M7350/kernel/arch/arm/mach-msm/board-msm7627a-bt.c
2024-09-09 08:52:07 +00:00

1030 lines
24 KiB
C

/* Copyright (c) 2011-2013, 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/delay.h>
#include <linux/rfkill.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/mfd/marimba.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <mach/rpc_pmapp.h>
#include <mach/socinfo.h>
#include "board-msm7627a.h"
#include "devices-msm7x2xa.h"
#if defined(CONFIG_BT) && defined(CONFIG_MARIMBA_CORE)
static struct bt_vreg_info bt_vregs[] = {
{"msme1", 2, 1800000, 1800000, 0, NULL},
{"bt", 21, 2900000, 3300000, 1, NULL}
};
static struct platform_device msm_bt_power_device = {
.name = "bt_power",
};
static unsigned bt_config_power_on[] = {
/*RFR*/
GPIO_CFG(43, 2, GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
/*CTS*/
GPIO_CFG(44, 2, GPIO_CFG_INPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
/*RX*/
GPIO_CFG(45, 2, GPIO_CFG_INPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
/*TX*/
GPIO_CFG(46, 2, GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
};
static unsigned bt_config_pcm_on[] = {
/*PCM_DOUT*/
GPIO_CFG(68, 1, GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
/*PCM_DIN*/
GPIO_CFG(69, 1, GPIO_CFG_INPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
/*PCM_SYNC*/
GPIO_CFG(70, 1, GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
/*PCM_CLK*/
GPIO_CFG(71, 1, GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
};
static unsigned bt_config_power_off[] = {
/*RFR*/
GPIO_CFG(43, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
/*CTS*/
GPIO_CFG(44, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
/*RX*/
GPIO_CFG(45, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
/*TX*/
GPIO_CFG(46, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
};
static unsigned bt_config_pcm_off[] = {
/*PCM_DOUT*/
GPIO_CFG(68, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
/*PCM_DIN*/
GPIO_CFG(69, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
/*PCM_SYNC*/
GPIO_CFG(70, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
/*PCM_CLK*/
GPIO_CFG(71, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
};
static unsigned fm_i2s_config_power_on[] = {
/*FM_I2S_SD*/
GPIO_CFG(68, 1, GPIO_CFG_INPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
/*FM_I2S_WS*/
GPIO_CFG(70, 1, GPIO_CFG_INPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
/*FM_I2S_SCK*/
GPIO_CFG(71, 1, GPIO_CFG_INPUT, GPIO_CFG_NO_PULL, GPIO_CFG_2MA),
};
static unsigned fm_i2s_config_power_off[] = {
/*FM_I2S_SD*/
GPIO_CFG(68, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
/*FM_I2S_WS*/
GPIO_CFG(70, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
/*FM_I2S_SCK*/
GPIO_CFG(71, 0, GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN, GPIO_CFG_2MA),
};
int gpio_bt_sys_rest_en = 133;
