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android_kernel_samsung_msm8976/sound/soc/codecs/wsa881x-analog.c
Vidyakumar Athota 5923a37c0b ASoC: wsa881x: update temperature reading sequence 
Temperature reading sequence is updated in wsa881x version 2.0.
This change is to add new sequence for temperature reading.

Change-Id: Ide1dbc5ef450c5e67f10ee038a5763b9d45008f6
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>
2015-09-01 00:48:39 -07:00

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/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/device.h>
#include <linux/printk.h>
#include <linux/bitops.h>
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.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/q6afe-v2.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/gpio.h>
#include <linux/regmap.h>
#include "wsa881x-analog.h"
#include "wsa881x-temp-sensor.h"
#include "../msm/msm-audio-pinctrl.h"
#define SPK_GAIN_12DB 4
#define WIDGET_NAME_MAX_SIZE 80
/*
* Private data Structure for wsa881x. All parameters related to
* WSA881X codec needs to be defined here.
*/
struct wsa881x_pdata {
struct regmap *regmap[2];
struct i2c_client *client[2];
struct snd_soc_codec *codec;
/* track wsa881x status during probe */
int status;
bool boost_enable;
bool visense_enable;
int spk_pa_gain;
struct i2c_msg xfer_msg[2];
struct mutex xfer_lock;
bool regmap_flag;
bool wsa_active;
int index;
int (*enable_mclk)(struct snd_soc_card *, bool);
struct wsa881x_tz_priv tz_pdata;
int bg_cnt;
int clk_cnt;
int version;
struct mutex bg_lock;
struct mutex res_lock;
};
enum {
WSA881X_STATUS_PROBING,
WSA881X_STATUS_I2C,
};
static int32_t wsa881x_resource_acquire(struct snd_soc_codec *codec,
bool enable);
const char *wsa_tz_names[] = {"wsa881x.0e", "wsa881x.0f"};
struct wsa881x_pdata wsa_pdata[MAX_WSA881X_DEVICE];
static bool pinctrl_init;
static int wsa881x_populate_dt_pdata(struct device *dev);
static int wsa881x_reset(struct wsa881x_pdata *pdata, bool enable);
static int wsa881x_startup(struct wsa881x_pdata *pdata);
static int wsa881x_shutdown(struct wsa881x_pdata *pdata);
static int delay_array_msec[] = {10, 20, 30, 40, 50};
static int wsa881x_i2c_addr = -1;
static int wsa881x_probing_count;
static int wsa881x_presence_count;
static const char * const wsa881x_spk_pa_gain_text[] = {
"POS_13P5_DB", "POS_12_DB", "POS_10P5_DB", "POS_9_DB", "POS_7P5_DB",
"POS_6_DB", "POS_4P5_DB", "POS_3_DB", "POS_1P5_DB", "POS_0_DB"};
static const struct soc_enum wsa881x_spk_pa_gain_enum[] = {
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(wsa881x_spk_pa_gain_text),
wsa881x_spk_pa_gain_text),
};
static int wsa881x_spk_pa_gain_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
ucontrol->value.integer.value[0] = wsa881x->spk_pa_gain;
dev_dbg(codec->dev, "%s: spk_pa_gain = %ld\n", __func__,
ucontrol->value.integer.value[0]);
return 0;
}
static int wsa881x_spk_pa_gain_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
if (ucontrol->value.integer.value[0] < 0 ||
ucontrol->value.integer.value[0] > 0xC) {
dev_err(codec->dev, "%s: Unsupported gain val %ld\n",
__func__, ucontrol->value.integer.value[0]);
return -EINVAL;
}
wsa881x->spk_pa_gain = ucontrol->value.integer.value[0];
dev_dbg(codec->dev, "%s: ucontrol->value.integer.value[0] = %ld\n",
__func__, ucontrol->value.integer.value[0]);
return 0;
}
static int get_i2c_wsa881x_device_index(u16 reg)
{
u16 mask = 0x0f00;
int value = 0;
value = ((reg & mask) >> 8) & 0x000f;
switch (value) {
case 0:
return 0;
case 1:
return 1;
default:
break;
}
return -EINVAL;
}
static int wsa881x_i2c_write_device(struct wsa881x_pdata *wsa881x,
unsigned int reg, unsigned int val)
{
int i = 0, rc = 0;
int wsa881x_index;
struct i2c_msg *msg;
int ret = 0;
int bytes = 1;
u8 reg_addr = 0;
u8 data[bytes + 1];
wsa881x_index = get_i2c_wsa881x_device_index(reg);
if (wsa881x_index < 0) {
pr_err("%s:invalid register to write\n", __func__);
return -EINVAL;
}
if (wsa881x->regmap_flag) {
rc = regmap_write(wsa881x->regmap[wsa881x_index], reg, val);
for (i = 0; rc && i < ARRAY_SIZE(delay_array_msec); i++) {
pr_debug("Failed writing reg=%u - retry(%d)\n", reg, i);
/* retry after delay of increasing order */
msleep(delay_array_msec[i]);
rc = regmap_write(wsa881x->regmap[wsa881x_index],
reg, val);
}
if (rc)
pr_err("Failed writing reg=%u rc=%d\n", reg, rc);
else
pr_debug("write sucess register = %x val = %x\n",
reg, val);
} else {
reg_addr = (u8)reg;
msg = &wsa881x->xfer_msg[0];
msg->addr = wsa881x->client[wsa881x_index]->addr;
