diff options
| -rw-r--r-- | drivers/regulator/qcom_spmi-regulator.c | 115 |
1 files changed, 114 insertions, 1 deletions
diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c index a2d0292a92fd..04e9845a9300 100644 --- a/drivers/regulator/qcom_spmi-regulator.c +++ b/drivers/regulator/qcom_spmi-regulator.c @@ -99,6 +99,7 @@ enum spmi_regulator_logical_type { SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO, SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426, SPMI_REGULATOR_LOGICAL_TYPE_HFS430, + SPMI_REGULATOR_LOGICAL_TYPE_HFSMPS, }; enum spmi_regulator_type { @@ -166,6 +167,7 @@ enum spmi_regulator_subtype { SPMI_REGULATOR_SUBTYPE_HFS430 = 0x0a, SPMI_REGULATOR_SUBTYPE_HT_P150 = 0x35, SPMI_REGULATOR_SUBTYPE_HT_P600 = 0x3d, + SPMI_REGULATOR_SUBTYPE_HFSMPS_510 = 0x0a, }; enum spmi_common_regulator_registers { @@ -193,6 +195,14 @@ enum spmi_ftsmps426_regulator_registers { SPMI_FTSMPS426_REG_VOLTAGE_ULS_MSB = 0x69, }; +/* + * Third common register layout + */ +enum spmi_hfsmps_regulator_registers { + SPMI_HFSMPS_REG_STEP_CTRL = 0x3c, + SPMI_HFSMPS_REG_PULL_DOWN = 0xa0, +}; + enum spmi_vs_registers { SPMI_VS_REG_OCP = 0x4a, SPMI_VS_REG_SOFT_START = 0x4c, @@ -260,6 +270,15 @@ enum spmi_common_control_register_index { #define SPMI_FTSMPS426_MODE_MASK 0x07 +/* Third common regulator mode register values */ +#define SPMI_HFSMPS_MODE_BYPASS_MASK 2 +#define SPMI_HFSMPS_MODE_RETENTION_MASK 3 +#define SPMI_HFSMPS_MODE_LPM_MASK 4 +#define SPMI_HFSMPS_MODE_AUTO_MASK 6 +#define SPMI_HFSMPS_MODE_HPM_MASK 7 + +#define SPMI_HFSMPS_MODE_MASK 0x07 + /* Common regulator pull down control register layout */ #define SPMI_COMMON_PULL_DOWN_ENABLE_MASK 0x80 @@ -305,6 +324,9 @@ enum spmi_common_control_register_index { #define SPMI_FTSMPS_STEP_MARGIN_NUM 4 #define SPMI_FTSMPS_STEP_MARGIN_DEN 5 +/* slew_rate has units of uV/us. */ +#define SPMI_HFSMPS_SLEW_RATE_38p4 38400 + #define SPMI_FTSMPS426_STEP_CTRL_DELAY_MASK 0x03 #define SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT 0 @@ -1062,6 +1084,23 @@ static unsigned int spmi_regulator_ftsmps426_get_mode(struct regulator_dev *rdev } } +static unsigned int spmi_regulator_hfsmps_get_mode(struct regulator_dev *rdev) +{ + struct spmi_regulator *vreg = rdev_get_drvdata(rdev); + u8 reg; + + spmi_vreg_read(vreg, SPMI_COMMON_REG_MODE, ®, 1); + + switch (reg) { + case SPMI_HFSMPS_MODE_HPM_MASK: + return REGULATOR_MODE_NORMAL; + case SPMI_HFSMPS_MODE_AUTO_MASK: + return REGULATOR_MODE_FAST; + default: + return REGULATOR_MODE_IDLE; + } +} + static int spmi_regulator_common_set_mode(struct regulator_dev *rdev, unsigned int mode) { @@ -1109,6 +1148,30 @@ spmi_regulator_ftsmps426_set_mode(struct regulator_dev *rdev, unsigned int mode) } static int +spmi_regulator_hfsmps_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + struct spmi_regulator *vreg = rdev_get_drvdata(rdev); + u8 mask = SPMI_HFSMPS_MODE_MASK; + u8 val; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + val = SPMI_HFSMPS_MODE_HPM_MASK; + break; + case REGULATOR_MODE_FAST: + val = SPMI_HFSMPS_MODE_AUTO_MASK; + break; + case REGULATOR_MODE_IDLE: + val = SPMI_HFSMPS_MODE_LPM_MASK; + break; + default: + return -EINVAL; + } + + return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_MODE, val, mask); +} + +static int spmi_regulator_common_set_load(struct regulator_dev *rdev, int load_uA) { struct spmi_regulator *vreg = rdev_get_drvdata(rdev); @@ -1131,6 +1194,15 @@ static int spmi_regulator_common_set_pull_down(struct regulator_dev *rdev) mask, mask); } +static int spmi_regulator_hfsmps_set_pull_down(struct regulator_dev *rdev) +{ + struct spmi_regulator *vreg = rdev_get_drvdata(rdev); + unsigned int mask = SPMI_COMMON_PULL_DOWN_ENABLE_MASK; + + return spmi_vreg_update_bits(vreg, SPMI_HFSMPS_REG_PULL_DOWN, + mask, mask); +} + static int spmi_regulator_common_set_soft_start(struct regulator_dev *rdev) { struct spmi_regulator *vreg = rdev_get_drvdata(rdev); @@ -1465,6 +1537,21 @@ static const struct regulator_ops spmi_hfs430_ops = { .get_mode = spmi_regulator_ftsmps426_get_mode, }; +static const struct regulator_ops spmi_hfsmps_ops = { + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, + .set_voltage_sel = spmi_regulator_ftsmps426_set_voltage, + .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel, + .get_voltage_sel = spmi_regulator_ftsmps426_get_voltage, + .map_voltage = spmi_regulator_single_map_voltage, + .list_voltage = spmi_regulator_common_list_voltage, + .set_mode = spmi_regulator_hfsmps_set_mode, + .get_mode = spmi_regulator_hfsmps_get_mode, + .set_load = spmi_regulator_common_set_load, + .set_pull_down = spmi_regulator_hfsmps_set_pull_down, +}; + /* Maximum possible digital major revision value */ #define INF 0xFF @@ -1473,7 +1560,8 @@ static const struct spmi_regulator_mapping supported_regulators[] = { SPMI_VREG(LDO, HT_P600, 0, INF, HFS430, hfs430, ht_p600, 10000), SPMI_VREG(LDO, HT_P150, 0, INF, HFS430, hfs430, ht_p150, 10000), SPMI_VREG(BUCK, GP_CTL, 0, INF, SMPS, smps, smps, 100000), - SPMI_VREG(BUCK, HFS430, 0, INF, HFS430, hfs430, hfs430, 10000), + SPMI_VREG(BUCK, HFS430, 0, 3, HFS430, hfs430, hfs430, 10000), + SPMI_VREG(BUCK, HFSMPS_510, 4, INF, HFSMPS, hfsmps, hfs430, 100000), SPMI_VREG(LDO, N300, 0, INF, LDO, ldo, nldo1, 10000), SPMI_VREG(LDO, N600, 0, 0, LDO, ldo, nldo2, 10000), SPMI_VREG(LDO, N1200, 0, 0, LDO, ldo, nldo2, 10000), @@ -1696,6 +1784,26 @@ static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg, return ret; } +static int spmi_regulator_init_slew_rate_hfsmps(struct spmi_regulator *vreg) +{ + int ret; + u8 reg = 0; + int delay; + + ret = spmi_vreg_read(vreg, SPMI_HFSMPS_REG_STEP_CTRL, ®, 1); + if (ret) { + dev_err(vreg->dev, "spmi read failed, ret=%d\n", ret); + return ret; + } + + delay = reg & SPMI_FTSMPS426_STEP_CTRL_DELAY_MASK; + delay >>= SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT; + + vreg->slew_rate = SPMI_HFSMPS_SLEW_RATE_38p4 >> delay; + + return ret; +} + static int spmi_regulator_init_registers(struct spmi_regulator *vreg, const struct spmi_regulator_init_data *data) { @@ -1846,6 +1954,11 @@ static int spmi_regulator_of_parse(struct device_node *node, if (ret) return ret; break; + case SPMI_REGULATOR_LOGICAL_TYPE_HFSMPS: + ret = spmi_regulator_init_slew_rate_hfsmps(vreg); + if (ret) + return ret; + break; default: break; } |