static void gpio_bt_config(void)
{
u32 socinfo = socinfo_get_platform_version();
if (machine_is_msm7627a_qrd1())
gpio_bt_sys_rest_en = 114;
if (machine_is_msm7627a_evb() || machine_is_msm8625_evb()
|| machine_is_msm8625_evt())
gpio_bt_sys_rest_en = 16;
if (machine_is_msm8625_qrd7())
gpio_bt_sys_rest_en = 88;
if (machine_is_qrd_skud_prime())
gpio_bt_sys_rest_en = 35;
if (machine_is_msm7627a_qrd3()) {
if (socinfo == 0x70002)
gpio_bt_sys_rest_en = 88;
else
gpio_bt_sys_rest_en = 85;
}
}
static int bt_set_gpio(int on)
{
int rc = 0;
struct marimba config = { .mod_id = SLAVE_ID_BAHAMA};
pr_debug("%s: Setting SYS_RST_PIN(%d) to %d\n",
__func__, gpio_bt_sys_rest_en, on);
if (on) {
if (machine_is_msm7627a_evb() || machine_is_msm8625_qrd7()) {
rc = gpio_tlmm_config(GPIO_CFG(gpio_bt_sys_rest_en, 0,
GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL,
GPIO_CFG_2MA),
GPIO_CFG_ENABLE);
gpio_set_value(gpio_bt_sys_rest_en, 1);
} else {
rc = gpio_direction_output(gpio_bt_sys_rest_en, 1);
}
msleep(100);
} else {
if (!marimba_get_fm_status(&config) &&
!marimba_get_bt_status(&config)) {
if (machine_is_msm7627a_evb() ||
machine_is_msm8625_qrd7()) {
gpio_set_value(gpio_bt_sys_rest_en, 0);
rc = gpio_tlmm_config(GPIO_CFG(
gpio_bt_sys_rest_en, 0,
GPIO_CFG_INPUT, GPIO_CFG_PULL_DOWN,
GPIO_CFG_2MA),
GPIO_CFG_ENABLE);
} else {
gpio_set_value_cansleep(gpio_bt_sys_rest_en, 0);
rc = gpio_direction_input(gpio_bt_sys_rest_en);
}
msleep(100);
}
}
if (rc)
pr_err("%s: BT sys_reset_en GPIO : Error", __func__);
return rc;
}
static struct regulator *fm_regulator;
static int fm_radio_setup(struct marimba_fm_platform_data *pdata)
{
int rc = 0;
const char *id = "FMPW";
uint32_t irqcfg;
struct marimba config = { .mod_id = SLAVE_ID_BAHAMA};
u8 value;
/* Voting for 1.8V Regulator */
fm_regulator = regulator_get(NULL , "msme1");
if (IS_ERR(fm_regulator)) {
rc = PTR_ERR(fm_regulator);
pr_err("%s: could not get regulator: %d\n", __func__, rc);
goto out;
}
/* Set the voltage level to 1.8V */
rc = regulator_set_voltage(fm_regulator, 1800000, 1800000);
if (rc < 0) {
pr_err("%s: could not set voltage: %d\n", __func__, rc);
goto reg_free;
}
/* Enabling the 1.8V regulator */
rc = regulator_enable(fm_regulator);
if (rc) {
pr_err("%s: could not enable regulator: %d\n", __func__, rc);
goto reg_free;
}
/* Voting for 19.2MHz clock */
rc = pmapp_clock_vote(id, PMAPP_CLOCK_ID_D1,
PMAPP_CLOCK_VOTE_ON);
if (rc < 0) {
pr_err("%s: clock vote failed with :(%d)\n",
__func__, rc);
goto reg_disable;
}
rc = bt_set_gpio(1);
if (rc) {
pr_err("%s: bt_set_gpio = %d", __func__, rc);
goto gpio_deconfig;
}
/*re-write FM Slave Id, after reset*/
value = BAHAMA_SLAVE_ID_FM_ADDR;
rc = marimba_write_bit_mask(&config,
BAHAMA_SLAVE_ID_FM_REG, &value, 1, 0xFF);
if (rc < 0) {
pr_err("%s: FM Slave ID rewrite Failed = %d", __func__, rc);