msg->len = bytes + 1;
msg->flags = 0;
data[0] = reg;
data[1] = (u8)val;
msg->buf = data;
ret = i2c_transfer(wsa881x->client[wsa881x_index]->adapter,
wsa881x->xfer_msg, 1);
/* Try again if the write fails */
if (ret != 1) {
ret = i2c_transfer(
wsa881x->client[wsa881x_index]->adapter,
wsa881x->xfer_msg, 1);
if (ret != 1) {
pr_err("failed to write the device\n");
return ret;
}
}
pr_debug("write sucess register = %x val = %x\n", reg, data[1]);
}
return rc;
}
static int wsa881x_i2c_read_device(struct wsa881x_pdata *wsa881x,
unsigned int reg)
{
int wsa881x_index;
int i = 0, rc = 0;
unsigned int val;
struct i2c_msg *msg;
int ret = 0;
u8 reg_addr = 0;
u8 dest[5];
wsa881x_index = get_i2c_wsa881x_device_index(reg);
if (wsa881x_index < 0) {
pr_err("%s:invalid register to read\n", __func__);
return -EINVAL;
}
if (wsa881x->regmap_flag) {
rc = regmap_read(wsa881x->regmap[wsa881x_index], reg, &val);
for (i = 0; rc && i < ARRAY_SIZE(delay_array_msec); i++) {
pr_debug("Failed reading reg=%u - retry(%d)\n", reg, i);
/* retry after delay of increasing order */
msleep(delay_array_msec[i]);
rc = regmap_read(wsa881x->regmap[wsa881x_index],
reg, &val);
}
if (rc) {
pr_err("Failed reading reg=%u rc=%d\n", reg, rc);
return rc;
} else {
pr_debug("read sucess register = %x val = %x\n",
reg, val);
}
} else {
reg_addr = (u8)reg;
msg = &wsa881x->xfer_msg[0];
msg->addr = wsa881x->client[wsa881x_index]->addr;
msg->len = 1;
msg->flags = 0;
msg->buf = &reg_addr;
msg = &wsa881x->xfer_msg[1];
msg->addr = wsa881x->client[wsa881x_index]->addr;
msg->len = 1;
msg->flags = I2C_M_RD;
msg->buf = dest;
ret = i2c_transfer(wsa881x->client[wsa881x_index]->adapter,
wsa881x->xfer_msg, 2);
/* Try again if read fails first time */
if (ret != 2) {
ret = i2c_transfer(
wsa881x->client[wsa881x_index]->adapter,
wsa881x->xfer_msg, 2);
if (ret != 2) {
pr_err("failed to read wsa register:%d\n",
reg);
return ret;
}
}
val = dest[0];
}
return val;
}
static unsigned int wsa881x_i2c_read(struct snd_soc_codec *codec,
unsigned int reg)
{
struct wsa881x_pdata *wsa881x;
unsigned int val;
int ret;
if (codec == NULL) {
pr_err("%s: invalid codec\n", __func__);
return -EINVAL;
}
wsa881x = snd_soc_codec_get_drvdata(codec);
if (!wsa881x->wsa_active) {
ret = snd_soc_cache_read(codec, reg, &val);
if (ret >= 0)
return val;
else
dev_err(codec->dev,
"cache read failed for reg: 0x%x ret: %d\n",
reg, ret);
return ret;
}
return wsa881x_i2c_read_device(wsa881x, reg);
}
static int wsa881x_i2c_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int val)
{
struct wsa881x_pdata *wsa881x;
int ret = 0;
if (codec == NULL) {
pr_err("%s: invalid codec\n", __func__);
return -EINVAL;
}
wsa881x = snd_soc_codec_get_drvdata(codec);
if (!wsa881x->wsa_active) {
ret = snd_soc_cache_write(codec, reg, val);
if (ret != 0)
dev_err(codec->dev, "cache write to %x failed: %d\n",
reg, ret);
return ret;
}
return wsa881x_i2c_write_device(wsa881x, reg, val);
}
static int wsa881x_i2c_get_client_index(struct i2c_client *client,
int *wsa881x_index)
{
int ret = 0;
switch (client->addr) {
case WSA881X_I2C_SPK0_SLAVE0_ADDR:
case WSA881X_I2C_SPK0_SLAVE1_ADDR:
*wsa881x_index = WSA881X_I2C_SPK0_SLAVE0;
break;
case WSA881X_I2C_SPK1_SLAVE0_ADDR:
case WSA881X_I2C_SPK1_SLAVE1_ADDR:
*wsa881x_index = WSA881X_I2C_SPK1_SLAVE0;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int wsa881x_temp_sensor_ctrl(struct snd_soc_codec *codec, bool enable)
{
dev_dbg(codec->dev, "%s: enable:%d\n", __func__, enable);
snd_soc_update_bits(codec, WSA881X_TEMP_OP, (0x01 << 2),
(enable << 2));
return 0;
}
static int wsa881x_boost_ctrl(struct snd_soc_codec *codec, bool enable)
{
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
pr_debug("%s: enable:%d\n", __func__, enable);
if (enable) {
if (!WSA881X_IS_2_0(wsa881x->version)) {
snd_soc_update_bits(codec, WSA881X_ANA_CTL,
0x01, 0x01);
snd_soc_update_bits(codec, WSA881X_ANA_CTL,
0x04, 0x04);
snd_soc_update_bits(codec, WSA881X_BOOST_PS_CTL,
0x40, 0x00);
snd_soc_update_bits(codec, WSA881X_BOOST_PRESET_OUT1,
0xF0, 0xB0);
snd_soc_update_bits(codec, WSA881X_BOOST_ZX_CTL,
0x20, 0x00);
snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL,
0x80, 0x80);
} else {
snd_soc_update_bits(codec, WSA881X_BOOST_LOOP_STABILITY,
0x03, 0x03);
snd_soc_update_bits(codec, WSA881X_BOOST_MISC2_CTL,
0xFF, 0x14);
snd_soc_update_bits(codec, WSA881X_BOOST_START_CTL,
0x80, 0x80);
snd_soc_update_bits(codec, WSA881X_BOOST_START_CTL,
0x03, 0x00);
snd_soc_update_bits(codec,
WSA881X_BOOST_SLOPE_COMP_ISENSE_FB,
0x0C, 0x04);
snd_soc_update_bits(codec,
