| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Robin Gong | 3676 | 92.45% | 1 | 7.14% |
| Axel Lin | 128 | 3.22% | 2 | 14.29% |
| Frieder Schrempf | 65 | 1.63% | 4 | 28.57% |
| Rickard x Andersson | 58 | 1.46% | 2 | 14.29% |
| Per-Daniel Olsson | 38 | 0.96% | 1 | 7.14% |
| Doug Anderson | 5 | 0.13% | 1 | 7.14% |
| Rikard Falkeborn | 3 | 0.08% | 1 | 7.14% |
| Alexander Stein | 2 | 0.05% | 1 | 7.14% |
| Uwe Kleine-König | 1 | 0.03% | 1 | 7.14% |
| Total | 3976 | 14 |
// SPDX-License-Identifier: GPL-2.0 /* * Copyright 2020 NXP. * NXP PCA9450 pmic driver */ #include <linux/err.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #include <linux/regulator/pca9450.h> struct pc9450_dvs_config { unsigned int run_reg; /* dvs0 */ unsigned int run_mask; unsigned int standby_reg; /* dvs1 */ unsigned int standby_mask; }; struct pca9450_regulator_desc { struct regulator_desc desc; const struct pc9450_dvs_config dvs; }; struct pca9450 { struct device *dev; struct regmap *regmap; struct gpio_desc *sd_vsel_gpio; enum pca9450_chip_type type; unsigned int rcnt; int irq; }; static const struct regmap_range pca9450_status_range = { .range_min = PCA9450_REG_INT1, .range_max = PCA9450_REG_PWRON_STAT, }; static const struct regmap_access_table pca9450_volatile_regs = { .yes_ranges = &pca9450_status_range, .n_yes_ranges = 1, }; static const struct regmap_config pca9450_regmap_config = { .reg_bits = 8, .val_bits = 8, .volatile_table = &pca9450_volatile_regs, .max_register = PCA9450_MAX_REGISTER - 1, .cache_type = REGCACHE_RBTREE, }; /* * BUCK1/2/3 * BUCK1RAM[1:0] BUCK1 DVS ramp rate setting * 00: 25mV/1usec * 01: 25mV/2usec * 10: 25mV/4usec * 11: 25mV/8usec */ static const unsigned int pca9450_dvs_buck_ramp_table[] = { 25000, 12500, 6250, 3125 }; static const struct regulator_ops pca9450_dvs_buck_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear_range, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_ramp_delay = regulator_set_ramp_delay_regmap, }; static const struct regulator_ops pca9450_buck_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear_range, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, }; static const struct regulator_ops pca9450_ldo_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear_range, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, }; /* * BUCK1/2/3 * 0.60 to 2.1875V (12.5mV step) */ static const struct linear_range pca9450_dvs_buck_volts[] = { REGULATOR_LINEAR_RANGE(600000, 0x00, 0x7F, 12500), }; /* * BUCK4/5/6 * 0.6V to 3.4V (25mV step) */ static const struct linear_range pca9450_buck_volts[] = { REGULATOR_LINEAR_RANGE(600000, 0x00, 0x70, 25000), REGULATOR_LINEAR_RANGE(3400000, 0x71, 0x7F, 0), }; /* * LDO1 * 1.6 to 3.3V () */ static const struct linear_range pca9450_ldo1_volts[] = { REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(3000000, 0x04, 0x07, 100000), }; /* * LDO2 * 0.8 to 1.15V (50mV step) */ static const struct linear_range pca9450_ldo2_volts[] = { REGULATOR_LINEAR_RANGE(800000, 0x00, 0x07, 50000), }; /* * LDO3/4 * 0.8 to 3.3V (100mV step) */ static const struct linear_range pca9450_ldo34_volts[] = { REGULATOR_LINEAR_RANGE(800000, 0x00, 0x19, 100000), REGULATOR_LINEAR_RANGE(3300000, 0x1A, 0x1F, 0), }; /* * LDO5 * 1.8 to 3.3V (100mV step) */ static const struct linear_range pca9450_ldo5_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; static int buck_set_dvs(const struct regulator_desc *desc, struct device_node *np, struct regmap *regmap, char *prop, unsigned int reg, unsigned int mask) { int ret, i; uint32_t uv; ret = of_property_read_u32(np, prop, &uv); if (ret == -EINVAL) return 0; else if (ret) return