goto gpio_deconfig;
}
/* Configuring the FM GPIO */
irqcfg = GPIO_CFG(FM_GPIO, 0, GPIO_CFG_INPUT, GPIO_CFG_NO_PULL,
GPIO_CFG_2MA);
rc = gpio_tlmm_config(irqcfg, GPIO_CFG_ENABLE);
if (rc) {
pr_err("%s: gpio_tlmm_config(%#x)=%d\n",
__func__, irqcfg, rc);
goto gpio_deconfig;
}
return 0;
gpio_deconfig:
pmapp_clock_vote(id, PMAPP_CLOCK_ID_D1,
PMAPP_CLOCK_VOTE_OFF);
bt_set_gpio(0);
reg_disable:
regulator_disable(fm_regulator);
reg_free:
regulator_put(fm_regulator);
fm_regulator = NULL;
out:
return rc;
};
static void fm_radio_shutdown(struct marimba_fm_platform_data *pdata)
{
int rc;
const char *id = "FMPW";
/* Releasing the GPIO line used by FM */
uint32_t irqcfg = GPIO_CFG(FM_GPIO, 0, GPIO_CFG_INPUT,
GPIO_CFG_PULL_UP, GPIO_CFG_2MA);
rc = gpio_tlmm_config(irqcfg, GPIO_CFG_ENABLE);
if (rc)
pr_err("%s: gpio_tlmm_config(%#x)=%d\n",
__func__, irqcfg, rc);
/* Releasing the 1.8V Regulator */
if (!IS_ERR_OR_NULL(fm_regulator)) {
rc = regulator_disable(fm_regulator);
if (rc)
pr_err("%s: could not disable regulator: %d\n",
__func__, rc);
regulator_put(fm_regulator);
fm_regulator = NULL;
}
/* Voting off the clock */
rc = pmapp_clock_vote(id, PMAPP_CLOCK_ID_D1,
PMAPP_CLOCK_VOTE_OFF);
if (rc < 0)
pr_err("%s: voting off failed with :(%d)\n",
__func__, rc);
rc = bt_set_gpio(0);
if (rc)
pr_err("%s: bt_set_gpio = %d", __func__, rc);
}
static int switch_pcm_i2s_reg_mode(int mode)
{
unsigned char reg = 0;
int rc = -1;
unsigned char set = I2C_PIN_CTL; /*SET PIN CTL mode*/
unsigned char unset = I2C_NORMAL; /* UNSET PIN CTL MODE*/
struct marimba config = { .mod_id = SLAVE_ID_BAHAMA};
if (mode == 0) {
/* as we need to switch path to FM we need to move
BT AUX PCM lines to PIN CONTROL mode then move
FM to normal mode.*/
for (reg = BT_PCM_BCLK_MODE; reg <= BT_PCM_SYNC_MODE; reg++) {
rc = marimba_write(&config, reg, &set, 1);
if (rc < 0) {
pr_err("pcm pinctl failed = %d", rc);
goto err_all;
}
}
for (reg = FM_I2S_SD_MODE; reg <= FM_I2S_SCK_MODE; reg++) {
rc = marimba_write(&config, reg, &unset, 1);
if (rc < 0) {
pr_err("i2s normal failed = %d", rc);
goto err_all;
}
}
} else {
/* as we need to switch path to AUXPCM we need to move
FM I2S lines to PIN CONTROL mode then move
BT AUX_PCM to normal mode.*/
for (reg = FM_I2S_SD_MODE; reg <= FM_I2S_SCK_MODE; reg++) {
rc = marimba_write(&config, reg, &set, 1);
if (rc < 0) {
pr_err("i2s pinctl failed = %d", rc);
goto err_all;
}
}
for (reg = BT_PCM_BCLK_MODE; reg <= BT_PCM_SYNC_MODE; reg++) {
rc = marimba_write(&config, reg, &unset, 1);
if (rc < 0) {
pr_err("pcm normal failed = %d", rc);
goto err_all;
}
}
}
return 0;
err_all:
return rc;
}
static void config_pcm_i2s_mode(int mode)
{
void __iomem *cfg_ptr;
u8 reg2;
cfg_ptr = ioremap_nocache(FPGA_MSM_CNTRL_REG2, sizeof(char));
if (!cfg_ptr)
return;
if (mode) {
/*enable the pcm mode in FPGA*/