WSA881X_BOOST_SLOPE_COMP_ISENSE_FB,
0x03, 0x00);
snd_soc_update_bits(codec, WSA881X_BOOST_PRESET_OUT1,
0xF0, 0x70);
snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x03, 0x01);
snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN,
0x08, 0x08);
snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x04, 0x04);
snd_soc_update_bits(codec, WSA881X_BOOST_CURRENT_LIMIT,
0x0F, 0x08);
snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL,
0x80, 0x80);
}
/* For WSA8810, start-up time is 1500us as per qcrg sequence */
usleep_range(1500, 1510);
} else {
/* ENSURE: Class-D amp is shutdown. CLK is still on */
snd_soc_update_bits(codec, WSA881X_BOOST_EN_CTL, 0x80, 0x00);
/* boost settle time is 1500us as per qcrg sequence */
usleep_range(1500, 1510);
}
return 0;
}
static int wsa881x_visense_txfe_ctrl(struct snd_soc_codec *codec, bool enable,
u8 isense1_gain, u8 isense2_gain,
u8 vsense_gain)
{
u8 value = 0;
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
pr_debug("%s: enable:%d\n", __func__, enable);
if (enable) {
if (WSA881X_IS_2_0(wsa881x->version)) {
snd_soc_update_bits(codec, WSA881X_OTP_REG_28,
0x3F, 0x3A);
snd_soc_update_bits(codec, WSA881X_BONGO_RESRV_REG1,
0xFF, 0xB2);
snd_soc_update_bits(codec, WSA881X_BONGO_RESRV_REG2,
0xFF, 0x05);
}
snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_VSENSE_VCM,
0x08, 0x00);
if (WSA881X_IS_2_0(wsa881x->version)) {
snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2,
0x1C, 0x04);
} else {
snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2,
0x08, 0x08);
snd_soc_update_bits(codec, WSA881X_SPKR_PROT_ATEST2,
0x02, 0x02);
}
value = ((isense2_gain << 6) | (isense1_gain << 4) |
(vsense_gain << 3));
snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN,
0xF8, value);
snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN,
0x01, 0x01);
} else {
if (WSA881X_IS_2_0(wsa881x->version))
snd_soc_update_bits(codec,
WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x10, 0x10);
else
snd_soc_update_bits(codec,
WSA881X_SPKR_PROT_FE_VSENSE_VCM, 0x08, 0x08);
/*
* 200us sleep is needed after visense txfe disable as per
* HW requirement.
*/
usleep_range(200, 210);
snd_soc_update_bits(codec, WSA881X_SPKR_PROT_FE_GAIN,
0x01, 0x00);
}
return 0;
}
static int wsa881x_visense_adc_ctrl(struct snd_soc_codec *codec, bool enable)
{
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
pr_debug("%s: enable:%d\n", __func__, enable);
if (enable) {
if (!WSA881X_IS_2_0(wsa881x->version))
snd_soc_update_bits(codec, WSA881X_ADC_SEL_IBIAS,
0x70, 0x40);
snd_soc_update_bits(codec, WSA881X_ADC_EN_SEL_IBIAS,
0x07, 0x04);
snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, 0x80, 0x80);
snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_I, 0x80, 0x80);
} else {
/* Ensure: Speaker Protection has been stopped */
snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V, 0x80, 0x00);
snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_I, 0x80, 0x00);
}
return 0;
}
static void wsa881x_bandgap_ctrl(struct snd_soc_codec *codec, bool enable)
{
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
dev_dbg(codec->dev, "%s: enable:%d, bg_count:%d\n", __func__,
enable, wsa881x->bg_cnt);
mutex_lock(&wsa881x->bg_lock);
if (enable) {
++wsa881x->bg_cnt;
if (wsa881x->bg_cnt == 1) {
snd_soc_update_bits(codec, WSA881X_TEMP_OP,
0x08, 0x08);
/* 400usec sleep is needed as per HW requirement */
usleep_range(400, 410);
}
} else {
--wsa881x->bg_cnt;
if (wsa881x->bg_cnt <= 0) {
WARN_ON(wsa881x->bg_cnt < 0);
wsa881x->bg_cnt = 0;
snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x08, 0x00);
}
}
mutex_unlock(&wsa881x->bg_lock);
}
static void wsa881x_clk_ctrl(struct snd_soc_codec *codec, bool enable)
{
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
dev_dbg(codec->dev, "%s:ss enable:%d, clk_count:%d\n", __func__,
enable, wsa881x->clk_cnt);
mutex_lock(&wsa881x->res_lock);
if (enable) {
++wsa881x->clk_cnt;
if (wsa881x->clk_cnt == 1) {
snd_soc_write(codec, WSA881X_CDC_RST_CTL, 0x02);
snd_soc_write(codec, WSA881X_CDC_RST_CTL, 0x03);
snd_soc_write(codec, WSA881X_CLOCK_CONFIG, 0x01);
snd_soc_write(codec, WSA881X_CDC_DIG_CLK_CTL, 0x01);
snd_soc_write(codec, WSA881X_CDC_ANA_CLK_CTL, 0x01);
}
} else {
--wsa881x->clk_cnt;
if (wsa881x->clk_cnt <= 0) {
WARN_ON(wsa881x->clk_cnt < 0);
wsa881x->clk_cnt = 0;
snd_soc_write(codec, WSA881X_CDC_ANA_CLK_CTL, 0x00);
snd_soc_write(codec, WSA881X_CDC_DIG_CLK_CTL, 0x00);
if (WSA881X_IS_2_0(wsa881x->version))
snd_soc_update_bits(codec,
WSA881X_CDC_TOP_CLK_CTL, 0x01, 0x00);
