Piteball
/
android_kernel_samsung_msm8976
mirror of https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
1
1
Fork 0
Code Issues Projects Releases Wiki Activity
android_kernel_samsung_msm8976/drivers/mfd/wcd9xxx-core.c

3483 lines
90 KiB
C
Raw Permalink Blame History

/* Copyright (c) 2011-2016, 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/kernel.h>
#include <linux/module.h>
#include <linux/of_gpio.h>
#include <linux/of_irq.h>
#include <linux/of_device.h>
#include <linux/slab.h>
#include <linux/ratelimit.h>
#include <linux/mfd/core.h>
#include <linux/mfd/wcd9xxx/wcd9xxx-slimslave.h>
#include <linux/mfd/wcd9xxx/core.h>
#include <linux/mfd/wcd9xxx/core-resource.h>
#include <linux/mfd/wcd9xxx/pdata.h>
#include <linux/mfd/wcd9xxx/wcd9xxx_registers.h>
#include <linux/mfd/wcd9xxx/wcd-gpio-ctrl.h>
#include <linux/mfd/wcd9335/registers.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/debugfs.h>
#include <linux/regulator/consumer.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "wcd9xxx-regmap.h"
#define WCD9XXX_REGISTER_START_OFFSET 0x800
#define WCD9XXX_SLIM_RW_MAX_TRIES 3
#define SLIMBUS_PRESENT_TIMEOUT 100
#define MAX_WCD9XXX_DEVICE 4
#define CODEC_DT_MAX_PROP_SIZE 40
#define WCD9XXX_I2C_GSBI_SLAVE_ID "3-000d"
#define WCD9XXX_I2C_TOP_SLAVE_ADDR 0x0d
#define WCD9XXX_ANALOG_I2C_SLAVE_ADDR 0x77
#define WCD9XXX_DIGITAL1_I2C_SLAVE_ADDR 0x66
#define WCD9XXX_DIGITAL2_I2C_SLAVE_ADDR 0x55
#define WCD9XXX_I2C_TOP_LEVEL 0
#define WCD9XXX_I2C_ANALOG 1
#define WCD9XXX_I2C_DIGITAL_1 2
#define WCD9XXX_I2C_DIGITAL_2 3
#define ONDEMAND_REGULATOR true
#define STATIC_REGULATOR (!ONDEMAND_REGULATOR)
/* Page Register Address that APP Proc uses to
* access WCD9335 Codec registers is identified
* as 0x00
*/
#define PAGE_REG_ADDR 0x00
/* Number of return values needs to be checked for each
* registration of Slimbus of I2C bus for each codec
*/
#define NUM_WCD9XXX_REG_RET 10
#define SLIM_USR_MC_REPEAT_CHANGE_VALUE 0x0
#define SLIM_REPEAT_WRITE_MAX_SLICE 16
#define REG_BYTES 2
#define VAL_BYTES 1
#define WCD9XXX_PAGE_NUM(reg) (((reg) >> 8) & 0xff)
struct wcd9xxx_i2c {
struct i2c_client *client;
struct i2c_msg xfer_msg[2];
struct mutex xfer_lock;
int mod_id;
};
struct pinctrl_info {
struct pinctrl *pinctrl;
struct pinctrl_state *extncodec_sus;
struct pinctrl_state *extncodec_act;
};
static struct pinctrl_info pinctrl_info;
static struct regmap_config wcd9xxx_base_regmap_config = {
.reg_bits = 16,
.val_bits = 8,
.can_multi_write = true,
};
static const int wcd9xxx_cdc_types[] = {
[WCD9XXX] = WCD9XXX,
[WCD9330] = WCD9330,
[WCD9335] = WCD9335,
};
static int extcodec_get_pinctrl(struct device *dev)
{
struct pinctrl *pinctrl;
pinctrl = pinctrl_get(dev);
if (IS_ERR(pinctrl)) {
pr_err("%s: Unable to get pinctrl handle\n", __func__);
return -EINVAL;
}
pinctrl_info.pinctrl = pinctrl;
/* get all the states handles from Device Tree */
pinctrl_info.extncodec_sus = pinctrl_lookup_state(pinctrl, "suspend");
if (IS_ERR(pinctrl_info.extncodec_sus)) {
pr_err("%s: Unable to get pinctrl disable state handle, err: %ld\n",
__func__, PTR_ERR(pinctrl_info.extncodec_sus));
return -EINVAL;
}
pinctrl_info.extncodec_act = pinctrl_lookup_state(pinctrl, "active");
if (IS_ERR(pinctrl_info.extncodec_act)) {
pr_err("%s: Unable to get pinctrl disable state handle, err: %ld\n",
__func__, PTR_ERR(pinctrl_info.extncodec_act));
return -EINVAL;
}
return 0;
}
static int wcd9xxx_dt_parse_vreg_info(struct device *dev,
struct wcd9xxx_regulator *vreg,
const char *vreg_name, bool ondemand);
static int wcd9xxx_dt_parse_micbias_info(struct device *dev,
struct wcd9xxx_micbias_setting *micbias);
static struct wcd9xxx_pdata *wcd9xxx_populate_dt_pdata(struct device *dev);
static int wcd9xxx_slim_device_up(struct slim_device *sldev);
static int wcd9xxx_slim_device_down(struct slim_device *sldev);
static int wcd9xxx_enable_static_supplies(struct wcd9xxx *wcd9xxx,
struct wcd9xxx_pdata *pdata);
struct wcd9xxx_i2c wcd9xxx_modules[MAX_WCD9XXX_DEVICE];
static int wcd9xxx_read(struct wcd9xxx *wcd9xxx, unsigned short reg,
int bytes, void *dest, bool interface_reg)
{
int i, ret;
if (bytes <= 0) {
dev_err(wcd9xxx->dev, "Invalid byte read length %d\n", bytes);
return -EINVAL;
}
ret = wcd9xxx->read_dev(wcd9xxx, reg, bytes, dest, interface_reg);
if (ret < 0) {
dev_err(wcd9xxx->dev, "Codec read failed\n");
return ret;
} else {
for (i = 0; i < bytes; i++)
dev_dbg(wcd9xxx->dev, "Read 0x%02x from 0x%x\n",
((u8 *)dest)[i], reg + i);
}
return 0;
}
/* Called under io_lock acquisition */
static int wcd9xxx_page_write(struct wcd9xxx *wcd9xxx, unsigned short *reg)
{
int ret = 0;
unsigned short c_reg, reg_addr;
u8 pg_num, prev_pg_num;
if (wcd9xxx->type != WCD9335)
return ret;
c_reg = *reg;
pg_num = c_reg >> 8;
reg_addr = c_reg & 0xff;
if (wcd9xxx->prev_pg_valid) {
prev_pg_num = wcd9xxx->prev_pg;
if (prev_pg_num != pg_num) {
ret = wcd9xxx->write_dev(
wcd9xxx, PAGE_REG_ADDR, 1,
(void *) &pg_num, false);
if (ret < 0)
pr_err("page write error, pg_num: 0x%x\n",
pg_num);
else {
wcd9xxx->prev_pg = pg_num;
dev_dbg(wcd9xxx->dev, "%s: Page 0x%x Write to 0x00\n",
__func__, pg_num);
}
}
} else {
ret = wcd9xxx->write_dev(
wcd9xxx, PAGE_REG_ADDR, 1, (void *) &pg_num,
false);
if (ret < 0)
pr_err("page write error, pg_num: 0x%x\n", pg_num);
else {
wcd9xxx->prev_pg = pg_num;
wcd9xxx->prev_pg_valid = true;
dev_dbg(wcd9xxx->dev, "%s: Page 0x%x Write to 0x00\n",
__func__, pg_num);
}
}
*reg = reg_addr;
return ret;
}
static bool is_wcd9xxx_reg_power_down(struct wcd9xxx *wcd9xxx, u16 rreg)
{
bool ret = false;
int i;
struct wcd9xxx_power_region *wcd9xxx_pwr;
if (!wcd9xxx)
return ret;
for (i = 0; i < WCD9XXX_MAX_PWR_REGIONS; i++) {
wcd9xxx_pwr = wcd9xxx->wcd9xxx_pwr[i];
if (!wcd9xxx_pwr)
continue;
if (((wcd9xxx_pwr->pwr_collapse_reg_min == 0) &&
(wcd9xxx_pwr->pwr_collapse_reg_max == 0)) ||
(wcd9xxx_pwr->power_state ==
WCD_REGION_POWER_COLLAPSE_REMOVE))
ret = false;
else if (((wcd9xxx_pwr->power_state ==
WCD_REGION_POWER_DOWN) ||
(wcd9xxx_pwr->power_state ==
WCD_REGION_POWER_COLLAPSE_BEGIN)) &&
(rreg >= wcd9xxx_pwr->pwr_collapse_reg_min) &&
(rreg <= wcd9xxx_pwr->pwr_collapse_reg_max))
ret = true;
}
return ret;
}
static int regmap_slim_read(void *context, const void *reg, size_t reg_size,
void *val, size_t val_size)
{
struct device *dev = context;
struct wcd9xxx *wcd9xxx = dev_get_drvdata(dev);
unsigned short c_reg, rreg;
int ret, i;
if (!wcd9xxx) {
dev_err(dev, "%s: wcd9xxx is NULL\n", __func__);
return -EINVAL;
}
if (!reg || !val) {
dev_err(dev, "%s: reg or val is NULL\n", __func__);
return -EINVAL;
}
if (reg_size != REG_BYTES) {
dev_err(dev, "%s: register size %zd bytes, not supported\n",
__func__, reg_size);
return -EINVAL;
}
mutex_lock(&wcd9xxx->io_lock);
c_reg = *(u16 *)reg;
rreg = c_reg;
if (is_wcd9xxx_reg_power_down(wcd9xxx, rreg)) {
ret = 0;
goto err;
}
ret = wcd9xxx_page_write(wcd9xxx, &c_reg);
if (ret)
goto err;
ret = wcd9xxx->read_dev(wcd9xxx, c_reg, val_size, val, false);
if (ret < 0)
dev_err(dev, "%s: Codec read failed (%d), reg: 0x%x\n",
__func__, ret, rreg);
else {
for (i = 0; i < val_size; i++)
dev_dbg(dev, "%s: Read 0x%02x from 0x%x\n",
__func__, ((u8 *)val)[i], rreg + i);
}
err:
mutex_unlock(&wcd9xxx->io_lock);
return ret;
}
static int __wcd9xxx_reg_read(
struct wcd9xxx *wcd9xxx,
unsigned short reg)
{
unsigned int val = 0;
int ret;
if (wcd9xxx->using_regmap) {
ret = regmap_read(wcd9xxx->regmap, reg, &val);
} else {
mutex_lock(&wcd9xxx->io_lock);
ret = wcd9xxx_read(wcd9xxx, reg, 1, &val, false);
mutex_unlock(&wcd9xxx->io_lock);
}
if (ret < 0)
return ret;
else
return val;
}
int wcd9xxx_reg_read(
struct wcd9xxx_core_resource *core_res,
unsigned short reg)
{
struct wcd9xxx *wcd9xxx = (struct wcd9xxx *) core_res->parent;
return __wcd9xxx_reg_read(wcd9xxx, reg);
}
EXPORT_SYMBOL(wcd9xxx_reg_read);
static int wcd9xxx_write(struct wcd9xxx *wcd9xxx, unsigned short reg,
int bytes, void *src, bool interface_reg)
{
int i;
if (bytes <= 0) {
pr_err("%s: Error, invalid write length\n", __func__);
return -EINVAL;
}
for (i = 0; i < bytes; i++)
dev_dbg(wcd9xxx->dev, "Write %02x to 0x%x\n", ((u8 *)src)[i],
reg + i);
return wcd9xxx->write_dev(wcd9xxx, reg, bytes, src, interface_reg);
}
static int regmap_slim_multi_reg_write(void *context,
const void *data, size_t count)
{
struct device *dev = context;
struct wcd9xxx *wcd9xxx = dev_get_drvdata(dev);
unsigned int reg;
u8 val[WCD9335_PAGE_SIZE];
int ret = 0;
int i = 0;
int n = 0;
unsigned int page_num;
size_t num_regs = (count / (REG_BYTES + VAL_BYTES));
struct wcd9xxx_reg_val *bulk_reg;
u8 *buf;
if (!wcd9xxx) {
dev_err(dev, "%s: wcd9xxx is NULL\n", __func__);
return -EINVAL;
}
if (!data) {
dev_err(dev, "%s: data is NULL\n", __func__);
return -EINVAL;
}
if (num_regs == 0)
return -EINVAL;
bulk_reg = kzalloc(num_regs * (sizeof(struct wcd9xxx_reg_val)),
GFP_KERNEL);
if (!bulk_reg)
return -ENOMEM;
buf = (u8 *)data;
reg = *(u16 *)buf;
page_num = WCD9XXX_PAGE_NUM(reg);
for (i = 0, n = 0; n < num_regs; i++, n++) {
reg = *(u16 *)buf;
if (page_num != WCD9XXX_PAGE_NUM(reg)) {
ret = wcd9xxx_slim_bulk_write(wcd9xxx, bulk_reg,
i, false);
page_num = WCD9XXX_PAGE_NUM(reg);
i = 0;
}
buf += REG_BYTES;
val[i] = *buf;
buf += VAL_BYTES;
bulk_reg[i].reg = reg;
bulk_reg[i].buf = &val[i];
bulk_reg[i].bytes = 1;
}
ret = wcd9xxx_slim_bulk_write(wcd9xxx, bulk_reg,
i, false);
if (ret)
dev_err(dev, "%s: error writing bulk regs\n",
__func__);
kfree(bulk_reg);
return ret;
}
static int regmap_slim_gather_write(void *context,
const void *reg, size_t reg_size,
const void *val, size_t val_size)
{
struct device *dev = context;
struct wcd9xxx *wcd9xxx = dev_get_drvdata(dev);
unsigned short c_reg, rreg;
int ret, i;
if (!wcd9xxx) {
dev_err(dev, "%s: wcd9xxx is NULL\n", __func__);
return -EINVAL;
}
if (!reg || !val) {
dev_err(dev, "%s: reg or val is NULL\n", __func__);
return -EINVAL;
}
if (reg_size != REG_BYTES) {
dev_err(dev, "%s: register size %zd bytes, not supported\n",
__func__, reg_size);
return -EINVAL;
}
mutex_lock(&wcd9xxx->io_lock);
c_reg = *(u16 *)reg;
rreg = c_reg;
if (is_wcd9xxx_reg_power_down(wcd9xxx, rreg)) {
ret = 0;
goto err;
}
ret = wcd9xxx_page_write(wcd9xxx, &c_reg);
if (ret)
goto err;
for (i = 0; i < val_size; i++)
dev_dbg(dev, "Write %02x to 0x%x\n", ((u8 *)val)[i],
rreg + i);
ret = wcd9xxx->write_dev(wcd9xxx, c_reg, val_size, (void *) val,
false);
if (ret < 0)
dev_err(dev, "%s: Codec write failed (%d)\n", __func__, ret);
err:
mutex_unlock(&wcd9xxx->io_lock);
return ret;
}
static int regmap_slim_write(void *context, const void *data, size_t count)
{
WARN_ON(count < REG_BYTES);
if (count > (REG_BYTES + VAL_BYTES))
return regmap_slim_multi_reg_write(context, data, count);
else
return regmap_slim_gather_write(context, data, REG_BYTES,
data + REG_BYTES,
count - REG_BYTES);
}
static int __wcd9xxx_reg_write(
struct wcd9xxx *wcd9xxx,
unsigned short reg, u8 val)
{
int ret;
if (wcd9xxx->using_regmap)
ret = regmap_write(wcd9xxx->regmap, reg, val);
else {
mutex_lock(&wcd9xxx->io_lock);
ret = wcd9xxx_write(wcd9xxx, reg, 1, &val, false);
mutex_unlock(&wcd9xxx->io_lock);
}
return ret;
}
static int __wcd9xxx_reg_update_bits(struct wcd9xxx *wcd9xxx,
unsigned short reg, u8 mask, u8 val)
{
int ret;
u8 orig, tmp;
if (wcd9xxx->using_regmap)
ret = regmap_update_bits(wcd9xxx->regmap, reg, mask, val);
else {
mutex_lock(&wcd9xxx->io_lock);
ret = wcd9xxx_read(wcd9xxx, reg, 1, &orig, false);
if (ret < 0) {
dev_err(wcd9xxx->dev, "%s: Codec read 0x%x failed\n",
__func__, reg);
goto err;
}
tmp = orig & ~mask;
tmp |= val & mask;
if (tmp != orig)
ret = wcd9xxx_write(wcd9xxx, reg, 1, &tmp, false);
err:
mutex_unlock(&wcd9xxx->io_lock);
}
return ret;
}
int wcd9xxx_reg_update_bits(
struct wcd9xxx_core_resource *core_res,
unsigned short reg, u8 mask, u8 val)
{
struct wcd9xxx *wcd9xxx = (struct wcd9xxx *) core_res->parent;
return __wcd9xxx_reg_update_bits(wcd9xxx, reg, mask, val);
}
EXPORT_SYMBOL(wcd9xxx_reg_update_bits);
int wcd9xxx_reg_write(
struct wcd9xxx_core_resource *core_res,
unsigned short reg, u8 val)
{
struct wcd9xxx *wcd9xxx = (struct wcd9xxx *) core_res->parent;
return __wcd9xxx_reg_write(wcd9xxx, reg, val);
}
EXPORT_SYMBOL(wcd9xxx_reg_write);
static u8 wcd9xxx_pgd_la;
static u8 wcd9xxx_inf_la;
int wcd9xxx_interface_reg_read(struct wcd9xxx *wcd9xxx, unsigned short reg)
{
u8 val;
int ret;
mutex_lock(&wcd9xxx->io_lock);
ret = wcd9xxx_read(wcd9xxx, reg, 1, &val, true);
mutex_unlock(&wcd9xxx->io_lock);
if (ret < 0)
return ret;
else
return val;
}
EXPORT_SYMBOL(wcd9xxx_interface_reg_read);
int wcd9xxx_interface_reg_write(struct wcd9xxx *wcd9xxx, unsigned short reg,
u8 val)
{
int ret;
mutex_lock(&wcd9xxx->io_lock);
ret = wcd9xxx_write(wcd9xxx, reg, 1, &val, true);
mutex_unlock(&wcd9xxx->io_lock);
return ret;
}
EXPORT_SYMBOL(wcd9xxx_interface_reg_write);
static int __wcd9xxx_bulk_read(
struct wcd9xxx *wcd9xxx,
unsigned short reg,
int count, u8 *buf)
{
int ret;
if (wcd9xxx->using_regmap) {
ret = regmap_bulk_read(wcd9xxx->regmap, reg, buf, count);
} else {
mutex_lock(&wcd9xxx->io_lock);
ret = wcd9xxx_read(wcd9xxx, reg, count, buf, false);
mutex_unlock(&wcd9xxx->io_lock);
}
return ret;
}
int wcd9xxx_bulk_read(
struct wcd9xxx_core_resource *core_res,
unsigned short reg,
int count, u8 *buf)
{
struct wcd9xxx *wcd9xxx =
(struct wcd9xxx *) core_res->parent;
return __wcd9xxx_bulk_read(wcd9xxx, reg, count, buf);
}
EXPORT_SYMBOL(wcd9xxx_bulk_read);
static int __wcd9xxx_bulk_write(struct wcd9xxx *wcd9xxx, unsigned short reg,
int count, u8 *buf)
{
int ret;
if (wcd9xxx->using_regmap) {
ret = regmap_bulk_write(wcd9xxx->regmap, reg, buf, count);
} else {
mutex_lock(&wcd9xxx->io_lock);
ret = wcd9xxx_write(wcd9xxx, reg, count, buf, false);
mutex_unlock(&wcd9xxx->io_lock);
}
return ret;
}
int wcd9xxx_bulk_write(
struct wcd9xxx_core_resource *core_res,
unsigned short reg, int count, u8 *buf)
{
struct wcd9xxx *wcd9xxx =
(struct wcd9xxx *) core_res->parent;
return __wcd9xxx_bulk_write(wcd9xxx, reg, count, buf);
}
EXPORT_SYMBOL(wcd9xxx_bulk_write);
/*
* wcd9xxx_get_current_power_state: Get power state of the region
* @wcd9xxx: handle to wcd core
* @region: region index
*
* Returns current power state of the region or error code for failure
*/
int wcd9xxx_get_current_power_state(struct wcd9xxx *wcd9xxx,
enum wcd_power_regions region)
{
int state;
if (!wcd9xxx) {
pr_err("%s: wcd9xxx is NULL\n", __func__);
return -EINVAL;
}
if ((region < 0) || (region >= WCD9XXX_MAX_PWR_REGIONS)) {
dev_err(wcd9xxx->dev, "%s: region index %d out of bounds\n",
__func__, region);
return -EINVAL;
}
if (!wcd9xxx->wcd9xxx_pwr[region]) {
dev_err(wcd9xxx->dev, "%s: memory not created for region: %d\n",
__func__, region);
return -EINVAL;
}
mutex_lock(&wcd9xxx->io_lock);
state = wcd9xxx->wcd9xxx_pwr[region]->power_state;
mutex_unlock(&wcd9xxx->io_lock);
return state;
}
EXPORT_SYMBOL(wcd9xxx_get_current_power_state);
/*
* wcd9xxx_set_power_state: set power state for the region
* @wcd9xxx: handle to wcd core
* @state: power state to be set
* @region: region index
*
* Returns error code in case of failure or 0 for success
*/
int wcd9xxx_set_power_state(struct wcd9xxx *wcd9xxx,
enum codec_power_states state,
enum wcd_power_regions region)
{
if (!wcd9xxx) {
pr_err("%s: wcd9xxx is NULL\n", __func__);
return -EINVAL;
}
if ((region < 0) || (region >= WCD9XXX_MAX_PWR_REGIONS)) {
dev_err(wcd9xxx->dev, "%s: region index %d out of bounds\n",
__func__, region);
return -EINVAL;
}
if (!wcd9xxx->wcd9xxx_pwr[region]) {
dev_err(wcd9xxx->dev, "%s: memory not created for region: %d\n",
__func__, region);
return -EINVAL;
}
mutex_lock(&wcd9xxx->io_lock);
wcd9xxx->wcd9xxx_pwr[region]->power_state = state;
mutex_unlock(&wcd9xxx->io_lock);
return 0;
}
EXPORT_SYMBOL(wcd9xxx_set_power_state);
static int wcd9xxx_slim_read_device(struct wcd9xxx *wcd9xxx, unsigned short reg,
int bytes, void *dest, bool interface)
{
int ret;
struct slim_ele_access msg;
int slim_read_tries = WCD9XXX_SLIM_RW_MAX_TRIES;
msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg;
msg.num_bytes = bytes;
msg.comp = NULL;
if (!wcd9xxx->dev_up) {
dev_dbg_ratelimited(
wcd9xxx->dev, "%s: No read allowed. dev_up = %d\n",
__func__, wcd9xxx->dev_up);
return 0;
}
while (1) {
mutex_lock(&wcd9xxx->xfer_lock);
ret = slim_request_val_element(interface ?
wcd9xxx->slim_slave : wcd9xxx->slim,
&msg, dest, bytes);
mutex_unlock(&wcd9xxx->xfer_lock);
if (likely(ret == 0) || (--slim_read_tries == 0))
break;
usleep_range(5000, 5100);
}
if (ret)
pr_err("%s: Error, Codec read failed (%d)\n", __func__, ret);
return ret;
}
static int wcd9xxx_slim_get_allowed_slice(struct wcd9xxx *wcd9xxx,
int bytes)
{
int allowed_sz = bytes;
if (likely(bytes == SLIM_REPEAT_WRITE_MAX_SLICE))
allowed_sz = 16;
else if (bytes >= 12)
allowed_sz = 12;
else if (bytes >= 8)
allowed_sz = 8;
else if (bytes >= 6)
allowed_sz = 6;
else if (bytes >= 4)
allowed_sz = 4;
else
allowed_sz = bytes;
return allowed_sz;
}
static int __wcd9xxx_slim_write_repeat(struct wcd9xxx *wcd9xxx,
unsigned short reg,
int bytes, void *src)
{
int ret = 0, bytes_to_write = bytes, bytes_allowed;
struct slim_ele_access slim_msg;
slim_msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg;
slim_msg.comp = NULL;
if (unlikely(bytes > SLIM_REPEAT_WRITE_MAX_SLICE)) {
dev_err(wcd9xxx->dev, "%s: size %d not supported\n",
__func__, bytes);
return -EINVAL;
}
if (!wcd9xxx->dev_up) {
dev_dbg_ratelimited(
wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n",
__func__, wcd9xxx->dev_up);
return 0;
}
while (bytes_to_write > 0) {
bytes_allowed = wcd9xxx_slim_get_allowed_slice(wcd9xxx,
bytes_to_write);
slim_msg.num_bytes = bytes_allowed;
mutex_lock(&wcd9xxx->xfer_lock);
ret = slim_user_msg(wcd9xxx->slim, wcd9xxx->slim->laddr,
SLIM_MSG_MT_DEST_REFERRED_USER,
SLIM_USR_MC_REPEAT_CHANGE_VALUE,
&slim_msg, src, bytes_allowed);
mutex_unlock(&wcd9xxx->xfer_lock);
if (ret) {
dev_err(wcd9xxx->dev, "%s: failed, ret = %d\n",
__func__, ret);
break;
}
bytes_to_write = bytes_to_write - bytes_allowed;
src = ((u8 *)src) + bytes_allowed;
};
return ret;
}
/*
* wcd9xxx_slim_write_repeat: Write the same register with multiple values
* @wcd9xxx: handle to wcd core
* @reg: register to be written
* @bytes: number of bytes to be written to reg
* @src: buffer with data content to be written to reg
* This API will write reg with bytes from src in a single slimbus
* transaction. All values from 1 to 16 are supported by this API.
*/
int wcd9xxx_slim_write_repeat(struct wcd9xxx *wcd9xxx, unsigned short reg,
int bytes, void *src)
{
int ret = 0;
mutex_lock(&wcd9xxx->io_lock);
if (wcd9xxx->type == WCD9335) {
ret = wcd9xxx_page_write(wcd9xxx, &reg);
if (ret)
goto err;
ret = __wcd9xxx_slim_write_repeat(wcd9xxx, reg, bytes, src);
if (ret < 0)
dev_err(wcd9xxx->dev,
"%s: Codec repeat write failed (%d)\n",
__func__, ret);
} else {
ret = __wcd9xxx_slim_write_repeat(wcd9xxx, reg, bytes, src);
}
err:
mutex_unlock(&wcd9xxx->io_lock);
return ret;
}
EXPORT_SYMBOL(wcd9xxx_slim_write_repeat);
/*
* wcd9xxx_slim_reserve_bw: API to reserve the slimbus bandwidth
* @wcd9xxx: Handle to the wcd9xxx core
* @bw_ops: value of the bandwidth that is requested
* @commit: Flag to indicate if bandwidth change is to be commited
* right away
*/
int wcd9xxx_slim_reserve_bw(struct wcd9xxx *wcd9xxx,
u32 bw_ops, bool commit)
{
if (!wcd9xxx || !wcd9xxx->slim) {
pr_err("%s: Invalid handle to %s\n",
__func__,
(!wcd9xxx) ? "wcd9xxx" : "slim_device");
return -EINVAL;
}
return slim_reservemsg_bw(wcd9xxx->slim, bw_ops, commit);
}
EXPORT_SYMBOL(wcd9xxx_slim_reserve_bw);
/* Interface specifies whether the write is to the interface or general
* registers.
*/
static int wcd9xxx_slim_write_device(struct wcd9xxx *wcd9xxx,
unsigned short reg, int bytes, void *src, bool interface)
{
int ret;
struct slim_ele_access msg;
int slim_write_tries = WCD9XXX_SLIM_RW_MAX_TRIES;
msg.start_offset = WCD9XXX_REGISTER_START_OFFSET + reg;
msg.num_bytes = bytes;
msg.comp = NULL;
if (!wcd9xxx->dev_up) {
dev_dbg_ratelimited(
wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n",
__func__, wcd9xxx->dev_up);
return 0;
}
while (1) {
mutex_lock(&wcd9xxx->xfer_lock);
ret = slim_change_val_element(interface ?
wcd9xxx->slim_slave : wcd9xxx->slim,
&msg, src, bytes);
mutex_unlock(&wcd9xxx->xfer_lock);
if (likely(ret == 0) || (--slim_write_tries == 0))
break;
usleep_range(5000, 5100);
}
if (ret)
pr_err("%s: Error, Codec write failed (%d)\n", __func__, ret);
return ret;
}
/*
* wcd9xxx_slim_bulk_write: API to write multiple registers with one descriptor
* @wcd9xxx: Handle to the wcd9xxx core
* @wcd9xxx_reg_val: structure holding register and values to be written
* @size: Indicates number of messages to be written with one descriptor
* @interface: Indicates whether the register is for slim interface or for
* general registers.
* @return: returns 0 if success or error information to the caller in case
* of failure.
