diff options
author | Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> | 2011-05-16 23:35:03 (GMT) |
---|---|---|
committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2011-05-27 09:49:10 (GMT) |
commit | a320e3c3d6351814afa5182159df88d2637e0f6f (patch) | |
tree | d098d54817b4363761505e66acf64f555e410a31 /drivers/regulator/tps65910-regulator.c | |
parent | 795570561cc9c8dc7f7582ed6c4d07121b1c4831 (diff) | |
download | linux-a320e3c3d6351814afa5182159df88d2637e0f6f.tar.xz |
regulator: tps65911: Add new chip version
The tps65911 chip introduces new features, including changes in
the regulator module.
- VDD1 and VDD2 remain unchanged.
- VDD3 is now named VDDCTRL and has a wider voltage range.
- LDOs are now named LDO1...8 and voltage ranges are sequential,
making LDOs easier to handle.
Signed-off-by: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'drivers/regulator/tps65910-regulator.c')
-rw-r--r-- | drivers/regulator/tps65910-regulator.c | 357 |
1 files changed, 323 insertions, 34 deletions
diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index 048ba47..55dd4e6 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -39,8 +39,17 @@ #define TPS65910_REG_VAUX33 11 #define TPS65910_REG_VMMC 12 -#define TPS65910_NUM_REGULATOR 13 +#define TPS65911_REG_VDDCTRL 4 +#define TPS65911_REG_LDO1 5 +#define TPS65911_REG_LDO2 6 +#define TPS65911_REG_LDO3 7 +#define TPS65911_REG_LDO4 8 +#define TPS65911_REG_LDO5 9 +#define TPS65911_REG_LDO6 10 +#define TPS65911_REG_LDO7 11 +#define TPS65911_REG_LDO8 12 +#define TPS65910_NUM_REGULATOR 13 #define TPS65910_SUPPLY_STATE_ENABLED 0x1 /* supported VIO voltages in milivolts */ @@ -48,7 +57,9 @@ static const u16 VIO_VSEL_table[] = { 1500, 1800, 2500, 3300, }; -/* supported VIO voltages in milivolts */ +/* VSEL tables for TPS65910 specific LDOs and dcdc's */ + +/* supported VDD3 voltages in milivolts */ static const u16 VDD3_VSEL_table[] = { 5000, }; @@ -187,6 +198,71 @@ static struct tps_info tps65910_regs[] = { }, }; +static struct tps_info tps65911_regs[] = { + { + .name = "VIO", + .min_uV = 1500000, + .max_uV = 3300000, + .table_len = ARRAY_SIZE(VIO_VSEL_table), + .table = VIO_VSEL_table, + }, + { + .name = "VDD1", + .min_uV = 600000, + .max_uV = 4500000, + }, + { + .name = "VDD2", + .min_uV = 600000, + .max_uV = 4500000, + }, + { + .name = "VDDCTRL", + .min_uV = 600000, + .max_uV = 1400000, + }, + { + .name = "LDO1", + .min_uV = 1000000, + .max_uV = 3300000, + }, + { + .name = "LDO2", + .min_uV = 1000000, + .max_uV = 3300000, + }, + { + .name = "LDO3", + .min_uV = 1000000, + .max_uV = 3300000, + }, + { + .name = "LDO4", + .min_uV = 1000000, + .max_uV = 3300000, + }, + { + .name = "LDO5", + .min_uV = 1000000, + .max_uV = 3300000, + }, + { + .name = "LDO6", + .min_uV = 1000000, + .max_uV = 3300000, + }, + { + .name = "LDO7", + .min_uV = 1000000, + .max_uV = 3300000, + }, + { + .name = "LDO8", + .min_uV = 1000000, + .max_uV = 