}
}
mutex_unlock(&wsa881x->res_lock);
}
static int wsa881x_rdac_ctrl(struct snd_soc_codec *codec, bool enable)
{
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
pr_debug("%s: enable:%d\n", __func__, enable);
if (enable) {
snd_soc_update_bits(codec, WSA881X_ANA_CTL, 0x08, 0x00);
snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0x08, 0x08);
snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x20, 0x20);
snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x20, 0x00);
snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x40, 0x40);
snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x80, 0x80);
if (WSA881X_IS_2_0(wsa881x->version)) {
snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL,
0x01, 0x01);
snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL,
0x30, 0x30);
snd_soc_update_bits(codec, WSA881X_SPKR_OCP_CTL,
0x0C, 0x00);
}
snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0xF0, 0x40);
snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0x01, 0x01);
} else {
/* Ensure class-D amp is off */
snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x80, 0x00);
}
return 0;
}
static int wsa881x_spkr_pa_ctrl(struct snd_soc_codec *codec, bool enable)
{
int ret = 0;
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
pr_debug("%s: enable:%d\n", __func__, enable);
if (enable) {
/*
* Ensure: Boost is enabled and stable, Analog input is up
* and outputting silence
*/
if (!WSA881X_IS_2_0(wsa881x->version)) {
snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_I,
0xFF, 0x01);
snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V,
0x02, 0x02);
snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_V,
0xFF, 0x10);
snd_soc_update_bits(codec, WSA881X_SPKR_PWRSTG_DBG,
0xA0, 0xA0);
snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN,
0x80, 0x80);
usleep_range(700, 710);
snd_soc_update_bits(codec, WSA881X_SPKR_PWRSTG_DBG,
0x00, 0x00);
snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_V,
0xFF, 0x00);
snd_soc_update_bits(codec, WSA881X_ADC_EN_MODU_V,
0x02, 0x00);
snd_soc_update_bits(codec, WSA881X_ADC_EN_DET_TEST_I,
0xFF, 0x00);
} else
snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN,
0x80, 0x80);
/* add 1000us delay as per qcrg */
usleep_range(1000, 1010);
snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, 0x01, 0x01);
if (WSA881X_IS_2_0(wsa881x->version))
snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL,
0x01, 0x00);
usleep_range(1000, 1010);
snd_soc_update_bits(codec, WSA881X_SPKR_DRV_GAIN, 0xF0,
(wsa881x->spk_pa_gain << 4));
if (wsa881x->visense_enable) {
ret = msm_gpioset_activate(CLIENT_WSA_BONGO_1,
"wsa_vi");
if (ret) {
pr_err("%s: gpio set cannot be activated %s\n",
__func__, "wsa_vi");
return ret;
}
wsa881x_visense_txfe_ctrl(codec, true,
0x00, 0x01, 0x00);
wsa881x_visense_adc_ctrl(codec, true);
wsa881x_temp_sensor_ctrl(codec, true);
}
} else {
/*
* Ensure: Boost is still on, Stream from Analog input and
* Speaker Protection has been stopped and input is at 0V
*/
if (WSA881X_IS_2_0(wsa881x->version)) {
snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL,
0x01, 0x01);
usleep_range(1000, 1010);
snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_CAL,
0x01, 0x00);
msleep(20);
snd_soc_update_bits(codec, WSA881X_ANA_CTL,
0x03, 0x00);
usleep_range(200, 210);
}
snd_soc_update_bits(codec, WSA881X_SPKR_DRV_EN, 0x80, 0x00);
}
return 0;
}
static int wsa881x_get_boost(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
ucontrol->value.integer.value[0] = wsa881x->boost_enable;
return 0;
}
static int wsa881x_set_boost(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
int value = ucontrol->value.integer.value[0];
dev_dbg(codec->dev, "%s: Boost enable current %d, new %d\n",
__func__, wsa881x->boost_enable, value);
wsa881x->boost_enable = value;
return 0;
}
static int wsa881x_get_visense(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
ucontrol->value.integer.value[0] = wsa881x->visense_enable;
return 0;
}
static int wsa881x_set_visense(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
int value = ucontrol->value.integer.value[0];
dev_dbg(codec->dev, "%s: VIsense enable current %d, new %d\n",
__func__, wsa881x->visense_enable, value);
wsa881x->visense_enable = value;
return 0;
}
static const struct snd_kcontrol_new wsa881x_snd_controls[] = {
SOC_SINGLE_EXT("BOOST Switch", SND_SOC_NOPM, 0, 1, 0,
wsa881x_get_boost, wsa881x_set_boost),
SOC_SINGLE_EXT("VISENSE Switch", SND_SOC_NOPM, 0, 1, 0,
wsa881x_get_visense, wsa881x_set_visense),
