.h>
#include "rl6231.h"
#include "rt1305.h"
#define RT1305_PR_RANGE_BASE (0xff + 1)
#define RT1305_PR_SPACING 0x100
#define RT1305_PR_BASE (RT1305_PR_RANGE_BASE + (0 * RT1305_PR_SPACING))
static const struct regmap_range_cfg rt1305_ranges[] = {
{
.name = "PR",
.range_min = RT1305_PR_BASE,
.range_max = RT1305_PR_BASE + 0xff,
.selector_reg = RT1305_PRIV_INDEX,
.selector_mask = 0xff,
.selector_shift = 0x0,
.window_start = RT1305_PRIV_DATA,
.window_len = 0x1,
},
};
static const struct reg_sequence init_list[] = {
{ RT1305_PR_BASE + 0xcf, 0x5548 },
{ RT1305_PR_BASE + 0x5d, 0x0442 },
{ RT1305_PR_BASE + 0xc1, 0x0320 },
{ RT1305_POWER_STATUS, 0x0000 },
{ RT1305_SPK_TEMP_PROTECTION_1, 0xd6de },
{ RT1305_SPK_TEMP_PROTECTION_2, 0x0707 },
{ RT1305_SPK_TEMP_PROTECTION_3, 0x4090 },
{ RT1305_DAC_SET_1, 0xdfdf }, /* 4 ohm 2W */
{ RT1305_ADC_SET_3, 0x0219 },
{ RT1305_ADC_SET_1, 0x170f }, /* 0.2 ohm RSense*/
};
#define RT1305_INIT_REG_LEN ARRAY_SIZE(init_list)
struct rt1305_priv {
struct snd_soc_component *component;
struct regmap *regmap;
int sysclk;
int sysclk_src;
int lrck;
int bclk;
int master;
int pll_src;
int pll_in;
int pll_out;
};
static const struct reg_default rt1305_reg[] = {
{ 0x04, 0x0400 },
{ 0x05, 0x0880 },
{ 0x06, 0x0000 },
{ 0x07, 0x3100 },
{ 0x08, 0x8000 },
{ 0x09, 0x0000 },
{ 0x0a, 0x087e },
{ 0x0b, 0x0020 },
{ 0x0c, 0x0802 },
{ 0x0d, 0x0020 },
{ 0x10, 0x1d1d },
{ 0x11, 0x1d1d },
{ 0x12, 0xffff },
{ 0x14, 0x000c },
{ 0x16, 0x1717 },
{ 0x17, 0x4000 },
{ 0x18, 0x0019 },
{ 0x20, 0x0000 },
{ 0x22, 0x0000 },
{ 0x24, 0x0000 },
{ 0x26, 0x0000 },
{ 0x28, 0x0000 },
{ 0x2a, 0x4000 },
{ 0x2b, 0x3000 },
{ 0x2d, 0x6000 },
{ 0x2e, 0x0000 },
{ 0x2f, 0x8000 },
{ 0x32, 0x0000 },
{ 0x39, 0x0001 },
{ 0x3a, 0x0000 },
{ 0x3b, 0x1020 },
{ 0x3c, 0x0000 },
{ 0x3d, 0x0000 },
{ 0x3e, 0x4c00 },
{ 0x3f, 0x3000 },
{ 0x40, 0x000c },
{ 0x42, 0x0400 },
{ 0x46, 0xc22c },
{ 0x47, 0x0000 },
{ 0x4b, 0x0000 },
{ 0x4c, 0x0300 },
{ 0x4f, 0xf000 },
{ 0x50, 0xc200 },
{ 0x51, 0x1f1f },
{ 0x52, 0x01f0 },
{ 0x53, 0x407f },
{ 0x54, 0xffff },
{ 0x58, 0x4005 },
{ 0x5e, 0x0000 },
{ 0x5f, 0x0000 },
{ 0x60, 0xee13 },
{ 0x62, 0x0000 },
{ 0x63, 0x5f5f },
{ 0x64, 0x0040 },
{ 0x65, 0x4000 },
{ 0x66, 0x4004 },
{ 0x67, 0x0306 },
{ 0x68, 0x8c04 },
{ 0x69, 0xe021 },
{ 0x6a, 0x0000 },
{ 0x6c, 0xaaaa },
{ 0x70, 0x0333 },
{ 0x71, 0x3330 },
{ 0x72, 0x3333 },
{ 0x73, 0x3300 },
{ 0x74, 0x0000 },
{ 0x75, 0x0000 },
{ 0x76, 0x0000 },
{ 0x7a, 0x0003 },
{ 0x7c, 0x10ec },
{ 0x7e, 0x6251 },
{ 0x80, 0x0800 },
{ 0x81, 0x4000 },
{ 0x82, 0x0000 },
{ 0x90, 0x7a01 },
{ 0x91, 0x8431 },
{ 0x92, 0x0180 },
{ 0x93, 0x0000 },
{ 0x94, 0x0000 },
{ 0x95, 0x0000 },
{ 0x96, 0x0000 },
{ 0x97, 0x0000 },
{ 0x98, 0x0000 },
{ 0x99, 0x0000 },
{ 0x9a, 0x0000 },
{ 0x9b, 0x0000 },
{ 0x9c, 0x0000 },
{ 0x9d, 0x0000 },
{ 0x9e, 0x0000 },
{ 0x9f, 0x0000 },
{ 0xa0, 0x0000 },
{ 0xb0, 0x8200 },
{ 0xb1, 0x00ff },
{ 0xb2, 0x0008 },
{ 0xc0, 0x0200 },
{ 0xc1, 0x0000 },
{ 0xc2, 0x0000 },
{ 0xc3, 0x0000 },
{ 0xc4, 0x0000 },
{ 0xc5, 0x0000 },
{ 0xc6, 0x0000 },
{ 0xc7, 0x0000 },
{ 0xc8, 0x0000 },
{ 0xc9, 0x0000 },
{ 0xca, 0x0200 },
{ 0xcb, 0x0000 },
{ 0xcc, 0x0000 },
{ 0xcd, 0x0000 },
{ 0xce, 0x0000 },
{ 0xcf, 0x0000 },
{ 0xd0, 0x0000 },
{ 0xd1, 0x0000 },
{ 0xd2, 0x0000 },
{ 0xd3, 0x0000 },
{ 0xd4, 0x0200 },
{ 0xd5, 0x0000 },
{ 0xd6, 0x0000 },
{ 0xd7, 0x0000 },
{ 0xd8, 0x0000 },
{ 0xd9, 0x0000 },
{ 0xda, 0x0000 },
{ 0xdb, 0x0000 },
{ 0xdc, 0x0000 },
{ 0xdd, 0x0000 },
{ 0xde, 0x0200 },
{ 0xdf, 0x0000 },
{ 0xe0, 0x0000 },
{ 0xe1, 0x0000 },
{ 0xe2, 0x0000 },
{ 0xe3, 0x0000 },
{ 0xe4, 0x0000 },
{ 0xe5, 0x0000 },
{ 0xe6, 0x0000 },
{ 0xe7, 0x0000 },
{ 0xe8, 0x0200 },
{ 0xe9, 0x0000 },
{ 0xea, 0x0000 },
{ 0xeb, 0x0000 },
{ 0xec, 0x0000 },
{ 0xed, 0x0000 },
{ 0xee, 0x0000 },
{ 0xef, 0x0000 },
{ 0xf0, 0x0000 },
{ 0xf1, 0x0000 },