ret; for (i = 0; i < desc->n_voltages; i++) { ret = regulator_desc_list_voltage_linear_range(desc, i); if (ret < 0) continue; if (ret == uv) { i <<= ffs(desc->vsel_mask) - 1; ret = regmap_update_bits(regmap, reg, mask, i); break; } } if (ret == 0) { struct pca9450_regulator_desc *regulator = container_of(desc, struct pca9450_regulator_desc, desc); /* Enable DVS control through PMIC_STBY_REQ for this BUCK */ ret = regmap_update_bits(regmap, regulator->desc.enable_reg, BUCK1_DVS_CTRL, BUCK1_DVS_CTRL); } return ret; } static int pca9450_set_dvs_levels(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { struct pca9450_regulator_desc *data = container_of(desc, struct pca9450_regulator_desc, desc); const struct pc9450_dvs_config *dvs = &data->dvs; unsigned int reg, mask; char *prop; int i, ret = 0; for (i = 0; i < PCA9450_DVS_LEVEL_MAX; i++) { switch (i) { case PCA9450_DVS_LEVEL_RUN: prop = "nxp,dvs-run-voltage"; reg = dvs->run_reg; mask = dvs->run_mask; break; case PCA9450_DVS_LEVEL_STANDBY: prop = "nxp,dvs-standby-voltage"; reg = dvs->standby_reg; mask = dvs->standby_mask; break; default: return -EINVAL; } ret = buck_set_dvs(desc, np, cfg->regmap, prop, reg, mask); if (ret) break; } return ret; } static const struct pca9450_regulator_desc pca9450a_regulators[] = { { .desc = { .name = "buck1", .of_match = of_match_ptr("BUCK1"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK1, .ops = &pca9450_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK1_VOLTAGE_NUM, .linear_ranges = pca9450_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), .vsel_reg = PCA9450_REG_BUCK1OUT_DVS0, .vsel_mask = BUCK1OUT_DVS0_MASK, .enable_reg = PCA9450_REG_BUCK1CTRL, .enable_mask = BUCK1_ENMODE_MASK, .ramp_reg = PCA9450_REG_BUCK1CTRL, .ramp_mask = BUCK1_RAMP_MASK, .ramp_delay_table = pca9450_dvs_buck_ramp_table, .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), .owner = THIS_MODULE, .of_parse_cb = pca9450_set_dvs_levels, }, .dvs = { .run_reg = PCA9450_REG_BUCK1OUT_DVS0, .run_mask = BUCK1OUT_DVS0_MASK, .standby_reg = PCA9450_REG_BUCK1OUT_DVS1, .standby_mask = BUCK1OUT_DVS1_MASK, }, }, { .desc = { .name = "buck2", .of_match = of_match_ptr("BUCK2"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK2, .ops = &pca9450_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK2_VOLTAGE_NUM, .linear_ranges = pca9450_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), .vsel_reg = PCA9450_REG_BUCK2OUT_DVS0, .vsel_mask = BUCK2OUT_DVS0_MASK, .enable_reg = PCA9450_REG_BUCK2CTRL, .enable_mask = BUCK2_ENMODE_MASK, .ramp_reg = PCA9450_REG_BUCK2CTRL, .ramp_mask = BUCK2_RAMP_MASK, .ramp_delay_table = pca9450_dvs_buck_ramp_table, .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), .owner = THIS_MODULE, .of_parse_cb = pca9450_set_dvs_levels, }, .dvs = { .run_reg = PCA9450_REG_BUCK2OUT_DVS0, .run_mask = BUCK2OUT_DVS0_MASK, .standby_reg = PCA9450_REG_BUCK2OUT_DVS1, .standby_mask = BUCK2OUT_DVS1_MASK, }, }, { .desc = { .name = "buck3", .of_match = of_match_ptr("BUCK3"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK3, .ops = &pca9450_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK3_VOLTAGE_NUM, .linear_ranges = pca9450_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), .vsel_reg = PCA9450_REG_BUCK3OUT_DVS0, .vsel_mask = BUCK3OUT_DVS0_MASK, .enable_reg = PCA9450_REG_BUCK3CTRL, .enable_mask = BUCK3_ENMODE_MASK, .ramp_reg = PCA9450_REG_BUCK3CTRL, .ramp_mask = BUCK3_RAMP_MASK, .ramp_delay_table = pca9450_dvs_buck_ramp_table, .