/* TODO: remove this function later */
static int max8997_enable_charging_x(struct chg_data *chg, int charge_type)
{
struct i2c_client *i2c = chg->max8997->i2c;
int ret;
u8 val, mask;
/* enable charging */
if (charge_type == POWER_SUPPLY_CHARGE_TYPE_FAST) {
/* ac */
dev_info(chg->dev, "%s: TA charging", __func__);
/* set fast charging current : 650mA */
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
(9 << MBCICHFC_SHIFT), MBCICHFC_MASK);
if (ret)
goto err;
} else if (charge_type == POWER_SUPPLY_CHARGE_TYPE_TRICKLE) {
/* usb */
dev_info(chg->dev, "%s: USB charging", __func__);
/* set fast charging current : 450mA */
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
(5 << MBCICHFC_SHIFT), MBCICHFC_MASK);
if (ret)
goto err;
} else {
dev_err(chg->dev, "%s: invalid arg\n", __func__);
ret = -EINVAL;
goto err;
}
/* set auto stop disable */
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL6,
(0 << AUTOSTOP_SHIFT), AUTOSTOP_MASK);
if (ret)
goto err;
/* set fast charging enable and main battery charging enable */
val = (1 << MBCHOSTEN_SHIFT) | (1 << VCHGR_FC_SHIFT);
mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, val, mask);
if (ret)
goto err;
return 0;
err:
dev_err(chg->dev, "%s: max8997 update reg error!(%d)\n", __func__, ret);
return ret;
}
static int max8997_muic_handle_dock(struct max8997_muic_info *info,
int adc, bool attached)
{
struct max8997_muic_platform_data *mdata = info->muic_pdata;
int ret = 0;
ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
attached ? MAX8997_SW_AUDIO : MAX8997_SW_OPEN,
SW_MASK);
if (ret) {
dev_err(info->dev, "failed to update muic register\n");
goto out;
}
switch (adc) {
case MAX8997_ADC_DESKDOCK:
if (mdata->deskdock_callback)
mdata->deskdock_callback(attached);
break;
case MAX8997_ADC_CARDOCK:
if (mdata->cardock_callback)
mdata->cardock_callback(attached);
break;
default:
break;
}
out:
return ret;
}
/*
* max8997_muic_set_debounce_time - Set the debounce time of ADC
* @info: the instance including private data of max8997 MUIC
* @time: the debounce time of ADC
*/
static int max8997_muic_set_debounce_time(struct max8997_muic_info *info,
enum max8997_muic_adc_debounce_time time)
{
int ret;
switch (time) {
case ADC_DEBOUNCE_TIME_0_5MS:
case ADC_DEBOUNCE_TIME_10MS:
case ADC_DEBOUNCE_TIME_25MS:
case ADC_DEBOUNCE_TIME_38_62MS:
ret = max8997_update_reg(info->muic,
MAX8997_MUIC_REG_CONTROL3,
time << CONTROL3_ADCDBSET_SHIFT,
CONTROL3_ADCDBSET_MASK);
if (ret) {
dev_err(info->dev, "failed to set ADC debounce time\n");
return ret;
}
break;
default:
dev_err(info->dev, "invalid ADC debounce time\n");
return -EINVAL;
}
return 0;
};
static ssize_t max8997_muic_set_audio_path(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max8997_muic_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->muic;
u8 cntl1_val, cntl1_msk;
u8 val;
if (!strncmp(buf, "0", 1))
val = 0;
else if (!strncmp(buf, "1", 1))
val = 2;
else {
dev_warn(info->dev, "%s: Wrong command\n", __func__);
return count;
}
cntl1_val = (val << COMN1SW_SHIFT) | (val << COMP2SW_SHIFT) |
(0 << MICEN_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK | MICEN_MASK;
max8997_update_reg(client, MAX8997_MUIC_REG_CTRL1, cntl1_val,
cntl1_msk);
cntl1_val = 0;
max8997_read_reg(client, MAX8997_MUIC_REG_CTRL1, &cntl1_val);
dev_info(info->dev, "%s: CNTL1(0x%02x)\n", __func__, cntl1_val);
return count;
}
static void max8997_rtc_enable_smpl(struct max8997_rtc_info *info, bool enable)
{
int ret;
u8 val, mask;
if (!smpl_en)
return;
if (enable)
val = (1 << SMPL_EN_SHIFT) | (0 << SMPLT_SHIFT);
else
val = 0;
mask = SMPL_EN_MASK | SMPLT_MASK;
dev_info(info->dev, "%s: %s SMPL\n", __func__,