reg2 = readb_relaxed(cfg_ptr);
if (reg2 == 0) {
reg2 = 1;
writeb_relaxed(reg2, cfg_ptr);
}
} else {
/*enable i2s mode in FPGA*/
reg2 = readb_relaxed(cfg_ptr);
if (reg2 == 1) {
reg2 = 0;
writeb_relaxed(reg2, cfg_ptr);
}
}
iounmap(cfg_ptr);
}
static int config_i2s(int mode)
{
int pin, rc = 0;
if (mode == FM_I2S_ON) {
if (machine_is_msm7x27a_surf() || machine_is_msm7625a_surf()
|| machine_is_msm8625_surf())
config_pcm_i2s_mode(0);
pr_err("%s mode = FM_I2S_ON", __func__);
rc = switch_pcm_i2s_reg_mode(0);
if (rc) {
pr_err("switch mode failed");
return rc;
}
for (pin = 0; pin < ARRAY_SIZE(fm_i2s_config_power_on);
pin++) {
rc = gpio_tlmm_config(
fm_i2s_config_power_on[pin],
GPIO_CFG_ENABLE
);
if (rc < 0)
return rc;
}
} else if (mode == FM_I2S_OFF) {
pr_err("%s mode = FM_I2S_OFF", __func__);
rc = switch_pcm_i2s_reg_mode(1);
if (rc) {
pr_err("switch mode failed");
return rc;
}
for (pin = 0; pin < ARRAY_SIZE(fm_i2s_config_power_off);
pin++) {
rc = gpio_tlmm_config(
fm_i2s_config_power_off[pin],
GPIO_CFG_ENABLE
);
if (rc < 0)
return rc;
}
}
return rc;
}
static int config_pcm(int mode)
{
int pin, rc = 0;
if (mode == BT_PCM_ON) {
if (machine_is_msm7x27a_surf() || machine_is_msm7625a_surf()
|| machine_is_msm8625_surf())
config_pcm_i2s_mode(1);
pr_err("%s mode =BT_PCM_ON", __func__);
rc = switch_pcm_i2s_reg_mode(1);
if (rc) {
pr_err("switch mode failed");
return rc;
}
for (pin = 0; pin < ARRAY_SIZE(bt_config_pcm_on);
pin++) {
rc = gpio_tlmm_config(bt_config_pcm_on[pin],
GPIO_CFG_ENABLE);
if (rc < 0)
return rc;
}
} else if (mode == BT_PCM_OFF) {
pr_err("%s mode =BT_PCM_OFF", __func__);
rc = switch_pcm_i2s_reg_mode(0);
if (rc) {
pr_err("switch mode failed");
return rc;
}
for (pin = 0; pin < ARRAY_SIZE(bt_config_pcm_off);
pin++) {
rc = gpio_tlmm_config(bt_config_pcm_off[pin],
GPIO_CFG_ENABLE);
if (rc < 0)
return rc;
}
}
return rc;
}
static int msm_bahama_setup_pcm_i2s(int mode)
{
int fm_state = 0, bt_state = 0;
int rc = 0;
struct marimba config = { .mod_id = SLAVE_ID_BAHAMA};
fm_state = marimba_get_fm_status(&config);
bt_state = marimba_get_bt_status(&config);
switch (mode) {
case BT_PCM_ON:
case BT_PCM_OFF:
if (!fm_state)
rc = config_pcm(mode);
break;
case FM_I2S_ON:
rc = config_i2s(mode);
break;
case FM_I2S_OFF:
if (bt_state)
rc = config_pcm(BT_PCM_ON);
else
rc = config_i2s(mode);
break;
default:
rc = -EIO;
pr_err("%s:Unsupported mode", __func__);
}
return rc;
}
static int bahama_bt(int on)
{
int rc = 0;
int i;
struct marimba config = { .mod_id = SLAVE_ID_BAHAMA};
struct bahama_variant_register {
const size_t size;
const struct bahama_config_register *set;
};
const struct bahama_config_register *p;
int version;
const struct bahama_config_register v10_bt_on[] = {
{ 0xE9, 0x00, 0xFF },
{ 0xF4, 0x80, 0xFF },
{ 0xE4, 0x00, 0xFF },
{ 0xE5, 0x00, 0x0F },
#ifdef CONFIG_WLAN
