| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Saravanan Sekar | 805 | 85.91% | 1 | 12.50% |
| Robert Marko | 66 | 7.04% | 3 | 37.50% |
| Axel Lin | 60 | 6.40% | 2 | 25.00% |
| Doug Anderson | 5 | 0.53% | 1 | 12.50% |
| Uwe Kleine-König | 1 | 0.11% | 1 | 12.50% |
| Total | 937 | 8 |
// SPDX-License-Identifier: GPL-2.0+ // // mp5416.c - regulator driver for mps mp5416 // // Copyright 2020 Monolithic Power Systems, Inc // // Author: Saravanan Sekar <sravanhome@gmail.com> #include <linux/err.h> #include <linux/i2c.h> #include <linux/init.h> #include <linux/module.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> #define MP5416_REG_CTL0 0x00 #define MP5416_REG_CTL1 0x01 #define MP5416_REG_CTL2 0x02 #define MP5416_REG_ILIM 0x03 #define MP5416_REG_BUCK1 0x04 #define MP5416_REG_BUCK2 0x05 #define MP5416_REG_BUCK3 0x06 #define MP5416_REG_BUCK4 0x07 #define MP5416_REG_LDO1 0x08 #define MP5416_REG_LDO2 0x09 #define MP5416_REG_LDO3 0x0a #define MP5416_REG_LDO4 0x0b #define MP5416_REGULATOR_EN BIT(7) #define MP5416_MASK_VSET 0x7f #define MP5416_MASK_BUCK1_ILIM 0xc0 #define MP5416_MASK_BUCK2_ILIM 0x0c #define MP5416_MASK_BUCK3_ILIM 0x30 #define MP5416_MASK_BUCK4_ILIM 0x03 #define MP5416_MASK_DVS_SLEWRATE 0xc0 /* values in uV */ #define MP5416_VOLT1_MIN 600000 #define MP5416_VOLT1_MAX 2187500 #define MP5416_VOLT1_STEP 12500 #define MP5416_VOLT2_MIN 800000 #define MP5416_VOLT2_MAX 3975000 #define MP5416_VOLT2_STEP 25000 #define MP5416_VOLT1_RANGE \ ((MP5416_VOLT1_MAX - MP5416_VOLT1_MIN)/MP5416_VOLT1_STEP + 1) #define MP5416_VOLT2_RANGE \ ((MP5416_VOLT2_MAX - MP5416_VOLT2_MIN)/MP5416_VOLT2_STEP + 1) #define MP5416BUCK(_name, _id, _ilim, _dreg, _dval, _vsel) \ [MP5416_BUCK ## _id] = { \ .id = MP5416_BUCK ## _id, \ .name = _name, \ .of_match = _name, \ .regulators_node = "regulators", \ .ops = &mp5416_buck_ops, \ .min_uV = MP5416_VOLT ##_vsel## _MIN, \ .uV_step = MP5416_VOLT ##_vsel## _STEP, \ .n_voltages = MP5416_VOLT ##_vsel## _RANGE, \ .curr_table = _ilim, \ .n_current_limits = ARRAY_SIZE(_ilim), \ .csel_reg = MP5416_REG_ILIM, \ .csel_mask = MP5416_MASK_BUCK ## _id ##_ILIM, \ .vsel_reg = MP5416_REG_BUCK ## _id, \ .vsel_mask = MP5416_MASK_VSET, \ .enable_reg = MP5416_REG_BUCK ## _id, \ .enable_mask = MP5416_REGULATOR_EN, \ .ramp_reg = MP5416_REG_CTL2, \ .ramp_mask = MP5416_MASK_DVS_SLEWRATE, \ .ramp_delay_table = mp5416_buck_ramp_table, \ .n_ramp_values = ARRAY_SIZE(mp5416_buck_ramp_table), \ .active_discharge_on = _dval, \ .active_discharge_reg = _dreg, \ .active_discharge_mask = _dval, \ .owner = THIS_MODULE, \ } #define MP5416LDO(_name, _id, _dval) \ [MP5416_LDO ## _id] = { \ .id = MP5416_LDO ## _id, \ .name = _name, \ .of_match = _name, \ .regulators_node = "regulators", \ .ops = &mp5416_ldo_ops, \ .min_uV = MP5416_VOLT2_MIN, \ .uV_step = MP5416_VOLT2_STEP, \ .n_voltages = MP5416_VOLT2_RANGE, \ .vsel_reg = MP5416_REG_LDO ##_id, \ .vsel_mask = MP5416_MASK_VSET, \ .enable_reg = MP5416_REG_LDO ##_id, \ .enable_mask = MP5416_REGULATOR_EN, \ .active_discharge_on = _dval, \ .active_discharge_reg = MP5416_REG_CTL2, \ .active_discharge_mask = _dval, \ .owner = THIS_MODULE, \ } enum mp5416_regulators { MP5416_BUCK1, MP5416_BUCK2, MP5416_BUCK3, MP5416_BUCK4, MP5416_LDO1, MP5416_LDO2, MP5416_LDO3, MP5416_LDO4, MP5416_MAX_REGULATORS, }; static const struct regmap_config mp5416_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0x0d, }; /* Current limits array (in uA) * ILIM1 & ILIM3 */ static const