3300000, + }, +}; + struct tps65910_reg { struct regulator_desc desc[TPS65910_NUM_REGULATOR]; struct tps65910 *mfd; @@ -194,6 +270,7 @@ struct tps65910_reg { struct tps_info *info[TPS65910_NUM_REGULATOR]; struct mutex mutex; int mode; + int (*get_ctrl_reg)(int); }; static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg) @@ -300,12 +377,46 @@ static int tps65910_get_ctrl_register(int id) } } +static int tps65911_get_ctrl_register(int id) +{ + switch (id) { + case TPS65910_REG_VRTC: + return TPS65910_VRTC; + case TPS65910_REG_VIO: + return TPS65910_VIO; + case TPS65910_REG_VDD1: + return TPS65910_VDD1; + case TPS65910_REG_VDD2: + return TPS65910_VDD2; + case TPS65911_REG_VDDCTRL: + return TPS65911_VDDCTRL; + case TPS65911_REG_LDO1: + return TPS65911_LDO1; + case TPS65911_REG_LDO2: + return TPS65911_LDO2; + case TPS65911_REG_LDO3: + return TPS65911_LDO3; + case TPS65911_REG_LDO4: + return TPS65911_LDO4; + case TPS65911_REG_LDO5: + return TPS65911_LDO5; + case TPS65911_REG_LDO6: + return TPS65911_LDO6; + case TPS65911_REG_LDO7: + return TPS65911_LDO7; + case TPS65911_REG_LDO8: + return TPS65911_LDO8; + default: + return -EINVAL; + } +} + static int tps65910_is_enabled(struct regulator_dev *dev) { struct tps65910_reg *pmic = rdev_get_drvdata(dev); int reg, value, id = rdev_get_id(dev); - reg = tps65910_get_ctrl_register(id); + reg = pmic->get_ctrl_reg(id); if (reg < 0) return reg; @@ -322,7 +433,7 @@ static int tps65910_enable(struct regulator_dev *dev) struct tps65910 *mfd = pmic->mfd; int reg, id = rdev_get_id(dev); - reg = tps65910_get_ctrl_register(id); + reg = pmic->get_ctrl_reg(id); if (reg < 0) return reg; @@ -335,7 +446,7 @@ static int tps65910_disable(struct regulator_dev *dev) struct tps65910 *mfd = pmic->mfd; int reg, id = rdev_get_id(dev); - reg = tps65910_get_ctrl_register(id); + reg = pmic->get_ctrl_reg(id); if (reg < 0) return reg; @@ -348,7 +459,8 @@ static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode) struct tps65910_reg *pmic = rdev_get_drvdata(dev); struct tps65910 *mfd = pmic->mfd; int reg, value, id = rdev_get_id(dev); - reg = tps65910_get_ctrl_register(id); + + reg = pmic->get_ctrl_reg(id); if (reg < 0) return reg; @@ -371,7 +483,7 @@ static unsigned int tps65910_get_mode(struct regulator_dev *dev) struct tps65910_reg *pmic = rdev_get_drvdata(dev); int reg, value, id = rdev_get_id(dev); - reg = tps65910_get_ctrl_register(id); + reg = pmic->get_ctrl_reg(id); if (reg < 0) return reg; @@ -391,7 +503,7 @@ static int tps65910_get_voltage_dcdc(struct regulator_dev *dev) { struct tps65910_reg *pmic = rdev_get_drvdata(dev); int id = rdev_get_id(dev), voltage = 0; - int opvsel = 0, srvsel = 0, mult = 0, sr = 0; + int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0; switch (id) { case TPS65910_REG_VDD1: @@ -402,6 +514,7 @@ static int tps65910_get_voltage_dcdc(struct regulator_dev *dev) sr = opvsel & VDD1_OP_CMD_MASK; opvsel &= VDD1_OP_SEL_MASK; srvsel &= VDD1_SR_SEL_MASK; + vselmax = 75; break; case TPS65910_REG_VDD2: opvsel = tps65910_reg_read(pmic, TPS65910_VDD2_OP); @@ -411,6 +524,15 @@ static int tps65910_get_voltage_dcdc(struct regulator_dev *dev) sr = opvsel & VDD2_OP_CMD_MASK; opvsel &= VDD2_OP_SEL_MASK; srvsel &= VDD2_SR_SEL_MASK; + vselmax = 75; + break; + case TPS65911_REG_VDDCTRL: + opvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_OP); + srvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_SR); + sr = opvsel & VDDCTRL_OP_CMD_MASK; + opvsel &= VDDCTRL_OP_SEL_MASK; + srvsel &= VDDCTRL_SR_SEL_MASK; + vselmax = 64; break; } @@ -419,17 +541,21 @@ static int tps65910_get_voltage_dcdc(struct regulator_dev *dev) mult=1; if (sr) { - /* Valid range is 3-75 so normalise */ - if (srvsel < 3) srvsel = 3; - if (srvsel > 75) srvsel = 75; + /* normalise to valid range */ + if (srvsel < 3) + srvsel = 3; + if (srvsel > vselmax) + srvsel = vselmax; srvsel -= 3; voltage = (srvsel * VDD1_2_OFFSET + VDD1_2_MIN_VOLT) * 100; } else { - /* Valid range is 3-75 so normalise */ - if (opvsel < 3) opvsel = 3; - if (opvsel > 75) opvsel = 75; + /* normalise to valid range*/ + if (opvsel < 3) + opvsel = 3; + if (opvsel > vselmax) + opvsel = vselmax; opvsel -= 3; voltage = (opvsel * VDD1_2_OFFSET + VDD1_2_MIN_VOLT) * 100; @@ -445,7 +571,7 @@ static int tps65910_get_voltage(struct regulator_dev *dev) struct tps65910_reg *pmic = rdev_get_drvdata(dev); int reg, value, id = rdev_get_id(dev), voltage = 0; - reg = tps65910_get_ctrl_register(id); + reg = pmic->get_ctrl_reg(id); if (reg < 0) return reg; @@ -480,29 +606,88 @@ static int tps65910_get_voltage_vdd3(struct regulator_dev *dev) return 5 * 1000 * 1000; } +static int tps65911_get_voltage(struct regulator_dev *dev) +{ + struct tps65910_reg *pmic = rdev_get_drvdata(dev); + int step_mv, id = rdev_get_id(dev); + u8 value, reg; + + reg = pmic->get_ctrl_reg(id); + + value = tps65910_reg_read(pmic, reg); + + switch (id) { + case TPS65911_REG_LDO1: + case TPS65911_REG_LDO2: + case TPS65911_REG_LDO4: + value &= LDO1_SEL_MASK; + value >>= LDO_SEL_SHIFT; + /* The first 5 values of the selector correspond to 1V */ + if (value < 5) + value = 0; + else + value -= 4; + + step_mv = 50; + break; + case TPS65911_REG_LDO3: + case TPS65911_REG_LDO5: + case TPS65911_REG_LDO6: + case TPS65911_REG_LDO7: + case TPS65911_REG_LDO8: + value &= LDO3_SEL_MASK; + value >>= LDO_SEL_SHIFT; + /* The first 3 values of the selector correspond to 1V */ + if (value < 3) + value = 0; + else + value -= 2; + + step_mv = 100; + break; + case TPS65910_REG_VIO: + return pmic->info[id]->table[value] * 1000; + break; + default: + return -EINVAL; + } + + return (LDO_MIN_VOLT + value * step_mv) * 1000; +} + static int tps65910_set_voltage_dcdc(struct regulator_dev *dev, unsigned selector) { struct tps65910_reg *pmic = rdev_get_drvdata(dev); int id = rdev_get_id(dev), vsel; - int dcdc_mult; + int dcdc_mult = 0; - /* Split vsel