{ 0xf2, 0x0200 },
{ 0xf3, 0x0000 },
{ 0xf4, 0x0000 },
{ 0xf5, 0x0000 },
{ 0xf6, 0x0000 },
{ 0xf7, 0x0000 },
{ 0xf8, 0x0000 },
{ 0xf9, 0x0000 },
{ 0xfa, 0x0000 },
{ 0xfb, 0x0000 },
};
static int rt1305_reg_init(struct snd_soc_component *component)
{
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
regmap_multi_reg_write(rt1305->regmap, init_list, RT1305_INIT_REG_LEN);
return 0;
}
static bool rt1305_volatile_register(struct device *dev, unsigned int reg)
{
int i;
for (i = 0; i < ARRAY_SIZE(rt1305_ranges); i++) {
if (reg >= rt1305_ranges[i].range_min &&
reg <= rt1305_ranges[i].range_max) {
return true;
}
}
switch (reg) {
case RT1305_RESET:
case RT1305_SPDIF_IN_SET_1:
case RT1305_SPDIF_IN_SET_2:
case RT1305_SPDIF_IN_SET_3:
case RT1305_POWER_CTRL_2:
case RT1305_CLOCK_DETECT:
case RT1305_BIQUAD_SET_1:
case RT1305_BIQUAD_SET_2:
case RT1305_EQ_SET_2:
case RT1305_SPK_TEMP_PROTECTION_0:
case RT1305_SPK_TEMP_PROTECTION_2:
case RT1305_SPK_DC_DETECT_1:
case RT1305_SILENCE_DETECT:
case RT1305_VERSION_ID:
case RT1305_VENDOR_ID:
case RT1305_DEVICE_ID:
case RT1305_EFUSE_1:
case RT1305_EFUSE_3:
case RT1305_DC_CALIB_1:
case RT1305_DC_CALIB_3:
case RT1305_DAC_OFFSET_1:
case RT1305_DAC_OFFSET_2:
case RT1305_DAC_OFFSET_3:
case RT1305_DAC_OFFSET_4:
case RT1305_DAC_OFFSET_5:
case RT1305_DAC_OFFSET_6:
case RT1305_DAC_OFFSET_7:
case RT1305_DAC_OFFSET_8:
case RT1305_DAC_OFFSET_9:
case RT1305_DAC_OFFSET_10:
case RT1305_DAC_OFFSET_11:
case RT1305_TRIM_1:
case RT1305_TRIM_2:
return true;
default:
return false;
}
}
static bool rt1305_readable_register(struct device *dev, unsigned int reg)
{
int i;
for (i = 0; i < ARRAY_SIZE(rt1305_ranges); i++) {
if (reg >= rt1305_ranges[i].range_min &&
reg <= rt1305_ranges[i].range_max) {
return true;
}
}
switch (reg) {
case RT1305_RESET:
case RT1305_CLK_1 ... RT1305_CAL_EFUSE_CLOCK:
case RT1305_PLL0_1 ... RT1305_PLL1_2:
case RT1305_MIXER_CTRL_1:
case RT1305_MIXER_CTRL_2:
case RT1305_DAC_SET_1:
case RT1305_DAC_SET_2:
case RT1305_ADC_SET_1:
case RT1305_ADC_SET_2:
case RT1305_ADC_SET_3:
case RT1305_PATH_SET:
case RT1305_SPDIF_IN_SET_1:
case RT1305_SPDIF_IN_SET_2:
case RT1305_SPDIF_IN_SET_3:
case RT1305_SPDIF_OUT_SET_1:
case RT1305_SPDIF_OUT_SET_2:
case RT1305_SPDIF_OUT_SET_3:
case RT1305_I2S_SET_1:
case RT1305_I2S_SET_2:
case RT1305_PBTL_MONO_MODE_SRC:
case RT1305_MANUALLY_I2C_DEVICE:
case RT1305_POWER_STATUS:
case RT1305_POWER_CTRL_1:
case RT1305_POWER_CTRL_2:
case RT1305_POWER_CTRL_3:
case RT1305_POWER_CTRL_4:
case RT1305_POWER_CTRL_5:
case RT1305_CLOCK_DETECT:
case RT1305_BIQUAD_SET_1:
case RT1305_BIQUAD_SET_2:
case RT1305_ADJUSTED_HPF_1:
case RT1305_ADJUSTED_HPF_2:
case RT1305_EQ_SET_1:
case RT1305_EQ_SET_2:
case RT1305_SPK_TEMP_PROTECTION_0:
case RT1305_SPK_TEMP_PROTECTION_1:
case RT1305_SPK_TEMP_PROTECTION_2:
case RT1305_SPK_TEMP_PROTECTION_3:
case RT1305_SPK_DC_DETECT_1:
case RT1305_SPK_DC_DETECT_2:
case RT1305_LOUDNESS:
case RT1305_THERMAL_FOLD_BACK_1:
case RT1305_THERMAL_FOLD_BACK_2:
case RT1305_SILENCE_DETECT ... RT1305_SPK_EXCURSION_LIMITER_7:
case RT1305_VERSION_ID:
case RT1305_VENDOR_ID:
case RT1305_DEVICE_ID:
case RT1305_EFUSE_1:
case RT1305_EFUSE_2:
case RT1305_EFUSE_3:
case RT1305_DC_CALIB_1:
case RT1305_DC_CALIB_2:
case RT1305_DC_CALIB_3:
case RT1305_DAC_OFFSET_1 ... RT1305_DAC_OFFSET_14:
case RT1305_TRIM_1:
case RT1305_TRIM_2:
case RT1305_TUNE_INTERNAL_OSC:
case RT1305_BIQUAD1_H0_L_28_16 ... RT1305_BIQUAD3_A2_R_15_0:
return true;
default:
return false;
}
}
static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -9435, 37, 0);
static const char * const rt1305_rx_data_ch_select[] = {
"LR",
"RL",
"Copy L",
"Copy R",
};
static SOC_ENUM_SINGLE_DECL(rt1305_rx_data_ch_enum, RT1305_I2S_SET_2, 2,
rt1305_rx_data_ch_select);
static void rt1305_reset(struct regmap *regmap)
{
regmap_write(regmap, RT1305_RESET, 0);