enable ? "enable" : "disable");
ret = max8997_update_reg(info->rtc, MAX8997_RTC_WTSR_SMPL, val, mask);
if (ret < 0) {
dev_err(info->dev, "%s: fail to update SMPL reg(%d)\n",
__func__, ret);
return;
}
max8997_rtc_set_update_reg(info);
val = 0;
max8997_read_reg(info->rtc, MAX8997_RTC_WTSR_SMPL, &val);
pr_info("%s: WTSR_SMPL(0x%02x)\n", __func__, val);
}
static void max8997_rtc_enable_wtsr(struct max8997_rtc_info *info, bool enable)
{
int ret;
u8 val, mask;
if (!wtsr_en)
return;
if (enable)
val = (1 << WTSR_EN_SHIFT) | (3 << WTSRT_SHIFT);
else
val = 0;
mask = WTSR_EN_MASK | WTSRT_MASK;
dev_info(info->dev, "%s: %s WTSR\n", __func__,
enable ? "enable" : "disable");
ret = max8997_update_reg(info->rtc, MAX8997_RTC_WTSR_SMPL, val, mask);
if (ret < 0) {
dev_err(info->dev, "%s: fail to update WTSR reg(%d)\n",
__func__, ret);
return;
}
max8997_rtc_set_update_reg(info);
}
static void max8997_led_set_current(struct max8997_led *led,
enum led_brightness value)
{
int ret;
struct i2c_client *client = led->iodev->i2c;
u8 val = 0, mask = 0, reg = 0;
switch (led->led_mode) {
case MAX8997_FLASH_MODE:
case MAX8997_FLASH_PIN_CONTROL_MODE:
val = value << MAX8997_LED_FLASH_SHIFT;
mask = MAX8997_LED_FLASH_CUR_MASK;
reg = led->id ? MAX8997_REG_FLASH2_CUR : MAX8997_REG_FLASH1_CUR;
break;
case MAX8997_MOVIE_MODE:
case MAX8997_MOVIE_PIN_CONTROL_MODE:
val = value << MAX8997_LED_MOVIE_SHIFT;
mask = MAX8997_LED_MOVIE_CUR_MASK;
reg = MAX8997_REG_MOVIE_CUR;
break;
default:
break;
}
if (mask) {
ret = max8997_update_reg(client, reg, val, mask);
if (ret)
dev_err(led->iodev->dev,
"failed to update register(%d)\n", ret);
}
}
static ssize_t max8997_muic_set_otg_test(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct max8997_muic_info *info = dev_get_drvdata(dev);
struct i2c_client *client = info->muic;
u8 val;
if (!strncmp(buf, "0", 1))
val = 0;
else if (!strncmp(buf, "1", 1))
val = 1;
else {
dev_warn(info->dev, "%s: Wrong command\n", __func__);
return count;
}
max8997_update_reg(client, MAX8997_MUIC_REG_CDETCTRL,
val << CHGDETEN_SHIFT, CHGDETEN_MASK);
val = 0;
max8997_read_reg(client, MAX8997_MUIC_REG_CDETCTRL, &val);
dev_info(info->dev, "%s: CDETCTRL(0x%02x)\n", __func__, val);
return count;
}
static int max8997_disable_charging(struct chg_data *chg)
{
struct i2c_client *i2c = chg->max8997->i2c;
int ret;
u8 mask;
dev_info(chg->dev, "%s: disable charging\n", __func__);
mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, 0, mask);
if (ret < 0)
dev_err(chg->dev, "%s: fail update reg!!!\n", __func__);
return ret;
}
static int max8997_enable_charging(struct chg_data *chg)
{
struct i2c_client *i2c = chg->max8997->i2c;
int ret;
u8 val, mask;
/* set auto stop disable */
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL6,
(0 << AUTOSTOP_SHIFT), AUTOSTOP_MASK);
if (ret)
dev_err(chg->dev, "%s: failt to disable autostop(%d)\n",
__func__, ret);
/* set fast charging enable and main battery charging enable */
val = (1 << MBCHOSTEN_SHIFT) | (1 << VCHGR_FC_SHIFT);
mask = MBCHOSTEN_MASK | VCHGR_FC_MASK;
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL2, val, mask);
if (ret)
dev_err(chg->dev, "%s: failt to enable charging(%d)\n",
__func__, ret);
return ret;
}
/*
* max8997_muic_set_path - Set hardware line according to attached cable
* @info: the instance including private data of max8997 MUIC
* @value: the path according to attached cable
* @attached: the state of cable (true:attached, false:detached)
*
* The max8997 MUIC device share outside H/W line among a varity of cables,
* so this function set internal path of H/W line according to the type of
* attached cable.