*/
int wcd9xxx_slim_bulk_write(struct wcd9xxx *wcd9xxx,
struct wcd9xxx_reg_val *bulk_reg,
unsigned int size, bool interface)
{
int ret, i;
struct slim_val_inf *msgs;
unsigned short reg;
if (!bulk_reg || !size || !wcd9xxx) {
pr_err("%s: Invalid parameters\n", __func__);
return -EINVAL;
}
if (!wcd9xxx->dev_up) {
dev_dbg_ratelimited(
wcd9xxx->dev, "%s: No write allowed. dev_up = %d\n",
__func__, wcd9xxx->dev_up);
return 0;
}
msgs = kzalloc(size * (sizeof(struct slim_val_inf)), GFP_KERNEL);
if (!msgs) {
ret = -ENOMEM;
goto mem_fail;
}
mutex_lock(&wcd9xxx->io_lock);
reg = bulk_reg->reg;
for (i = 0; i < size; i++) {
msgs[i].start_offset = WCD9XXX_REGISTER_START_OFFSET +
(bulk_reg->reg & 0xFF);
msgs[i].num_bytes = bulk_reg->bytes;
msgs[i].wbuf = bulk_reg->buf;
bulk_reg++;
}
ret = wcd9xxx_page_write(wcd9xxx, &reg);
if (ret) {
pr_err("%s: Page write error for reg: 0x%x\n",
__func__, reg);
goto err;
}
ret = slim_bulk_msg_write(interface ?
wcd9xxx->slim_slave : wcd9xxx->slim,
SLIM_MSG_MT_CORE,
SLIM_MSG_MC_CHANGE_VALUE, msgs, size,
NULL, NULL);
if (ret)
pr_err("%s: Error, Codec bulk write failed (%d)\n",
__func__, ret);
/* 100 usec sleep is needed as per HW requirement */
usleep_range(100, 110);
err:
mutex_unlock(&wcd9xxx->io_lock);
kfree(msgs);
mem_fail:
return ret;
}
EXPORT_SYMBOL(wcd9xxx_slim_bulk_write);
static struct mfd_cell tabla1x_devs[] = {
{
.name = "tabla1x_codec",
},
};
static struct mfd_cell tabla_devs[] = {
{
.name = "tabla_codec",
},
};
static struct mfd_cell sitar_devs[] = {
{
.name = "sitar_codec",
},
};
static struct mfd_cell taiko_devs[] = {
{
.name = "taiko_codec",
},
};
static struct mfd_cell tapan_devs[] = {
{
.name = "tapan_codec",
},
};
static struct mfd_cell tomtom_devs[] = {
{
.name = "tomtom_codec",
},
};
static struct mfd_cell tasha_devs[] = {
{
.name = "tasha_codec",
},
};
static const struct wcd9xxx_codec_type wcd9xxx_codecs[] = {
{
TABLA_MAJOR, cpu_to_le16(0x1), tabla1x_devs,
ARRAY_SIZE(tabla1x_devs), TABLA_NUM_IRQS, -1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x03,
},
{
TABLA_MAJOR, cpu_to_le16(0x2), tabla_devs,
ARRAY_SIZE(tabla_devs), TABLA_NUM_IRQS, -1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x03
},
{
/* Siter version 1 has same major chip id with Tabla */
TABLA_MAJOR, cpu_to_le16(0x0), sitar_devs,
ARRAY_SIZE(sitar_devs), SITAR_NUM_IRQS, -1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x01
},
{
SITAR_MAJOR, cpu_to_le16(0x1), sitar_devs,
ARRAY_SIZE(sitar_devs), SITAR_NUM_IRQS, -1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x01
},
{
SITAR_MAJOR, cpu_to_le16(0x2), sitar_devs,
ARRAY_SIZE(sitar_devs), SITAR_NUM_IRQS, -1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TABLA, 0x01
},
{
TAIKO_MAJOR, cpu_to_le16(0x0), taiko_devs,
ARRAY_SIZE(taiko_devs), TAIKO_NUM_IRQS, 1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01
},
{
TAIKO_MAJOR, cpu_to_le16(0x1), taiko_devs,
ARRAY_SIZE(taiko_devs), TAIKO_NUM_IRQS, 2,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01
},
{
TAPAN_MAJOR, cpu_to_le16(0x0), tapan_devs,
ARRAY_SIZE(tapan_devs), TAPAN_NUM_IRQS, -1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x03
},
{
TAPAN_MAJOR, cpu_to_le16(0x1), tapan_devs,
ARRAY_SIZE(tapan_devs), TAPAN_NUM_IRQS, -1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x03
},
{
TOMTOM_MAJOR, cpu_to_le16(0x0), tomtom_devs,
ARRAY_SIZE(tomtom_devs), TOMTOM_NUM_IRQS, 1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01
},
{
TOMTOM_MAJOR, cpu_to_le16(0x1), tomtom_devs,
ARRAY_SIZE(tomtom_devs), TOMTOM_NUM_IRQS, 2,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01
},
{
TASHA_MAJOR, cpu_to_le16(0x0), tasha_devs,
ARRAY_SIZE(tasha_devs), TASHA_NUM_IRQS, -1,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01
},
{
TASHA2P0_MAJOR, cpu_to_le16(0x1), tasha_devs,
ARRAY_SIZE(tasha_devs), TASHA_NUM_IRQS, 2,
WCD9XXX_SLIM_SLAVE_ADDR_TYPE_TAIKO, 0x01
},
};
static int wcd9335_bring_up(struct wcd9xxx *wcd9xxx)
{
int val, byte0;
int ret = 0;
val = __wcd9xxx_reg_read(wcd9xxx,
WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT0);
byte0 = __wcd9xxx_reg_read(wcd9xxx,
WCD9335_CHIP_TIER_CTRL_CHIP_ID_BYTE0);
if ((val < 0) || (byte0 < 0)) {
dev_err(wcd9xxx->dev, "%s: tasha codec version detection fail!\n",
__func__);
return -EINVAL;
}
if ((val & 0x80) && (byte0 == 0x0)) {
dev_info(wcd9xxx->dev, "%s: wcd9335 codec version is v1.1\n",
__func__);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x01);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_2, 0xFC);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_4, 0x21);
__wcd9xxx_reg_write(wcd9xxx,
WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x5);
__wcd9xxx_reg_write(wcd9xxx,
WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x7);
__wcd9xxx_reg_write(wcd9xxx,
WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x3);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x3);
} else if (byte0 == 0x1) {
dev_info(wcd9xxx->dev, "%s: wcd9335 codec version is v2.0\n",
__func__);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x01);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_TEST_2, 0x00);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_8, 0x6F);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_BIAS_VBG_FINE_ADJ, 0x65);
__wcd9xxx_reg_write(wcd9xxx,
WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x5);
__wcd9xxx_reg_write(wcd9xxx,
WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x7);
__wcd9xxx_reg_write(wcd9xxx,
WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x3);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x3);
} else if ((byte0 == 0) && (!(val & 0x80))) {
dev_info(wcd9xxx->dev, "%s: wcd9335 codec version is v1.0\n",
__func__);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x01);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_2, 0xFC);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_SIDO_SIDO_CCL_4, 0x21);
__wcd9xxx_reg_write(wcd9xxx,
WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x3);
__wcd9xxx_reg_write(wcd9xxx, WCD9335_CODEC_RPM_RST_CTL, 0x3);
} else {
dev_err(wcd9xxx->dev, "%s: tasha codec version unknown\n",
__func__);
ret = -EINVAL;
}
return ret;
}
static void wcd9335_bring_down(struct wcd9xxx *wcd9xxx)
{
__wcd9xxx_reg_write(wcd9xxx,
WCD9335_CODEC_RPM_PWR_CDC_DIG_HM_CTL, 0x4);
}
static int wcd9xxx_bring_up(struct wcd9xxx *wcd9xxx)
{
int ret = 0;
pr_debug("%s: Codec Type: %d\n", __func__, wcd9xxx->type);
if (wcd9xxx->type == WCD9335) {
ret = wcd9335_bring_up(wcd9xxx);
} else if (wcd9xxx->type == WCD9330) {
__wcd9xxx_reg_write(wcd9xxx, WCD9330_A_LEAKAGE_CTL, 0x4);
__wcd9xxx_reg_write(wcd9xxx, WCD9330_A_CDC_CTL, 0);
/* wait for 5ms after codec reset for it to complete */
usleep_range(5000, 5100);
__wcd9xxx_reg_write(wcd9xxx, WCD9330_A_CDC_CTL, 0x1);
__wcd9xxx_reg_write(wcd9xxx, WCD9330_A_LEAKAGE_CTL, 0x3);
__wcd9xxx_reg_write(wcd9xxx, WCD9330_A_CDC_CTL, 0x3);
} else {
__wcd9xxx_reg_write(wcd9xxx, WCD9XXX_A_LEAKAGE_CTL, 0x4);
__wcd9xxx_reg_write(wcd9xxx, WCD9XXX_A_CDC_CTL, 0);
usleep_range(5000, 5100);
__wcd9xxx_reg_write(wcd9xxx, WCD9XXX_A_CDC_CTL, 3);
__wcd9xxx_reg_write(wcd9xxx, WCD9XXX_A_LEAKAGE_CTL, 3);
}
return ret;
}
static void wcd9xxx_bring_down(struct wcd9xxx *wcd9xxx)
{
unsigned short reg;
if (wcd9xxx->type == WCD9335) {
wcd9335_bring_down(wcd9xxx);
return;
} else if (wcd9xxx->type == WCD9330) {
reg = WCD9330_A_LEAKAGE_CTL;
} else
reg = WCD9XXX_A_LEAKAGE_CTL;
__wcd9xxx_reg_write(wcd9xxx, reg, 0x7);
__wcd9xxx_reg_write(wcd9xxx, reg, 0x6);
__wcd9xxx_reg_write(wcd9xxx, reg, 0xe);
__wcd9xxx_reg_write(wcd9xxx, reg, 0x8);
}
static int wcd9xxx_reset(struct wcd9xxx *wcd9xxx)
{
int ret;
struct wcd9xxx_pdata *pdata = wcd9xxx->dev->platform_data;
if (wcd9xxx->wcd_rst_np) {
/* use pinctrl and call into wcd-rst-gpio driver */
ret = wcd_gpio_ctrl_select_sleep_state(wcd9xxx->wcd_rst_np);
if (ret) {
pr_err("%s: wcd sleep pinctrl state fail!\n",
__func__);
return ret;
}
/* 20ms sleep required after pulling the reset gpio to LOW */
msleep(20);
ret = wcd_gpio_ctrl_select_active_state(wcd9xxx->wcd_rst_np);
if (ret) {
pr_err("%s: wcd active pinctrl state fail!\n",
__func__);
return ret;
}
/* 20ms sleep required after pulling the reset gpio to HIGH */
msleep(20);
return 0;
}
if (wcd9xxx->reset_gpio && wcd9xxx->dev_up
&& !pdata->use_pinctrl) {
ret = gpio_request(wcd9xxx->reset_gpio, "CDC_RESET");
if (ret) {
pr_err("%s: Failed to request gpio %d\n", __func__,
wcd9xxx->reset_gpio);
wcd9xxx->reset_gpio = 0;
return ret;
}
}
if (wcd9xxx->reset_gpio) {
if (pdata->use_pinctrl) {
/* Reset the CDC PDM TLMM pins to a default state */
ret = pinctrl_select_state(pinctrl_info.pinctrl,
pinctrl_info.extncodec_sus);
if (ret != 0) {
pr_err("%s: Failed to suspend reset pins, ret: %d\n",
__func__, ret);
return ret;
}
msleep(20);
ret = pinctrl_select_state(pinctrl_info.pinctrl,
pinctrl_info.extncodec_act);
if (ret != 0) {
pr_err("%s: Failed to enable gpio pins; ret=%d\n",
__func__, ret);
return ret;
}
msleep(20);
} else {
gpio_direction_output(wcd9xxx->reset_gpio, 0);
msleep(20);
gpio_direction_output(wcd9xxx->reset_gpio, 1);
msleep(20);
}
}
return 0;
}
static void wcd9xxx_free_reset(struct wcd9xxx *wcd9xxx)
{
struct wcd9xxx_pdata *pdata = wcd9xxx->dev->platform_data;
if (wcd9xxx->wcd_rst_np) {
wcd_gpio_ctrl_select_sleep_state(wcd9xxx->wcd_rst_np);
return;
}
if (wcd9xxx->reset_gpio) {
if (!pdata->use_pinctrl) {
gpio_free(wcd9xxx->reset_gpio);
wcd9xxx->reset_gpio = 0;
} else
pinctrl_put(pinctrl_info.pinctrl);
}
}
static void wcd9xxx_chip_version_ctrl_reg(struct wcd9xxx *wcd9xxx,
unsigned int *byte_0,
unsigned int *byte_1,
unsigned int *byte_2)
{
switch (wcd9xxx->type) {
case WCD9335:
*byte_0 = WCD9335_CHIP_TIER_CTRL_CHIP_ID_BYTE0;
*byte_1 = WCD9335_CHIP_TIER_CTRL_CHIP_ID_BYTE1;
*byte_2 = WCD9335_CHIP_TIER_CTRL_CHIP_ID_BYTE2;
break;
case WCD9330:
case WCD9XXX:
default:
*byte_0 = WCD9XXX_A_CHIP_ID_BYTE_0;
*byte_1 = WCD9XXX_A_CHIP_ID_BYTE_1;
*byte_2 = WCD9XXX_A_CHIP_ID_BYTE_2;
break;
}
return;
}
static const struct wcd9xxx_codec_type
*wcd9xxx_check_codec_type(struct wcd9xxx *wcd9xxx, u8 *version)
{
int i, rc;
const struct wcd9xxx_codec_type *c, *d = NULL;
unsigned int byte_0, byte_1, byte_2;
wcd9xxx_chip_version_ctrl_reg(wcd9xxx, &byte_0, &byte_1, &byte_2);
rc = __wcd9xxx_bulk_read(wcd9xxx, byte_0,
sizeof(wcd9xxx->id_minor),
(u8 *)&wcd9xxx->id_minor);
if (rc < 0)
goto exit;
rc = __wcd9xxx_bulk_read(wcd9xxx, byte_2,
sizeof(wcd9xxx->id_major),
(u8 *)&wcd9xxx->id_major);
if (rc < 0)
goto exit;
dev_dbg(wcd9xxx->dev, "%s: wcd9xxx chip id major 0x%x, minor 0x%x\n",
__func__, wcd9xxx->id_major, wcd9xxx->id_minor);
for (i = 0, c = &wcd9xxx_codecs[0]; i < ARRAY_SIZE(wcd9xxx_codecs);
i++, c++) {
if (c->id_major == wcd9xxx->id_major) {
if (c->id_minor == wcd9xxx->id_minor) {