}
static const struct snd_kcontrol_new rt1305_snd_controls[] = {
SOC_DOUBLE_TLV("DAC Playback Volume", RT1305_DAC_SET_1,
8, 0, 0xff, 0, dac_vol_tlv),
/* I2S Data Channel Selection */
SOC_ENUM("RX Channel Select", rt1305_rx_data_ch_enum),
};
static int rt1305_is_rc_clk_from_pll(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
struct snd_soc_component *component =
snd_soc_dapm_to_component(source->dapm);
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
unsigned int val;
snd_soc_component_read(component, RT1305_CLK_1, &val);
if (rt1305->sysclk_src == RT1305_FS_SYS_PRE_S_PLL1 &&
(val & RT1305_SEL_PLL_SRC_2_RCCLK))
return 1;
else
return 0;
}
static int rt1305_is_sys_clk_from_pll(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink)
{
struct snd_soc_component *component =
snd_soc_dapm_to_component(source->dapm);
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
if (rt1305->sysclk_src == RT1305_FS_SYS_PRE_S_PLL1)
return 1;
else
return 0;
}
static int rt1305_classd_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_update_bits(component, RT1305_POWER_CTRL_1,
RT1305_POW_PDB_JD_MASK, RT1305_POW_PDB_JD);
break;
case SND_SOC_DAPM_PRE_PMD:
snd_soc_component_update_bits(component, RT1305_POWER_CTRL_1,
RT1305_POW_PDB_JD_MASK, 0);
usleep_range(150000, 200000);
break;
default:
return 0;
}
return 0;
}
static const struct snd_kcontrol_new rt1305_sto_dac_l =
SOC_DAPM_SINGLE("Switch", RT1305_DAC_SET_2,
RT1305_DVOL_MUTE_L_EN_SFT, 1, 1);
static const struct snd_kcontrol_new rt1305_sto_dac_r =
SOC_DAPM_SINGLE("Switch", RT1305_DAC_SET_2,
RT1305_DVOL_MUTE_R_EN_SFT, 1, 1);
static const struct snd_soc_dapm_widget rt1305_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("PLL0", RT1305_POWER_CTRL_1,
RT1305_POW_PLL0_EN_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("PLL1", RT1305_POWER_CTRL_1,
RT1305_POW_PLL1_EN_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("MBIAS", RT1305_POWER_CTRL_1,
RT1305_POW_MBIAS_LV_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("BG MBIAS", RT1305_POWER_CTRL_1,
RT1305_POW_BG_MBIAS_LV_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("LDO2", RT1305_POWER_CTRL_1,
RT1305_POW_LDO2_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("BG2", RT1305_POWER_CTRL_1,
RT1305_POW_BG2_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("LDO2 IB2", RT1305_POWER_CTRL_1,
RT1305_POW_LDO2_IB2_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VREF", RT1305_POWER_CTRL_1,
RT1305_POW_VREF_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VREF1", RT1305_POWER_CTRL_1,
RT1305_POW_VREF1_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VREF2", RT1305_POWER_CTRL_1,
RT1305_POW_VREF2_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("DISC VREF", RT1305_POWER_CTRL_2,
RT1305_POW_DISC_VREF_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("FASTB VREF", RT1305_POWER_CTRL_2,
RT1305_POW_FASTB_VREF_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ULTRA FAST VREF", RT1305_POWER_CTRL_2,
RT1305_POW_ULTRA_FAST_VREF_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("CHOP DAC", RT1305_POWER_CTRL_2,
RT1305_POW_CKXEN_DAC_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("CKGEN DAC", RT1305_POWER_CTRL_2,
RT1305_POW_EN_CKGEN_DAC_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("CLAMP", RT1305_POWER_CTRL_2,
RT1305_POW_CLAMP_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("BUFL", RT1305_POWER_CTRL_2,
RT1305_POW_BUFL_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("BUFR", RT1305_POWER_CTRL_2,
RT1305_POW_BUFR_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("CKGEN ADC", RT1305_POWER_CTRL_2,
RT1305_POW_EN_CKGEN_ADC_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ADC3 L", RT1305_POWER_CTRL_2,
RT1305_POW_ADC3_L_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ADC3 R", RT1305_POWER_CTRL_2,