*/
static int max8997_muic_set_path(struct max8997_muic_info *info,
u8 val, bool attached)
{
int ret = 0;
u8 ctrl1, ctrl2 = 0;
if (attached)
ctrl1 = val;
else
ctrl1 = CONTROL1_SW_OPEN;
ret = max8997_update_reg(info->muic,
MAX8997_MUIC_REG_CONTROL1, ctrl1, COMP_SW_MASK);
if (ret < 0) {
dev_err(info->dev, "failed to update MUIC register\n");
return ret;
}
if (attached)
ctrl2 |= CONTROL2_CPEN_MASK; /* LowPwr=0, CPEn=1 */
else
ctrl2 |= CONTROL2_LOWPWR_MASK; /* LowPwr=1, CPEn=0 */
ret = max8997_update_reg(info->muic,
MAX8997_MUIC_REG_CONTROL2, ctrl2,
CONTROL2_LOWPWR_MASK | CONTROL2_CPEN_MASK);
if (ret < 0) {
dev_err(info->dev, "failed to update MUIC register\n");
return ret;
}
dev_info(info->dev,
"CONTROL1 : 0x%02x, CONTROL2 : 0x%02x, state : %s\n",
ctrl1, ctrl2, attached ? "attached" : "detached");
return 0;
}
static void max8997_led_set_mode(struct max8997_led *led,
enum max8997_led_mode mode)
{
int ret;
struct i2c_client *client = led->iodev->i2c;
u8 mask = 0, val;
switch (mode) {
case MAX8997_FLASH_MODE:
mask = MAX8997_LED1_FLASH_MASK | MAX8997_LED0_FLASH_MASK;
val = led->id ?
MAX8997_LED1_FLASH_MASK : MAX8997_LED0_FLASH_MASK;
led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS;
break;
case MAX8997_MOVIE_MODE:
mask = MAX8997_LED1_MOVIE_MASK | MAX8997_LED0_MOVIE_MASK;
val = led->id ?
MAX8997_LED1_MOVIE_MASK : MAX8997_LED0_MOVIE_MASK;
led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS;
break;
case MAX8997_FLASH_PIN_CONTROL_MODE:
mask = MAX8997_LED1_FLASH_PIN_MASK |
MAX8997_LED0_FLASH_PIN_MASK;
val = led->id ?
MAX8997_LED1_FLASH_PIN_MASK : MAX8997_LED0_FLASH_PIN_MASK;
led->cdev.max_brightness = MAX8997_LED_FLASH_MAX_BRIGHTNESS;
break;
case MAX8997_MOVIE_PIN_CONTROL_MODE:
mask = MAX8997_LED1_MOVIE_PIN_MASK |
MAX8997_LED0_MOVIE_PIN_MASK;
val = led->id ?
MAX8997_LED1_MOVIE_PIN_MASK : MAX8997_LED0_MOVIE_PIN_MASK;
led->cdev.max_brightness = MAX8997_LED_MOVIE_MAX_BRIGHTNESS;
break;
default:
led->cdev.max_brightness = MAX8997_LED_NONE_MAX_BRIGHTNESS;
break;
}
if (mask) {
ret = max8997_update_reg(client, MAX8997_REG_LEN_CNTL, val,
mask);
if (ret)
dev_err(led->iodev->dev,
"failed to update register(%d)\n", ret);
}
led->led_mode = mode;
}
static int max8997_chg_set_property(struct power_supply *psy,
enum power_supply_property psp,
const union power_supply_propval *val)
{
int ret, reg_val;
struct chg_data *chg = container_of(psy, struct chg_data, psy_bat);
struct i2c_client *i2c = chg->max8997->i2c;
switch (psp) {
case POWER_SUPPLY_PROP_CHARGE_TYPE: /* TODO: remove this */
if (val->intval == POWER_SUPPLY_CHARGE_TYPE_NONE)
ret = max8997_disable_charging(chg);
else
ret = max8997_enable_charging_x(chg, val->intval);
break;
case POWER_SUPPLY_PROP_CURRENT_NOW: /* Set charging current */
ret = max8997_set_charging_current(chg, val->intval);
break;
case POWER_SUPPLY_PROP_STATUS: /* Enable/Disable charging */
if (val->intval == POWER_SUPPLY_STATUS_CHARGING)
ret = max8997_enable_charging(chg);
else
ret = max8997_disable_charging(chg);
break;
case POWER_SUPPLY_PROP_CHARGE_FULL: /* Set recharging current */
if (val->intval < 50 || val->intval > 200) {
dev_err(chg->dev, "%s: invalid topoff current(%d)\n",
__func__, val->intval);
return -EINVAL;
}
reg_val = (val->intval - 50) / 10;
dev_info(chg->dev, "%s: Set toppoff current to 0x%x\n",
__func__, reg_val);
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL5,
(reg_val << ITOPOFF_SHIFT), ITOPOFF_MASK);
if (ret) {
dev_err(chg->dev, "%s: max8997 update reg error(%d)\n",
__func__, ret);
return ret;
}
break;
default:
return -EINVAL;
}
return ret;
}
static void max8997_muic_handle_jig_uart(struct max8997_muic_info *info,
u8 vbvolt)
{
struct max8997_muic_data *mdata = info->muic_data;