d = c;
dev_dbg(wcd9xxx->dev,
"%s: exact match %s\n", __func__,
d->dev->name);
break;
} else if (!d) {
d = c;
} else {
if ((d->id_minor < c->id_minor) ||
(d->id_minor == c->id_minor &&
d->version < c->version))
d = c;
}
dev_dbg(wcd9xxx->dev,
"%s: best match %s, major 0x%x, minor 0x%x\n",
__func__, d->dev->name, d->id_major,
d->id_minor);
}
}
if (!d) {
dev_warn(wcd9xxx->dev,
"%s: driver for id major 0x%x, minor 0x%x not found\n",
__func__, wcd9xxx->id_major, wcd9xxx->id_minor);
} else {
if (d->version > -1) {
*version = d->version;
} else if (d->id_major == TASHA_MAJOR) {
rc = __wcd9xxx_reg_read(wcd9xxx,
WCD9335_CHIP_TIER_CTRL_EFUSE_VAL_OUT0);
if (rc < 0) {
d = NULL;
goto exit;
}
*version = ((u8)rc & 0x80) >> 7;
} else {
rc = __wcd9xxx_reg_read(wcd9xxx,
WCD9XXX_A_CHIP_VERSION);
if (rc < 0) {
d = NULL;
goto exit;
}
*version = (u8)rc & 0x1F;
}
dev_info(wcd9xxx->dev,
"%s: detected %s, major 0x%x, minor 0x%x, ver 0x%x\n",
__func__, d->dev->name, d->id_major, d->id_minor,
*version);
}
exit:
return d;
}
static int wcd9xxx_num_irq_regs(const struct wcd9xxx *wcd9xxx)
{
return (wcd9xxx->codec_type->num_irqs / 8) +
((wcd9xxx->codec_type->num_irqs % 8) ? 1 : 0);
}
/*
* Interrupt table for v1 corresponds to newer version
* codecs (wcd9304 and wcd9310)
*/
static const struct intr_data intr_tbl_v1[] = {
{WCD9XXX_IRQ_SLIMBUS, false},
{WCD9XXX_IRQ_MBHC_INSERTION, true},
{WCD9XXX_IRQ_MBHC_POTENTIAL, true},
{WCD9XXX_IRQ_MBHC_RELEASE, true},
{WCD9XXX_IRQ_MBHC_PRESS, true},
{WCD9XXX_IRQ_MBHC_SHORT_TERM, true},
{WCD9XXX_IRQ_MBHC_REMOVAL, true},
{WCD9XXX_IRQ_BG_PRECHARGE, false},
{WCD9XXX_IRQ_PA1_STARTUP, false},
{WCD9XXX_IRQ_PA2_STARTUP, false},
{WCD9XXX_IRQ_PA3_STARTUP, false},
{WCD9XXX_IRQ_PA4_STARTUP, false},
{WCD9XXX_IRQ_PA5_STARTUP, false},
{WCD9XXX_IRQ_MICBIAS1_PRECHARGE, false},
{WCD9XXX_IRQ_MICBIAS2_PRECHARGE, false},
{WCD9XXX_IRQ_MICBIAS3_PRECHARGE, false},
{WCD9XXX_IRQ_HPH_PA_OCPL_FAULT, false},
{WCD9XXX_IRQ_HPH_PA_OCPR_FAULT, false},
{WCD9XXX_IRQ_EAR_PA_OCPL_FAULT, false},
{WCD9XXX_IRQ_HPH_L_PA_STARTUP, false},
{WCD9XXX_IRQ_HPH_R_PA_STARTUP, false},
{WCD9320_IRQ_EAR_PA_STARTUP, false},
{WCD9XXX_IRQ_RESERVED_0, false},
{WCD9XXX_IRQ_RESERVED_1, false},
};
/*
* Interrupt table for v2 corresponds to newer version
* codecs (wcd9320 and wcd9306)
*/
static const struct intr_data intr_tbl_v2[] = {
{WCD9XXX_IRQ_SLIMBUS, false},
{WCD9XXX_IRQ_MBHC_INSERTION, true},
{WCD9XXX_IRQ_MBHC_POTENTIAL, true},
{WCD9XXX_IRQ_MBHC_RELEASE, true},
{WCD9XXX_IRQ_MBHC_PRESS, true},
{WCD9XXX_IRQ_MBHC_SHORT_TERM, true},
{WCD9XXX_IRQ_MBHC_REMOVAL, true},
{WCD9320_IRQ_MBHC_JACK_SWITCH, true},
{WCD9306_IRQ_MBHC_JACK_SWITCH, true},
{WCD9XXX_IRQ_BG_PRECHARGE, false},
{WCD9XXX_IRQ_PA1_STARTUP, false},
{WCD9XXX_IRQ_PA2_STARTUP, false},
{WCD9XXX_IRQ_PA3_STARTUP, false},
{WCD9XXX_IRQ_PA4_STARTUP, false},
{WCD9306_IRQ_HPH_PA_OCPR_FAULT, false},
{WCD9XXX_IRQ_PA5_STARTUP, false},
{WCD9XXX_IRQ_MICBIAS1_PRECHARGE, false},
{WCD9306_IRQ_HPH_PA_OCPL_FAULT, false},
{WCD9XXX_IRQ_MICBIAS2_PRECHARGE, false},
{WCD9XXX_IRQ_MICBIAS3_PRECHARGE, false},
{WCD9XXX_IRQ_HPH_PA_OCPL_FAULT, false},
{WCD9XXX_IRQ_HPH_PA_OCPR_FAULT, false},
{WCD9XXX_IRQ_EAR_PA_OCPL_FAULT, false},
{WCD9XXX_IRQ_HPH_L_PA_STARTUP, false},
{WCD9XXX_IRQ_HPH_R_PA_STARTUP, false},
{WCD9XXX_IRQ_RESERVED_0, false},
{WCD9XXX_IRQ_RESERVED_1, false},
{WCD9XXX_IRQ_MAD_AUDIO, false},
{WCD9XXX_IRQ_MAD_BEACON, false},
{WCD9XXX_IRQ_MAD_ULTRASOUND, false},
{WCD9XXX_IRQ_SPEAKER_CLIPPING, false},
{WCD9XXX_IRQ_VBAT_MONITOR_ATTACK, false},
{WCD9XXX_IRQ_VBAT_MONITOR_RELEASE, false},
};
/*
* Interrupt table for v3 corresponds to newer version
* codecs (wcd9330)
*/
static const struct intr_data intr_tbl_v3[] = {
{WCD9XXX_IRQ_SLIMBUS, false},
{WCD9XXX_IRQ_MBHC_INSERTION, true},
{WCD9XXX_IRQ_MBHC_POTENTIAL, true},
{WCD9XXX_IRQ_MBHC_RELEASE, true},
{WCD9XXX_IRQ_MBHC_PRESS, true},
{WCD9XXX_IRQ_MBHC_SHORT_TERM, true},
{WCD9XXX_IRQ_MBHC_REMOVAL, true},
{WCD9330_IRQ_MBHC_JACK_SWITCH, true},
{WCD9XXX_IRQ_BG_PRECHARGE, false},
{WCD9XXX_IRQ_PA1_STARTUP, false},
{WCD9XXX_IRQ_PA2_STARTUP, false},
{WCD9XXX_IRQ_PA3_STARTUP, false},
{WCD9XXX_IRQ_PA4_STARTUP, false},
{WCD9XXX_IRQ_PA5_STARTUP, false},
{WCD9XXX_IRQ_MICBIAS1_PRECHARGE, false},
{WCD9XXX_IRQ_MICBIAS2_PRECHARGE, false},
{WCD9XXX_IRQ_MICBIAS3_PRECHARGE, false},
{WCD9XXX_IRQ_HPH_PA_OCPL_FAULT, false},
{WCD9XXX_IRQ_HPH_PA_OCPR_FAULT, false},
{WCD9XXX_IRQ_EAR_PA_OCPL_FAULT, false},
{WCD9XXX_IRQ_HPH_L_PA_STARTUP, false},
{WCD9XXX_IRQ_HPH_R_PA_STARTUP, false},
{WCD9320_IRQ_EAR_PA_STARTUP, false},
{WCD9330_IRQ_SVASS_ERR_EXCEPTION, false},
{WCD9330_IRQ_SVASS_ENGINE, true},
{WCD9330_IRQ_MAD_AUDIO, false},
{WCD9330_IRQ_MAD_BEACON, false},
{WCD9330_IRQ_MAD_ULTRASOUND, false},
{WCD9330_IRQ_SPEAKER1_CLIPPING, false},
{WCD9330_IRQ_SPEAKER2_CLIPPING, false},
{WCD9330_IRQ_VBAT_MONITOR_ATTACK, false},
{WCD9330_IRQ_VBAT_MONITOR_RELEASE, false},
};
/*
* Interrupt table for v4 corresponds to newer version
* codecs (wcd9335)
*/
static const struct intr_data intr_tbl_v4[] = {
{WCD9XXX_IRQ_SLIMBUS, false},
{WCD9335_IRQ_MBHC_SW_DET, true},
{WCD9335_IRQ_MBHC_BUTTON_PRESS_DET, true},
{WCD9335_IRQ_MBHC_BUTTON_RELEASE_DET, true},
{WCD9335_IRQ_MBHC_ELECT_INS_REM_DET, true},
{WCD9335_IRQ_MBHC_ELECT_INS_REM_LEG_DET, true},
{WCD9335_IRQ_FLL_LOCK_LOSS, false},
{WCD9335_IRQ_HPH_PA_CNPL_COMPLETE, false},
{WCD9335_IRQ_HPH_PA_CNPR_COMPLETE, false},
{WCD9335_IRQ_EAR_PA_CNP_COMPLETE, false},
{WCD9335_IRQ_LINE_PA1_CNP_COMPLETE, false},
{WCD9335_IRQ_LINE_PA2_CNP_COMPLETE, false},
{WCD9335_IRQ_LINE_PA3_CNP_COMPLETE, false},
{WCD9335_IRQ_LINE_PA4_CNP_COMPLETE, false},
{WCD9335_IRQ_HPH_PA_OCPL_FAULT, false},
{WCD9335_IRQ_HPH_PA_OCPR_FAULT, false},
{WCD9335_IRQ_EAR_PA_OCP_FAULT, false},
{WCD9335_IRQ_SOUNDWIRE, false},
{WCD9335_IRQ_VDD_DIG_RAMP_COMPLETE, false},
{WCD9335_IRQ_RCO_ERROR, false},
{WCD9335_IRQ_SVA_ERROR, false},
{WCD9335_IRQ_MAD_AUDIO, false},
{WCD9335_IRQ_MAD_BEACON, false},
{WCD9335_IRQ_SVA_OUTBOX1, true},
{WCD9335_IRQ_SVA_OUTBOX2, true},
{WCD9335_IRQ_MAD_ULTRASOUND, false},
{WCD9335_IRQ_VBAT_ATTACK, false},
{WCD9335_IRQ_VBAT_RESTORE, false},
};
static int wcd9xxx_regmap_init_cache(struct wcd9xxx *wcd9xxx)
{
struct regmap_config *regmap_config;
int rc;
regmap_config = wcd9xxx_get_regmap_config(wcd9xxx->type);
if (!regmap_config) {
dev_err(wcd9xxx->dev, "regmap config is not defined\n");
return -EINVAL;
}
rc = regmap_reinit_cache(wcd9xxx->regmap, regmap_config);
if (rc != 0) {
dev_err(wcd9xxx->dev, "%s:Failed to reinit register cache: %d\n",
__func__, rc);
}
return rc;
}
static void wcd9xxx_core_res_update_irq_regs(
struct wcd9xxx_core_resource *core_res,
u16 id_major)
{
switch (id_major) {
case TASHA_MAJOR:
case TASHA2P0_MAJOR:
core_res->intr_reg[WCD9XXX_INTR_STATUS_BASE] =
WCD9335_INTR_PIN1_STATUS0;
core_res->intr_reg[WCD9XXX_INTR_CLEAR_BASE] =
WCD9335_INTR_PIN1_CLEAR0;
core_res->intr_reg[WCD9XXX_INTR_MASK_BASE] =
WCD9335_INTR_PIN1_MASK0;
core_res->intr_reg[WCD9XXX_INTR_LEVEL_BASE] =
WCD9335_INTR_LEVEL0;
core_res->intr_reg[WCD9XXX_INTR_CLR_COMMIT] =
WCD9335_INTR_CLR_COMMIT;
break;
case TABLA_MAJOR:
case TOMTOM_MAJOR:
case TAIKO_MAJOR:
default:
core_res->intr_reg[WCD9XXX_INTR_STATUS_BASE] =
WCD9XXX_A_INTR_STATUS0;
core_res->intr_reg[WCD9XXX_INTR_CLEAR_BASE] =
WCD9XXX_A_INTR_CLEAR0;
core_res->intr_reg[WCD9XXX_INTR_MASK_BASE] =
WCD9XXX_A_INTR_MASK0;
core_res->intr_reg[WCD9XXX_INTR_LEVEL_BASE] =
WCD9XXX_A_INTR_LEVEL0;
core_res->intr_reg[WCD9XXX_INTR_CLR_COMMIT] =
WCD9XXX_A_INTR_MODE;
break;
};
}
static int wcd9xxx_device_init(struct wcd9xxx *wcd9xxx)
{
int ret = 0;
u8 version;
const struct wcd9xxx_codec_type *found;
struct wcd9xxx_core_resource *core_res = &wcd9xxx->core_res;
regmap_patch_fptr regmap_apply_patch = NULL;
mutex_init(&wcd9xxx->io_lock);
mutex_init(&wcd9xxx->xfer_lock);
dev_set_drvdata(wcd9xxx->dev, wcd9xxx);
ret = wcd9xxx_bring_up(wcd9xxx);
if (ret) {
ret = -EPROBE_DEFER;
goto err_bring_up;
}
found = wcd9xxx_check_codec_type(wcd9xxx, &version);
if (!found) {
ret = -ENODEV;
goto err;
} else {
wcd9xxx->codec_type = found;
wcd9xxx->version = version;
}
core_res->parent = wcd9xxx;
core_res->dev = wcd9xxx->dev;
if (wcd9xxx->codec_type->id_major == TABLA_MAJOR
|| wcd9xxx->codec_type->id_major == SITAR_MAJOR) {
core_res->intr_table = intr_tbl_v1;
core_res->intr_table_size = ARRAY_SIZE(intr_tbl_v1);
} else if (wcd9xxx->codec_type->id_major == TOMTOM_MAJOR) {
core_res->intr_table = intr_tbl_v3;
core_res->intr_table_size = ARRAY_SIZE(intr_tbl_v3);
} else if ((wcd9xxx->codec_type->id_major == TASHA_MAJOR) ||
(wcd9xxx->codec_type->id_major == TASHA2P0_MAJOR)) {
core_res->intr_table = intr_tbl_v4;
core_res->intr_table_size = ARRAY_SIZE(intr_tbl_v4);
} else {
core_res->intr_table = intr_tbl_v2;
core_res->intr_table_size = ARRAY_SIZE(intr_tbl_v2);
}
wcd9xxx_core_res_update_irq_regs(&wcd9xxx->core_res,
wcd9xxx->codec_type->id_major);
wcd9xxx_core_res_init(&wcd9xxx->core_res,
wcd9xxx->codec_type->num_irqs,
wcd9xxx_num_irq_regs(wcd9xxx),
wcd9xxx_reg_read, wcd9xxx_reg_write,
wcd9xxx_bulk_read, wcd9xxx_bulk_write);
if (wcd9xxx_core_irq_init(&wcd9xxx->core_res))
goto err;
/* If codec uses regmap, initialize regmap register cache */
if (wcd9xxx->using_regmap) {
ret = wcd9xxx_regmap_init_cache(wcd9xxx);
if (ret)
goto err_irq;
regmap_apply_patch = wcd9xxx_get_regmap_reg_patch(
wcd9xxx->type);
if (regmap_apply_patch) {
ret = regmap_apply_patch(wcd9xxx->regmap,
wcd9xxx->version);
if (ret)
dev_err(wcd9xxx->dev,
"Failed to register patch: %d\n", ret);
}
}
ret = mfd_add_devices(wcd9xxx->dev, -1, found->dev, found->size,
NULL, 0, NULL);
if (ret != 0) {
dev_err(wcd9xxx->dev, "Failed to add children: %d\n", ret);
goto err_irq;
}
ret = device_init_wakeup(wcd9xxx->dev, true);
if (ret) {
dev_err(wcd9xxx->dev, "Device wakeup init failed: %d\n", ret);
goto err_irq;
}
return ret;
err_irq:
wcd9xxx_irq_exit(&wcd9xxx->core_res);
err:
wcd9xxx_bring_down(wcd9xxx);
wcd9xxx_core_res_deinit(&wcd9xxx->core_res);
err_bring_up:
mutex_destroy(&wcd9xxx->io_lock);
mutex_destroy(&wcd9xxx->xfer_lock);
return ret;
}
static void wcd9xxx_device_exit(struct wcd9xxx *wcd9xxx)
{
device_init_wakeup(wcd9xxx->dev, false);
wcd9xxx_irq_exit(&wcd9xxx->core_res);
wcd9xxx_bring_down(wcd9xxx);
wcd9xxx_free_reset(wcd9xxx);
wcd9xxx_core_res_deinit(&wcd9xxx->core_res);
mutex_destroy(&wcd9xxx->io_lock);
mutex_destroy(&wcd9xxx->xfer_lock);
if (wcd9xxx_get_intf_type() == WCD9XXX_INTERFACE_TYPE_SLIMBUS)
slim_remove_device(wcd9xxx->slim_slave);
kfree(wcd9xxx);
}
#ifdef CONFIG_DEBUG_FS
struct wcd9xxx *debugCodec;
static struct dentry *debugfs_wcd9xxx_dent;
static struct dentry *debugfs_peek;
static struct dentry *debugfs_poke;
static struct dentry *debugfs_power_state;
static struct dentry *debugfs_reg_dump;
static unsigned char read_data;