{ 0xE6, 0x38, 0x7F },
{ 0xE7, 0x06, 0xFF },
#endif
{ 0xE9, 0x21, 0xFF },
{ 0x01, 0x0C, 0x1F },
{ 0x01, 0x08, 0x1F },
};
const struct bahama_config_register v20_bt_on_fm_off[] = {
{ 0x11, 0x0C, 0xFF },
{ 0x13, 0x01, 0xFF },
{ 0xF4, 0x80, 0xFF },
{ 0xF0, 0x00, 0xFF },
{ 0xE9, 0x00, 0xFF },
#ifdef CONFIG_WLAN
{ 0x81, 0x00, 0x7F },
{ 0x82, 0x00, 0xFF },
{ 0xE6, 0x38, 0x7F },
{ 0xE7, 0x06, 0xFF },
#endif
{ 0x8E, 0x15, 0xFF },
{ 0x8F, 0x15, 0xFF },
{ 0x90, 0x15, 0xFF },
{ 0xE9, 0x21, 0xFF },
};
const struct bahama_config_register v20_bt_on_fm_on[] = {
{ 0x11, 0x0C, 0xFF },
{ 0x13, 0x01, 0xFF },
{ 0xF4, 0x86, 0xFF },
{ 0xF0, 0x06, 0xFF },
{ 0xE9, 0x00, 0xFF },
#ifdef CONFIG_WLAN
{ 0x81, 0x00, 0x7F },
{ 0x82, 0x00, 0xFF },
{ 0xE6, 0x38, 0x7F },
{ 0xE7, 0x06, 0xFF },
#endif
{ 0xE9, 0x21, 0xFF },
};
const struct bahama_config_register v10_bt_off[] = {
{ 0xE9, 0x00, 0xFF },
};
const struct bahama_config_register v20_bt_off_fm_off[] = {
{ 0xF4, 0x84, 0xFF },
{ 0xF0, 0x04, 0xFF },
{ 0xE9, 0x00, 0xFF }
};
const struct bahama_config_register v20_bt_off_fm_on[] = {
{ 0xF4, 0x86, 0xFF },
{ 0xF0, 0x06, 0xFF },
{ 0xE9, 0x00, 0xFF }
};
const struct bahama_variant_register bt_bahama[2][3] = {
{
{ ARRAY_SIZE(v10_bt_off), v10_bt_off },
{ ARRAY_SIZE(v20_bt_off_fm_off), v20_bt_off_fm_off },
{ ARRAY_SIZE(v20_bt_off_fm_on), v20_bt_off_fm_on }
},
{
{ ARRAY_SIZE(v10_bt_on), v10_bt_on },
{ ARRAY_SIZE(v20_bt_on_fm_off), v20_bt_on_fm_off },
{ ARRAY_SIZE(v20_bt_on_fm_on), v20_bt_on_fm_on }
}
};
u8 offset = 0; /* index into bahama configs */
on = on ? 1 : 0;
version = marimba_read_bahama_ver(&config);
if (version < 0 || version == BAHAMA_VER_UNSUPPORTED) {
dev_err(&msm_bt_power_device.dev, "%s : Bahama "
"version read Error, version = %d\n",
__func__, version);
return -EIO;
}
if (version == BAHAMA_VER_2_0) {
if (marimba_get_fm_status(&config))
offset = 0x01;
}
p = bt_bahama[on][version + offset].set;
dev_info(&msm_bt_power_device.dev,
"%s: found version %d\n", __func__, version);
for (i = 0; i < bt_bahama[on][version + offset].size; i++) {
u8 value = (p+i)->value;
rc = marimba_write_bit_mask(&config,
(p+i)->reg,
&value,
sizeof((p+i)->value),
(p+i)->mask);
if (rc < 0) {
dev_err(&msm_bt_power_device.dev,
"%s: reg %x write failed: %d\n",
__func__, (p+i)->reg, rc);
return rc;
}
dev_dbg(&msm_bt_power_device.dev,
"%s: reg 0x%02x write value 0x%02x mask 0x%02x\n",
__func__, (p+i)->reg,
value, (p+i)->mask);
value = 0;
/* Ignoring the read failure as it is only for check */
if (marimba_read_bit_mask(&config,
(p+i)->reg, &value,
sizeof((p+i)->value), (p+i)->mask) < 0)
dev_err(&msm_bt_power_device.dev,
"%s marimba_read_bit_mask- error",
__func__);
dev_dbg(&msm_bt_power_device.dev,
"%s: reg 0x%02x read value 0x%02x mask 0x%02x\n",
__func__, (p+i)->reg,
value, (p+i)->mask);
}
/* Update BT Status */
if (on)