SOC_ENUM_EXT("WSA_SPK PA Gain", wsa881x_spk_pa_gain_enum[0],
wsa881x_spk_pa_gain_get, wsa881x_spk_pa_gain_put),
};
static const char * const rdac_text[] = {
"ZERO", "Switch",
};
static const struct soc_enum rdac_enum =
SOC_ENUM_SINGLE(0, 0, ARRAY_SIZE(rdac_text), rdac_text);
static const struct snd_kcontrol_new rdac_mux[] = {
SOC_DAPM_ENUM_VIRT("RDAC", rdac_enum)
};
static int wsa881x_rdac_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
int ret = 0;
dev_dbg(codec->dev, "%s: %s %d boost %d visense %d\n",
__func__, w->name, event,
wsa881x->boost_enable, wsa881x->visense_enable);
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
ret = wsa881x_startup(wsa881x);
if (ret) {
pr_err("%s: wsa startup failed ret: %d", __func__, ret);
return ret;
}
wsa881x_clk_ctrl(codec, true);
snd_soc_update_bits(codec, WSA881X_SPKR_DAC_CTL, 0x02, 0x02);
if (!WSA881X_IS_2_0(wsa881x->version))
snd_soc_update_bits(codec, WSA881X_BIAS_REF_CTRL,
0x0F, 0x08);
wsa881x_bandgap_ctrl(codec, true);
if (!WSA881X_IS_2_0(wsa881x->version))
snd_soc_update_bits(codec, WSA881X_SPKR_BBM_CTL,
0x02, 0x02);
snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0xC0, 0x80);
snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL1, 0x06, 0x06);
if (!WSA881X_IS_2_0(wsa881x->version)) {
snd_soc_update_bits(codec, WSA881X_SPKR_MISC_CTL2,
0x04, 0x04);
snd_soc_update_bits(codec, WSA881X_SPKR_BIAS_INT,
0x09, 0x09);
}
snd_soc_update_bits(codec, WSA881X_SPKR_PA_INT, 0xF0, 0x20);
if (WSA881X_IS_2_0(wsa881x->version))
snd_soc_update_bits(codec, WSA881X_SPKR_PA_INT,
0x0E, 0x0E);
if (wsa881x->boost_enable)
wsa881x_boost_ctrl(codec, true);
break;
case SND_SOC_DAPM_POST_PMU:
wsa881x_rdac_ctrl(codec, true);
break;
case SND_SOC_DAPM_PRE_PMD:
wsa881x_rdac_ctrl(codec, false);
if (wsa881x->visense_enable) {
wsa881x_visense_adc_ctrl(codec, false);
wsa881x_visense_txfe_ctrl(codec, false,
0x00, 0x01, 0x00);
ret = msm_gpioset_suspend(CLIENT_WSA_BONGO_1,
"wsa_vi");
if (ret) {
pr_err("%s: gpio set cannot be suspended %s\n",
__func__, "wsa_vi");
return ret;
}
}
break;
case SND_SOC_DAPM_POST_PMD:
if (wsa881x->boost_enable)
wsa881x_boost_ctrl(codec, false);
wsa881x_clk_ctrl(codec, false);
wsa881x_bandgap_ctrl(codec, false);
ret = wsa881x_shutdown(wsa881x);
if (ret < 0) {
pr_err("%s: wsa shutdown failed ret: %d",
__func__, ret);
return ret;
}
break;
default:
pr_err("%s: invalid event:%d\n", __func__, event);
return -EINVAL;
}
return 0;
}
static int wsa881x_spkr_pa_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
pr_debug("%s: %s %d\n", __func__, w->name, event);
switch (event) {
case SND_SOC_DAPM_POST_PMU:
wsa881x_spkr_pa_ctrl(codec, true);
break;
case SND_SOC_DAPM_PRE_PMD:
wsa881x_spkr_pa_ctrl(codec, false);
break;
default:
pr_err("%s: invalid event:%d\n", __func__, event);
return -EINVAL;
}
return 0;
}
static const struct snd_soc_dapm_widget wsa881x_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("WSA_IN"),
SND_SOC_DAPM_DAC_E("RDAC Analog", NULL, SND_SOC_NOPM, 0, 0,
wsa881x_rdac_event,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_VIRT_MUX("WSA_RDAC", SND_SOC_NOPM, 0, 0,
rdac_mux),
SND_SOC_DAPM_PGA_S("WSA_SPKR PGA", 1, SND_SOC_NOPM, 0, 0,
wsa881x_spkr_pa_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUTPUT("WSA_SPKR"),
};
static const struct snd_soc_dapm_route wsa881x_audio_map[] = {
{"WSA_RDAC", "Switch", "WSA_IN"},
{"RDAC Analog", NULL, "WSA_RDAC"},
{"WSA_SPKR PGA", NULL, "RDAC Analog"},
{"WSA_SPKR", NULL, "WSA_SPKR PGA"},
};
static int wsa881x_startup(struct wsa881x_pdata *pdata)
{
int ret = 0;
struct snd_soc_codec *codec = pdata->codec;
pr_debug("%s(): wsa startup\n", __func__);
ret = msm_gpioset_activate(CLIENT_WSA_BONGO_1, "wsa_clk");
if (ret) {
pr_err("%s: gpio set cannot be activated %s\n",
__func__, "wsa_clk");
return ret;
}
if (pdata->enable_mclk) {
ret = pdata->enable_mclk(codec->card, true);
if (ret < 0) {
pr_err("%s: mclk enable failed %d\n",
__func__, ret);
return ret;
}
}
ret = wsa881x_reset(pdata, true);
return ret;
}
static int wsa881x_shutdown(struct wsa881x_pdata *pdata)
{
int ret = 0, reg;
struct snd_soc_codec *codec = pdata->codec;
pr_debug("%s(): wsa shutdown\n", __func__);
ret = wsa881x_reset(pdata, false);
if (ret) {
pr_err("%s: wsa reset failed suspend %d\n",
__func__, ret);
return ret;
}
if (pdata->enable_mclk) {
ret = pdata->enable_mclk(codec->card, false);
if (ret < 0) {
pr_err("%s: mclk disable failed %d\n",
__func__, ret);
return ret;
}
}
ret = msm_gpioset_suspend(CLIENT_WSA_BONGO_1, "wsa_clk");
if (ret) {