RT1305_POW_ADC3_R_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("TRIOSC", RT1305_POWER_CTRL_2,
RT1305_POW_TRIOSC_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("AVDD1", RT1305_POWER_CTRL_2,
RT1305_POR_AVDD1_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("AVDD2", RT1305_POWER_CTRL_2,
RT1305_POR_AVDD2_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VSENSE R", RT1305_POWER_CTRL_3,
RT1305_POW_VSENSE_RCH_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VSENSE L", RT1305_POWER_CTRL_3,
RT1305_POW_VSENSE_LCH_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ISENSE R", RT1305_POWER_CTRL_3,
RT1305_POW_ISENSE_RCH_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("ISENSE L", RT1305_POWER_CTRL_3,
RT1305_POW_ISENSE_LCH_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("POR AVDD1", RT1305_POWER_CTRL_3,
RT1305_POW_POR_AVDD1_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("POR AVDD2", RT1305_POWER_CTRL_3,
RT1305_POW_POR_AVDD2_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("VCM 6172", RT1305_POWER_CTRL_3,
RT1305_EN_VCM_6172_BIT, 0, NULL, 0),
/* Audio Interface */
SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0),
/* Digital Interface */
SND_SOC_DAPM_SUPPLY("DAC L Power", RT1305_POWER_CTRL_2,
RT1305_POW_DAC1_L_BIT, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("DAC R Power", RT1305_POWER_CTRL_2,
RT1305_POW_DAC1_R_BIT, 0, NULL, 0),
SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_SWITCH("DAC L", SND_SOC_NOPM, 0, 0, &rt1305_sto_dac_l),
SND_SOC_DAPM_SWITCH("DAC R", SND_SOC_NOPM, 0, 0, &rt1305_sto_dac_r),
/* Output Lines */
SND_SOC_DAPM_PGA_E("CLASS D", SND_SOC_NOPM, 0, 0, NULL, 0,
rt1305_classd_event,
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_OUTPUT("SPOL"),
SND_SOC_DAPM_OUTPUT("SPOR"),
};
static const struct snd_soc_dapm_route rt1305_dapm_routes[] = {
{ "DAC", NULL, "AIF1RX" },
{ "DAC", NULL, "PLL0", rt1305_is_rc_clk_from_pll },
{ "DAC", NULL, "PLL1", rt1305_is_sys_clk_from_pll },
{ "DAC", NULL, "MBIAS" },
{ "DAC", NULL, "BG MBIAS" },
{ "DAC", NULL, "LDO2" },
{ "DAC", NULL, "BG2" },
{ "DAC", NULL, "LDO2 IB2" },
{ "DAC", NULL, "VREF" },
{ "DAC", NULL, "VREF1" },
{ "DAC", NULL, "VREF2" },
{ "DAC", NULL, "DISC VREF" },
{ "DAC", NULL, "FASTB VREF" },
{ "DAC", NULL, "ULTRA FAST VREF" },
{ "DAC", NULL, "CHOP DAC" },
{ "DAC", NULL, "CKGEN DAC" },
{ "DAC", NULL, "CLAMP" },
{ "DAC", NULL, "CKGEN ADC" },
{ "DAC", NULL, "TRIOSC" },
{ "DAC", NULL, "AVDD1" },
{ "DAC", NULL, "AVDD2" },
{ "DAC", NULL, "POR AVDD1" },
{ "DAC", NULL, "POR AVDD2" },
{ "DAC", NULL, "VCM 6172" },
{ "DAC L", "Switch", "DAC" },
{ "DAC R", "Switch", "DAC" },
{ "DAC R", NULL, "VSENSE R" },
{ "DAC L", NULL, "VSENSE L" },
{ "DAC R", NULL, "ISENSE R" },
{ "DAC L", NULL, "ISENSE L" },
{ "DAC L", NULL, "ADC3 L" },
{ "DAC R", NULL, "ADC3 R" },
{ "DAC L", NULL, "BUFL" },
{ "DAC R", NULL, "BUFR" },
{ "DAC L", NULL, "DAC L Power" },
{ "DAC R", NULL, "DAC R Power" },
{ "CLASS D", NULL, "DAC L" },
{ "CLASS D", NULL, "DAC R" },
{ "SPOL", NULL, "CLASS D" },
{ "SPOR", NULL, "CLASS D" },
};
static int rt1305_get_clk_info(int sclk, int rate)
{
int i, pd[] = {1, 2, 3, 4, 6, 8, 12, 16};
if (sclk <= 0 || rate <= 0)
return -EINVAL;
rate = rate << 8;
for (i = 0; i < ARRAY_SIZE(pd); i++)
if (sclk == rate * pd[i])
return i;
return -EINVAL;
}
static int rt1305_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 rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
unsigned int val_len = 0, val_clk, mask_clk;
int pre_div, bclk_ms, frame_size;
rt1305->lrck = params_rate(params);
pre_div = rt1305_get_clk_info(rt1305->sysclk, rt1305->lrck);
if (pre_div < 0) {
dev_warn(component->dev, "Force using PLL ");
snd_soc_dai_set_pll(dai, 0, RT1305_PLL1_S_BCLK,
rt1305->lrck * 64, rt1305->lrck * 256);