into appropriate registers */ - dcdc_mult = (selector / VDD1_2_NUM_VOLTS) + 1; - if (dcdc_mult == 1) dcdc_mult--; - - vsel = (selector % VDD1_2_NUM_VOLTS) + 3; + switch (id) { + case TPS65910_REG_VDD1: + dcdc_mult = (selector / VDD1_2_NUM_VOLTS) + 1; + if (dcdc_mult == 1) + dcdc_mult--; + vsel = (selector % VDD1_2_NUM_VOLTS) + 3; - if (id == TPS65910_REG_VDD1) { tps65910_modify_bits(pmic, TPS65910_VDD1, (dcdc_mult << VDD1_VGAIN_SEL_SHIFT), VDD1_VGAIN_SEL_MASK); tps65910_reg_write(pmic, TPS65910_VDD1_OP, vsel); - } else { + break; + case TPS65910_REG_VDD2: + dcdc_mult = (selector / VDD1_2_NUM_VOLTS) + 1; + if (dcdc_mult == 1) + dcdc_mult--; + vsel = (selector % VDD1_2_NUM_VOLTS) + 3; + tps65910_modify_bits(pmic, TPS65910_VDD2, (dcdc_mult << VDD2_VGAIN_SEL_SHIFT), VDD1_VGAIN_SEL_MASK); tps65910_reg_write(pmic, TPS65910_VDD2_OP, vsel); + break; + case TPS65911_REG_VDDCTRL: + vsel = selector; + tps65910_reg_write(pmic, TPS65911_VDDCTRL_OP, vsel); } return 0; @@ -513,7 +698,7 @@ static int tps65910_set_voltage(struct regulator_dev *dev, unsigned selector) struct tps65910_reg *pmic = rdev_get_drvdata(dev); int reg, id = rdev_get_id(dev); - reg = tps65910_get_ctrl_register(id); + reg = pmic->get_ctrl_reg(id); if (reg < 0) return reg; @@ -534,14 +719,49 @@ static int tps65910_set_voltage(struct regulator_dev *dev, unsigned selector) return -EINVAL; } +static int tps65911_set_voltage(struct regulator_dev *dev, unsigned selector) +{ + struct tps65910_reg *pmic = rdev_get_drvdata(dev); + int reg, id = rdev_get_id(dev); + + reg = pmic->get_ctrl_reg(id); + if (reg < 0) + return reg; + + switch (id) { + case TPS65911_REG_LDO1: + case TPS65911_REG_LDO2: + case TPS65911_REG_LDO4: + return tps65910_modify_bits(pmic, reg, + (selector << LDO_SEL_SHIFT), LDO1_SEL_MASK); + case TPS65911_REG_LDO3: + case TPS65911_REG_LDO5: + case TPS65911_REG_LDO6: + case TPS65911_REG_LDO7: + case TPS65911_REG_LDO8: + case TPS65910_REG_VIO: + return tps65910_modify_bits(pmic, reg, + (selector << LDO_SEL_SHIFT), LDO3_SEL_MASK); + } + + return -EINVAL; +} + + static int tps65910_list_voltage_dcdc(struct regulator_dev *dev, unsigned selector) { - int mult, volt; - - mult = (selector / VDD1_2_NUM_VOLTS) + 1; + int volt, mult = 1, id = rdev_get_id(dev); - volt = VDD1_2_MIN_VOLT + (selector % VDD1_2_NUM_VOLTS) * VDD1_2_OFFSET; + switch (id) { + case TPS65910_REG_VDD1: + case TPS65910_REG_VDD2: + mult = (selector / VDD1_2_NUM_VOLTS) + 1; + volt = VDD1_2_MIN_VOLT + + (selector % VDD1_2_NUM_VOLTS) * VDD1_2_OFFSET; + case TPS65911_REG_VDDCTRL: + volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET); + } return volt * 100 * mult; } @@ -563,6 +783,45 @@ static int tps65910_list_voltage(struct regulator_dev *dev, return voltage; } +static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector) +{ + struct tps65910_reg *pmic = rdev_get_drvdata(dev); + int step_mv = 0, id = rdev_get_id(dev); + + switch(id) { + case