static int codec_debug_open(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
static int get_parameters(char *buf, long int *param1, int num_of_par)
{
char *token;
int base, cnt;
token = strsep(&buf, " ");
for (cnt = 0; cnt < num_of_par; cnt++) {
if (token != NULL) {
if ((token[1] == 'x') || (token[1] == 'X'))
base = 16;
else
base = 10;
if (kstrtoul(token, base, &param1[cnt]) != 0)
return -EINVAL;
token = strsep(&buf, " ");
} else
return -EINVAL;
}
return 0;
}
static ssize_t wcd9xxx_slimslave_reg_show(char __user *ubuf, size_t count,
loff_t *ppos)
{
int i, reg_val, len;
ssize_t total = 0;
char tmp_buf[20]; /* each line is 12 bytes but 20 for margin of error */
for (i = (int) *ppos / 12; i <= SLIM_MAX_REG_ADDR; i++) {
reg_val = wcd9xxx_interface_reg_read(debugCodec, i);
len = snprintf(tmp_buf, 25, "0x%.3x: 0x%.2x\n", i, reg_val);
if ((total + len) >= count - 1)
break;
if (copy_to_user((ubuf + total), tmp_buf, len)) {
pr_err("%s: fail to copy reg dump\n", __func__);
total = -EFAULT;
goto copy_err;
}
*ppos += len;
total += len;
}
copy_err:
return total;
}
static ssize_t codec_debug_read(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
char lbuf[8];
char *access_str = file->private_data;
ssize_t ret_cnt;
if (*ppos < 0 || !count)
return -EINVAL;
if (!strcmp(access_str, "slimslave_peek")) {
snprintf(lbuf, sizeof(lbuf), "0x%x\n", read_data);
ret_cnt = simple_read_from_buffer(ubuf, count, ppos, lbuf,
strnlen(lbuf, 7));
} else if (!strcmp(access_str, "slimslave_reg_dump")) {
ret_cnt = wcd9xxx_slimslave_reg_show(ubuf, count, ppos);
} else {
pr_err("%s: %s not permitted to read\n", __func__, access_str);
ret_cnt = -EPERM;
}
return ret_cnt;
}
/*
* Place inside CONFIG_DEBUG section as this function is only used by debugfs
* function
*/
static void wcd9xxx_set_reset_pin_state(struct wcd9xxx *wcd9xxx,
struct wcd9xxx_pdata *pdata,
bool active)
{
if (wcd9xxx->wcd_rst_np) {
if (active)
wcd_gpio_ctrl_select_active_state(wcd9xxx->wcd_rst_np);
else
wcd_gpio_ctrl_select_sleep_state(wcd9xxx->wcd_rst_np);
return;
}
if (pdata->use_pinctrl) {
if (active == true)
pinctrl_select_state(pinctrl_info.pinctrl,
pinctrl_info.extncodec_act);
else
pinctrl_select_state(pinctrl_info.pinctrl,
pinctrl_info.extncodec_sus);
} else
gpio_direction_output(wcd9xxx->reset_gpio,
(active == true ? 1 : 0));
}
static int codec_debug_process_cdc_power(char *lbuf)
{
long int param;
int rc;
struct wcd9xxx_pdata *pdata;
if (wcd9xxx_get_intf_type() != WCD9XXX_INTERFACE_TYPE_SLIMBUS) {
pr_err("%s: CODEC is not in SLIMBUS mode\n", __func__);
rc = -EPERM;
goto error_intf;
}
rc = get_parameters(lbuf, &param, 1);
if (likely(!rc)) {
pdata = debugCodec->slim->dev.platform_data;
if (param == 0) {
wcd9xxx_slim_device_down(debugCodec->slim);
wcd9xxx_disable_supplies(debugCodec, pdata);
wcd9xxx_set_reset_pin_state(debugCodec, pdata, false);
} else if (param == 1) {
wcd9xxx_enable_static_supplies(debugCodec, pdata);
usleep_range(1000, 2000);
wcd9xxx_set_reset_pin_state(debugCodec, pdata, false);
usleep_range(1000, 2000);
wcd9xxx_set_reset_pin_state(debugCodec, pdata, true);
usleep_range(1000, 2000);
wcd9xxx_slim_device_up(debugCodec->slim);
} else {
pr_err("%s: invalid command %ld\n", __func__, param);
}
}
error_intf:
return rc;
}
static ssize_t codec_debug_write(struct file *filp,
const char __user *ubuf, size_t cnt, loff_t *ppos)
{
char *access_str = filp->private_data;
char lbuf[32];
int rc;
long int param[5];
if (cnt > sizeof(lbuf) - 1)
return -EINVAL;
rc = copy_from_user(lbuf, ubuf, cnt);
if (rc)
return -EFAULT;
lbuf[cnt] = '\0';
if (!strcmp(access_str, "slimslave_poke")) {
/* write */
rc = get_parameters(lbuf, param, 2);
if ((param[0] <= 0x3FF) && (param[1] <= 0xFF) &&
(rc == 0))
wcd9xxx_interface_reg_write(debugCodec, param[0],
param[1]);
else
rc = -EINVAL;
} else if (!strcmp(access_str, "slimslave_peek")) {
/* read */
rc = get_parameters(lbuf, param, 1);
if ((param[0] <= 0x3FF) && (rc == 0))
read_data = wcd9xxx_interface_reg_read(debugCodec,
param[0]);
else
rc = -EINVAL;
} else if (!strcmp(access_str, "power_state")) {
rc = codec_debug_process_cdc_power(lbuf);
}
if (rc == 0)
rc = cnt;
else
pr_err("%s: rc = %d\n", __func__, rc);
return rc;
}
static const struct file_operations codec_debug_ops = {
.open = codec_debug_open,
.write = codec_debug_write,
.read = codec_debug_read
};
#endif
static int wcd9xxx_init_supplies(struct wcd9xxx *wcd9xxx,
struct wcd9xxx_pdata *pdata)
{
int ret;
int i;
wcd9xxx->supplies = kzalloc(sizeof(struct regulator_bulk_data) *
ARRAY_SIZE(pdata->regulator),
GFP_KERNEL);
if (!wcd9xxx->supplies) {
ret = -ENOMEM;
goto err;
}
wcd9xxx->num_of_supplies = 0;
if (ARRAY_SIZE(pdata->regulator) > WCD9XXX_MAX_REGULATOR) {
pr_err("%s: Array Size out of bound\n", __func__);
ret = -EINVAL;
goto err;
}
for (i = 0; i < ARRAY_SIZE(pdata->regulator); i++) {
if (pdata->regulator[i].name) {
wcd9xxx->supplies[i].supply = pdata->regulator[i].name;
wcd9xxx->num_of_supplies++;
}
}
ret = regulator_bulk_get(wcd9xxx->dev, wcd9xxx->num_of_supplies,
wcd9xxx->supplies);
if (ret != 0) {
dev_err(wcd9xxx->dev, "Failed to get supplies: err = %d\n",
ret);
goto err_supplies;
}
for (i = 0; i < wcd9xxx->num_of_supplies; i++) {
if (regulator_count_voltages(wcd9xxx->supplies[i].consumer) <=
0)
continue;
ret = regulator_set_voltage(wcd9xxx->supplies[i].consumer,
pdata->regulator[i].min_uV,
pdata->regulator[i].max_uV);
if (ret) {
pr_err("%s: Setting regulator voltage failed for regulator %s err = %d\n",
__func__,
wcd9xxx->supplies[i].supply, ret);
goto err_get;
}
ret = regulator_set_optimum_mode(wcd9xxx->supplies[i].consumer,
pdata->regulator[i].optimum_uA);
if (ret < 0) {
pr_err("%s: Setting regulator optimum mode failed for regulator %s err = %d\n",
__func__,
wcd9xxx->supplies[i].supply, ret);
goto err_get;
} else {
ret = 0;
}
}
return ret;
err_get:
regulator_bulk_free(wcd9xxx->num_of_supplies, wcd9xxx->supplies);
err_supplies:
kfree(wcd9xxx->supplies);
err:
return ret;
}
static int wcd9xxx_enable_static_supplies(struct wcd9xxx *wcd9xxx,
struct wcd9xxx_pdata *pdata)
{
int i;
int ret = 0;
for (i = 0; i < wcd9xxx->num_of_supplies; i++) {
if (pdata->regulator[i].ondemand)
continue;
ret = regulator_enable(wcd9xxx->supplies[i].consumer);
if (ret) {
pr_err("%s: Failed to enable %s\n", __func__,
wcd9xxx->supplies[i].supply);
break;
} else {
pr_debug("%s: Enabled regulator %s\n", __func__,
wcd9xxx->supplies[i].supply);
}
}
while (ret && --i)
if (!pdata->regulator[i].ondemand)
regulator_disable(wcd9xxx->supplies[i].consumer);
return ret;
}
/*
* wcd9xxx_disable_supplies: to disable static regulators
* @wcd9xxx: Handle to the wcd9xxx core
* @pdata: Handle for pdata
* @return: void
*/
void wcd9xxx_disable_supplies(struct wcd9xxx *wcd9xxx, void *data)
{
int i;
int rc;
struct wcd9xxx_pdata *pdata = (struct wcd9xxx_pdata *)data;
for (i = 0; i < wcd9xxx->num_of_supplies; i++) {
if (pdata->regulator[i].ondemand)
continue;
rc = regulator_disable(wcd9xxx->supplies[i].consumer);
if (rc) {
pr_err("%s: Failed to disable %s\n", __func__,
wcd9xxx->supplies[i].supply);
} else {
pr_debug("%s: Disabled regulator %s\n", __func__,
wcd9xxx->supplies[i].supply);
}
}
}
EXPORT_SYMBOL(wcd9xxx_disable_supplies);
static void wcd9xxx_release_supplies(struct wcd9xxx *wcd9xxx,
struct wcd9xxx_pdata *pdata)
{
int i;
wcd9xxx_disable_supplies(wcd9xxx, pdata);
for (i = 0; i < wcd9xxx->num_of_supplies; i++) {
if (regulator_count_voltages(wcd9xxx->supplies[i].consumer) <=
0)
continue;
regulator_set_voltage(wcd9xxx->supplies[i].consumer, 0,
pdata->regulator[i].max_uV);
regulator_set_optimum_mode(wcd9xxx->supplies[i].consumer, 0);
}
regulator_bulk_free(wcd9xxx->num_of_supplies, wcd9xxx->supplies);
kfree(wcd9xxx->supplies);
}
struct wcd9xxx_i2c *get_i2c_wcd9xxx_device_info(u16 reg)
{
u16 mask = 0x0f00;
int value = 0;
struct wcd9xxx_i2c *wcd9xxx = NULL;
value = ((reg & mask) >> 8) & 0x000f;
switch (value) {
case 0:
wcd9xxx = &wcd9xxx_modules[0];
break;
case 1:
wcd9xxx = &wcd9xxx_modules[1];
break;
case 2:
wcd9xxx = &wcd9xxx_modules[2];
break;
case 3:
wcd9xxx = &wcd9xxx_modules[3];
break;
default:
break;
}
return wcd9xxx;
}
int wcd9xxx_i2c_write_device(u16 reg, u8 *value,
u32 bytes)
{
struct i2c_msg *msg;
int ret = 0;
u8 reg_addr = 0;
u8 data[bytes + 1];
struct wcd9xxx_i2c *wcd9xxx;
wcd9xxx = get_i2c_wcd9xxx_device_info(reg);
if (wcd9xxx == NULL || wcd9xxx->client == NULL) {
pr_err("failed to get device info\n");
return -ENODEV;
}
reg_addr = (u8)reg;
msg = &wcd9xxx->xfer_msg[0];
msg->addr = wcd9xxx->client->addr;
msg->len = bytes + 1;
msg->flags = 0;
data[0] = reg;
data[1] = *value;
msg->buf = data;
ret = i2c_transfer(wcd9xxx->client->adapter, wcd9xxx->xfer_msg, 1);
/* Try again if the write fails */
if (ret != 1) {
ret = i2c_transfer(wcd9xxx->client->adapter,
wcd9xxx->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 0;
}
int wcd9xxx_i2c_read_device(unsigned short reg,
int bytes, unsigned char *dest)
{
struct i2c_msg *msg;
int ret = 0;
u8 reg_addr = 0;
struct wcd9xxx_i2c *wcd9xxx;
u8 i = 0;
wcd9xxx = get_i2c_wcd9xxx_device_info(reg);
if (wcd9xxx == NULL || wcd9xxx->client == NULL) {
pr_err("failed to get device info\n");
return -ENODEV;
}
for (i = 0; i < bytes; i++) {
reg_addr = (u8)reg++;
msg = &wcd9xxx->xfer_msg[0];
msg->addr = wcd9xxx->client->addr;
msg->len = 1;
msg->flags = 0;
msg->buf = &reg_addr;
msg = &wcd9xxx->xfer_msg[1];
msg->addr = wcd9xxx->client->addr;
msg->len = 1;
msg->flags = I2C_M_RD;
msg->buf = dest++;
ret = i2c_transfer(wcd9xxx->client->adapter,
wcd9xxx->xfer_msg, 2);
/* Try again if read fails first time */
if (ret != 2) {
ret = i2c_transfer(wcd9xxx->client->adapter,
wcd9xxx->xfer_msg, 2);
if (ret != 2) {
pr_err("failed to read wcd9xxx register\n");
return ret;
}
}
}
return 0;
}
int wcd9xxx_i2c_read(struct wcd9xxx *wcd9xxx, unsigned short reg,
int bytes, void *dest, bool interface_reg)
{
return wcd9xxx_i2c_read_device(reg, bytes, dest);
}
int wcd9xxx_i2c_write(struct wcd9xxx *wcd9xxx, unsigned short reg,
int bytes, void *src, bool interface_reg)
{
return wcd9xxx_i2c_write_device(reg, src, bytes);
}
static int wcd9xxx_i2c_get_client_index(struct i2c_client *client,
int *wcd9xx_index)
{
int ret = 0;
switch (client->addr) {
case WCD9XXX_I2C_TOP_SLAVE_ADDR:
*wcd9xx_index = WCD9XXX_I2C_TOP_LEVEL;
break;
case WCD9XXX_ANALOG_I2C_SLAVE_ADDR:
*wcd9xx_index = WCD9XXX_I2C_ANALOG;
break;
case WCD9XXX_DIGITAL1_I2C_SLAVE_ADDR:
*wcd9xx_index = WCD9XXX_I2C_DIGITAL_1;
break;
case WCD9XXX_DIGITAL2_I2C_SLAVE_ADDR:
*wcd9xx_index = WCD9XXX_I2C_DIGITAL_2;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int wcd9xxx_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct wcd9xxx *wcd9xxx = NULL;
struct wcd9xxx_pdata *pdata = NULL;
int val = 0;
int ret = 0;
int wcd9xx_index = 0;