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), .owner = THIS_MODULE, .of_parse_cb = pca9450_set_dvs_levels, }, .dvs = { .run_reg = PCA9450_REG_BUCK3OUT_DVS0, .run_mask = BUCK3OUT_DVS0_MASK, .standby_reg = PCA9450_REG_BUCK3OUT_DVS1, .standby_mask = BUCK3OUT_DVS1_MASK, }, }, { .desc = { .name = "buck4", .of_match = of_match_ptr("BUCK4"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK4, .ops = &pca9450_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK4_VOLTAGE_NUM, .linear_ranges = pca9450_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), .vsel_reg = PCA9450_REG_BUCK4OUT, .vsel_mask = BUCK4OUT_MASK, .enable_reg = PCA9450_REG_BUCK4CTRL, .enable_mask = BUCK4_ENMODE_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "buck5", .of_match = of_match_ptr("BUCK5"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK5, .ops = &pca9450_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK5_VOLTAGE_NUM, .linear_ranges = pca9450_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), .vsel_reg = PCA9450_REG_BUCK5OUT, .vsel_mask = BUCK5OUT_MASK, .enable_reg = PCA9450_REG_BUCK5CTRL, .enable_mask = BUCK5_ENMODE_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "buck6", .of_match = of_match_ptr("BUCK6"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK6, .ops = &pca9450_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK6_VOLTAGE_NUM, .linear_ranges = pca9450_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), .vsel_reg = PCA9450_REG_BUCK6OUT, .vsel_mask = BUCK6OUT_MASK, .enable_reg = PCA9450_REG_BUCK6CTRL, .enable_mask = BUCK6_ENMODE_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo1", .of_match = of_match_ptr("LDO1"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO1, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO1_VOLTAGE_NUM, .linear_ranges = pca9450_ldo1_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo1_volts), .vsel_reg = PCA9450_REG_LDO1CTRL, .vsel_mask = LDO1OUT_MASK, .enable_reg = PCA9450_REG_LDO1CTRL, .enable_mask = LDO1_EN_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo2", .of_match = of_match_ptr("LDO2"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO2, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO2_VOLTAGE_NUM, .linear_ranges = pca9450_ldo2_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo2_volts), .vsel_reg = PCA9450_REG_LDO2CTRL, .vsel_mask = LDO2OUT_MASK, .enable_reg = PCA9450_REG_LDO2CTRL, .enable_mask = LDO2_EN_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo3", .of_match = of_match_ptr("LDO3"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO3, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO3_VOLTAGE_NUM, .linear_ranges = pca9450_ldo34_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), .vsel_reg = PCA9450_REG_LDO3CTRL, .vsel_mask = LDO3OUT_MASK, .enable_reg = PCA9450_REG_LDO3CTRL, .enable_mask = LDO3_EN_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo4", .of_match = of_match_ptr("LDO4"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO4, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO4_VOLTAGE_NUM, .linear_ranges = pca9450_ldo34_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), .vsel_reg = PCA9450_REG_LDO4CTRL, .vsel_mask = LDO4OUT_MASK, .enable_reg = PCA9450_REG_LDO4CTRL, .enable_mask = LDO4_EN_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo5", .of_match = of_match_ptr("LDO5"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO5, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO5_VOLTAGE_NUM, .linear_ranges = pca9450_ldo5_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo5_volts), .vsel_reg = PCA9450_REG_LDO5CTRL_H, .vsel_mask = LDO5HOUT_MASK, .enable_reg = PCA9450_REG_LDO5CTRL_H, .enable_mask = LDO5H_EN_MASK, .owner = THIS_MODULE, }, }, }; /* * Buck3 removed on PCA9450B and connected