enum cable_type prev_ct = info->cable_type;
bool is_otgtest = false;
u8 cntl1_val, cntl1_msk;
dev_info(info->dev, "%s: JIG UART/BOOTOFF(0x%x)\n", __func__, vbvolt);
#if defined(CONFIG_SEC_MODEM_M0_TD)
gpio_set_value(GPIO_AP_CP_INT1, 1);
#endif
/* UT1, UR2 */
cntl1_val = (3 << COMN1SW_SHIFT) | (3 << COMP2SW_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK;
max8997_update_reg(info->muic, MAX8997_MUIC_REG_CTRL1, cntl1_val,
cntl1_msk);
if (vbvolt & STATUS2_VBVOLT_MASK) {
if (mdata->host_notify_cb) {
if (mdata->host_notify_cb(1) == NOTIFY_TEST_MODE) {
is_otgtest = true;
dev_info(info->dev, "%s: OTG TEST\n", __func__);
}
}
info->cable_type = CABLE_TYPE_JIG_UART_OFF_VB;
max8997_muic_set_charging_type(info, is_otgtest);
} else {
info->cable_type = CABLE_TYPE_JIG_UART_OFF;
#if 0
if (mdata->uart_path == UART_PATH_CP &&
mdata->jig_uart_cb)
mdata->jig_uart_cb(UART_PATH_CP);
#endif
if (prev_ct == CABLE_TYPE_JIG_UART_OFF_VB) {
max8997_muic_set_charging_type(info, false);
if (mdata->host_notify_cb)
mdata->host_notify_cb(0);
}
}
}
static void max8997_led_enable(struct max8997_led *led, bool enable)
{
int ret;
struct i2c_client *client = led->iodev->i2c;
u8 val = 0, mask = MAX8997_LED_BOOST_ENABLE_MASK;
if (led->enabled == enable)
return;
val = enable ? MAX8997_LED_BOOST_ENABLE_MASK : 0;
ret = max8997_update_reg(client, MAX8997_REG_BOOST_CNTL, val, mask);
if (ret)
dev_err(led->iodev->dev,
"failed to update register(%d)\n", ret);
led->enabled = enable;
}
static int max8997_muic_handle_jig_uart(struct max8997_muic_info *info,
bool attached)
{
struct max8997_muic_platform_data *mdata = info->muic_pdata;
int ret = 0;
ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
attached ? MAX8997_SW_UART : MAX8997_SW_OPEN,
SW_MASK);
if (ret) {
dev_err(info->dev, "failed to update muic register\n");
goto out;
}
if (mdata->uart_callback)
mdata->uart_callback(attached);
out:
return ret;
}
static int max8997_set_charging_current(struct chg_data *chg, int chg_current)
{
struct i2c_client *i2c = chg->max8997->i2c;
int ret;
u8 val;
if (chg_current < 200 || chg_current > 950)
return -EINVAL;
val = ((chg_current - 200) / 50) & 0xf;
dev_info(chg->dev, "%s: charging current=%d", __func__, chg_current);
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL4,
(val << MBCICHFC_SHIFT), MBCICHFC_MASK);
if (ret)
dev_err(chg->dev, "%s: fail to write chg current(%d)\n",
__func__, ret);
return ret;
}
void max8997_muic_shutdown(struct device *dev)
{
struct max8997_muic_info *info = dev_get_drvdata(dev);
int ret;
u8 val;
if (!info->muic) {
dev_err(info->dev, "%s: no muic i2c client\n", __func__);
return;
}
dev_info(info->dev, "%s: JIGSet: auto detection\n", __func__);
val = (0 << CTRL3_JIGSET_SHIFT) | (0 << CTRL3_BOOTSET_SHIFT);
ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CTRL3, val,
CTRL3_JIGSET_MASK | CTRL3_BOOTSET_MASK);
if (ret < 0) {
dev_err(info->dev, "%s: fail to update reg\n", __func__);
return;
}
}
static int max8997_muic_handle_usb(struct max8997_muic_info *info,
enum max8997_muic_usb_type usb_type, bool attached)
{
struct max8997_muic_platform_data *mdata = info->muic_pdata;
int ret = 0;
if (usb_type == MAX8997_USB_HOST) {
ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CONTROL1,
attached ? MAX8997_SW_USB : MAX8997_SW_OPEN,
SW_MASK);
if (ret) {
dev_err(info->dev, "failed to update muic register\n");
goto out;
}
}
if (mdata->usb_callback)
mdata->usb_callback(usb_type, attached);
out:
return ret;
}
static void max8997_led_clear_mode(struct max8997_led *led,
enum max8997_led_mode mode)
{
struct i2c_client *client = led->iodev->i2c;
u8 val = 0, mask = 0;
int ret;
switch (mode) {
case MAX8997_FLASH_MODE:
mask = led->id ?
