| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Bartosz Golaszewski | 1496 | 85.58% | 3 | 33.33% |
| Axel Lin | 247 | 14.13% | 5 | 55.56% |
| Nathan Chancellor | 5 | 0.29% | 1 | 11.11% |
| Total | 1748 | 9 |
// SPDX-License-Identifier: GPL-2.0 // // Copyright (C) 2018 BayLibre SAS // Author: Bartosz Golaszewski <bgolaszewski@baylibre.com> // // Regulator driver for MAXIM 77650/77651 charger/power-supply. #include <linux/of.h> #include <linux/mfd/max77650.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/regulator/driver.h> #define MAX77650_REGULATOR_EN_CTRL_MASK GENMASK(3, 0) #define MAX77650_REGULATOR_EN_CTRL_BITS(_reg) \ ((_reg) & MAX77650_REGULATOR_EN_CTRL_MASK) #define MAX77650_REGULATOR_ENABLED GENMASK(2, 1) #define MAX77650_REGULATOR_DISABLED BIT(2) #define MAX77650_REGULATOR_V_LDO_MASK GENMASK(6, 0) #define MAX77650_REGULATOR_V_SBB_MASK GENMASK(5, 0) #define MAX77651_REGULATOR_V_SBB1_MASK GENMASK(5, 2) #define MAX77651_REGULATOR_V_SBB1_RANGE_MASK GENMASK(1, 0) #define MAX77650_REGULATOR_AD_MASK BIT(3) #define MAX77650_REGULATOR_AD_DISABLED 0x00 #define MAX77650_REGULATOR_AD_ENABLED BIT(3) #define MAX77650_REGULATOR_CURR_LIM_MASK GENMASK(7, 6) enum { MAX77650_REGULATOR_ID_LDO = 0, MAX77650_REGULATOR_ID_SBB0, MAX77650_REGULATOR_ID_SBB1, MAX77650_REGULATOR_ID_SBB2, MAX77650_REGULATOR_NUM_REGULATORS, }; struct max77650_regulator_desc { struct regulator_desc desc; unsigned int regA; unsigned int regB; }; static struct max77650_regulator_desc max77651_SBB1_desc; static const unsigned int max77651_sbb1_volt_range_sel[] = { 0x0, 0x1, 0x2, 0x3 }; static const struct regulator_linear_range max77651_sbb1_volt_ranges[] = { /* range index 0 */ REGULATOR_LINEAR_RANGE(2400000, 0x00, 0x0f, 50000), /* range index 1 */ REGULATOR_LINEAR_RANGE(3200000, 0x00, 0x0f, 50000), /* range index 2 */ REGULATOR_LINEAR_RANGE(4000000, 0x00, 0x0f, 50000), /* range index 3 */ REGULATOR_LINEAR_RANGE(4800000, 0x00, 0x09, 50000), }; static const unsigned int max77650_current_limit_table[] = { 1000000, 866000, 707000, 500000, }; static int max77650_regulator_is_enabled(struct regulator_dev *rdev) { struct max77650_regulator_desc *rdesc; struct regmap *map; int val, rv, en; rdesc = rdev_get_drvdata(rdev); map = rdev_get_regmap(rdev); rv = regmap_read(map, rdesc->regB, &val); if (rv) return rv; en = MAX77650_REGULATOR_EN_CTRL_BITS(val); return en != MAX77650_REGULATOR_DISABLED; } static int max77650_regulator_enable(struct regulator_dev *rdev) { struct max77650_regulator_desc *rdesc; struct regmap *map; rdesc = rdev_get_drvdata(rdev); map = rdev_get_regmap(rdev); return regmap_update_bits(map, rdesc->regB, MAX77650_REGULATOR_EN_CTRL_MASK, MAX77650_REGULATOR_ENABLED); } static int max77650_regulator_disable(struct regulator_dev *rdev) { struct max77650_regulator_desc *rdesc; struct regmap *map; rdesc = rdev_get_drvdata(rdev); map = rdev_get_regmap(rdev); return regmap_update_bits(map, rdesc->regB, MAX77650_REGULATOR_EN_CTRL_MASK, MAX77650_REGULATOR_DISABLED); } static const struct regulator_ops max77650_regulator_LDO_ops = { .is_enabled = max77650_regulator_is_enabled, .enable = max77650_regulator_enable, .disable = max77650_regulator_disable, .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 max77650_regulator_SBB_ops = { .is_enabled = max77650_regulator_is_enabled, .enable = max77650_regulator_enable, .disable = max77650_regulator_disable, .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, .get_current_limit = regulator_get_current_limit_regmap, .set_current_limit = regulator_set_current_limit_regmap, .set_active_discharge = regulator_set_active_discharge_regmap, }; /* Special case for max77651 SBB1 - pickable linear-range voltage mapping. */ static const struct regulator_ops max77651_SBB1_regulator_ops = { .is_enabled = max77650_regulator_is_enabled, .enable = max77650_regulator_enable, .disable = max77650_regulator_disable, .list_voltage = regulator_list_voltage_pickable_linear_range, .