with Buck1 internal for dual phase * on PCA9450C as no Buck3. */ static const struct pca9450_regulator_desc pca9450bc_regulators[] = { { .desc = { .name = "buck1", .of_match = of_match_ptr("BUCK1"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK1, .ops = &pca9450_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK1_VOLTAGE_NUM, .linear_ranges = pca9450_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), .vsel_reg = PCA9450_REG_BUCK1OUT_DVS0, .vsel_mask = BUCK1OUT_DVS0_MASK, .enable_reg = PCA9450_REG_BUCK1CTRL, .enable_mask = BUCK1_ENMODE_MASK, .ramp_reg = PCA9450_REG_BUCK1CTRL, .ramp_mask = BUCK1_RAMP_MASK, .ramp_delay_table = pca9450_dvs_buck_ramp_table, .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), .owner = THIS_MODULE, .of_parse_cb = pca9450_set_dvs_levels, }, .dvs = { .run_reg = PCA9450_REG_BUCK1OUT_DVS0, .run_mask = BUCK1OUT_DVS0_MASK, .standby_reg = PCA9450_REG_BUCK1OUT_DVS1, .standby_mask = BUCK1OUT_DVS1_MASK, }, }, { .desc = { .name = "buck2", .of_match = of_match_ptr("BUCK2"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK2, .ops = &pca9450_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK2_VOLTAGE_NUM, .linear_ranges = pca9450_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_dvs_buck_volts), .vsel_reg = PCA9450_REG_BUCK2OUT_DVS0, .vsel_mask = BUCK2OUT_DVS0_MASK, .enable_reg = PCA9450_REG_BUCK2CTRL, .enable_mask = BUCK2_ENMODE_MASK, .ramp_reg = PCA9450_REG_BUCK2CTRL, .ramp_mask = BUCK2_RAMP_MASK, .ramp_delay_table = pca9450_dvs_buck_ramp_table, .n_ramp_values = ARRAY_SIZE(pca9450_dvs_buck_ramp_table), .owner = THIS_MODULE, .of_parse_cb = pca9450_set_dvs_levels, }, .dvs = { .run_reg = PCA9450_REG_BUCK2OUT_DVS0, .run_mask = BUCK2OUT_DVS0_MASK, .standby_reg = PCA9450_REG_BUCK2OUT_DVS1, .standby_mask = BUCK2OUT_DVS1_MASK, }, }, { .desc = { .name = "buck4", .of_match = of_match_ptr("BUCK4"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK4, .ops = &pca9450_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK4_VOLTAGE_NUM, .linear_ranges = pca9450_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), .vsel_reg = PCA9450_REG_BUCK4OUT, .vsel_mask = BUCK4OUT_MASK, .enable_reg = PCA9450_REG_BUCK4CTRL, .enable_mask = BUCK4_ENMODE_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "buck5", .of_match = of_match_ptr("BUCK5"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK5, .ops = &pca9450_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK5_VOLTAGE_NUM, .linear_ranges = pca9450_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), .vsel_reg = PCA9450_REG_BUCK5OUT, .vsel_mask = BUCK5OUT_MASK, .enable_reg = PCA9450_REG_BUCK5CTRL, .enable_mask = BUCK5_ENMODE_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "buck6", .of_match = of_match_ptr("BUCK6"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_BUCK6, .ops = &pca9450_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_BUCK6_VOLTAGE_NUM, .linear_ranges = pca9450_buck_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_buck_volts), .vsel_reg = PCA9450_REG_BUCK6OUT, .vsel_mask = BUCK6OUT_MASK, .enable_reg = PCA9450_REG_BUCK6CTRL, .enable_mask = BUCK6_ENMODE_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo1", .of_match = of_match_ptr("LDO1"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO1, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO1_VOLTAGE_NUM, .linear_ranges = pca9450_ldo1_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo1_volts), .vsel_reg = PCA9450_REG_LDO1CTRL, .vsel_mask = LDO1OUT_MASK, .enable_reg = PCA9450_REG_LDO1CTRL, .enable_mask = LDO1_EN_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo2", .of_match = of_match_ptr("LDO2"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO2, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO2_VOLTAGE_NUM, .linear_ranges = pca9450_ldo2_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo2_volts), .vsel_reg = PCA9450_REG_LDO2CTRL, .vsel_mask = LDO2OUT_MASK, .enable_reg = PCA9450_REG_LDO2CTRL, .enable_mask = LDO2_EN_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo3", .of_match = of_match_ptr("LDO3"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO3, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO3_VOLTAGE_NUM, .linear_ranges = pca9450_ldo34_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), .vsel_reg = PCA9450_REG_LDO3CTRL, .vsel_mask = LDO3OUT_MASK, .enable_reg = PCA9450_REG_LDO3CTRL, .enable_mask = LDO3_EN_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo4", .of_match = of_match_ptr("LDO4"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO4, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO4_VOLTAGE_NUM, .linear_ranges = pca9450_ldo34_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo34_volts), .vsel_reg = PCA9450_REG_LDO4CTRL, .vsel_mask = LDO4OUT_MASK, .enable_reg = PCA9450_REG_LDO4CTRL, .enable_mask = LDO4_EN_MASK, .owner = THIS_MODULE, }, }, { .desc = { .name = "ldo5", .of_match = of_match_ptr("LDO5"), .regulators_node = of_match_ptr("regulators"), .id = PCA9450_LDO5, .ops = &pca9450_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = PCA9450_LDO5_VOLTAGE_NUM, .linear_ranges = pca9450_ldo5_volts, .n_linear_ranges = ARRAY_SIZE(pca9450_ldo5_volts), .vsel_reg = PCA9450_REG_LDO5CTRL_H, .vsel_mask = LDO5HOUT_MASK, .enable_reg = PCA9450_REG_LDO5CTRL_H, .enable_mask = LDO5H_EN_MASK, .owner = THIS_MODULE, }, }, }; static irqreturn_t pca9450_irq_handler(int irq, void *data) { struct pca9450 *pca9450 = data; struct regmap *regmap = pca9450->regmap; unsigned int status; int ret; ret = regmap_read(regmap, PCA9450_REG_INT1, &status); if (ret < 0) { dev_err(pca9450->dev, "Failed to read INT1(%d)\n", ret); return IRQ_NONE; } if (status & IRQ_PWRON) dev_warn(pca9450->dev, "PWRON interrupt.\n"); if (status & IRQ_WDOGB) dev_warn(pca9450->dev, "WDOGB interrupt.\n"); if (status & IRQ_VR_FLT1) dev_warn(pca9450->dev, "VRFLT1 interrupt.\n"); if (status & IRQ_VR_FLT2) dev_warn(pca9450->dev, "VRFLT2 interrupt.\n"); if (status & IRQ_LOWVSYS) dev_warn(pca9450->dev, "LOWVSYS interrupt.\n"); if (status & IRQ_THERM_105) dev_warn(pca9450->dev, "IRQ_THERM_105 interrupt.\n"); if (status & IRQ_THERM_125) dev_warn(pca9450->dev, "IRQ_THERM_125 interrupt.\n"); return IRQ_HANDLED; } static int pca9450_i2c_probe(struct i2c_client *i2c) { enum pca9450_chip_type type = (unsigned int)(uintptr_t) of_device_get_match_data(&i2c->dev); const struct pca9450_regulator_desc *regulator_desc; struct regulator_config config = { }; struct pca9450 *pca9450; unsigned int device_id, i; unsigned int reset_ctrl; int ret; if (!i2c->irq) { dev_err(&i2c->dev, "No IRQ configured?\n"); return -EINVAL; } pca9450 = devm_kzalloc(&i2c->dev, sizeof(struct pca9450), GFP_KERNEL); if (!pca9450) return -ENOMEM; switch (type) { case PCA9450_TYPE_PCA9450A: regulator_desc = pca9450a_regulators; pca9450->rcnt = ARRAY_SIZE(pca9450a_regulators); break; case PCA9450_TYPE_PCA9450BC: regulator_desc = pca9450bc_regulators; pca9450->rcnt = ARRAY_SIZE(pca9450bc_regulators); break; default: dev_err(&i2c->dev, "Unknown device type"); return -EINVAL; } pca9450->irq = i2c->irq; pca9450->type = type; pca9450->dev = &i2c->dev; dev_set_drvdata(&i2c->dev, pca9450); pca9450->regmap = devm_regmap_init_i2c(i2c, &pca9450_regmap_config); if (IS_ERR(pca9450->regmap)) { dev_err(&i2c->dev, "regmap