MAX8997_LED1_FLASH_MASK : MAX8997_LED0_FLASH_MASK;
break;
case MAX8997_MOVIE_MODE:
mask = led->id ?
MAX8997_LED1_MOVIE_MASK : MAX8997_LED0_MOVIE_MASK;
break;
case MAX8997_FLASH_PIN_CONTROL_MODE:
mask = led->id ?
MAX8997_LED1_FLASH_PIN_MASK : MAX8997_LED0_FLASH_PIN_MASK;
break;
case MAX8997_MOVIE_PIN_CONTROL_MODE:
mask = led->id ?
MAX8997_LED1_MOVIE_PIN_MASK : MAX8997_LED0_MOVIE_PIN_MASK;
break;
default:
break;
}
if (mask) {
ret = max8997_update_reg(client,
MAX8997_REG_LEN_CNTL, val, mask);
if (ret)
dev_err(led->iodev->dev,
"failed to update register(%d)\n", ret);
}
}
static void max8997_muic_set_adcdbset(struct max8997_muic_info *info,
int value)
{
int ret;
u8 val;
if (value > 3) {
dev_err(info->dev, "%s: invalid value(%d)\n", __func__, value);
return;
}
if (!info->muic) {
dev_err(info->dev, "%s: no muic i2c client\n", __func__);
return;
}
val = value << CTRL3_ADCDBSET_SHIFT;
dev_info(info->dev, "%s: ADCDBSET(0x%02x)\n", __func__, val);
ret = max8997_update_reg(info->muic, MAX8997_MUIC_REG_CTRL3, val,
CTRL3_ADCDBSET_MASK);
if (ret < 0)
dev_err(info->dev, "%s: fail to update reg\n", __func__);
}
static int max8997_muic_set_usb_path(struct max8997_muic_info *info, int path)
{
struct i2c_client *client = info->muic;
struct max8997_muic_data *mdata = info->muic_data;
int ret;
int gpio_val;
u8 accdet, cntl1_val, cntl1_msk = 0, cntl2_val;
if (mdata->set_safeout) {
ret = mdata->set_safeout(path);
if (ret) {
dev_err(info->dev, "%s: fail to set safout!\n",
__func__);
return ret;
}
}
switch (path) {
case AP_USB_MODE:
dev_info(info->dev, "%s: AP_USB_MODE\n", __func__);
gpio_val = 0;
accdet = 1;
if (info->cable_type == CABLE_TYPE_OTG) {
accdet = 0;
/* DN1, DP2 */
cntl1_val = (1 << COMN1SW_SHIFT) | (1 << COMP2SW_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK;
}
break;
case CP_USB_MODE:
dev_info(info->dev, "%s: CP_USB_MODE\n", __func__);
gpio_val = 1;
accdet = 0;
/* UT1, UR2 */
cntl1_val = (3 << COMN1SW_SHIFT) | (3 << COMP2SW_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK;
break;
case AUDIO_MODE:
dev_info(info->dev, "%s: AUDIO_MODE\n", __func__);
gpio_val = 0;
accdet = 0;
/* SL1, SR2 */
cntl1_val = (2 << COMN1SW_SHIFT) | (2 << COMP2SW_SHIFT) |
(0 << MICEN_SHIFT);
cntl1_msk = COMN1SW_MASK | COMP2SW_MASK | MICEN_MASK;
break;
default:
dev_warn(info->dev, "%s: invalid path(%d)\n", __func__, path);
return -EINVAL;
}
#if !defined(CONFIG_TARGET_LOCALE_NA) && !defined(CONFIG_MACH_U1CAMERA_BD)
if (gpio_is_valid(info->muic_data->gpio_usb_sel))
gpio_direction_output(mdata->gpio_usb_sel, gpio_val);
#endif /* !CONFIG_TARGET_LOCALE_NA && !CONFIG_MACH_U1CAMERA_BD */
/* Enable/Disable Factory Accessory Detection State Machine */
cntl2_val = accdet << CTRL2_ACCDET_SHIFT;
max8997_update_reg(client, MAX8997_MUIC_REG_CTRL2, cntl2_val,
CTRL2_ACCDET_MASK);
if (!accdet) {
dev_info(info->dev, "%s: Set manual path\n", __func__);
max8997_update_reg(client, MAX8997_MUIC_REG_CTRL1, cntl1_val,
cntl1_msk);
cntl1_val = 0;
max8997_read_reg(client, MAX8997_MUIC_REG_CTRL1, &cntl1_val);
dev_info(info->dev, "%s: CNTL1(0x%02x)\n", __func__, cntl1_val);
}
return 0;
}
static int max8997_muic_handle_detach(struct max8997_muic_info *info)
{
struct i2c_client *client = info->muic;
struct max8997_muic_data *mdata = info->muic_data;
cable_type_t prev_ct = CABLE_TYPE_NONE;
int ret = 0;
/* Workaround: irq doesn't occur after detaching mHL cable */
max8997_write_reg(client, MAX8997_MUIC_REG_CTRL1, 0x00);
/* Enable Factory Accessory Detection State Machine */