snd_soc_dai_set_sysclk(dai, RT1305_FS_SYS_PRE_S_PLL1,
rt1305->lrck * 256, SND_SOC_CLOCK_IN);
pre_div = 0;
}
frame_size = snd_soc_params_to_frame_size(params);
if (frame_size < 0) {
dev_err(component->dev, "Unsupported frame size: %d\n",
frame_size);
return -EINVAL;
}
bclk_ms = frame_size > 32;
rt1305->bclk = rt1305->lrck * (32 << bclk_ms);
dev_dbg(component->dev, "bclk_ms is %d and pre_div is %d for iis %d\n",
bclk_ms, pre_div, dai->id);
dev_dbg(component->dev, "lrck is %dHz and pre_div is %d for iis %d\n",
rt1305->lrck, pre_div, dai->id);
switch (params_width(params)) {
case 16:
val_len |= RT1305_I2S_DL_SEL_16B;
break;
case 20:
val_len |= RT1305_I2S_DL_SEL_20B;
break;
case 24:
val_len |= RT1305_I2S_DL_SEL_24B;
break;
case 8:
val_len |= RT1305_I2S_DL_SEL_8B;
break;
default:
return -EINVAL;
}
switch (dai->id) {
case RT1305_AIF1:
mask_clk = RT1305_DIV_FS_SYS_MASK;
val_clk = pre_div << RT1305_DIV_FS_SYS_SFT;
snd_soc_component_update_bits(component, RT1305_I2S_SET_2,
RT1305_I2S_DL_SEL_MASK,
val_len);
break;
default:
dev_err(component->dev, "Invalid dai->id: %d\n", dai->id);
return -EINVAL;
}
snd_soc_component_update_bits(component, RT1305_CLK_2,
mask_clk, val_clk);
return 0;
}
static int rt1305_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
unsigned int reg_val = 0, reg1_val = 0;
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
case SND_SOC_DAIFMT_CBM_CFM:
reg_val |= RT1305_SEL_I2S_OUT_MODE_M;
rt1305->master = 1;
break;
case SND_SOC_DAIFMT_CBS_CFS:
reg_val |= RT1305_SEL_I2S_OUT_MODE_S;
rt1305->master = 0;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_IB_NF:
reg1_val |= RT1305_I2S_BCLK_INV;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
break;
case SND_SOC_DAIFMT_LEFT_J:
reg1_val |= RT1305_I2S_DF_SEL_LEFT;
break;
case SND_SOC_DAIFMT_DSP_A:
reg1_val |= RT1305_I2S_DF_SEL_PCM_A;
break;
case SND_SOC_DAIFMT_DSP_B:
reg1_val |= RT1305_I2S_DF_SEL_PCM_B;
break;
default:
return -EINVAL;
}
switch (dai->id) {
case RT1305_AIF1:
snd_soc_component_update_bits(component, RT1305_I2S_SET_1,
RT1305_SEL_I2S_OUT_MODE_MASK, reg_val);
snd_soc_component_update_bits(component, RT1305_I2S_SET_2,
RT1305_I2S_DF_SEL_MASK | RT1305_I2S_BCLK_MASK,
reg1_val);
break;
default:
dev_err(component->dev, "Invalid dai->id: %d\n", dai->id);
return -EINVAL;
}
return 0;
}
static int rt1305_set_component_sysclk(struct snd_soc_component *component,
int clk_id, int source, unsigned int freq, int dir)
{
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
unsigned int reg_val = 0;
if (freq == rt1305->sysclk && clk_id == rt1305->sysclk_src)
return 0;
switch (clk_id) {
case RT1305_FS_SYS_PRE_S_MCLK:
reg_val |= RT1305_SEL_FS_SYS_PRE_MCLK;
snd_soc_component_update_bits(component,
RT1305_CLOCK_DETECT, RT1305_SEL_CLK_DET_SRC_MASK,
RT1305_SEL_CLK_DET_SRC_MCLK);
break;
case RT1305_FS_SYS_PRE_S_PLL1:
reg_val |= RT1305_SEL_FS_SYS_PRE_PLL;
break;
case RT1305_FS_SYS_PRE_S_RCCLK:
reg_val |= RT1305_SEL_FS_SYS_PRE_RCCLK;
break;
default:
dev_err(component->dev, "Invalid clock id (%d)\n", clk_id);
return -EINVAL;
}
snd_soc_component_update_bits(component, RT1305_CLK_1,
RT1305_SEL_FS_SYS_PRE_MASK, reg_val);
rt1305->sysclk = freq;
rt1305->sysclk_src = clk_id;
dev_dbg(component->dev, "Sysclk is %dHz and clock id is %d\n",
freq, clk_id);
return 0;
}
static int rt1305_set_component_pll(struct snd_soc_component *component,
int pll_id, int source, unsigned int freq_in,
unsigned int freq_out)
{
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
struct rl6231_pll_code pll_code;
int ret;
if (source == rt1305->pll_src && freq_in == rt1305->pll_in &&
freq_out == rt1305->pll_out)
return 0;
if (!freq_in || !freq_out) {
dev_dbg(component->dev, "PLL disabled\n");
rt1305->pll_in = 0;
rt1305->pll_out = 0;
snd_soc_component_update_bits(component, RT1305_CLK_1,