initialization failed\n"); return PTR_ERR(pca9450->regmap); } ret = regmap_read(pca9450->regmap, PCA9450_REG_DEV_ID, &device_id); if (ret) { dev_err(&i2c->dev, "Read device id error\n"); return ret; } /* Check your board and dts for match the right pmic */ if (((device_id >> 4) != 0x1 && type == PCA9450_TYPE_PCA9450A) || ((device_id >> 4) != 0x3 && type == PCA9450_TYPE_PCA9450BC)) { dev_err(&i2c->dev, "Device id(%x) mismatched\n", device_id >> 4); return -EINVAL; } for (i = 0; i < pca9450->rcnt; i++) { const struct regulator_desc *desc; struct regulator_dev *rdev; const struct pca9450_regulator_desc *r; r = ®ulator_desc[i]; desc = &r->desc; config.regmap = pca9450->regmap; config.dev = pca9450->dev; rdev = devm_regulator_register(pca9450->dev, desc, &config); if (IS_ERR(rdev)) { ret = PTR_ERR(rdev); dev_err(pca9450->dev, "Failed to register regulator(%s): %d\n", desc->name, ret); return ret; } } ret = devm_request_threaded_irq(pca9450->dev, pca9450->irq, NULL, pca9450_irq_handler, (IRQF_TRIGGER_FALLING | IRQF_ONESHOT), "pca9450-irq", pca9450); if (ret != 0) { dev_err(pca9450->dev, "Failed to request IRQ: %d\n", pca9450->irq); return ret; } /* Unmask all interrupt except PWRON/WDOG/RSVD */ ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_INT1_MSK, IRQ_VR_FLT1 | IRQ_VR_FLT2 | IRQ_LOWVSYS | IRQ_THERM_105 | IRQ_THERM_125, IRQ_PWRON | IRQ_WDOGB | IRQ_RSVD); if (ret) { dev_err(&i2c->dev, "Unmask irq error\n"); return ret; } /* Clear PRESET_EN bit in BUCK123_DVS to use DVS registers */ ret = regmap_clear_bits(pca9450->regmap, PCA9450_REG_BUCK123_DVS, BUCK123_PRESET_EN); if (ret) { dev_err(&i2c->dev, "Failed to clear PRESET_EN bit: %d\n", ret); return ret; } if (of_property_read_bool(i2c->dev.of_node, "nxp,wdog_b-warm-reset")) reset_ctrl = WDOG_B_CFG_WARM; else reset_ctrl = WDOG_B_CFG_COLD_LDO12; /* Set reset behavior on assertion of WDOG_B signal */ ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_RESET_CTRL, WDOG_B_CFG_MASK, reset_ctrl); if (ret) { dev_err(&i2c->dev, "Failed to set WDOG_B reset behavior\n"); return ret; } if (of_property_read_bool(i2c->dev.of_node, "nxp,i2c-lt-enable")) { /* Enable I2C Level Translator */ ret = regmap_update_bits(pca9450->regmap, PCA9450_REG_CONFIG2, I2C_LT_MASK, I2C_LT_ON_STANDBY_RUN); if (ret) { dev_err(&i2c->dev, "Failed to enable I2C level translator\n"); return ret; } } /* * The driver uses the LDO5CTRL_H register to control the LDO5 regulator. * This is only valid if the SD_VSEL input of the PMIC is high. Let's * check if the pin is available as GPIO and set it to high. */ pca9450->sd_vsel_gpio = gpiod_get_optional(pca9450->dev, "sd-vsel", GPIOD_OUT_HIGH); if (IS_ERR(pca9450->sd_vsel_gpio)) { dev_err(&i2c->dev, "Failed to get SD_VSEL GPIO\n"); return PTR_ERR(pca9450->sd_vsel_gpio); } dev_info(&i2c->dev, "%s probed.\n", type == PCA9450_TYPE_PCA9450A ? "pca9450a" : "pca9450bc"); return 0; } static const struct of_device_id pca9450_of_match[] = { { .compatible = "nxp,pca9450a", .data = (void *)PCA9450_TYPE_PCA9450A, }, { .compatible = "nxp,pca9450b", .data = (void *)PCA9450_TYPE_PCA9450BC, }, { .compatible = "nxp,pca9450c", .data = (void *)PCA9450_TYPE_PCA9450BC, }, { } }; MODULE_DEVICE_TABLE(of, pca9450_of_match); static struct i2c_driver pca9450_i2c_driver = { .driver = { .name = "nxp-pca9450", .probe_type = PROBE_PREFER_ASYNCHRONOUS, .of_match_table = pca9450_of_match, }, .probe = pca9450_i2c_probe, }; module_i2c_driver(pca9450_i2c_driver); MODULE_AUTHOR("Robin Gong <yibin.gong@nxp.com>"); MODULE_DESCRIPTION("NXP PCA9450 Power Management IC driver"); MODULE_LICENSE("GPL");
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