max8997_update_reg(client, MAX8997_MUIC_REG_CTRL2,
(1 << CTRL2_ACCDET_SHIFT), CTRL2_ACCDET_MASK);
info->previous_key = DOCK_KEY_NONE;
if (info->cable_type == CABLE_TYPE_NONE) {
dev_info(info->dev, "%s: duplicated(NONE)\n", __func__);
return 0;
}
#if 0
if (mdata->jig_uart_cb)
mdata->jig_uart_cb(UART_PATH_AP);
#endif
if (mdata->is_mhl_attached && mdata->is_mhl_attached()
&& info->cable_type == CABLE_TYPE_MHL) {
dev_info(info->dev, "%s: MHL attached. Do Nothing\n",
__func__);
return 0;
}
switch (info->cable_type) {
case CABLE_TYPE_OTG:
dev_info(info->dev, "%s: OTG\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
if (mdata->usb_cb && info->is_usb_ready)
mdata->usb_cb(USB_OTGHOST_DETACHED);
break;
case CABLE_TYPE_USB:
case CABLE_TYPE_JIG_USB_OFF:
case CABLE_TYPE_JIG_USB_ON:
dev_info(info->dev, "%s: USB(0x%x)\n", __func__,
info->cable_type);
prev_ct = info->cable_type;
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret) {
info->cable_type = prev_ct;
break;
}
if (mdata->sw_path == CP_USB_MODE)
return 0;
if (mdata->usb_cb && info->is_usb_ready)
mdata->usb_cb(USB_CABLE_DETACHED);
break;
case CABLE_TYPE_DESKDOCK:
dev_info(info->dev, "%s: DESKDOCK\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret) {
info->cable_type = CABLE_TYPE_DESKDOCK;
break;
}
if (mdata->deskdock_cb)
mdata->deskdock_cb(MAX8997_MUIC_DETACHED);
break;
case CABLE_TYPE_CARDOCK:
dev_info(info->dev, "%s: CARDOCK\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret) {
info->cable_type = CABLE_TYPE_CARDOCK;
break;
}
if (mdata->cardock_cb)
mdata->cardock_cb(MAX8997_MUIC_DETACHED);
break;
case CABLE_TYPE_TA:
dev_info(info->dev, "%s: TA\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret)
info->cable_type = CABLE_TYPE_TA;
break;
case CABLE_TYPE_JIG_UART_ON:
dev_info(info->dev, "%s: JIG UART/BOOTON\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
break;
case CABLE_TYPE_JIG_UART_OFF:
dev_info(info->dev, "%s: JIG UART/BOOTOFF\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
break;
case CABLE_TYPE_JIG_UART_OFF_VB:
dev_info(info->dev, "%s: JIG UART/OFF/VB\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret)
info->cable_type = CABLE_TYPE_JIG_UART_OFF_VB;
break;
case CABLE_TYPE_MHL:
dev_info(info->dev, "%s: MHL\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
break;
case CABLE_TYPE_MHL_VB:
dev_info(info->dev, "%s: MHL VBUS\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
max8997_muic_set_charging_type(info, false);
if (mdata->is_mhl_attached && mdata->is_mhl_attached()) {
if (mdata->mhl_cb && info->is_mhl_ready)
mdata->mhl_cb(MAX8997_MUIC_DETACHED);
}
break;
case CABLE_TYPE_UNKNOWN:
dev_info(info->dev, "%s: UNKNOWN\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret)
info->cable_type = CABLE_TYPE_UNKNOWN;
break;
default:
dev_info(info->dev, "%s:invalid cable type %d\n",
__func__, info->cable_type);
break;
}
return ret;
}
static int max8997_muic_handle_detach(struct max8997_muic_info *info)
{
struct i2c_client *client = info->muic;
struct max8997_muic_data *mdata = info->muic_data;
enum cable_type prev_ct = CABLE_TYPE_NONE;
int ret = 0;
#if defined(CONFIG_SEC_MODEM_M0_TD)
gpio_set_value(GPIO_AP_CP_INT1, 0);
#endif
/*
* MAX8996/8997-MUIC bug:
*
* Auto-switching COMN/P is not restored automatically when detached and
* remains undetermined state. UART(UT1, UR2) will be short (because TA
* D+/D- is short) if charger(TA) insertion is followed right after the
* JIG off. Reset CONTROL1 is needed when detaching cable.