RT1305_SEL_FS_SYS_PRE_MASK | RT1305_SEL_PLL_SRC_1_MASK,
RT1305_SEL_FS_SYS_PRE_PLL | RT1305_SEL_PLL_SRC_1_BCLK);
return 0;
}
switch (source) {
case RT1305_PLL2_S_MCLK:
snd_soc_component_update_bits(component, RT1305_CLK_1,
RT1305_SEL_PLL_SRC_2_MASK | RT1305_SEL_PLL_SRC_1_MASK |
RT1305_DIV_PLL_SRC_2_MASK,
RT1305_SEL_PLL_SRC_2_MCLK | RT1305_SEL_PLL_SRC_1_PLL2);
snd_soc_component_update_bits(component,
RT1305_CLOCK_DETECT, RT1305_SEL_CLK_DET_SRC_MASK,
RT1305_SEL_CLK_DET_SRC_MCLK);
break;
case RT1305_PLL1_S_BCLK:
snd_soc_component_update_bits(component,
RT1305_CLK_1, RT1305_SEL_PLL_SRC_1_MASK,
RT1305_SEL_PLL_SRC_1_BCLK);
break;
case RT1305_PLL2_S_RCCLK:
snd_soc_component_update_bits(component, RT1305_CLK_1,
RT1305_SEL_PLL_SRC_2_MASK | RT1305_SEL_PLL_SRC_1_MASK |
RT1305_DIV_PLL_SRC_2_MASK,
RT1305_SEL_PLL_SRC_2_RCCLK | RT1305_SEL_PLL_SRC_1_PLL2);
freq_in = 98304000;
break;
default:
dev_err(component->dev, "Unknown PLL Source %d\n", source);
return -EINVAL;
}
ret = rl6231_pll_calc(freq_in, freq_out, &pll_code);
if (ret < 0) {
dev_err(component->dev, "Unsupport input clock %d\n", freq_in);
return ret;
}
dev_dbg(component->dev, "bypass=%d m=%d n=%d k=%d\n",
pll_code.m_bp, (pll_code.m_bp ? 0 : pll_code.m_code),
pll_code.n_code, pll_code.k_code);
snd_soc_component_write(component, RT1305_PLL1_1,
(pll_code.m_bp ? 0 : pll_code.m_code) << RT1305_PLL_1_M_SFT |
pll_code.m_bp << RT1305_PLL_1_M_BYPASS_SFT |
pll_code.n_code);
snd_soc_component_write(component, RT1305_PLL1_2,
pll_code.k_code);
rt1305->pll_in = freq_in;
rt1305->pll_out = freq_out;
rt1305->pll_src = source;
return 0;
}
static int rt1305_probe(struct snd_soc_component *component)
{
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
rt1305->component = component;
/* initial settings */
rt1305_reg_init(component);
return 0;
}
static void rt1305_remove(struct snd_soc_component *component)
{
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
rt1305_reset(rt1305->regmap);
}
#ifdef CONFIG_PM
static int rt1305_suspend(struct snd_soc_component *component)
{
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
regcache_cache_only(rt1305->regmap, true);
regcache_mark_dirty(rt1305->regmap);
return 0;
}
static int rt1305_resume(struct snd_soc_component *component)
{
struct rt1305_priv *rt1305 = snd_soc_component_get_drvdata(component);
regcache_cache_only(rt1305->regmap, false);
regcache_sync(rt1305->regmap);
return 0;
}
#else
#define rt1305_suspend NULL
#define rt1305_resume NULL
#endif
#define RT1305_STEREO_RATES SNDRV_PCM_RATE_8000_192000
#define RT1305_FORMATS (SNDRV_PCM_FMTBIT_S8 | \
SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S16_LE | \
SNDRV_PCM_FMTBIT_S24_LE)
static const struct snd_soc_dai_ops rt1305_aif_dai_ops = {
.hw_params = rt1305_hw_params,
.set_fmt = rt1305_set_dai_fmt,
};
static struct snd_soc_dai_driver rt1305_dai[] = {
{
.name = "rt1305-aif",
.playback = {
.stream_name = "AIF1 Playback",
.channels_min = 1,
.channels_max = 2,
.rates = RT1305_STEREO_RATES,
.formats = RT1305_FORMATS,
},
.ops = &rt1305_aif_dai_ops,
},
};
static const struct snd_soc_component_driver soc_component_dev_rt1305 = {
.probe = rt1305_probe,
.remove = rt1305_remove,
.suspend = rt1305_suspend,
.resume = rt1305_resume,
.controls = rt1305_snd_controls,
.num_controls = ARRAY_SIZE(rt1305_snd_controls),
.dapm_widgets = rt1305_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rt1305_dapm_widgets),
.dapm_routes = rt1305_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(rt1305_dapm_routes),
.set_sysclk = rt1305_set_component_sysclk,
.set_pll = rt1305_set_component_pll,
.use_pmdown_time = 1,
.endianness = 1,
.non_legacy_dai_naming = 1,
};
static const struct regmap_config rt1305_regmap = {
.reg_bits = 8,
.val_bits = 16,
.max_register = RT1305_MAX_REG + 1 + (ARRAY_SIZE(rt1305_ranges) *
RT1305_PR_SPACING),