pr_err("%s: gpio set cannot be suspended %s\n",
__func__, "wsa_clk");
return ret;
}
if (pdata->codec) {
/* restore defaults to cache */
for (reg = 0; reg < ARRAY_SIZE(wsa881x_ana_reg_defaults);
reg++) {
if (wsa881x_ana_reg_readable[reg])
snd_soc_cache_write(pdata->codec,
wsa881x_ana_reg_defaults[reg].reg,
wsa881x_ana_reg_defaults[reg].def);
}
}
return 0;
}
static int32_t wsa881x_resource_acquire(struct snd_soc_codec *codec,
bool enable)
{
int ret = 0;
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
if (enable) {
ret = wsa881x_startup(wsa881x);
if (ret < 0) {
pr_err("%s: failed to startup\n", __func__);
return ret;
}
}
wsa881x_clk_ctrl(codec, enable);
wsa881x_bandgap_ctrl(codec, enable);
if (!enable) {
ret = wsa881x_shutdown(wsa881x);
if (ret < 0)
pr_err("%s: failed to shutdown\n", __func__);
}
return ret;
}
static int32_t wsa881x_temp_reg_read(struct snd_soc_codec *codec,
struct wsa_temp_register *wsa_temp_reg)
{
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
if (!wsa881x) {
dev_err(codec->dev, "%s: wsa881x is NULL\n", __func__);
return -EINVAL;
}
wsa881x_resource_acquire(codec, true);
snd_soc_update_bits(codec, WSA881X_TEMP_OP, 0x04, 0x04);
if (WSA881X_IS_2_0(wsa881x->version)) {
snd_soc_update_bits(codec, WSA881X_TADC_VALUE_CTL, 0x01, 0x00);
wsa_temp_reg->dmeas_msb = snd_soc_read(codec, WSA881X_TEMP_MSB);
wsa_temp_reg->dmeas_lsb = snd_soc_read(codec, WSA881X_TEMP_LSB);
snd_soc_update_bits(codec, WSA881X_TADC_VALUE_CTL, 0x01, 0x01);
} else {
wsa_temp_reg->dmeas_msb = snd_soc_read(codec,
WSA881X_TEMP_DOUT_MSB);
wsa_temp_reg->dmeas_lsb = snd_soc_read(codec,
WSA881X_TEMP_DOUT_LSB);
}
wsa_temp_reg->d1_msb = snd_soc_read(codec, WSA881X_OTP_REG_1);
wsa_temp_reg->d1_lsb = snd_soc_read(codec, WSA881X_OTP_REG_2);
wsa_temp_reg->d2_msb = snd_soc_read(codec, WSA881X_OTP_REG_3);
wsa_temp_reg->d2_lsb = snd_soc_read(codec, WSA881X_OTP_REG_4);
wsa881x_resource_acquire(codec, false);
return 0;
}
static int wsa881x_probe(struct snd_soc_codec *codec)
{
struct i2c_client *client;
int ret = 0;
int wsa881x_index = 0;
struct snd_soc_dapm_context *dapm = &codec->dapm;
char *widget_name = NULL;
client = dev_get_drvdata(codec->dev);
ret = wsa881x_i2c_get_client_index(client, &wsa881x_index);
if (ret != 0) {
dev_err(&client->dev, "%s: I2C get codec I2C\n"
"client failed\n", __func__);
return ret;
}
mutex_init(&wsa_pdata[wsa881x_index].bg_lock);
mutex_init(&wsa_pdata[wsa881x_index].res_lock);
snprintf(wsa_pdata[wsa881x_index].tz_pdata.name, 100, "%s",
wsa_tz_names[wsa881x_index]);
wsa_pdata[wsa881x_index].codec = codec;
wsa_pdata[wsa881x_index].spk_pa_gain = SPK_GAIN_12DB;
wsa_pdata[wsa881x_index].codec = codec;
wsa_pdata[wsa881x_index].tz_pdata.codec = codec;
wsa_pdata[wsa881x_index].tz_pdata.wsa_temp_reg_read =
wsa881x_temp_reg_read;
snd_soc_codec_set_drvdata(codec, &wsa_pdata[wsa881x_index]);
wsa881x_init_thermal(&wsa_pdata[wsa881x_index].tz_pdata);
if (codec->name_prefix) {
widget_name = kcalloc(WIDGET_NAME_MAX_SIZE, sizeof(char),
GFP_KERNEL);
if (!widget_name) {
pr_err("%s: Cannot allocate memory for widget name",
__func__);
return -ENOMEM;
}
snprintf(widget_name, WIDGET_NAME_MAX_SIZE,
"%s WSA_SPKR", codec->name_prefix);
snd_soc_dapm_ignore_suspend(dapm, widget_name);
snprintf(widget_name, WIDGET_NAME_MAX_SIZE,
"%s WSA_IN", codec->name_prefix);
snd_soc_dapm_ignore_suspend(dapm, widget_name);
kfree(widget_name);
} else {
snd_soc_dapm_ignore_suspend(dapm, "WSA_SPKR");
snd_soc_dapm_ignore_suspend(dapm, "WSA_IN");
}
snd_soc_dapm_sync(dapm);
return 0;
}
static int wsa881x_remove(struct snd_soc_codec *codec)
{
struct wsa881x_pdata *wsa881x = snd_soc_codec_get_drvdata(codec);
if (wsa881x->tz_pdata.tz_dev)
wsa881x_deinit_thermal(wsa881x->tz_pdata.tz_dev);
mutex_destroy(&wsa881x->bg_lock);
mutex_destroy(&wsa881x->res_lock);
return 0;
}
static struct snd_soc_codec_driver soc_codec_dev_wsa881x = {
.probe = wsa881x_probe,
.remove = wsa881x_remove,
.read = wsa881x_i2c_read,
.write = wsa881x_i2c_write,
.reg_cache_size = WSA881X_CACHE_SIZE,
.reg_cache_default = wsa881x_ana_reg_defaults,
.reg_word_size = 1,
.controls = wsa881x_snd_controls,
.num_controls = ARRAY_SIZE(wsa881x_snd_controls),
.dapm_widgets = wsa881x_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wsa881x_dapm_widgets),
.dapm_routes = wsa881x_audio_map,
.num_dapm_routes = ARRAY_SIZE(wsa881x_audio_map),
};
static int wsa881x_reset(struct wsa881x_pdata *pdata, bool enable)
{
int ret = 0;
/*
* shutdown the GPIOs WSA_EN, WSA_MCLK, regulators
* and restore defaults in soc cache when shutdown.