*/
max8997_write_reg(client, MAX8997_MUIC_REG_CTRL1, 0x00);
if (info->cable_type == CABLE_TYPE_MHL) {
/* Enable Factory Accessory Detection State Machine */
max8997_update_reg(client, MAX8997_MUIC_REG_CTRL2,
(1 << CTRL2_ACCDET_SHIFT), CTRL2_ACCDET_MASK);
}
#ifdef CONFIG_USBHUB_USB3803
/* setting usb hub in default mode (standby) */
usb3803_set_mode(USB_3803_MODE_STANDBY);
#endif /* CONFIG_USBHUB_USB3803 */
info->previous_key = DOCK_KEY_NONE;
if (info->cable_type == CABLE_TYPE_NONE) {
dev_info(info->dev, "%s: duplicated(NONE)\n", __func__);
return 0;
}
#if 0
if (mdata->jig_uart_cb)
mdata->jig_uart_cb(UART_PATH_AP);
#endif
if (mdata->is_mhl_attached && mdata->is_mhl_attached()
&& info->cable_type == CABLE_TYPE_MHL) {
dev_info(info->dev, "%s: MHL attached. Do Nothing\n",
__func__);
return 0;
}
switch (info->cable_type) {
case CABLE_TYPE_OTG:
dev_info(info->dev, "%s: OTG\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
if (mdata->usb_cb && info->is_usb_ready)
mdata->usb_cb(USB_OTGHOST_DETACHED);
break;
case CABLE_TYPE_USB:
case CABLE_TYPE_JIG_USB_OFF:
case CABLE_TYPE_JIG_USB_ON:
dev_info(info->dev, "%s: USB(0x%x)\n", __func__,
info->cable_type);
prev_ct = info->cable_type;
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret) {
info->cable_type = prev_ct;
break;
}
if (mdata->sw_path == CP_USB_MODE)
return 0;
if (mdata->usb_cb && info->is_usb_ready)
mdata->usb_cb(USB_CABLE_DETACHED);
break;
case CABLE_TYPE_DESKDOCK:
dev_info(info->dev, "%s: DESKDOCK\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret) {
info->cable_type = CABLE_TYPE_DESKDOCK;
break;
}
if (mdata->deskdock_cb)
mdata->deskdock_cb(MAX8997_MUIC_DETACHED);
break;
case CABLE_TYPE_CARDOCK:
dev_info(info->dev, "%s: CARDOCK\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret) {
info->cable_type = CABLE_TYPE_CARDOCK;
break;
}
if (mdata->cardock_cb)
mdata->cardock_cb(MAX8997_MUIC_DETACHED);
break;
case CABLE_TYPE_TA:
dev_info(info->dev, "%s: TA\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret)
info->cable_type = CABLE_TYPE_TA;
break;
case CABLE_TYPE_JIG_UART_ON:
dev_info(info->dev, "%s: JIG UART/BOOTON\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
break;
case CABLE_TYPE_JIG_UART_OFF:
dev_info(info->dev, "%s: JIG UART/BOOTOFF\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
break;
case CABLE_TYPE_JIG_UART_OFF_VB:
dev_info(info->dev, "%s: JIG UART/OFF/VB\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret)
info->cable_type = CABLE_TYPE_JIG_UART_OFF_VB;
break;
case CABLE_TYPE_MHL:
dev_info(info->dev, "%s: MHL\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
break;
case CABLE_TYPE_MHL_VB:
dev_info(info->dev, "%s: MHL VBUS\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
max8997_muic_set_charging_type(info, false);
if (mdata->is_mhl_attached && mdata->is_mhl_attached()) {
if (mdata->mhl_cb && info->is_mhl_ready)
mdata->mhl_cb(MAX8997_MUIC_DETACHED);
}
break;
case CABLE_TYPE_UNKNOWN:
dev_info(info->dev, "%s: UNKNOWN\n", __func__);
info->cable_type = CABLE_TYPE_NONE;
ret = max8997_muic_set_charging_type(info, false);
if (ret)
info->cable_type = CABLE_TYPE_UNKNOWN;
break;
default:
dev_info(info->dev, "%s:invalid cable type %d\n",
__func__, info->cable_type);
break;
}
return ret;
}
static __devinit int max8997_charger_probe(struct platform_device *pdev)
{
struct max8997_dev *max8997 = dev_get_drvdata(pdev->dev.parent);
struct max8997_platform_data *pdata = dev_get_platdata(max8997->dev);
struct i2c_client *i2c = max8997->i2c;
struct chg_data *chg;
int ret = 0;