.volatile_reg = rt1305_volatile_register,
.readable_reg = rt1305_readable_register,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = rt1305_reg,
.num_reg_defaults = ARRAY_SIZE(rt1305_reg),
.ranges = rt1305_ranges,
.num_ranges = ARRAY_SIZE(rt1305_ranges),
.use_single_read = true,
.use_single_write = true,
};
#if defined(CONFIG_OF)
static const struct of_device_id rt1305_of_match[] = {
{ .compatible = "realtek,rt1305", },
{ .compatible = "realtek,rt1306", },
{},
};
MODULE_DEVICE_TABLE(of, rt1305_of_match);
#endif
#ifdef CONFIG_ACPI
static struct acpi_device_id rt1305_acpi_match[] = {
{"10EC1305", 0,},
{"10EC1306", 0,},
{},
};
MODULE_DEVICE_TABLE(acpi, rt1305_acpi_match);
#endif
static const struct i2c_device_id rt1305_i2c_id[] = {
{ "rt1305", 0 },
{ "rt1306", 0 },
{ }
};
MODULE_DEVICE_TABLE(i2c, rt1305_i2c_id);
static void rt1305_calibrate(struct rt1305_priv *rt1305)
{
unsigned int valmsb, vallsb, offsetl, offsetr;
unsigned int rh, rl, rhl, r0ohm;
u64 r0l, r0r;
regcache_cache_bypass(rt1305->regmap, true);
rt1305_reset(rt1305->regmap);
regmap_write(rt1305->regmap, RT1305_ADC_SET_3, 0x0219);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xcf, 0x5548);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xc1, 0x0320);
regmap_write(rt1305->regmap, RT1305_CLOCK_DETECT, 0x1000);
regmap_write(rt1305->regmap, RT1305_CLK_1, 0x0600);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xffd0);
regmap_write(rt1305->regmap, RT1305_EFUSE_1, 0x0080);
regmap_write(rt1305->regmap, RT1305_EFUSE_1, 0x0880);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_1, 0x0dfe);
/* Sin Gen */
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x5d, 0x0442);
regmap_write(rt1305->regmap, RT1305_CAL_EFUSE_CLOCK, 0xb000);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xc3, 0xd4a0);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xcc, 0x00cc);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xc1, 0x0320);
regmap_write(rt1305->regmap, RT1305_POWER_STATUS, 0x0000);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_2, 0xffff);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xfc20);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x06, 0x00c0);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xfca0);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xfce0);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xfcf0);
/* EFUSE read */
regmap_write(rt1305->regmap, RT1305_EFUSE_1, 0x0080);
regmap_write(rt1305->regmap, RT1305_EFUSE_1, 0x0880);
regmap_write(rt1305->regmap, RT1305_EFUSE_1, 0x0880);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xfce0);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xfca0);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xfc20);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x06, 0x0000);
regmap_write(rt1305->regmap, RT1305_EFUSE_1, 0x0000);
regmap_read(rt1305->regmap, RT1305_DAC_OFFSET_5, &valmsb);
regmap_read(rt1305->regmap, RT1305_DAC_OFFSET_6, &vallsb);
offsetl = valmsb << 16 | vallsb;
regmap_read(rt1305->regmap, RT1305_DAC_OFFSET_7, &valmsb);
regmap_read(rt1305->regmap, RT1305_DAC_OFFSET_8, &vallsb);
offsetr = valmsb << 16 | vallsb;
pr_info("DC offsetl=0x%x, offsetr=0x%x\n", offsetl, offsetr);
/* R0 calibration */
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x5d, 0x9542);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0xfcf0);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_2, 0xffff);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_1, 0x1dfe);
regmap_write(rt1305->regmap, RT1305_SILENCE_DETECT, 0x0e13);
regmap_write(rt1305->regmap, RT1305_CLK_1, 0x0650);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x50, 0x0064);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x51, 0x0770);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x52, 0xc30c);