struct device *dev;
int intf_type;
intf_type = wcd9xxx_get_intf_type();
pr_debug("%s: interface status %d\n", __func__, intf_type);
if (intf_type == WCD9XXX_INTERFACE_TYPE_SLIMBUS) {
dev_dbg(&client->dev, "%s:Codec is detected in slimbus mode\n",
__func__);
return -ENODEV;
} else if (intf_type == WCD9XXX_INTERFACE_TYPE_I2C) {
ret = wcd9xxx_i2c_get_client_index(client, &wcd9xx_index);
if (ret != 0)
dev_err(&client->dev, "%s: I2C set codec I2C\n"
"client failed\n", __func__);
else {
dev_err(&client->dev, "%s:probe for other slaves\n"
"devices of codec I2C slave Addr = %x\n",
__func__, client->addr);
wcd9xxx_modules[wcd9xx_index].client = client;
}
return ret;
} else if (intf_type == WCD9XXX_INTERFACE_TYPE_PROBING) {
dev = &client->dev;
if (client->dev.of_node) {
dev_dbg(&client->dev, "%s:Platform data\n"
"from device tree\n", __func__);
pdata = wcd9xxx_populate_dt_pdata(&client->dev);
if (!pdata) {
dev_err(&client->dev,
"%s: Fail to obtain pdata from device tree\n",
__func__);
ret = -EINVAL;
goto fail;
}
client->dev.platform_data = pdata;
} else {
dev_dbg(&client->dev, "%s:Platform data from\n"
"board file\n", __func__);
pdata = client->dev.platform_data;
}
wcd9xxx = kzalloc(sizeof(struct wcd9xxx), GFP_KERNEL);
if (wcd9xxx == NULL) {
pr_err("%s: error, allocation failed\n", __func__);
ret = -ENOMEM;
goto fail;
}
if (!pdata) {
dev_dbg(&client->dev, "no platform data?\n");
ret = -EINVAL;
goto fail;
}
wcd9xxx->reset_gpio = pdata->reset_gpio;
wcd9xxx->wcd_rst_np = pdata->wcd_rst_np;
if (!wcd9xxx->wcd_rst_np) {
ret = extcodec_get_pinctrl(&client->dev);
if (ret < 0)
pdata->use_pinctrl = false;
else
pdata->use_pinctrl = true;
} else {
pdata->use_pinctrl = true;
}
if (i2c_check_functionality(client->adapter,
I2C_FUNC_I2C) == 0) {
dev_dbg(&client->dev, "can't talk I2C?\n");
ret = -EIO;
goto fail;
}
dev_set_drvdata(&client->dev, wcd9xxx);
wcd9xxx->dev = &client->dev;
wcd9xxx->dev_up = true;
if (client->dev.of_node)
wcd9xxx->mclk_rate = pdata->mclk_rate;
ret = wcd9xxx_init_supplies(wcd9xxx, pdata);
if (ret) {
pr_err("%s: Fail to enable Codec supplies\n",
__func__);
goto err_codec;
}
ret = wcd9xxx_enable_static_supplies(wcd9xxx, pdata);
if (ret) {
pr_err("%s: Fail to enable Codec pre-reset supplies\n",
__func__);
goto err_codec;
}
usleep_range(5, 10);
ret = wcd9xxx_reset(wcd9xxx);
if (ret) {
pr_err("%s: Resetting Codec failed\n", __func__);
goto err_supplies;
}
ret = wcd9xxx_i2c_get_client_index(client, &wcd9xx_index);
if (ret != 0) {
pr_err("%s:Set codec I2C client failed\n", __func__);
goto err_supplies;
}
wcd9xxx_modules[wcd9xx_index].client = client;
wcd9xxx->read_dev = wcd9xxx_i2c_read;
wcd9xxx->write_dev = wcd9xxx_i2c_write;
if (!wcd9xxx->dev->of_node)
wcd9xxx_initialize_irq(&wcd9xxx->core_res,
pdata->irq, pdata->irq_base);
ret = wcd9xxx_device_init(wcd9xxx);
if (ret) {
pr_err("%s: error, initializing device failed (%d)\n",
__func__, ret);
goto err_device_init;
}
ret = wcd9xxx_read(wcd9xxx, WCD9XXX_A_CHIP_STATUS, 1, &val, 0);
if (ret < 0)
pr_err("%s: failed to read the wcd9xxx status (%d)\n",
__func__, ret);
if (val != wcd9xxx->codec_type->i2c_chip_status)
pr_err("%s: unknown chip status 0x%x\n", __func__, val);
wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_I2C);
return ret;
} else
pr_err("%s: I2C probe in wrong state\n", __func__);
err_device_init:
wcd9xxx_free_reset(wcd9xxx);
err_supplies:
wcd9xxx_release_supplies(wcd9xxx, pdata);
err_codec:
kfree(wcd9xxx);
dev_set_drvdata(&client->dev, NULL);
fail:
return ret;
}
static int wcd9xxx_i2c_remove(struct i2c_client *client)
{
struct wcd9xxx *wcd9xxx;
struct wcd9xxx_pdata *pdata = client->dev.platform_data;
pr_debug("exit\n");
wcd9xxx = dev_get_drvdata(&client->dev);
wcd9xxx_release_supplies(wcd9xxx, pdata);
wcd9xxx_device_exit(wcd9xxx);
dev_set_drvdata(&client->dev, NULL);
return 0;
}
static int wcd9xxx_dt_parse_vreg_info(struct device *dev,
struct wcd9xxx_regulator *vreg,
const char *vreg_name,
bool ondemand)
{
int len, ret = 0;
const __be32 *prop;
char prop_name[CODEC_DT_MAX_PROP_SIZE];
struct device_node *regnode = NULL;
u32 prop_val;
snprintf(prop_name, CODEC_DT_MAX_PROP_SIZE, "%s-supply",
vreg_name);
regnode = of_parse_phandle(dev->of_node, prop_name, 0);
if (!regnode) {
dev_err(dev, "Looking up %s property in node %s failed",
prop_name, dev->of_node->full_name);
return -ENODEV;
}
vreg->name = vreg_name;
vreg->ondemand = ondemand;
snprintf(prop_name, CODEC_DT_MAX_PROP_SIZE,
"qcom,%s-voltage", vreg_name);
prop = of_get_property(dev->of_node, prop_name, &len);
if (!prop || (len != (2 * sizeof(__be32)))) {
dev_err(dev, "%s %s property\n",
prop ? "invalid format" : "no", prop_name);
return -EINVAL;
} else {
vreg->min_uV = be32_to_cpup(&prop[0]);
vreg->max_uV = be32_to_cpup(&prop[1]);
}
snprintf(prop_name, CODEC_DT_MAX_PROP_SIZE,
"qcom,%s-current", vreg_name);
ret = of_property_read_u32(dev->of_node, prop_name, &prop_val);
if (ret) {
dev_err(dev, "Looking up %s property in node %s failed",
prop_name, dev->of_node->full_name);
return -EFAULT;
}
vreg->optimum_uA = prop_val;
dev_info(dev, "%s: vol=[%d %d]uV, curr=[%d]uA, ond %d\n", vreg->name,
vreg->min_uV, vreg->max_uV, vreg->optimum_uA, vreg->ondemand);
return 0;
}
static int wcd9xxx_read_of_property_u32(struct device *dev,
const char *name, u32 *val)
{
int ret = 0;
ret = of_property_read_u32(dev->of_node, name, val);
if (ret)
dev_err(dev, "Looking up %s property in node %s failed",
name, dev->of_node->full_name);
return ret;
}
static int wcd9xxx_dt_parse_micbias_info(struct device *dev,
struct wcd9xxx_micbias_setting *micbias)
{
u32 prop_val;
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias-ldoh-v",
&prop_val)))
micbias->ldoh_v = (u8)prop_val;
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias-cfilt1-mv",
&prop_val)))
micbias->cfilt1_mv = prop_val;
else if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias1-mv",
&prop_val)))
micbias->micb1_mv = prop_val;
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias-cfilt2-mv",
&prop_val)))
micbias->cfilt2_mv = prop_val;
else if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias2-mv",
&prop_val)))
micbias->micb2_mv = prop_val;
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias-cfilt3-mv",
&prop_val)))
micbias->cfilt3_mv = prop_val;
else if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias3-mv",
&prop_val)))
micbias->micb3_mv = prop_val;
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias4-mv",
&prop_val)))
micbias->micb4_mv = prop_val;
/* Read micbias values for codec. Does not matter even if a few
* micbias values are not defined in the Device Tree. Codec will
* anyway not use those values
*/
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias1-cfilt-sel",
&prop_val)))
micbias->bias1_cfilt_sel = (u8)prop_val;
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias2-cfilt-sel",
&prop_val)))
micbias->bias2_cfilt_sel = (u8)prop_val;
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias3-cfilt-sel",
&prop_val)))
micbias->bias3_cfilt_sel = (u8)prop_val;
if (!(wcd9xxx_read_of_property_u32(dev, "qcom,cdc-micbias4-cfilt-sel",
&prop_val)))
micbias->bias4_cfilt_sel = (u8)prop_val;
/* micbias external cap */
micbias->bias1_cap_mode =
(of_property_read_bool(dev->of_node, "qcom,cdc-micbias1-ext-cap") ?
MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP);
micbias->bias2_cap_mode =
(of_property_read_bool(dev->of_node, "qcom,cdc-micbias2-ext-cap") ?
MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP);
micbias->bias3_cap_mode =
(of_property_read_bool(dev->of_node, "qcom,cdc-micbias3-ext-cap") ?
MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP);
micbias->bias4_cap_mode =
(of_property_read_bool(dev->of_node, "qcom,cdc-micbias4-ext-cap") ?
MICBIAS_EXT_BYP_CAP : MICBIAS_NO_EXT_BYP_CAP);
micbias->bias2_is_headset_only =
of_property_read_bool(dev->of_node,
"qcom,cdc-micbias2-headset-only");
dev_dbg(dev, "ldoh_v %u cfilt1_mv %u cfilt2_mv %u cfilt3_mv %u",
(u32)micbias->ldoh_v, (u32)micbias->cfilt1_mv,
(u32)micbias->cfilt2_mv, (u32)micbias->cfilt3_mv);
dev_dbg(dev, "micb1_mv %u micb2_mv %u micb3_mv %u micb4_mv %u",
micbias->micb1_mv, micbias->micb2_mv,
micbias->micb3_mv, micbias->micb4_mv);
dev_dbg(dev, "bias1_cfilt_sel %u bias2_cfilt_sel %u\n",
(u32)micbias->bias1_cfilt_sel, (u32)micbias->bias2_cfilt_sel);
dev_dbg(dev, "bias3_cfilt_sel %u bias4_cfilt_sel %u\n",
(u32)micbias->bias3_cfilt_sel, (u32)micbias->bias4_cfilt_sel);
dev_dbg(dev, "bias1_ext_cap %d bias2_ext_cap %d\n",
micbias->bias1_cap_mode, micbias->bias2_cap_mode);
dev_dbg(dev, "bias3_ext_cap %d bias4_ext_cap %d\n",
micbias->bias3_cap_mode, micbias->bias4_cap_mode);
dev_dbg(dev, "bias2_is_headset_only %d\n",
micbias->bias2_is_headset_only);
return 0;
}
static int wcd9xxx_dt_parse_slim_interface_dev_info(struct device *dev,
struct slim_device *slim_ifd)
{
int ret = 0;
struct property *prop;
ret = of_property_read_string(dev->of_node, "qcom,cdc-slim-ifd",
&slim_ifd->name);
if (ret) {
dev_err(dev, "Looking up %s property in node %s failed",
"qcom,cdc-slim-ifd-dev", dev->of_node->full_name);
return -ENODEV;
}
prop = of_find_property(dev->of_node,
"qcom,cdc-slim-ifd-elemental-addr", NULL);
if (!prop) {
dev_err(dev, "Looking up %s property in node %s failed",
"qcom,cdc-slim-ifd-elemental-addr",
dev->of_node->full_name);
return -ENODEV;
} else if (prop->length != 6) {
dev_err(dev, "invalid codec slim ifd addr. addr length = %d\n",
prop->length);
return -ENODEV;
}
memcpy(slim_ifd->e_addr, prop->value, 6);
return 0;
}
static int wcd9xxx_process_supplies(struct device *dev,
struct wcd9xxx_pdata *pdata, const char *supply_list,
int supply_cnt, bool is_ondemand, int index)
{
int idx, ret = 0;
const char *name;
if (supply_cnt == 0) {
dev_dbg(dev, "%s: no supplies defined for %s\n", __func__,
supply_list);
return 0;
}
for (idx = 0; idx < supply_cnt; idx++) {
ret = of_property_read_string_index(dev->of_node,
supply_list, idx,
&name);
if (ret) {
dev_err(dev, "%s: of read string %s idx %d error %d\n",
__func__, supply_list, idx, ret);
goto err;
}
dev_dbg(dev, "%s: Found cdc supply %s as part of %s\n",
__func__, name, supply_list);
ret = wcd9xxx_dt_parse_vreg_info(dev,
&pdata->regulator[index + idx],
name, is_ondemand);
if (ret)
goto err;
}
return 0;
err:
return ret;
}
/*
* wcd9xxx_validate_dmic_sample_rate:
* Given the dmic_sample_rate and mclk rate, validate the
* dmic_sample_rate. If dmic rate is found to be invalid,
* assign the dmic rate as undefined, so individual codec
* drivers can use thier own defaults
* @dev: the device for which the dmic is to be configured
* @dmic_sample_rate: The input dmic_sample_rate
* @mclk_rate: The input codec mclk rate
* @dmic_rate_type: String to indicate the type of dmic sample
* rate, used for debug/error logging.