dev_info(&pdev->dev, "%s : MAX8997 Charger Driver Loading\n", __func__);
chg = kzalloc(sizeof(*chg), GFP_KERNEL);
if (!chg)
return -ENOMEM;
chg->dev = &pdev->dev;
chg->max8997 = max8997;
chg->power = pdata->power;
chg->irq_topoff = max8997->irq_base + MAX8997_IRQ_TOPOFF;
chg->irq_chgins = max8997->irq_base + MAX8997_IRQ_CHGINS;
chg->irq_chgrm = max8997->irq_base + MAX8997_IRQ_CHGRM;
chg->psy_bat.name = "max8997-charger",
chg->psy_bat.type = POWER_SUPPLY_TYPE_BATTERY,
chg->psy_bat.properties = max8997_battery_props,
chg->psy_bat.num_properties = ARRAY_SIZE(max8997_battery_props),
chg->psy_bat.get_property = max8997_chg_get_property,
chg->psy_bat.set_property = max8997_chg_set_property,
platform_set_drvdata(pdev, chg);
/* TODO: configure by platform data*/
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL1, /* Disable */
(0x7 << TFCH_SHIFT), TFCH_MASK);
if (ret < 0)
goto err_kfree;
/* TODO: configure by platform data*/
ret = max8997_update_reg(i2c, MAX8997_REG_MBCCTRL3, /* 4.2V */
(0x0 << MBCCV_SHIFT), MBCCV_MASK);
if (ret < 0)
goto err_kfree;
/* init power supplier framework */
ret = power_supply_register(&pdev->dev, &chg->psy_bat);
if (ret) {
pr_err("Failed to register power supply psy_bat\n");
goto err_kfree;
}
ret = request_threaded_irq(chg->irq_topoff, NULL,
max8997_chg_topoff_irq, 0, "chg-topoff", chg);
if (ret < 0)
dev_err(&pdev->dev, "%s: fail to request topoff IRQ: %d: %d\n",
__func__, chg->irq_topoff, ret);
ret = request_threaded_irq(chg->irq_chgins, NULL,
max8997_chg_charger_irq, 0, "chg-insert", chg);
if (ret < 0)
dev_err(&pdev->dev, "%s: fail to request chgins IRQ: %d: %d\n",
__func__, chg->irq_chgins, ret);
ret = request_threaded_irq(chg->irq_chgrm, NULL,
max8997_chg_charger_irq, 0, "chg-remove", chg);
if (ret < 0)
dev_err(&pdev->dev, "%s: fail to request chgrm IRQ: %d: %d\n",
__func__, chg->irq_chgrm, ret);
return 0;
err_kfree:
kfree(chg);
return ret;
}
static int max8997_battery_probe(struct platform_device *pdev)
{
int ret = 0;
struct charger_data *charger;
struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
struct max8997_platform_data *pdata = dev_get_platdata(iodev->dev);
struct power_supply_config psy_cfg = {};
if (!pdata)
return -EINVAL;
if (pdata->eoc_mA) {
int val = (pdata->eoc_mA - 50) / 10;
if (val < 0)
val = 0;
if (val > 0xf)
val = 0xf;
ret = max8997_update_reg(iodev->i2c,
MAX8997_REG_MBCCTRL5, val, 0xf);
if (ret < 0) {
dev_err(&pdev->dev, "Cannot use i2c bus.\n");
return ret;
}
}
switch (pdata->timeout) {
case 5:
ret = max8997_update_reg(iodev->i2c, MAX8997_REG_MBCCTRL1,
0x2 << 4, 0x7 << 4);
break;
case 6:
ret = max8997_update_reg(iodev->i2c, MAX8997_REG_MBCCTRL1,
0x3 << 4, 0x7 << 4);
break;
case 7:
ret = max8997_update_reg(iodev->i2c, MAX8997_REG_MBCCTRL1,
0x4 << 4, 0x7 << 4);
break;
case 0:
ret = max8997_update_reg(iodev->i2c, MAX8997_REG_MBCCTRL1,
0x7 << 4, 0x7 << 4);
break;
default:
dev_err(&pdev->dev, "incorrect timeout value (%d)\n",
pdata->timeout);
return -EINVAL;
}
if (ret < 0) {
dev_err(&pdev->dev, "Cannot use i2c bus.\n");
return ret;
}
charger = devm_kzalloc(&pdev->dev, sizeof(struct charger_data),
GFP_KERNEL);
if (charger == NULL) {
dev_err(&pdev->dev, "Cannot allocate memory.\n");
return -ENOMEM;
}
platform_set_drvdata(pdev, charger);
charger->dev = &pdev->dev;
charger->iodev = iodev;
psy_cfg.drv_data = charger;
charger->battery = power_supply_register(&pdev->dev,
&max8997_battery_desc,
&psy_cfg);
if (IS_ERR(charger->battery)) {
dev_err(&pdev->dev, "failed: power supply register\n");
return PTR_ERR(charger->battery);
}
return 0;
}