* Enable regulators, GPIOs WSA_MCLK, WSA_EN when powerup.
*/
if (enable) {
if (pdata->wsa_active)
return 0;
ret = msm_gpioset_activate(CLIENT_WSA_BONGO_1, "wsa_reset");
if (ret) {
pr_err("%s: gpio set cannot be activated %s\n",
__func__, "wsa_reset");
return ret;
}
ret = msm_gpioset_suspend(CLIENT_WSA_BONGO_1, "wsa_reset");
if (ret) {
pr_err("%s: gpio set cannot be suspended(powerup) %s\n",
__func__, "wsa_reset");
return ret;
}
ret = msm_gpioset_activate(CLIENT_WSA_BONGO_1, "wsa_reset");
if (ret) {
pr_err("%s: gpio set cannot be activated %s\n",
__func__, "wsa_reset");
return ret;
}
pdata->wsa_active = true;
} else {
if (!pdata->wsa_active)
return 0;
ret = msm_gpioset_suspend(CLIENT_WSA_BONGO_1, "wsa_reset");
if (ret) {
pr_err("%s: gpio set cannot be suspended %s\n",
__func__, "wsa_reset");
return ret;
}
pdata->wsa_active = false;
}
return ret;
}
int wsa881x_get_client_index(void)
{
return wsa881x_i2c_addr;
}
EXPORT_SYMBOL(wsa881x_get_client_index);
int wsa881x_get_probing_count(void)
{
return wsa881x_probing_count;
}
EXPORT_SYMBOL(wsa881x_get_probing_count);
int wsa881x_get_presence_count(void)
{
return wsa881x_presence_count;
}
EXPORT_SYMBOL(wsa881x_get_presence_count);
int wsa881x_set_mclk_callback(
int (*enable_mclk_callback)(struct snd_soc_card *, bool))
{
int i;
for (i = 0; i < MAX_WSA881X_DEVICE; i++) {
if (wsa_pdata[i].status == WSA881X_STATUS_I2C)
wsa_pdata[i].enable_mclk = enable_mclk_callback;
}
return 0;
}
EXPORT_SYMBOL(wsa881x_set_mclk_callback);
static int check_wsa881x_presence(struct i2c_client *client)
{
int ret = 0;
int wsa881x_index = 0;
ret = wsa881x_i2c_get_client_index(client, &wsa881x_index);
if (ret != 0) {
dev_err(&client->dev, "%s: I2C get codec I2C\n"
"client failed\n", __func__);
return ret;
}
ret = wsa881x_i2c_read_device(&wsa_pdata[wsa881x_index],
WSA881X_CDC_RST_CTL);
if (ret < 0) {
dev_err(&client->dev, "failed to read wsa881x with addr %x\n",
client->addr);
return ret;
}
ret = wsa881x_i2c_write_device(&wsa_pdata[wsa881x_index],
WSA881X_CDC_RST_CTL, 0x01);
if (ret < 0) {
dev_err(&client->dev, "failed write addr %x reg:0x5 val:0x1\n",
client->addr);
return ret;
}
/* allow 20ms before trigger next write to verify bongo presence */
msleep(20);
ret = wsa881x_i2c_write_device(&wsa_pdata[wsa881x_index],
WSA881X_CDC_RST_CTL, 0x00);
if (ret < 0) {
dev_err(&client->dev, "failed write addr %x reg:0x5 val:0x0\n",
client->addr);
return ret;
}
return ret;
}
static int wsa881x_populate_dt_pdata(struct device *dev)
{
int ret = 0;
/* reading the gpio configurations from dtsi file */
if (!pinctrl_init) {
ret = msm_gpioset_initialize(CLIENT_WSA_BONGO_1, dev);
if (ret < 0) {
dev_err(dev,
"%s: error reading dtsi files%d\n", __func__, ret);
goto err;
}
pinctrl_init = true;
}
err:
return ret;
}
static int wsa881x_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret = 0;
int wsa881x_index = 0;
struct wsa881x_pdata *pdata = NULL;
ret = wsa881x_i2c_get_client_index(client, &wsa881x_index);
if (ret != 0) {
dev_err(&client->dev, "%s: I2C get codec I2C\n"
"client failed\n", __func__);
return ret;
}
pdata = &wsa_pdata[wsa881x_index];
if ((client->addr == WSA881X_I2C_SPK0_SLAVE1_ADDR ||
client->addr == WSA881X_I2C_SPK1_SLAVE1_ADDR) &&
(pdata->status == WSA881X_STATUS_PROBING))
return ret;
if (pdata->status == WSA881X_STATUS_I2C) {
dev_dbg(&client->dev, "%s:probe for other slaves\n"
"devices of codec I2C slave Addr = %x\n",
__func__, client->addr);
dev_dbg(&client->dev, "%s:wsa_idx = %d SLAVE = %d\n",
__func__, wsa881x_index, WSA881X_ANALOG_SLAVE);
pdata->regmap[WSA881X_ANALOG_SLAVE] =
devm_regmap_init_i2c(
client,
&wsa881x_ana_regmap_config[WSA881X_ANALOG_SLAVE]);
regcache_cache_bypass(pdata->regmap[WSA881X_ANALOG_SLAVE],
true);
if (IS_ERR(pdata->regmap[WSA881X_ANALOG_SLAVE])) {
ret = PTR_ERR(pdata->regmap[WSA881X_ANALOG_SLAVE]);
dev_err(&client->dev,
"%s: regmap_init failed %d\n",
__func__, ret);
}
client->dev.platform_data = pdata;
i2c_set_clientdata(client, pdata);
pdata->client[WSA881X_ANALOG_SLAVE] = client;
