static int tps65217_pmic_dcdc_set_voltage(struct regulator_dev *dev,
int min_uV, int max_uV, unsigned *selector)
{
int ret;
struct tps65217 *tps = rdev_get_drvdata(dev);
unsigned int dcdc = rdev_get_id(dev);
if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
return -EINVAL;
if (min_uV < tps->info[dcdc]->min_uV
|| min_uV > tps->info[dcdc]->max_uV)
return -EINVAL;
if (max_uV < tps->info[dcdc]->min_uV
|| max_uV > tps->info[dcdc]->max_uV)
return -EINVAL;
ret = tps->info[dcdc]->uv_to_vsel(min_uV, selector);
if (ret)
return ret;
/* Set the voltage based on vsel value and write protect level is 2 */
ret = tps65217_set_bits(tps, tps->info[dcdc]->set_vout_reg,
tps->info[dcdc]->set_vout_mask,
*selector, TPS65217_PROTECT_L2);
if (ret)
return ret;
/* Set GO bit to initiate voltage transistion */
return tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
TPS65217_PROTECT_L2);
}
static int tps65217_pmic_ldo_set_voltage(struct regulator_dev *dev,
int min_uV, int max_uV, unsigned *selector)
{
int ret;
struct tps65217 *tps = rdev_get_drvdata(dev);
unsigned int ldo = rdev_get_id(dev);
if (ldo < TPS65217_LDO_2 || ldo > TPS65217_LDO_4)
return -EINVAL;
if (min_uV < tps->info[ldo]->min_uV
|| min_uV > tps->info[ldo]->max_uV)
return -EINVAL;
if (max_uV < tps->info[ldo]->min_uV
|| max_uV > tps->info[ldo]->max_uV)
return -EINVAL;
ret = tps->info[ldo]->uv_to_vsel(min_uV, selector);
if (ret)
return ret;
/* Set the voltage based on vsel value and write protect level is 2 */
return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
tps->info[ldo]->set_vout_mask,
*selector, TPS65217_PROTECT_L2);
}
static int tps65217_pmic_set_voltage(struct regulator_dev *dev,
int min_uV, int max_uV, unsigned *selector)
{
int ret;
struct tps65217 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
if (rid == TPS65217_LDO_1)
return -EINVAL;
if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
if (min_uV < tps->info[rid]->min_uV
|| min_uV > tps->info[rid]->max_uV)
return -EINVAL;
if (max_uV < tps->info[rid]->min_uV
|| max_uV > tps->info[rid]->max_uV)
return -EINVAL;
ret = tps->info[rid]->uv_to_vsel(min_uV, selector);
if (ret)
return ret;
ret = tps65217_set_bits(tps, tps->info[rid]->set_vout_reg,
tps->info[rid]->set_vout_mask,
*selector, TPS65217_PROTECT_L2);
switch (rid) {
case TPS65217_DCDC_1 ... TPS65217_DCDC_3:
ret = tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
TPS65217_PROTECT_L2);
break;
}
return ret;
}
static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev,
unsigned selector)
{
int ret;
struct tps65217 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
/* Set the voltage based on vsel value and write protect level is 2 */
ret = tps65217_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
selector, TPS65217_PROTECT_L2);
/* Set GO bit for DCDCx to initiate voltage transistion */
switch (rid) {
case TPS65217_DCDC_1 ... TPS65217_DCDC_3:
ret = tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
TPS65217_PROTECT_L2);
break;
}
return ret;
}
static int tps65217_pmic_enable(struct regulator_dev *dev)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
int rid = rdev_get_id(dev);
if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
/* Enable the regulator and password protection is level 1 */
return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
dev->desc->enable_mask, dev->desc->enable_mask,
TPS65217_PROTECT_L1);
}
static int tps65217_pmic_enable(struct regulator_dev *dev)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
return -EINVAL;
return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
tps->info[rid]->enable_mask,