*/
static u32 wcd9xxx_validate_dmic_sample_rate(struct device *dev,
u32 dmic_sample_rate, u32 mclk_rate,
const char *dmic_rate_type)
{
u32 div_factor;
if (dmic_sample_rate == WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED ||
mclk_rate % dmic_sample_rate != 0)
goto undefined_rate;
div_factor = mclk_rate / dmic_sample_rate;
switch (div_factor) {
case 2:
case 3:
case 4:
case 16:
/* Valid dmic DIV factors */
dev_dbg(dev,
"%s: DMIC_DIV = %u, mclk_rate = %u\n",
__func__, div_factor, mclk_rate);
break;
case 6:
/* DIV 6 is valid only for 12.288 MCLK */
if (mclk_rate != WCD9XXX_MCLK_CLK_12P288MHZ)
goto undefined_rate;
break;
default:
/* Any other DIV factor is invalid */
goto undefined_rate;
}
return dmic_sample_rate;
undefined_rate:
dev_info(dev,
"%s: Invalid %s = %d, for mclk %d\n",
__func__,
dmic_rate_type,
dmic_sample_rate, mclk_rate);
dmic_sample_rate = WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED;
return dmic_sample_rate;
}
static struct wcd9xxx_pdata *wcd9xxx_populate_dt_pdata(struct device *dev)
{
struct wcd9xxx_pdata *pdata;
int ret, static_cnt, ond_cnt, cp_supplies_cnt;
u32 mclk_rate = 0;
u32 dmic_sample_rate = 0;
u32 mad_dmic_sample_rate = 0;
const char *static_prop_name = "qcom,cdc-static-supplies";
const char *ond_prop_name = "qcom,cdc-on-demand-supplies";
const char *cp_supplies_name = "qcom,cdc-cp-supplies";
const char *cdc_name;
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata) {
dev_err(dev, "could not allocate memory for platform data\n");
return NULL;
}
static_cnt = of_property_count_strings(dev->of_node, static_prop_name);
if (IS_ERR_VALUE(static_cnt)) {
dev_err(dev, "%s: Failed to get static supplies %d\n", __func__,
static_cnt);
goto err;
}
/* On-demand supply list is an optional property */
ond_cnt = of_property_count_strings(dev->of_node, ond_prop_name);
if (IS_ERR_VALUE(ond_cnt))
ond_cnt = 0;
/* cp-supplies list is an optional property */
cp_supplies_cnt = of_property_count_strings(dev->of_node,
cp_supplies_name);
if (IS_ERR_VALUE(cp_supplies_cnt))
cp_supplies_cnt = 0;
BUG_ON(static_cnt <= 0 || ond_cnt < 0 || cp_supplies_cnt < 0);
if ((static_cnt + ond_cnt + cp_supplies_cnt)
> ARRAY_SIZE(pdata->regulator)) {
dev_err(dev, "%s: Num of supplies %u > max supported %zu\n",
__func__, static_cnt, ARRAY_SIZE(pdata->regulator));
goto err;
}
ret = wcd9xxx_process_supplies(dev, pdata, static_prop_name,
static_cnt, STATIC_REGULATOR, 0);
if (ret)
goto err;
ret = wcd9xxx_process_supplies(dev, pdata, ond_prop_name,
ond_cnt, ONDEMAND_REGULATOR, static_cnt);
if (ret)
goto err;
ret = wcd9xxx_process_supplies(dev, pdata, cp_supplies_name,
cp_supplies_cnt, ONDEMAND_REGULATOR,
static_cnt + ond_cnt);
if (ret)
goto err;
ret = wcd9xxx_dt_parse_micbias_info(dev, &pdata->micbias);
if (ret)
goto err;
pdata->wcd_rst_np = of_parse_phandle(dev->of_node,
"qcom,wcd-rst-gpio-node", 0);
if (!pdata->wcd_rst_np) {
pdata->reset_gpio = of_get_named_gpio(dev->of_node,
"qcom,cdc-reset-gpio", 0);
if (pdata->reset_gpio < 0) {
dev_err(dev, "Looking up %s property in node %s failed %d\n",
"qcom, cdc-reset-gpio",
dev->of_node->full_name, pdata->reset_gpio);
goto err;
}
dev_dbg(dev, "%s: reset gpio %d", __func__, pdata->reset_gpio);
}
ret = of_property_read_u32(dev->of_node,
"qcom,cdc-mclk-clk-rate",
&mclk_rate);
if (ret) {
dev_err(dev, "Looking up %s property in\n"
"node %s failed",
"qcom,cdc-mclk-clk-rate",
dev->of_node->full_name);
devm_kfree(dev, pdata);
ret = -EINVAL;
goto err;
}
pdata->mclk_rate = mclk_rate;
if (pdata->mclk_rate != WCD9XXX_MCLK_CLK_9P6HZ &&
pdata->mclk_rate != WCD9XXX_MCLK_CLK_12P288MHZ) {
dev_err(dev,
"%s: Invalid mclk_rate = %u\n",
__func__, pdata->mclk_rate);
ret = -EINVAL;
goto err;
}
ret = of_property_read_u32(dev->of_node,
"qcom,cdc-dmic-sample-rate",
&dmic_sample_rate);
if (ret) {
dev_err(dev, "Looking up %s property in node %s failed",
"qcom,cdc-dmic-sample-rate",
dev->of_node->full_name);
dmic_sample_rate = WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED;
}
pdata->dmic_sample_rate =
wcd9xxx_validate_dmic_sample_rate(dev,
dmic_sample_rate,
pdata->mclk_rate,
"audio_dmic_rate");
ret = of_property_read_u32(dev->of_node,
"qcom,cdc-mad-dmic-rate",
&mad_dmic_sample_rate);
if (ret) {
dev_err(dev, "Looking up %s property in node %s failed, err = %d",
"qcom,cdc-mad-dmic-rate",
dev->of_node->full_name, ret);
mad_dmic_sample_rate = WCD9XXX_DMIC_SAMPLE_RATE_UNDEFINED;
}
pdata->mad_dmic_sample_rate =
wcd9xxx_validate_dmic_sample_rate(dev,
mad_dmic_sample_rate,
pdata->mclk_rate,
"mad_dmic_rate");
ret = of_property_read_string(dev->of_node,
"qcom,cdc-variant",
&cdc_name);
if (ret) {
dev_dbg(dev, "Property %s not found in node %s\n",
"qcom,cdc-variant",
dev->of_node->full_name);
pdata->cdc_variant = WCD9XXX;
} else {
if (!strcmp(cdc_name, "WCD9330"))
pdata->cdc_variant = WCD9330;
else
pdata->cdc_variant = WCD9XXX;
}
return pdata;
err:
devm_kfree(dev, pdata);
return NULL;
}
static int wcd9xxx_slim_get_laddr(struct slim_device *sb,
const u8 *e_addr, u8 e_len, u8 *laddr)
{
int ret;
const unsigned long timeout = jiffies +
msecs_to_jiffies(SLIMBUS_PRESENT_TIMEOUT);
do {
ret = slim_get_logical_addr(sb, e_addr, e_len, laddr);
if (!ret)
break;
/* Give SLIMBUS time to report present and be ready. */
usleep_range(1000, 1100);
pr_debug_ratelimited("%s: retyring get logical addr\n",
__func__);
} while time_before(jiffies, timeout);
return ret;
}
static struct regmap_bus regmap_slim = {
.write = regmap_slim_write,
.gather_write = regmap_slim_gather_write,
.read = regmap_slim_read,
.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
};
struct regmap *devm_regmap_init_slim(struct slim_device *slim,
const struct regmap_config *config)
{
return devm_regmap_init(&slim->dev, &regmap_slim, &slim->dev, config);
}
static const struct of_device_id wcd9xxx_of_match[] = {
{ .compatible = "qcom,tomtom-slim-pgd",
.data = (void *)&wcd9xxx_cdc_types[WCD9330]},
{ .compatible = "qcom,tasha-slim-pgd",
.data = (void *)&wcd9xxx_cdc_types[WCD9335]},
{ }
};
MODULE_DEVICE_TABLE(of, wcd9xxx_of_match);
static void wcd9xxx_set_codec_specific_param(struct wcd9xxx *wcd9xxx)
{
if (!wcd9xxx) {
pr_err("%s: wcd9xxx is NULL\n", __func__);
return;
}
switch (wcd9xxx->type) {
case WCD9335:
wcd9xxx->using_regmap = true;
wcd9xxx->prev_pg_valid = false;
break;
default:
wcd9xxx->using_regmap = false;
break;
}
pr_debug("%s: Codec %s regmap\n",
__func__, (wcd9xxx->using_regmap ? "using" : "not using"));
return;
}
static int wcd9xxx_slim_probe(struct slim_device *slim)
{
struct wcd9xxx *wcd9xxx;
struct wcd9xxx_pdata *pdata;
int ret = 0;
int intf_type;
const struct of_device_id *of_id;
intf_type = wcd9xxx_get_intf_type();
if (intf_type == WCD9XXX_INTERFACE_TYPE_I2C) {
dev_dbg(&slim->dev, "%s:Codec is detected in I2C mode\n",
__func__);
return -ENODEV;
}
if (slim->dev.of_node) {
dev_info(&slim->dev, "Platform data from device tree\n");
pdata = wcd9xxx_populate_dt_pdata(&slim->dev);
if (!pdata) {
dev_err(&slim->dev,
"%s: Fail to obtain pdata from device tree\n",
__func__);
ret = -EINVAL;
goto err;
}
ret = wcd9xxx_dt_parse_slim_interface_dev_info(&slim->dev,
&pdata->slimbus_slave_device);
if (ret) {
dev_err(&slim->dev, "Error, parsing slim interface\n");
devm_kfree(&slim->dev, pdata);
ret = -EINVAL;
goto err;
}
slim->dev.platform_data = pdata;
} else {
dev_info(&slim->dev, "Platform data from board file\n");
pdata = slim->dev.platform_data;
}
if (!pdata) {
dev_err(&slim->dev, "Error, no platform data\n");
ret = -EINVAL;
goto err;
}
wcd9xxx = kzalloc(sizeof(struct wcd9xxx), GFP_KERNEL);
if (wcd9xxx == NULL) {
pr_err("%s: error, allocation failed\n", __func__);
ret = -ENOMEM;
goto err;
}
if (!slim->ctrl) {
pr_err("Error, no SLIMBUS control data\n");
ret = -EINVAL;
goto err_codec;
}
wcd9xxx->type = WCD9XXX;
if (slim->dev.of_node) {
of_id = of_match_device(wcd9xxx_of_match, &slim->dev);
if (of_id) {
wcd9xxx->type = *((int *)of_id->data);
dev_info(&slim->dev, "%s: codec type is %d\n",
__func__, wcd9xxx->type);
}
} else {
dev_info(&slim->dev, "%s: dev.of_node is NULL, default to WCD9XXX\n",
__func__);
wcd9xxx->type = WCD9XXX;
}
wcd9xxx_set_codec_specific_param(wcd9xxx);
if (wcd9xxx->using_regmap) {
wcd9xxx->regmap = devm_regmap_init_slim(slim,
&wcd9xxx_base_regmap_config);
if (IS_ERR(wcd9xxx->regmap)) {
ret = PTR_ERR(wcd9xxx->regmap);
dev_err(&slim->dev, "%s: Failed to allocate register map: %d\n",
__func__, ret);
goto err_codec;
}
}
wcd9xxx->slim = slim;
slim_set_clientdata(slim, wcd9xxx);
wcd9xxx->reset_gpio = pdata->reset_gpio;
wcd9xxx->dev = &slim->dev;
wcd9xxx->mclk_rate = pdata->mclk_rate;
wcd9xxx->dev_up = true;
wcd9xxx->wcd_rst_np = pdata->wcd_rst_np;
if (!wcd9xxx->wcd_rst_np) {
ret = extcodec_get_pinctrl(&slim->dev);
if (ret < 0)
pdata->use_pinctrl = false;
else
pdata->use_pinctrl = true;
} else {
pdata->use_pinctrl = true;
}
ret = wcd9xxx_init_supplies(wcd9xxx, pdata);
if (ret) {
pr_err("%s: Fail to init Codec supplies %d\n", __func__, ret);
goto err_codec;
}
ret = wcd9xxx_enable_static_supplies(wcd9xxx, pdata);
if (ret) {
pr_err("%s: Fail to enable Codec pre-reset supplies\n",
__func__);
goto err_codec;
}
/* For WCD9335, it takes about 600us for the Vout_A and
* Vout_D to be ready after BUCK_SIDO is powered up.
* SYS_RST_N shouldn't be pulled high during this time
*/
if (wcd9xxx->type == WCD9335)
usleep_range(600, 650);
else
usleep_range(5, 10);
ret = wcd9xxx_reset(wcd9xxx);
if (ret) {
pr_err("%s: Resetting Codec failed\n", __func__);
goto err_supplies;
}
ret = wcd9xxx_slim_get_laddr(wcd9xxx->slim, wcd9xxx->slim->e_addr,
ARRAY_SIZE(wcd9xxx->slim->e_addr),
&wcd9xxx->slim->laddr);
if (ret) {
pr_err("%s: failed to get slimbus %s logical address: %d\n",
__func__, wcd9xxx->slim->name, ret);
ret = -EPROBE_DEFER;
goto err_reset;
}
wcd9xxx->read_dev = wcd9xxx_slim_read_device;
wcd9xxx->write_dev = wcd9xxx_slim_write_device;
wcd9xxx_pgd_la = wcd9xxx->slim->laddr;
wcd9xxx->slim_slave = &pdata->slimbus_slave_device;
if (!wcd9xxx->dev->of_node)
wcd9xxx_initialize_irq(&wcd9xxx->core_res,
pdata->irq, pdata->irq_base);
ret = slim_add_device(slim->ctrl, wcd9xxx->slim_slave);
if (ret) {
pr_err("%s: error, adding SLIMBUS device failed\n", __func__);
goto err_reset;
}
ret = wcd9xxx_slim_get_laddr(wcd9xxx->slim_slave,
wcd9xxx->slim_slave->e_addr,
ARRAY_SIZE(wcd9xxx->slim_slave->e_addr),
&wcd9xxx->slim_slave->laddr);
if (ret) {
pr_err("%s: failed to get slimbus %s logical address: %d\n",
__func__, wcd9xxx->slim->name, ret);
ret = -EPROBE_DEFER;
goto err_slim_add;
}
wcd9xxx_inf_la = wcd9xxx->slim_slave->laddr;
wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_SLIMBUS);
ret = wcd9xxx_device_init(wcd9xxx);
if (ret) {
pr_err("%s: error, initializing device failed (%d)\n",
__func__, ret);
goto err_slim_add;
}
#ifdef CONFIG_DEBUG_FS
debugCodec = wcd9xxx;
debugfs_wcd9xxx_dent = debugfs_create_dir
("wcd9xxx_core", 0);
if (!IS_ERR(debugfs_wcd9xxx_dent)) {
debugfs_peek = debugfs_create_file("slimslave_peek",
S_IFREG | S_IRUSR, debugfs_wcd9xxx_dent,
(void *) "slimslave_peek", &codec_debug_ops);
debugfs_poke = debugfs_create_file("slimslave_poke",
S_IFREG | S_IRUSR, debugfs_wcd9xxx_dent,
(void *) "slimslave_poke", &codec_debug_ops);
debugfs_power_state = debugfs_create_file("power_state",
S_IFREG | S_IRUSR, debugfs_wcd9xxx_dent,
(void *) "power_state", &codec_debug_ops);
debugfs_reg_dump = debugfs_create_file("slimslave_reg_dump",
S_IFREG | S_IRUSR, debugfs_wcd9xxx_dent,
(void *) "slimslave_reg_dump", &codec_debug_ops);
}
#endif
return ret;
err_slim_add:
slim_remove_device(wcd9xxx->slim_slave);
err_reset:
wcd9xxx_free_reset(wcd9xxx);
err_supplies:
wcd9xxx_release_supplies(wcd9xxx, pdata);
err_codec:
kfree(wcd9xxx);
slim_set_clientdata(slim, NULL);
err:
return ret;
}
static int wcd9xxx_slim_remove(struct slim_device *pdev)
{
struct wcd9xxx *wcd9xxx;
struct wcd9xxx_pdata *pdata = pdev->dev.platform_data;
#ifdef CONFIG_DEBUG_FS
debugfs_remove_recursive(debugfs_wcd9xxx_dent);
#endif
wcd9xxx = slim_get_devicedata(pdev);
wcd9xxx_deinit_slimslave(wcd9xxx);
slim_remove_device(wcd9xxx->slim_slave);
wcd9xxx_release_supplies(wcd9xxx, pdata);
wcd9xxx_device_exit(wcd9xxx);
slim_set_clientdata(pdev, NULL);
return 0;
}
static int wcd9xxx_device_up(struct wcd9xxx *wcd9xxx)
{
int ret = 0;
struct wcd9xxx_core_resource *wcd9xxx_res = &wcd9xxx->core_res;
dev_info(wcd9xxx->dev, "%s: codec bring up\n", __func__);
wcd9xxx_bring_up(wcd9xxx);
ret = wcd9xxx_irq_init(wcd9xxx_res);
if (ret) {
pr_err("%s: wcd9xx_irq_init failed : %d\n", __func__, ret);
} else {
if (wcd9xxx->post_reset)
ret = wcd9xxx->post_reset(wcd9xxx);
}
return ret;
}
static int wcd9xxx_slim_device_reset(struct slim_device *sldev)
{
int ret;
struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
if (!wcd9xxx) {
pr_err("%s: wcd9xxx is NULL\n", __func__);
return -EINVAL;
}
dev_info(wcd9xxx->dev, "%s: device reset, dev_up = %d\n",
__func__, wcd9xxx->dev_up);
if (wcd9xxx->dev_up)
return 0;
ret = wcd9xxx_reset(wcd9xxx);
if (ret)
dev_err(wcd9xxx->dev, "%s: Resetting Codec failed\n", __func__);
return ret;
}
static int wcd9xxx_slim_device_up(struct slim_device *sldev)
{
struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
if (!wcd9xxx) {
pr_err("%s: wcd9xxx is NULL\n", __func__);
return -EINVAL;
}
dev_info(wcd9xxx->dev, "%s: slim device up, dev_up = %d\n",
__func__, wcd9xxx->dev_up);
if (wcd9xxx->dev_up)
return 0;
wcd9xxx->dev_up = true;
return wcd9xxx_device_up(wcd9xxx);
}
static int wcd9xxx_slim_device_down(struct slim_device *sldev)
{
struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
if (!wcd9xxx) {
pr_err("%s: wcd9xxx is NULL\n", __func__);
return -EINVAL;
}
dev_info(wcd9xxx->dev, "%s: device down, dev_up = %d\n",
__func__, wcd9xxx->dev_up);
if (!wcd9xxx->dev_up)
return 0;
wcd9xxx->dev_up = false;
wcd9xxx_irq_exit(&wcd9xxx->core_res);
if (wcd9xxx->dev_down)
wcd9xxx->dev_down(wcd9xxx);
return 0;
}
/*
* wcd9xxx_disable_static_supplies_to_optimum: to set supplies to optimum mode
* @wcd9xxx: Handle to the wcd9xxx core
* @pdata: Handle for pdata
* @return: returns 0 if success or error information to the caller in case
* of failure.