marimba_set_bt_status(&config, true);
else
marimba_set_bt_status(&config, false);
return rc;
}
static int bluetooth_switch_regulators(int on)
{
int i, rc = 0;
const char *id = "BTPW";
for (i = 0; i < ARRAY_SIZE(bt_vregs); i++) {
if (IS_ERR_OR_NULL(bt_vregs[i].reg)) {
bt_vregs[i].reg =
regulator_get(&msm_bt_power_device.dev,
bt_vregs[i].name);
if (IS_ERR(bt_vregs[i].reg)) {
rc = PTR_ERR(bt_vregs[i].reg);
dev_err(&msm_bt_power_device.dev,
"%s: could not get regulator %s: %d\n",
__func__, bt_vregs[i].name, rc);
goto reg_disable;
}
}
rc = on ? regulator_set_voltage(bt_vregs[i].reg,
bt_vregs[i].min_level,
bt_vregs[i].max_level) : 0;
if (rc) {
dev_err(&msm_bt_power_device.dev,
"%s: could not set voltage for %s: %d\n",
__func__, bt_vregs[i].name, rc);
goto reg_disable;
}
rc = on ? regulator_enable(bt_vregs[i].reg) : 0;
if (rc) {
dev_err(&msm_bt_power_device.dev,
"%s: could not %sable regulator %s: %d\n",
__func__, "en", bt_vregs[i].name, rc);
goto reg_disable;
}
if (bt_vregs[i].is_pin_controlled) {
rc = pmapp_vreg_lpm_pincntrl_vote(id,
bt_vregs[i].pmapp_id,
PMAPP_CLOCK_ID_D1,
on ? PMAPP_CLOCK_VOTE_ON :
PMAPP_CLOCK_VOTE_OFF);
if (rc) {
dev_err(&msm_bt_power_device.dev,
"%s: pin control failed for %s: %d\n",
__func__, bt_vregs[i].name, rc);
goto pin_cnt_fail;
}
}
rc = on ? 0 : regulator_disable(bt_vregs[i].reg);
if (rc) {
dev_err(&msm_bt_power_device.dev,
"%s: could not %sable regulator %s: %d\n",
__func__, "dis", bt_vregs[i].name, rc);
}
}
return rc;
pin_cnt_fail:
if (on)
regulator_disable(bt_vregs[i].reg);
reg_disable:
if (on) {
while (i) {
i--;
regulator_disable(bt_vregs[i].reg);
regulator_put(bt_vregs[i].reg);
bt_vregs[i].reg = NULL;
}
}
return rc;
}
static struct regulator *reg_s3;
static unsigned int msm_bahama_setup_power(void)
{
int rc = 0;
reg_s3 = regulator_get(NULL, "msme1");
if (IS_ERR(reg_s3)) {
rc = PTR_ERR(reg_s3);
pr_err("%s: could not get regulator: %d\n", __func__, rc);
goto out;
}
rc = regulator_set_voltage(reg_s3, 1800000, 1800000);
if (rc < 0) {
pr_err("%s: could not set voltage: %d\n", __func__, rc);
goto reg_fail;
}
rc = regulator_enable(reg_s3);
if (rc < 0) {
pr_err("%s: could not enable regulator: %d\n", __func__, rc);
goto reg_fail;
}
gpio_tlmm_config(GPIO_CFG(gpio_bt_sys_rest_en, 0,
GPIO_CFG_OUTPUT, GPIO_CFG_NO_PULL,
GPIO_CFG_2MA), GPIO_CFG_ENABLE);
/*setup Bahama_sys_reset_n*/
rc = gpio_request(gpio_bt_sys_rest_en, "bahama sys_rst_n");
if (rc < 0) {
pr_err("%s: gpio_request %d = %d\n", __func__,
gpio_bt_sys_rest_en, rc);
goto reg_disable;
}
rc = bt_set_gpio(1);
if (rc < 0) {
pr_err("%s: bt_set_gpio %d = %d\n", __func__,
gpio_bt_sys_rest_en, rc);
goto gpio_fail;
}
return rc;
gpio_fail:
gpio_free(gpio_bt_sys_rest_en);
reg_disable:
regulator_disable(reg_s3);
reg_fail:
regulator_put(reg_s3);
out:
reg_s3 = NULL;
return rc;
}