tps->info[rid]->enable_mask,
TPS65217_PROTECT_L1);
}
static int tps65217_pmic_ldo_enable(struct regulator_dev *dev)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
unsigned int ldo = rdev_get_id(dev);
if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
return -EINVAL;
/* Enable the regulator and password protection is level 1 */
return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
tps->info[ldo]->enable_mask,
tps->info[ldo]->enable_mask,
TPS65217_PROTECT_L1);
}
static int tps65217_pmic_dcdc_enable(struct regulator_dev *dev)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
unsigned int dcdc = rdev_get_id(dev);
if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
return -EINVAL;
/* Enable the regulator and password protection is level 1 */
return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
tps->info[dcdc]->enable_mask,
tps->info[dcdc]->enable_mask,
TPS65217_PROTECT_L1);
}
static int tps65217_pmic_ldo1_set_voltage_sel(struct regulator_dev *dev,
unsigned selector)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev);
if (ldo != TPS65217_LDO_1)
return -EINVAL;
if (selector >= tps->info[ldo]->table_len)
return -EINVAL;
return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
tps->info[ldo]->set_vout_mask,
selector, TPS65217_PROTECT_L2);
}
static int tps65217_pmic_ldo_set_voltage_sel(struct regulator_dev *dev,
unsigned selector)
{
struct tps65217 *tps = rdev_get_drvdata(dev);
int ldo = rdev_get_id(dev);
if (ldo != TPS65217_LDO_1)
return -EINVAL;
if (selector >= tps->info[ldo]->table_len)
return -EINVAL;
/* Set the voltage based on vsel value and write protect level is 2 */
return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
tps->info[ldo]->set_vout_mask,
selector, TPS65217_PROTECT_L2);
}
static int tps65217_bl_enable(struct tps65217_bl *tps65217_bl)
{
int rc;
rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1,
TPS65217_WLEDCTRL1_ISINK_ENABLE,
TPS65217_WLEDCTRL1_ISINK_ENABLE, TPS65217_PROTECT_NONE);
if (rc) {
dev_err(tps65217_bl->dev,
"failed to enable backlight: %d\n", rc);
return rc;
}
tps65217_bl->on = 1;
dev_dbg(tps65217_bl->dev, "backlight enabled\n");
return 0;
}
static int tps65217_enable_charging(struct tps65217_charger *charger)
{
int ret;
/* charger already enabled */
if (charger->ac_online)
return 0;
dev_dbg(charger->dev, "%s: enable charging\n", __func__);
ret = tps65217_set_bits(charger->tps, TPS65217_REG_CHGCONFIG1,
TPS65217_CHGCONFIG1_CHG_EN,
TPS65217_CHGCONFIG1_CHG_EN,
TPS65217_PROTECT_NONE);
if (ret) {
dev_err(charger->dev,
"%s: Error in writing CHG_EN in reg 0x%x: %d\n",
__func__, TPS65217_REG_CHGCONFIG1, ret);
return ret;
}
charger->ac_online = 1;
return 0;
}
static int tps65217_bl_hw_init(struct tps65217_bl *tps65217_bl,
struct tps65217_bl_pdata *pdata)
{
int rc;
rc = tps65217_bl_disable(tps65217_bl);
if (rc)
return rc;
switch (pdata->isel) {
case TPS65217_BL_ISET1:
/* select ISET_1 current level */
rc = tps65217_clear_bits(tps65217_bl->tps,
TPS65217_REG_WLEDCTRL1,
TPS65217_WLEDCTRL1_ISEL,
TPS65217_PROTECT_NONE);
if (rc) {
dev_err(tps65217_bl->dev,
"failed to select ISET1 current level: %d)\n",
rc);
return rc;
}
dev_dbg(tps65217_bl->dev, "selected ISET1 current level\n");
break;
case TPS65217_BL_ISET2:
/* select ISET2 current level */
rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1,
TPS65217_WLEDCTRL1_ISEL,
TPS65217_WLEDCTRL1_ISEL, TPS65217_PROTECT_NONE);
if (rc) {
dev_err(tps65217_bl->dev,
"failed to select ISET2 current level: %d\n",
rc);
return rc;
}
dev_dbg(tps65217_bl->dev, "selected ISET2 current level\n");
break;
default:
dev_err(tps65217_bl->dev,