*/
int wcd9xxx_disable_static_supplies_to_optimum(struct wcd9xxx *wcd9xxx,
void *data)
{
int i;
int ret = 0;
struct wcd9xxx_pdata *pdata = (struct wcd9xxx_pdata *)data;
for (i = 0; i < wcd9xxx->num_of_supplies; i++) {
if (pdata->regulator[i].ondemand)
continue;
if (regulator_count_voltages(wcd9xxx->supplies[i].consumer) <=
0)
continue;
regulator_set_voltage(wcd9xxx->supplies[i].consumer, 0,
pdata->regulator[i].max_uV);
regulator_set_optimum_mode(wcd9xxx->supplies[i].consumer, 0);
dev_dbg(wcd9xxx->dev, "Regulator %s set optimum mode\n",
wcd9xxx->supplies[i].supply);
}
return ret;
}
EXPORT_SYMBOL(wcd9xxx_disable_static_supplies_to_optimum);
/*
* wcd9xxx_enable_static_supplies_to_optimum(): to set supplies to optimum mode
* @wcd9xxx: Handle to the wcd9xxx core
* @pdata: Handle for pdata
*
* To set all the static supplied to optimum mode so as to save power
*
* Return: returns 0 if success or error information to the caller in case
* of failure.
*/
int wcd9xxx_enable_static_supplies_to_optimum(
struct wcd9xxx *wcd9xxx, void *data)
{
int i;
int ret = 0;
struct wcd9xxx_pdata *pdata = (struct wcd9xxx_pdata *)data;
for (i = 0; i < wcd9xxx->num_of_supplies; i++) {
if (pdata->regulator[i].ondemand)
continue;
if (regulator_count_voltages(wcd9xxx->supplies[i].consumer) <=
0)
continue;
ret = regulator_set_voltage(wcd9xxx->supplies[i].consumer,
pdata->regulator[i].min_uV,
pdata->regulator[i].max_uV);
if (ret) {
dev_err(wcd9xxx->dev,
"Setting volt failed for regulator %s err %d\n",
wcd9xxx->supplies[i].supply, ret);
}
ret = regulator_set_optimum_mode(wcd9xxx->supplies[i].consumer,
pdata->regulator[i].optimum_uA);
dev_dbg(wcd9xxx->dev, "Regulator %s set optimum mode\n",
wcd9xxx->supplies[i].supply);
}
return ret;
}
EXPORT_SYMBOL(wcd9xxx_enable_static_supplies_to_optimum);
static int wcd9xxx_slim_resume(struct slim_device *sldev)
{
struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
return wcd9xxx_core_res_resume(&wcd9xxx->core_res);
}
static int wcd9xxx_i2c_resume(struct i2c_client *i2cdev)
{
struct wcd9xxx *wcd9xxx = dev_get_drvdata(&i2cdev->dev);
if (wcd9xxx)
return wcd9xxx_core_res_resume(&wcd9xxx->core_res);
else
return 0;
}
static int wcd9xxx_slim_suspend(struct slim_device *sldev, pm_message_t pmesg)
{
struct wcd9xxx *wcd9xxx = slim_get_devicedata(sldev);
return wcd9xxx_core_res_suspend(&wcd9xxx->core_res, pmesg);
}
static int wcd9xxx_i2c_suspend(struct i2c_client *i2cdev, pm_message_t pmesg)
{
struct wcd9xxx *wcd9xxx = dev_get_drvdata(&i2cdev->dev);
if (wcd9xxx)
return wcd9xxx_core_res_suspend(&wcd9xxx->core_res, pmesg);
else
return 0;
}
static const struct slim_device_id sitar_slimtest_id[] = {
{"sitar-slim", 0},
{}
};
static struct slim_driver sitar_slim_driver = {
.driver = {
.name = "sitar-slim",
.owner = THIS_MODULE,
},
.probe = wcd9xxx_slim_probe,
.remove = wcd9xxx_slim_remove,
.id_table = sitar_slimtest_id,
.resume = wcd9xxx_slim_resume,
.suspend = wcd9xxx_slim_suspend,
};
static const struct slim_device_id sitar1p1_slimtest_id[] = {
{"sitar1p1-slim", 0},
{}
};
static struct slim_driver sitar1p1_slim_driver = {
.driver = {
.name = "sitar1p1-slim",
.owner = THIS_MODULE,
},
.probe = wcd9xxx_slim_probe,
.remove = wcd9xxx_slim_remove,
.id_table = sitar1p1_slimtest_id,
.resume = wcd9xxx_slim_resume,
.suspend = wcd9xxx_slim_suspend,
};
static const struct slim_device_id slimtest_id[] = {
{"tabla-slim", 0},
{}
};
static struct slim_driver tabla_slim_driver = {
.driver = {
.name = "tabla-slim",
.owner = THIS_MODULE,
},
.probe = wcd9xxx_slim_probe,
.remove = wcd9xxx_slim_remove,
.id_table = slimtest_id,
.resume = wcd9xxx_slim_resume,
.suspend = wcd9xxx_slim_suspend,
};
static const struct slim_device_id slimtest2x_id[] = {
{"tabla2x-slim", 0},
{}
};
static struct slim_driver tabla2x_slim_driver = {
.driver = {
.name = "tabla2x-slim",
.owner = THIS_MODULE,
},
.probe = wcd9xxx_slim_probe,
.remove = wcd9xxx_slim_remove,
.id_table = slimtest2x_id,
.resume = wcd9xxx_slim_resume,
.suspend = wcd9xxx_slim_suspend,
};
static const struct slim_device_id taiko_slimtest_id[] = {
{"taiko-slim-pgd", 0},
{}
};
static struct slim_driver taiko_slim_driver = {
.driver = {
.name = "taiko-slim",
.owner = THIS_MODULE,
},
.probe = wcd9xxx_slim_probe,
.remove = wcd9xxx_slim_remove,
.id_table = taiko_slimtest_id,
.resume = wcd9xxx_slim_resume,
.suspend = wcd9xxx_slim_suspend,
.device_up = wcd9xxx_slim_device_up,
.reset_device = wcd9xxx_slim_device_reset,
.device_down = wcd9xxx_slim_device_down,
};
static const struct slim_device_id tapan_slimtest_id[] = {
{"tapan-slim-pgd", 0},
{}
};
static struct slim_driver tapan_slim_driver = {
.driver = {
.name = "tapan-slim",
.owner = THIS_MODULE,
},
.probe = wcd9xxx_slim_probe,
.remove = wcd9xxx_slim_remove,
.id_table = tapan_slimtest_id,
.resume = wcd9xxx_slim_resume,
.suspend = wcd9xxx_slim_suspend,
.device_up = wcd9xxx_slim_device_up,
.reset_device = wcd9xxx_slim_device_reset,
.device_down = wcd9xxx_slim_device_down,
};
static const struct slim_device_id tomtom_slimtest_id[] = {
{"tomtom-slim-pgd", 0},
{}
};
static const struct slim_device_id tasha_slimtest_id[] = {
{"tasha-slim-pgd", 0},
{}
};
static struct slim_driver tomtom_slim_driver = {
.driver = {
.name = "tomtom-slim",
.owner = THIS_MODULE,
},
.probe = wcd9xxx_slim_probe,
.remove = wcd9xxx_slim_remove,
.id_table = tomtom_slimtest_id,
.resume = wcd9xxx_slim_resume,
.suspend = wcd9xxx_slim_suspend,
.device_up = wcd9xxx_slim_device_up,
.reset_device = wcd9xxx_slim_device_reset,
.device_down = wcd9xxx_slim_device_down,
};
static struct slim_driver wcd9335_slim_driver = {
.driver = {
.name = "wcd9335-slim",
.owner = THIS_MODULE,
},
.probe = wcd9xxx_slim_probe,
.remove = wcd9xxx_slim_remove,
.id_table = tasha_slimtest_id,
.resume = wcd9xxx_slim_resume,
.suspend = wcd9xxx_slim_suspend,
.device_up = wcd9xxx_slim_device_up,
.reset_device = wcd9xxx_slim_device_reset,
.device_down = wcd9xxx_slim_device_down,
};
static struct i2c_device_id wcd9xxx_id_table[] = {
{"wcd9xxx-i2c", WCD9XXX_I2C_TOP_LEVEL},
{"wcd9xxx-i2c", WCD9XXX_I2C_ANALOG},
{"wcd9xxx-i2c", WCD9XXX_I2C_DIGITAL_1},
{"wcd9xxx-i2c", WCD9XXX_I2C_DIGITAL_2},
{}
};
static struct i2c_device_id tabla_id_table[] = {
{"tabla top level", WCD9XXX_I2C_TOP_LEVEL},
{"tabla analog", WCD9XXX_I2C_ANALOG},
{"tabla digital1", WCD9XXX_I2C_DIGITAL_1},
{"tabla digital2", WCD9XXX_I2C_DIGITAL_2},
{}
};
MODULE_DEVICE_TABLE(i2c, tabla_id_table);
static struct i2c_driver tabla_i2c_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "tabla-i2c-core",
},
.id_table = tabla_id_table,
.probe = wcd9xxx_i2c_probe,
.remove = wcd9xxx_i2c_remove,
.resume = wcd9xxx_i2c_resume,
.suspend = wcd9xxx_i2c_suspend,
};
static struct i2c_driver wcd9xxx_i2c_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "wcd9xxx-i2c-core",
},
.id_table = wcd9xxx_id_table,
.probe = wcd9xxx_i2c_probe,
.remove = wcd9xxx_i2c_remove,
.resume = wcd9xxx_i2c_resume,
.suspend = wcd9xxx_i2c_suspend,
};
static int __init wcd9xxx_init(void)
{
int ret[NUM_WCD9XXX_REG_RET];
int i = 0;
wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_PROBING);
ret[0] = slim_driver_register(&tabla_slim_driver);
if (ret[0])
pr_err("Failed to register tabla SB driver: %d\n", ret[0]);
ret[1] = slim_driver_register(&tabla2x_slim_driver);
if (ret[1])
pr_err("Failed to register tabla2x SB driver: %d\n", ret[1]);
ret[2] = i2c_add_driver(&tabla_i2c_driver);
if (ret[2])
pr_err("failed to add the tabla2x I2C driver: %d\n", ret[2]);
ret[3] = slim_driver_register(&sitar_slim_driver);
if (ret[3])
pr_err("Failed to register sitar SB driver: %d\n", ret[3]);
ret[4] = slim_driver_register(&sitar1p1_slim_driver);
if (ret[4])
pr_err("Failed to register sitar SB driver: %d\n", ret[4]);
ret[5] = slim_driver_register(&taiko_slim_driver);
if (ret[5])
pr_err("Failed to register taiko SB driver: %d\n", ret[5]);
ret[6] = i2c_add_driver(&wcd9xxx_i2c_driver);
if (ret[6])
pr_err("failed to add the wcd9xxx I2C driver: %d\n", ret[6]);
ret[7] = slim_driver_register(&tapan_slim_driver);
if (ret[7])
pr_err("Failed to register tapan SB driver: %d\n", ret[7]);
ret[8] = slim_driver_register(&tomtom_slim_driver);
if (ret[8])
pr_err("Failed to register tomtom SB driver: %d\n", ret[8]);
ret[9] = slim_driver_register(&wcd9335_slim_driver);
if (ret[9])
pr_err("Failed to register tomtom SB driver: %d\n", ret[9]);
for (i = 0; i < NUM_WCD9XXX_REG_RET; i++) {
if (ret[i])
return ret[i];
}
return 0;
}
module_init(wcd9xxx_init);
static void __exit wcd9xxx_exit(void)
{
wcd9xxx_set_intf_type(WCD9XXX_INTERFACE_TYPE_PROBING);
}
module_exit(wcd9xxx_exit);
MODULE_DESCRIPTION("Codec core driver");
MODULE_VERSION("1.0");
MODULE_LICENSE("GPL v2");
Reference in New Issue View Git Blame Copy Permalink