static unsigned int msm_bahama_shutdown_power(int value)
{
int rc = 0;
if (IS_ERR_OR_NULL(reg_s3)) {
rc = reg_s3 ? PTR_ERR(reg_s3) : -ENODEV;
goto out;
}
rc = regulator_disable(reg_s3);
if (rc) {
pr_err("%s: could not disable regulator: %d\n", __func__, rc);
goto out;
}
if (value == BAHAMA_ID) {
rc = bt_set_gpio(0);
if (rc) {
pr_err("%s: bt_set_gpio = %d\n",
__func__, rc);
goto reg_enable;
}
gpio_free(gpio_bt_sys_rest_en);
}
regulator_put(reg_s3);
reg_s3 = NULL;
return 0;
reg_enable:
regulator_enable(reg_s3);
out:
return rc;
}
static unsigned int msm_bahama_core_config(int type)
{
int rc = 0;
if (type == BAHAMA_ID) {
int i;
struct marimba config = { .mod_id = SLAVE_ID_BAHAMA};
const struct bahama_config_register v20_init[] = {
/* reg, value, mask */
{ 0xF4, 0x84, 0xFF }, /* AREG */
{ 0xF0, 0x04, 0xFF } /* DREG */
};
if (marimba_read_bahama_ver(&config) == BAHAMA_VER_2_0) {
for (i = 0; i < ARRAY_SIZE(v20_init); i++) {
u8 value = v20_init[i].value;
rc = marimba_write_bit_mask(&config,
v20_init[i].reg,
&value,
sizeof(v20_init[i].value),
v20_init[i].mask);
if (rc < 0) {
pr_err("%s: reg %d write failed: %d\n",
__func__, v20_init[i].reg, rc);
return rc;
}
pr_debug("%s: reg 0x%02x value 0x%02x"
" mask 0x%02x\n",
__func__, v20_init[i].reg,
v20_init[i].value, v20_init[i].mask);
}
}
}
rc = bt_set_gpio(0);
if (rc) {
pr_err("%s: bt_set_gpio = %d\n",
__func__, rc);
}
pr_debug("core type: %d\n", type);
return rc;
}
static int bluetooth_power(int on)
{
int pin, rc = 0;
const char *id = "BTPW";
int cid = 0;
int bt_state = 0;
struct marimba config = { .mod_id = SLAVE_ID_BAHAMA};
pr_debug("%s: on = %d\n", __func__, on);
cid = adie_get_detected_connectivity_type();
if (cid != BAHAMA_ID) {
pr_err("%s: unexpected adie connectivity type: %d\n",
__func__, cid);
return -ENODEV;
}
if (on) {
/*setup power for BT SOC*/
rc = bt_set_gpio(on);
if (rc) {
pr_err("%s: bt_set_gpio = %d\n",
__func__, rc);
goto exit;
}
rc = bluetooth_switch_regulators(on);
if (rc < 0) {
pr_err("%s: bluetooth_switch_regulators rc = %d",
__func__, rc);
goto fail_gpio;
}
/*setup BT GPIO lines*/
for (pin = 0; pin < ARRAY_SIZE(bt_config_power_on);
pin++) {
rc = gpio_tlmm_config(bt_config_power_on[pin],
GPIO_CFG_ENABLE);
if (rc < 0) {
pr_err("%s: gpio_tlmm_config(%#x)=%d\n",
__func__,
bt_config_power_on[pin],
rc);
goto fail_power;
}
}
/*Setup BT clocks*/
rc = pmapp_clock_vote(id, PMAPP_CLOCK_ID_D1,
PMAPP_CLOCK_VOTE_ON);
if (rc < 0) {
pr_err("Failed to vote for TCXO_D1 ON\n");
goto fail_gpio_cfg;
}
msleep(20);
/*I2C config for Bahama*/
rc = bahama_bt(1);
if (rc < 0) {
pr_err("%s: bahama_bt rc = %d", __func__, rc);
goto fail_clock;
}
msleep(20);
/*setup BT PCM lines*/
rc = msm_bahama_setup_pcm_i2s(BT_PCM_ON);
if (rc < 0) {
pr_err("%s: msm_bahama_setup_pcm_i2s , rc =%d\n",
__func__, rc);
goto fail_i2c;
}
rc = pmapp_clock_vote(id, PMAPP_CLOCK_ID_D1,