if (pdata->version == WSA881X_2_0)
wsa881x_update_regmap_2_0(
pdata->regmap[WSA881X_ANALOG_SLAVE],
WSA881X_ANALOG_SLAVE);
return ret;
} else if (pdata->status == WSA881X_STATUS_PROBING) {
pdata->index = wsa881x_index;
if (client->dev.of_node) {
dev_dbg(&client->dev, "%s:Platform data\n"
"from device tree\n", __func__);
ret = wsa881x_populate_dt_pdata(&client->dev);
if (ret < 0) {
dev_err(&client->dev,
"%s: Fail to obtain pdata from device tree\n",
__func__);
ret = -EINVAL;
goto err;
}
client->dev.platform_data = pdata;
} else {
dev_dbg(&client->dev, "%s:Platform data from\n"
"board file\n", __func__);
pdata = client->dev.platform_data;
}
if (!pdata) {
dev_dbg(&client->dev, "no platform data?\n");
ret = -EINVAL;
goto err;
}
i2c_set_clientdata(client, pdata);
dev_set_drvdata(&client->dev, client);
pdata->regmap[WSA881X_DIGITAL_SLAVE] =
devm_regmap_init_i2c(
client,
&wsa881x_ana_regmap_config[WSA881X_DIGITAL_SLAVE]);
regcache_cache_bypass(pdata->regmap[WSA881X_DIGITAL_SLAVE],
true);
if (IS_ERR(pdata->regmap[WSA881X_DIGITAL_SLAVE])) {
ret = PTR_ERR(pdata->regmap[WSA881X_DIGITAL_SLAVE]);
dev_err(&client->dev, "%s: regmap_init failed %d\n",
__func__, ret);
goto err;
}
/* bus reset sequence */
ret = wsa881x_reset(pdata, true);
if (ret < 0) {
dev_err(&client->dev, "%s: WSA enable Failed %d\n",
__func__, ret);
goto err;
}
pdata->client[WSA881X_DIGITAL_SLAVE] = client;
pdata->regmap_flag = true;
ret = check_wsa881x_presence(client);
if (ret < 0) {
dev_err(&client->dev,
"failed to ping wsa with addr:%x, ret = %d\n",
client->addr, ret);
wsa881x_probing_count++;
goto err1;
}
pdata->version = wsa881x_i2c_read_device(pdata,
WSA881X_CHIP_ID1);
pr_debug("%s: wsa881x version: %d\n", __func__, pdata->version);
if (pdata->version == WSA881X_2_0) {
wsa881x_update_reg_defaults_2_0();
wsa881x_update_regmap_2_0(
pdata->regmap[WSA881X_DIGITAL_SLAVE],
WSA881X_DIGITAL_SLAVE);
}
wsa881x_presence_count++;
wsa881x_probing_count++;
ret = snd_soc_register_codec(&client->dev,
&soc_codec_dev_wsa881x,
NULL, 0);
if (ret < 0)
goto err1;
pdata->status = WSA881X_STATUS_I2C;
}
err1:
wsa881x_reset(pdata, false);
err:
return 0;
}
static int wsa881x_i2c_remove(struct i2c_client *client)
{
struct wsa881x_pdata *wsa881x = i2c_get_clientdata(client);
snd_soc_unregister_codec(&client->dev);
i2c_set_clientdata(client, NULL);
kfree(wsa881x);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int wsa881x_i2c_suspend(struct device *dev)
{
pr_debug("%s: system suspend\n", __func__);
return 0;
}
static int wsa881x_i2c_resume(struct device *dev)
{
pr_debug("%s: system resume\n", __func__);
return 0;
}
static const struct dev_pm_ops wsa881x_i2c_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(wsa881x_i2c_suspend, wsa881x_i2c_resume)
};
#endif /* CONFIG_PM_SLEEP */
static const struct i2c_device_id wsa881x_i2c_id[] = {
{"wsa881x-i2c-dev", WSA881X_I2C_SPK0_SLAVE0_ADDR},
{"wsa881x-i2c-dev", WSA881X_I2C_SPK0_SLAVE1_ADDR},
{"wsa881x-i2c-dev", WSA881X_I2C_SPK1_SLAVE0_ADDR},
{"wsa881x-i2c-dev", WSA881X_I2C_SPK1_SLAVE1_ADDR},
{}
};
MODULE_DEVICE_TABLE(i2c, wsa881x_i2c_id);
static struct of_device_id msm_match_table[] = {
{.compatible = "qcom,wsa881x-i2c-codec"},
{}
};
MODULE_DEVICE_TABLE(of, msm_match_table);
static struct i2c_driver wsa881x_codec_driver = {
.driver = {
.name = "wsa881x-i2c-codec",
.owner = THIS_MODULE,
#ifdef CONFIG_PM_SLEEP
.pm = &wsa881x_i2c_pm_ops,
#endif
.of_match_table = msm_match_table,
},
.id_table = wsa881x_i2c_id,
.probe = wsa881x_i2c_probe,
.remove = wsa881x_i2c_remove,
};
static int __init wsa881x_codec_init(void)
{
int i = 0;
for (i = 0; i < MAX_WSA881X_DEVICE; i++)
wsa_pdata[i].status = WSA881X_STATUS_PROBING;
return i2c_add_driver(&wsa881x_codec_driver);
}
module_init(wsa881x_codec_init);
static void __exit wsa881x_codec_exit(void)
{
i2c_del_driver(&wsa881x_codec_driver);
}
module_exit(wsa881x_codec_exit);
MODULE_DESCRIPTION("WSA881x Codec driver");
MODULE_LICENSE("GPL v2");
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