diff options
Diffstat (limited to 'drivers/regulator/tps65217-regulator.c')
| -rw-r--r-- | drivers/regulator/tps65217-regulator.c | 259 |
1 files changed, 72 insertions, 187 deletions
diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 15f2fa0bb005..e39521b42772 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -151,166 +151,69 @@ static struct tps_info tps65217_pmic_regs[] = { TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK), }; -static int tps65217_pmic_dcdc_is_enabled(struct regulator_dev *dev) +static int tps65217_pmic_is_enabled(struct regulator_dev *dev) { int ret; struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int data, dcdc = rdev_get_id(dev); + unsigned int data, rid = rdev_get_id(dev); - if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3) + if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) return -EINVAL; ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data); if (ret) return ret; - return (data & tps->info[dcdc]->enable_mask) ? 1 : 0; + return (data & tps->info[rid]->enable_mask) ? 1 : 0; } -static int tps65217_pmic_ldo_is_enabled(struct regulator_dev *dev) +static int tps65217_pmic_enable(struct regulator_dev *dev) { - int ret; struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int data, ldo = rdev_get_id(dev); + unsigned int rid = rdev_get_id(dev); - if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4) - return -EINVAL; - - ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data); - if (ret) - return ret; - - return (data & tps->info[ldo]->enable_mask) ? 1 : 0; -} - -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) + 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, - tps->info[dcdc]->enable_mask, - tps->info[dcdc]->enable_mask, + tps->info[rid]->enable_mask, + tps->info[rid]->enable_mask, TPS65217_PROTECT_L1); } -static int tps65217_pmic_dcdc_disable(struct regulator_dev *dev) +static int tps65217_pmic_disable(struct regulator_dev *dev) { struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int dcdc = rdev_get_id(dev); + unsigned int rid = rdev_get_id(dev); - if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3) + if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) return -EINVAL; /* Disable the regulator and password protection is level 1 */ return tps65217_clear_bits(tps, TPS65217_REG_ENABLE, - tps->info[dcdc]->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_ldo_disable(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; - - /* Disable the regulator and password protection is level 1 */ - return tps65217_clear_bits(tps, TPS65217_REG_ENABLE, - tps->info[ldo]->enable_mask, TPS65217_PROTECT_L1); -} - -static int tps65217_pmic_dcdc_get_voltage_sel(struct regulator_dev *dev) -{ - int ret; - struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int selector, dcdc = rdev_get_id(dev); - - if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3) - return -EINVAL; - - ret = tps65217_reg_read(tps, tps->info[dcdc]->set_vout_reg, &selector); - if (ret) - return ret; - - selector &= tps->info[dcdc]->set_vout_mask; - - return selector; + tps->info[rid]->enable_mask, TPS65217_PROTECT_L1); } -static int tps65217_pmic_dcdc_set_voltage(struct regulator_dev *dev, - int min_uV, int max_uV, unsigned *selector) +static int tps65217_pmic_get_voltage_sel(struct regulator_dev *dev) { 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; + unsigned int selector, rid = rdev_get_id(dev); - if (min_uV < tps->info[dcdc]->min_uV - || min_uV > tps->info[dcdc]->max_uV) + if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) 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); + ret = tps65217_reg_read(tps, tps->info[rid]->set_vout_reg, &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_get_voltage_sel(struct regulator_dev *dev) -{ - int ret; - struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int selector, ldo = rdev_get_id(dev); - - if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4) - return -EINVAL; - - ret = tps65217_reg_read(tps, tps->info[ldo]->set_vout_reg, &selector); - if (ret) - return ret; - - selector &= tps->info[ldo]->set_vout_mask; + selector &= tps->info[rid]->set_vout_mask; return selector; } -static int tps65217_pmic_ldo_set_voltage_sel(struct regulator_dev *dev, +static int tps65217_pmic_ldo1_set_voltage_sel(struct regulator_dev *dev, unsigned selector) { struct tps65217 *tps = rdev_get_drvdata(dev); @@ -328,112 +231,95 @@ static int tps65217_pmic_ldo_set_voltage_sel(struct regulator_dev *dev, selector, TPS65217_PROTECT_L2); } -static int tps65217_pmic_ldo_set_voltage(struct regulator_dev *dev, +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 ldo = rdev_get_id(dev); + unsigned int rid = rdev_get_id(dev); - if (ldo < TPS65217_LDO_2 || ldo > TPS65217_LDO_4) + /* LDO1 implements set_voltage_sel callback */ + if (rid == TPS65217_LDO_1) return -EINVAL; - if (min_uV < tps->info[ldo]->min_uV - || min_uV > tps->info[ldo]->max_uV) + if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) return -EINVAL; - if (max_uV < tps->info[ldo]->min_uV - || max_uV > tps->info[ldo]->max_uV) + if (min_uV < tps->info[rid]->min_uV + || min_uV > tps->info[rid]->max_uV) return -EINVAL; - ret = tps->info[ldo]->uv_to_vsel(min_uV, selector); + 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; /* 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_dcdc_list_voltage(struct regulator_dev *dev, - unsigned selector) -{ - 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 (selector >= tps->info[dcdc]->table_len) - return -EINVAL; + ret = tps65217_set_bits(tps, tps->info[rid]->set_vout_reg, + tps->info[rid]->set_vout_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 tps->info[dcdc]->vsel_to_uv(selector); + return ret; } -static int tps65217_pmic_ldo_list_voltage(struct regulator_dev *dev, +static int tps65217_pmic_list_voltage(struct regulator_dev *dev, unsigned selector) { struct tps65217 *tps = rdev_get_drvdata(dev); - unsigned int ldo = rdev_get_id(dev); + unsigned int rid = rdev_get_id(dev); - if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4) + if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) return -EINVAL; - if (selector >= tps->info[ldo]->table_len) + if (selector >= tps->info[rid]->table_len) return -EINVAL; - if (tps->info[ldo]->table) - return tps->info[ldo]->table[selector]; + if (tps->info[rid]->table) + return tps->info[rid]->table[selector]; - return tps->info[ldo]->vsel_to_uv(selector); + return tps->info[rid]->vsel_to_uv(selector); } -/* Operations permitted on DCDCx */ -static struct regulator_ops tps65217_pmic_dcdc_ops = { - .is_enabled = tps65217_pmic_dcdc_is_enabled, - .enable = tps65217_pmic_dcdc_enable, - .disable = tps65217_pmic_dcdc_disable, - .get_voltage_sel = tps65217_pmic_dcdc_get_voltage_sel, - .set_voltage = tps65217_pmic_dcdc_set_voltage, - .list_voltage = tps65217_pmic_dcdc_list_voltage, +/* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */ +static struct regulator_ops tps65217_pmic_ops = { + .is_enabled = tps65217_pmic_is_enabled, + .enable = tps65217_pmic_enable, + .disable = tps65217_pmic_disable, + .get_voltage_sel = tps65217_pmic_get_voltage_sel, + .set_voltage = tps65217_pmic_set_voltage, + .list_voltage = tps65217_pmic_list_voltage, }; /* Operations permitted on LDO1 */ static struct regulator_ops tps65217_pmic_ldo1_ops = { - .is_enabled = tps65217_pmic_ldo_is_enabled, - .enable = tps65217_pmic_ldo_enable, - .disable = tps65217_pmic_ldo_disable, - .get_voltage_sel = tps65217_pmic_ldo_get_voltage_sel, - .set_voltage_sel = tps65217_pmic_ldo_set_voltage_sel, - .list_voltage = tps65217_pmic_ldo_list_voltage, -}; - -/* Operations permitted on LDO2, LDO3 and LDO4 */ -static struct regulator_ops tps65217_pmic_ldo234_ops = { - .is_enabled = tps65217_pmic_ldo_is_enabled, - .enable = tps65217_pmic_ldo_enable, - .disable = tps65217_pmic_ldo_disable, - .get_voltage_sel = tps65217_pmic_ldo_get_voltage_sel, - .set_voltage = tps65217_pmic_ldo_set_voltage, - .list_voltage = tps65217_pmic_ldo_list_voltage, + .is_enabled = tps65217_pmic_is_enabled, + .enable = tps65217_pmic_enable, + .disable = tps65217_pmic_disable, + .get_voltage_sel = tps65217_pmic_get_voltage_sel, + .set_voltage_sel = tps65217_pmic_ldo1_set_voltage_sel, + .list_voltage = tps65217_pmic_list_voltage, }; static struct regulator_desc regulators[] = { - TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, - tps65217_pmic_dcdc_ops, 64), - TPS65217_REGULATOR("DCDC2",TPS65217_DCDC_2, - tps65217_pmic_dcdc_ops, 64), - TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, - tps65217_pmic_dcdc_ops, 64), - TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, - tps65217_pmic_ldo1_ops, 16), - TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, - tps65217_pmic_ldo234_ops, 64), - TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, - tps65217_pmic_ldo234_ops, 32), - TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, - tps65217_pmic_ldo234_ops, 32), + TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64), + TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64), + TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64), + TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16), + TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64), + TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32), + TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32), }; static int __devinit tps65217_regulator_probe(struct platform_device *pdev) @@ -486,7 +372,6 @@ static void __exit tps65217_regulator_exit(void) } module_exit(tps65217_regulator_exit); - MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>"); MODULE_DESCRIPTION("TPS65217 voltage regulator driver"); MODULE_ALIAS("platform:tps65217-pmic"); |