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, .set_voltage_sel = regulator_set_voltage_sel_pickable_regmap, .get_current_limit = regulator_get_current_limit_regmap, .set_current_limit = regulator_set_current_limit_regmap, .set_active_discharge = regulator_set_active_discharge_regmap, }; static struct max77650_regulator_desc max77650_LDO_desc = { .desc = { .name = "ldo", .of_match = of_match_ptr("ldo"), .regulators_node = of_match_ptr("regulators"), .supply_name = "in-ldo", .id = MAX77650_REGULATOR_ID_LDO, .ops = &max77650_regulator_LDO_ops, .min_uV = 1350000, .uV_step = 12500, .n_voltages = 128, .vsel_step = 1, .vsel_mask = MAX77650_REGULATOR_V_LDO_MASK, .vsel_reg = MAX77650_REG_CNFG_LDO_A, .active_discharge_off = MAX77650_REGULATOR_AD_DISABLED, .active_discharge_on = MAX77650_REGULATOR_AD_ENABLED, .active_discharge_mask = MAX77650_REGULATOR_AD_MASK, .active_discharge_reg = MAX77650_REG_CNFG_LDO_B, .enable_time = 100, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, }, .regA = MAX77650_REG_CNFG_LDO_A, .regB = MAX77650_REG_CNFG_LDO_B, }; static struct max77650_regulator_desc max77650_SBB0_desc = { .desc = { .name = "sbb0", .of_match = of_match_ptr("sbb0"), .regulators_node = of_match_ptr("regulators"), .supply_name = "in-sbb0", .id = MAX77650_REGULATOR_ID_SBB0, .ops = &max77650_regulator_SBB_ops, .min_uV = 800000, .uV_step = 25000, .n_voltages = 64, .vsel_step = 1, .vsel_mask = MAX77650_REGULATOR_V_SBB_MASK, .vsel_reg = MAX77650_REG_CNFG_SBB0_A, .active_discharge_off = MAX77650_REGULATOR_AD_DISABLED, .active_discharge_on = MAX77650_REGULATOR_AD_ENABLED, .active_discharge_mask = MAX77650_REGULATOR_AD_MASK, .active_discharge_reg = MAX77650_REG_CNFG_SBB0_B, .enable_time = 100, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .csel_reg = MAX77650_REG_CNFG_SBB0_A, .csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK, .curr_table = max77650_current_limit_table, .n_current_limits = ARRAY_SIZE(max77650_current_limit_table), }, .regA = MAX77650_REG_CNFG_SBB0_A, .regB = MAX77650_REG_CNFG_SBB0_B, }; static struct max77650_regulator_desc max77650_SBB1_desc = { .desc = { .name = "sbb1", .of_match = of_match_ptr("sbb1"), .regulators_node = of_match_ptr("regulators"), .supply_name = "in-sbb1", .id = MAX77650_REGULATOR_ID_SBB1, .ops = &max77650_regulator_SBB_ops, .min_uV = 800000, .uV_step = 12500, .n_voltages = 64, .vsel_step = 1, .vsel_mask = MAX77650_REGULATOR_V_SBB_MASK, .vsel_reg = MAX77650_REG_CNFG_SBB1_A, .active_discharge_off = MAX77650_REGULATOR_AD_DISABLED, .active_discharge_on = MAX77650_REGULATOR_AD_ENABLED, .active_discharge_mask = MAX77650_REGULATOR_AD_MASK, .active_discharge_reg = MAX77650_REG_CNFG_SBB1_B, .enable_time = 100, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .csel_reg = MAX77650_REG_CNFG_SBB1_A, .csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK, .curr_table = max77650_current_limit_table, .n_current_limits = ARRAY_SIZE(max77650_current_limit_table), }, .regA = MAX77650_REG_CNFG_SBB1_A, .regB = MAX77650_REG_CNFG_SBB1_B, }; static struct max77650_regulator_desc max77651_SBB1_desc = { .desc = { .name = "sbb1", .of_match = of_match_ptr("sbb1"), .regulators_node = of_match_ptr("regulators"), .supply_name = "in-sbb1", .id = MAX77650_REGULATOR_ID_SBB1, .ops = &max77651_SBB1_regulator_ops, .linear_range_selectors = max77651_sbb1_volt_range_sel, .linear_ranges = max77651_sbb1_volt_ranges, .n_linear_ranges = ARRAY_SIZE(max77651_sbb1_volt_ranges), .n_voltages = 58, .vsel_step = 1, .vsel_range_mask = MAX77651_REGULATOR_V_SBB1_RANGE_MASK, .vsel_range_reg = MAX77650_REG_CNFG_SBB1_A, .vsel_mask = MAX77651_REGULATOR_V_SBB1_MASK, .vsel_reg = MAX77650_REG_CNFG_SBB1_A, .active_discharge_off = MAX77650_REGULATOR_AD_DISABLED, .active_discharge_on = MAX77650_REGULATOR_AD_ENABLED, .active_discharge_mask = MAX77650_REGULATOR_AD_MASK, .active_discharge_reg = MAX77650_REG_CNFG_SBB1_B, .enable_time = 100, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .csel_reg = MAX77650_REG_CNFG_SBB1_A, .csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK, .curr_table = max77650_current_limit_table, .n_current_limits = ARRAY_SIZE(max77650_current_limit_table), }, .regA = MAX77650_REG_CNFG_SBB1_A, .regB = MAX77650_REG_CNFG_SBB1_B, }; static struct max77650_regulator_desc max77650_SBB2_desc = { .desc = { .name = "sbb2", .of_match = of_match_ptr("sbb2"), .regulators_node = of_match_ptr("regulators"), .supply_name = "in-sbb0", .id = MAX77650_REGULATOR_ID_SBB2, .ops = &max77650_regulator_SBB_ops, .min_uV = 800000, .uV_step = 50000, .n_voltages = 64, .vsel_step = 1, .vsel_mask = MAX77650_REGULATOR_V_SBB_MASK, .vsel_reg = MAX77650_REG_CNFG_SBB2_A, .active_discharge_off = MAX77650_REGULATOR_AD_DISABLED, .active_discharge_on = MAX77650_REGULATOR_AD_ENABLED, .active_discharge_mask = MAX77650_REGULATOR_AD_MASK, .active_discharge_reg = MAX77650_REG_CNFG_SBB2_B, .enable_time = 100, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .csel_reg = MAX77650_REG_CNFG_SBB2_A, .csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK, .curr_table = max77650_current_limit_table, .n_current_limits = ARRAY_SIZE(max77650_current_limit_table), }, .regA = MAX77650_REG_CNFG_SBB2_A, .regB = MAX77650_REG_CNFG_SBB2_B, }; static struct max77650_regulator_desc max77651_SBB2_desc = { .desc = { .name = "sbb2", .of_match = of_match_ptr("sbb2"), .regulators_node = of_match_ptr("regulators"), .supply_name = "in-sbb0", .id = MAX77650_REGULATOR_ID_SBB2, .ops = &max77650_regulator_SBB_ops, .min_uV = 2400000, .uV_step = 50000, .n_voltages = 64, .vsel_step = 1, .vsel_mask = MAX77650_REGULATOR_V_SBB_MASK, .vsel_reg = MAX77650_REG_CNFG_SBB2_A, .active_discharge_off = MAX77650_REGULATOR_AD_DISABLED, .active_discharge_on = MAX77650_REGULATOR_AD_ENABLED, .active_discharge_mask = MAX77650_REGULATOR_AD_MASK, .active_discharge_reg = MAX77650_REG_CNFG_SBB2_B, .enable_time = 100, .type = REGULATOR_VOLTAGE, .owner = THIS_MODULE, .csel_reg = MAX77650_REG_CNFG_SBB2_A, .csel_mask = MAX77650_REGULATOR_CURR_LIM_MASK, .curr_table = max77650_current_limit_table, .n_current_limits = ARRAY_SIZE(max77650_current_limit_table), }, .regA = MAX77650_REG_CNFG_SBB2_A, .regB = MAX77650_REG_CNFG_SBB2_B, }; static int max77650_regulator_probe(struct platform_device *pdev) { struct max77650_regulator_desc **rdescs; struct max77650_regulator_desc *rdesc; struct regulator_config config = { }; struct device *dev, *parent; struct regulator_dev *rdev; struct regmap *map; unsigned int val; int i, rv; dev = &pdev->dev; parent = dev->parent; if (!dev->of_node) dev->of_node = parent->of_node; rdescs = devm_kcalloc(dev, MAX77650_REGULATOR_NUM_REGULATORS, sizeof(*rdescs), GFP_KERNEL); if (!rdescs) return -ENOMEM; map = dev_get_regmap(parent, NULL); if (!map) return -ENODEV; rv = regmap_read(map, MAX77650_REG_CID, &val); if (rv) return rv; rdescs[MAX77650_REGULATOR_ID_LDO] = &max77650_LDO_desc; rdescs[MAX77650_REGULATOR_ID_SBB0] = &max77650_SBB0_desc; switch (MAX77650_CID_BITS(val)) { case MAX77650_CID_77650A: case MAX77650_CID_77650C: rdescs[MAX77650_REGULATOR_ID_SBB1] = &max77650_SBB1_desc; rdescs[MAX77650_REGULATOR_ID_SBB2] = &max77650_SBB2_desc; break; case MAX77650_CID_77651A: case MAX77650_CID_77651B: rdescs[MAX77650_REGULATOR_ID_SBB1] = &max77651_SBB1_desc; rdescs[MAX77650_REGULATOR_ID_SBB2] = &max77651_SBB2_desc; break; default: return -ENODEV; } config.dev = parent; for (i = 0; i < MAX77650_REGULATOR_NUM_REGULATORS; i++) { rdesc = rdescs[i]; config.driver_data = rdesc; rdev = devm_regulator_register(dev, &rdesc->desc, &config); if (IS_ERR(rdev)) return PTR_ERR(rdev); } return 0; } static struct platform_driver max77650_regulator_driver = { .driver = { .name = "max77650-regulator", }, .probe = max77650_regulator_probe, }; module_platform_driver(max77650_regulator_driver); MODULE_DESCRIPTION("MAXIM 77650/77651 regulator driver"); MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:max77650-regulator");
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