PMAPP_CLOCK_VOTE_PIN_CTRL);
if (rc < 0)
pr_err("%s:Pin Control Failed, rc = %d",
__func__, rc);
} else {
bt_state = marimba_get_bt_status(&config);
if (!bt_state) {
pr_err("%s: BT is already turned OFF.\n", __func__);
return 0;
}
rc = msm_bahama_setup_pcm_i2s(BT_PCM_OFF);
if (rc < 0) {
pr_err("%s: msm_bahama_setup_pcm_i2s, rc =%d\n",
__func__, rc);
}
fail_i2c:
rc = bahama_bt(0);
if (rc < 0)
pr_err("%s: bahama_bt rc = %d", __func__, rc);
fail_clock:
rc = pmapp_clock_vote(id, PMAPP_CLOCK_ID_D1,
PMAPP_CLOCK_VOTE_OFF);
if (rc < 0)
pr_err("%s: Failed to vote Off D1\n", __func__);
fail_gpio_cfg:
for (pin = 0; pin < ARRAY_SIZE(bt_config_power_off);
pin++) {
rc = gpio_tlmm_config(bt_config_power_off[pin],
GPIO_CFG_ENABLE);
if (rc < 0) {
pr_err("%s:"
" gpio_tlmm_config(%#x)=%d\n",
__func__,
bt_config_power_off[pin], rc);
}
}
fail_power:
rc = bluetooth_switch_regulators(0);
if (rc < 0) {
pr_err("%s: switch_regulators : rc = %d",\
__func__, rc);
}
fail_gpio:
rc = bt_set_gpio(0);
if (rc) {
pr_err("%s: bt_set_gpio = %d\n",
__func__, rc);
goto exit;
}
}
return rc;
exit:
pr_err("%s: failed with rc = %d", __func__, rc);
return rc;
}
static struct marimba_fm_platform_data marimba_fm_pdata = {
.fm_setup = fm_radio_setup,
.fm_shutdown = fm_radio_shutdown,
.irq = MSM_GPIO_TO_INT(FM_GPIO),
.vreg_s2 = NULL,
.vreg_xo_out = NULL,
/* Configuring the FM SoC as I2S Master */
.is_fm_soc_i2s_master = true,
.config_i2s_gpio = msm_bahama_setup_pcm_i2s,
};
static struct marimba_platform_data marimba_pdata = {
.slave_id[SLAVE_ID_BAHAMA_FM] = BAHAMA_SLAVE_ID_FM_ADDR,
.slave_id[SLAVE_ID_BAHAMA_QMEMBIST] = BAHAMA_SLAVE_ID_QMEMBIST_ADDR,
.bahama_setup = msm_bahama_setup_power,
.bahama_shutdown = msm_bahama_shutdown_power,
.bahama_core_config = msm_bahama_core_config,
.fm = &marimba_fm_pdata,
};
static struct i2c_board_info bahama_devices[] = {
{
I2C_BOARD_INFO("marimba", 0xc),
.platform_data = &marimba_pdata,
},
};
void __init msm7627a_bt_power_init(void)
{
int i, rc = 0;
struct device *dev;
gpio_bt_config();
rc = i2c_register_board_info(MSM_GSBI1_QUP_I2C_BUS_ID,
bahama_devices,
ARRAY_SIZE(bahama_devices));
if (rc < 0) {
pr_err("%s: I2C Register failed\n", __func__);
return;
}
rc = platform_device_register(&msm_bt_power_device);
if (rc < 0) {
pr_err("%s: device register failed\n", __func__);
return;
}
dev = &msm_bt_power_device.dev;
for (i = 0; i < ARRAY_SIZE(bt_vregs); i++) {
bt_vregs[i].reg = regulator_get(dev, bt_vregs[i].name);
if (IS_ERR(bt_vregs[i].reg)) {
rc = PTR_ERR(bt_vregs[i].reg);
dev_err(dev, "%s: could not get regulator %s: %d\n",
__func__, bt_vregs[i].name, rc);
goto reg_get_fail;
}
}
dev->platform_data = &bluetooth_power;
return;
reg_get_fail:
while (i--) {
regulator_put(bt_vregs[i].reg);
bt_vregs[i].reg = NULL;
}
platform_device_unregister(&msm_bt_power_device);
}
#endif