TPS65911_REG_LDO1: + case TPS65911_REG_LDO2: + case TPS65911_REG_LDO4: + /* The first 5 values of the selector correspond to 1V */ + if (selector < 5) + selector = 0; + else + selector -= 4; + + step_mv = 50; + break; + case TPS65911_REG_LDO3: + case TPS65911_REG_LDO5: + case TPS65911_REG_LDO6: + case TPS65911_REG_LDO7: + case TPS65911_REG_LDO8: + /* The first 3 values of the selector correspond to 1V */ + if (selector < 3) + selector = 0; + else + selector -= 2; + + step_mv = 100; + break; + case TPS65910_REG_VIO: + return pmic->info[id]->table[selector] * 1000; + default: + return -EINVAL; + } + + return (LDO_MIN_VOLT + selector * step_mv) * 1000; +} + /* Regulator ops (except VRTC) */ static struct regulator_ops tps65910_ops_dcdc = { .is_enabled = tps65910_is_enabled, @@ -596,10 +855,21 @@ static struct regulator_ops tps65910_ops = { .list_voltage = tps65910_list_voltage, }; +static struct regulator_ops tps65911_ops = { + .is_enabled = tps65910_is_enabled, + .enable = tps65910_enable, + .disable = tps65910_disable, + .set_mode = tps65910_set_mode, + .get_mode = tps65910_get_mode, + .get_voltage = tps65911_get_voltage, + .set_voltage_sel = tps65911_set_voltage, + .list_voltage = tps65911_list_voltage, +}; + static __devinit int tps65910_probe(struct platform_device *pdev) { struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent); - struct tps_info *info = tps65910_regs; + struct tps_info *info; struct regulator_init_data *reg_data; struct regulator_dev *rdev; struct tps65910_reg *pmic; @@ -624,6 +894,18 @@ static __devinit int tps65910_probe(struct platform_device *pdev) tps65910_set_bits(pmic->mfd, TPS65910_DEVCTRL, DEVCTRL_SR_CTL_I2C_SEL_MASK); + switch(tps65910_chip_id(tps65910)) { + case TPS65910: + pmic->get_ctrl_reg = &tps65910_get_ctrl_register; + info = tps65910_regs; + case TPS65911: + pmic->get_ctrl_reg = &tps65911_get_ctrl_register; + info = tps65911_regs; + default: + pr_err("Invalid tps chip version\n"); + return -ENODEV; + } + for (i = 0; i < TPS65910_NUM_REGULATOR; i++, info++, reg_data++) { /* Register the regulators */ pmic->info[i] = info; @@ -632,12 +914,19 @@ static __devinit int tps65910_probe(struct platform_device *pdev) pmic->desc[i].id = i; pmic->desc[i].n_voltages = info->table_len; - if ((i == TPS65910_REG_VDD1) || (i == TPS65910_REG_VDD2)) + if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) { pmic->desc[i].ops = &tps65910_ops_dcdc; - else if (i == TPS65910_REG_VDD3) - pmic->desc[i].ops = &tps65910_ops_vdd3; - else - pmic->desc[i].ops = &tps65910_ops; + } else if (i == TPS65910_REG_VDD3) { + if (tps65910_chip_id(tps65910) == TPS65910) + pmic->desc[i].ops = &tps65910_ops_vdd3; + else + pmic->desc[i].ops = &tps65910_ops_dcdc; + } else { + if (tps65910_chip_id(tps65910) == TPS65910) + pmic->desc[i].ops = &tps65910_ops; + else + pmic->desc[i].ops = &tps65911_ops; + } pmic->desc[i].type = REGULATOR_VOLTAGE; pmic->desc[i].owner = THIS_MODULE; |