regmap_write(rt1305->regmap, RT1305_SPK_TEMP_PROTECTION_1, 0x8200);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xd4, 0xfb00);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xd4, 0xff80);
msleep(2000);
regmap_read(rt1305->regmap, RT1305_PR_BASE + 0x55, &rh);
regmap_read(rt1305->regmap, RT1305_PR_BASE + 0x56, &rl);
rhl = (rh << 16) | rl;
r0ohm = (rhl*10) / 33554432;
pr_debug("Left_rhl = 0x%x rh=0x%x rl=0x%x\n", rhl, rh, rl);
pr_info("Left channel %d.%dohm\n", (r0ohm/10), (r0ohm%10));
r0l = 562949953421312ULL;
if (rhl != 0)
do_div(r0l, rhl);
pr_debug("Left_r0 = 0x%llx\n", r0l);
regmap_write(rt1305->regmap, RT1305_SPK_TEMP_PROTECTION_1, 0x9200);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xd4, 0xfb00);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xd4, 0xff80);
msleep(2000);
regmap_read(rt1305->regmap, RT1305_PR_BASE + 0x55, &rh);
regmap_read(rt1305->regmap, RT1305_PR_BASE + 0x56, &rl);
rhl = (rh << 16) | rl;
r0ohm = (rhl*10) / 33554432;
pr_debug("Right_rhl = 0x%x rh=0x%x rl=0x%x\n", rhl, rh, rl);
pr_info("Right channel %d.%dohm\n", (r0ohm/10), (r0ohm%10));
r0r = 562949953421312ULL;
if (rhl != 0)
do_div(r0r, rhl);
pr_debug("Right_r0 = 0x%llx\n", r0r);
regmap_write(rt1305->regmap, RT1305_SPK_TEMP_PROTECTION_1, 0xc2ec);
if ((r0l > R0_UPPER) && (r0l < R0_LOWER) &&
(r0r > R0_UPPER) && (r0r < R0_LOWER)) {
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x4e,
(r0l >> 16) & 0xffff);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x4f,
r0l & 0xffff);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xfe,
((r0r >> 16) & 0xffff) | 0xf800);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0xfd,
r0r & 0xffff);
} else {
pr_err("R0 calibration failed\n");
}
/* restore some registers */
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_1, 0x0dfe);
usleep_range(200000, 400000);
regmap_write(rt1305->regmap, RT1305_PR_BASE + 0x5d, 0x0442);
regmap_write(rt1305->regmap, RT1305_CLOCK_DETECT, 0x3000);
regmap_write(rt1305->regmap, RT1305_CLK_1, 0x0400);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_1, 0x0000);
regmap_write(rt1305->regmap, RT1305_CAL_EFUSE_CLOCK, 0x8000);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_2, 0x1020);
regmap_write(rt1305->regmap, RT1305_POWER_CTRL_3, 0x0000);
regcache_cache_bypass(rt1305->regmap, false);
}
static int rt1305_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct rt1305_priv *rt1305;
int ret;
unsigned int val;
rt1305 = devm_kzalloc(&i2c->dev, sizeof(struct rt1305_priv),
GFP_KERNEL);
if (rt1305 == NULL)
return -ENOMEM;
i2c_set_clientdata(i2c, rt1305);
rt1305->regmap = devm_regmap_init_i2c(i2c, &rt1305_regmap);
if (IS_ERR(rt1305->regmap)) {
ret = PTR_ERR(rt1305->regmap);
dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
regmap_read(rt1305->regmap, RT1305_DEVICE_ID, &val);
if (val != RT1305_DEVICE_ID_NUM) {
dev_err(&i2c->dev,
"Device with ID register %x is not rt1305\n", val);
return -ENODEV;
}
rt1305_reset(rt1305->regmap);
rt1305_calibrate(rt1305);
return devm_snd_soc_register_component(&i2c->dev,
&soc_component_dev_rt1305,
rt1305_dai, ARRAY_SIZE(rt1305_dai));
}
static void rt1305_i2c_shutdown(struct i2c_client *client)
{
struct rt1305_priv *rt1305 = i2c_get_clientdata(client);
rt1305_reset(rt1305->regmap);
}
static struct i2c_driver rt1305_i2c_driver = {
.driver = {
.name = "rt1305",
#if defined(CONFIG_OF)
.of_match_table = rt1305_of_match,
#endif
#if defined(CONFIG_ACPI)
.acpi_match_table = ACPI_PTR(rt1305_acpi_match)
#endif
},
.probe = rt1305_i2c_probe,
.shutdown = rt1305_i2c_shutdown,
.id_table = rt1305_i2c_id,
};
module_i2c_driver(rt1305_i2c_driver);
MODULE_DESCRIPTION("ASoC RT1305 amplifier driver");
MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
MODULE_LICENSE("GPL v2");
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