"invalid value for current level: %d\n", pdata->isel);
return -EINVAL;
}
/* set PWM frequency */
rc = tps65217_set_bits(tps65217_bl->tps,
TPS65217_REG_WLEDCTRL1,
TPS65217_WLEDCTRL1_FDIM_MASK,
pdata->fdim,
TPS65217_PROTECT_NONE);
if (rc) {
dev_err(tps65217_bl->dev,
"failed to select PWM dimming frequency: %d\n",
rc);
return rc;
}
return 0;
}
static int tps65217_probe(struct i2c_client *client,
const struct i2c_device_id *ids)
{
struct tps65217 *tps;
unsigned int version;
unsigned long chip_id = ids->driver_data;
const struct of_device_id *match;
bool status_off = false;
int ret;
if (client->dev.of_node) {
match = of_match_device(tps65217_of_match, &client->dev);
if (!match) {
dev_err(&client->dev,
"Failed to find matching dt id\n");
return -EINVAL;
}
chip_id = (unsigned long)match->data;
status_off = of_property_read_bool(client->dev.of_node,
"ti,pmic-shutdown-controller");
}
if (!chip_id) {
dev_err(&client->dev, "id is null.\n");
return -ENODEV;
}
tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
i2c_set_clientdata(client, tps);
tps->dev = &client->dev;
tps->id = chip_id;
tps->regmap = devm_regmap_init_i2c(client, &tps65217_regmap_config);
if (IS_ERR(tps->regmap)) {
ret = PTR_ERR(tps->regmap);
dev_err(tps->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
ret = mfd_add_devices(tps->dev, -1, tps65217s,
ARRAY_SIZE(tps65217s), NULL, 0, NULL);
if (ret < 0) {
dev_err(tps->dev, "mfd_add_devices failed: %d\n", ret);
return ret;
}
ret = tps65217_reg_read(tps, TPS65217_REG_CHIPID, &version);
if (ret < 0) {
dev_err(tps->dev, "Failed to read revision register: %d\n",
ret);
return ret;
}
/* Set the PMIC to shutdown on PWR_EN toggle */
if (status_off) {
ret = tps65217_set_bits(tps, TPS65217_REG_STATUS,
TPS65217_STATUS_OFF, TPS65217_STATUS_OFF,
TPS65217_PROTECT_NONE);
if (ret)
dev_warn(tps->dev, "unable to set the status OFF\n");
}
dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n",
(version & TPS65217_CHIPID_CHIP_MASK) >> 4,
version & TPS65217_CHIPID_REV_MASK);
return 0;
}
static int __devinit tps65217_probe(struct i2c_client *client,
const struct i2c_device_id *ids)
{
struct tps65217 *tps;
struct tps65217_board *pdata = client->dev.platform_data;
int i, ret;
unsigned int version;
tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
tps->pdata = pdata;
tps->regmap = regmap_init_i2c(client, &tps65217_regmap_config);
if (IS_ERR(tps->regmap)) {
ret = PTR_ERR(tps->regmap);
dev_err(tps->dev, "Failed to allocate register map: %d\n",
ret);
return ret;
}
i2c_set_clientdata(client, tps);
tps->dev = &client->dev;
ret = tps65217_reg_read(tps, TPS65217_REG_CHIPID, &version);
if (ret < 0) {
dev_err(tps->dev, "Failed to read revision"
" register: %d\n", ret);
goto err_regmap;
}
/* Set the PMIC to shutdown on PWR_EN toggle */
if (pdata->status_off) {
ret = tps65217_set_bits(tps, TPS65217_REG_STATUS,
TPS65217_STATUS_OFF, TPS65217_STATUS_OFF,
TPS65217_PROTECT_NONE);
if (ret) {
dev_err(tps->dev, "Failed to set the status OFF\n");
goto err_regmap;
}
}
dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n",
(version & TPS65217_CHIPID_CHIP_MASK) >> 4,
version & TPS65217_CHIPID_REV_MASK);
for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
struct platform_device *pdev;
pdev = platform_device_alloc("tps65217-pmic", i);
if (!pdev) {
dev_err(tps->dev, "Cannot create regulator %d\n", i);
continue;
}
pdev->dev.parent = tps->dev;
platform_device_add_data(pdev, &pdata->tps65217_init_data[i],
sizeof(pdata->tps65217_init_data[i]));
tps->regulator_pdev[i] = pdev;
platform_device_add(pdev);
}
return 0;
err_regmap:
regmap_exit(tps->regmap);
return ret;
}