unsigned int mp5416_I_limits1[] = { 3800000, 4600000, 5600000, 6800000 }; /* ILIM2 & ILIM4 */ static const unsigned int mp5416_I_limits2[] = { 2200000, 3200000, 4200000, 5200000 }; /* * DVS ramp rate BUCK1 to BUCK4 * 00: 32mV/us * 01: 16mV/us * 10: 8mV/us * 11: 4mV/us */ static const unsigned int mp5416_buck_ramp_table[] = { 32000, 16000, 8000, 4000 }; static const struct regulator_ops mp5416_ldo_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_active_discharge = regulator_set_active_discharge_regmap, }; static const struct regulator_ops mp5416_buck_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear, .map_voltage = regulator_map_voltage_linear, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_sel = regulator_set_voltage_sel_regmap, .set_active_discharge = regulator_set_active_discharge_regmap, .get_current_limit = regulator_get_current_limit_regmap, .set_current_limit = regulator_set_current_limit_regmap, .set_ramp_delay = regulator_set_ramp_delay_regmap, }; static struct regulator_desc mp5416_regulators_desc[MP5416_MAX_REGULATORS] = { MP5416BUCK("buck1", 1, mp5416_I_limits1, MP5416_REG_CTL1, BIT(0), 1), MP5416BUCK("buck2", 2, mp5416_I_limits2, MP5416_REG_CTL1, BIT(1), 2), MP5416BUCK("buck3", 3, mp5416_I_limits1, MP5416_REG_CTL1, BIT(2), 1), MP5416BUCK("buck4", 4, mp5416_I_limits2, MP5416_REG_CTL2, BIT(5), 2), MP5416LDO("ldo1", 1, BIT(4)), MP5416LDO("ldo2", 2, BIT(3)), MP5416LDO("ldo3", 3, BIT(2)), MP5416LDO("ldo4", 4, BIT(1)), }; static struct regulator_desc mp5496_regulators_desc[MP5416_MAX_REGULATORS] = { MP5416BUCK("buck1", 1, mp5416_I_limits1, MP5416_REG_CTL1, BIT(0), 1), MP5416BUCK("buck2", 2, mp5416_I_limits2, MP5416_REG_CTL1, BIT(1), 1), MP5416BUCK("buck3", 3, mp5416_I_limits1, MP5416_REG_CTL1, BIT(2), 1), MP5416BUCK("buck4", 4, mp5416_I_limits2, MP5416_REG_CTL2, BIT(5), 1), MP5416LDO("ldo1", 1, BIT(4)), MP5416LDO("ldo2", 2, BIT(3)), MP5416LDO("ldo3", 3, BIT(2)), MP5416LDO("ldo4", 4, BIT(1)), }; static int mp5416_i2c_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct regulator_config config = { NULL, }; static const struct regulator_desc *desc; struct regulator_dev *rdev; struct regmap *regmap; int i; regmap = devm_regmap_init_i2c(client, &mp5416_regmap_config); if (IS_ERR(regmap)) { dev_err(dev, "Failed to allocate regmap!\n"); return PTR_ERR(regmap); } desc = of_device_get_match_data(dev); if (!desc) return -ENODEV; config.dev = dev; config.regmap = regmap; for (i = 0; i < MP5416_MAX_REGULATORS; i++) { rdev = devm_regulator_register(dev, &desc[i], &config); if (IS_ERR(rdev)) { dev_err(dev, "Failed to register regulator!\n"); return PTR_ERR(rdev); } } return 0; } static const struct of_device_id mp5416_of_match[] = { { .compatible = "mps,mp5416", .data = &mp5416_regulators_desc }, { .compatible = "mps,mp5496", .data = &mp5496_regulators_desc }, {}, }; MODULE_DEVICE_TABLE(of, mp5416_of_match); static const struct i2c_device_id mp5416_id[] = { { "mp5416", }, { "mp5496", }, { }, }; MODULE_DEVICE_TABLE(i2c, mp5416_id); static struct i2c_driver mp5416_regulator_driver = { .driver = { .name = "mp5416", .probe_type = PROBE_PREFER_ASYNCHRONOUS, .of_match_table = of_match_ptr(mp5416_of_match), }, .probe = mp5416_i2c_probe, .id_table = mp5416_id, }; module_i2c_driver(mp5416_regulator_driver); MODULE_AUTHOR("Saravanan Sekar <sravanhome@gmail.com>"); MODULE_DESCRIPTION("MP5416 PMIC regulator driver"); MODULE_LICENSE("GPL");
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