// SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2018, The Linux Foundation. All rights reserved. #define pr_fmt(fmt) "%s: " fmt, __func__ #include #include #include #include #include #include #include #include #include #include #include #include #include #include /** * enum rpmh_regulator_type - supported RPMh accelerator types * %VRM: RPMh VRM accelerator which supports voting on enable, voltage, * and mode of LDO, SMPS, and BOB type PMIC regulators. * %XOB: RPMh XOB accelerator which supports voting on the enable state * of PMIC regulators. */ enum rpmh_regulator_type { VRM, XOB, }; #define RPMH_REGULATOR_REG_VRM_VOLTAGE 0x0 #define RPMH_REGULATOR_REG_ENABLE 0x4 #define RPMH_REGULATOR_REG_VRM_MODE 0x8 #define PMIC4_LDO_MODE_RETENTION 4 #define PMIC4_LDO_MODE_LPM 5 #define PMIC4_LDO_MODE_HPM 7 #define PMIC4_SMPS_MODE_RETENTION 4 #define PMIC4_SMPS_MODE_PFM 5 #define PMIC4_SMPS_MODE_AUTO 6 #define PMIC4_SMPS_MODE_PWM 7 #define PMIC4_BOB_MODE_PASS 0 #define PMIC4_BOB_MODE_PFM 1 #define PMIC4_BOB_MODE_AUTO 2 #define PMIC4_BOB_MODE_PWM 3 /** * struct rpmh_vreg_hw_data - RPMh regulator hardware configurations * @regulator_type: RPMh accelerator type used to manage this * regulator * @ops: Pointer to regulator ops callback structure * @voltage_range: The single range of voltages supported by this * PMIC regulator type * @n_voltages: The number of unique voltage set points defined * by voltage_range * @hpm_min_load_uA: Minimum load current in microamps that requires * high power mode (HPM) operation. This is used * for LDO hardware type regulators only. * @pmic_mode_map: Array indexed by regulator framework mode * containing PMIC hardware modes. Must be large * enough to index all framework modes supported * by this regulator hardware type. * @of_map_mode: Maps an RPMH_REGULATOR_MODE_* mode value defined * in device tree to a regulator framework mode */ struct rpmh_vreg_hw_data { enum rpmh_regulator_type regulator_type; const struct regulator_ops *ops; const struct regulator_linear_range voltage_range; int n_voltages; int hpm_min_load_uA; const int *pmic_mode_map; unsigned int (*of_map_mode)(unsigned int mode); }; /** * struct rpmh_vreg - individual RPMh regulator data structure encapsulating a * single regulator device * @dev: Device pointer for the top-level PMIC RPMh * regulator parent device. This is used as a * handle in RPMh write requests. * @addr: Base address of the regulator resource within * an RPMh accelerator * @rdesc: Regulator descriptor * @hw_data: PMIC regulator configuration data for this RPMh * regulator * @always_wait_for_ack: Boolean flag indicating if a request must always * wait for an ACK from RPMh before continuing even * if it corresponds to a strictly lower power * state (e.g. enabled --> disabled). * @enabled: Flag indicating if the regulator is enabled or * not * @bypassed: Boolean indicating if the regulator is in * bypass (pass-through) mode or not. This is * only used by BOB rpmh-regulator resources. * @voltage_selector: Selector used for get_voltage_sel() and * set_voltage_sel() callbacks * @mode: RPMh VRM regulator current framework mode */ struct rpmh_vreg { struct device *dev; u32 addr; struct regulator_desc rdesc; const struct rpmh_vreg_hw_data *hw_data; bool always_wait_for_ack; int enabled; bool bypassed; int voltage_selector; unsigned int mode; }; /** * struct rpmh_vreg_init_data - initialization data for an RPMh regulator * @name: Name for the regulator which also corresponds * to the device tree subnode name of the regulator * @resource_name: RPMh regulator resource name format string. * This must include exactly one field: '%s' which * is filled at run-time with the PMIC ID provided * by device tree property qcom,pmic-id. Example: * "ldo%s1" for RPMh resource "ldoa1". * @supply_name: Parent supply regulator name * @hw_data: Configuration data for this PMIC regulator type */ struct rpmh_vreg_init_data { const char *name; const char *resource_name; const char *supply_name; const struct rpmh_vreg_hw_data *hw_data; }; /** * rpmh_regulator_send_request() - send the request to RPMh * @vreg: Pointer to the RPMh regulator * @cmd: Pointer to the RPMh command to send * @wait_for_ack: Boolean indicating if execution must wait until the * request has been acknowledged as complete * * Return: 0 on success, errno on failure */ static int rpmh_regulator_send_request(struct rpmh_vreg *vreg, struct tcs_cmd *cmd, bool wait_for_ack) { int ret; if (wait_for_ack || vreg->always_wait_for_ack) ret = rpmh_write(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd, 1); else ret = rpmh_write_async(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd, 1); return ret; } static int _rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev, unsigned int selector, bool wait_for_ack) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); struct tcs_cmd cmd = { .addr = vreg->addr + RPMH_REGULATOR_REG_VRM_VOLTAGE, }; int ret; /* VRM voltage control register is set with voltage in millivolts. */ cmd.data = DIV_ROUND_UP(regulator_list_voltage_linear_range(rdev, selector), 1000); ret = rpmh_regulator_send_request(vreg, &cmd, wait_for_ack); if (!ret) vreg->voltage_selector = selector; return ret; } static int rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev, unsigned int selector) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); if (vreg->enabled == -EINVAL) { /* * Cache the voltage and send it later when the regulator is * enabled or disabled. */ vreg->voltage_selector = selector; return 0; } return _rpmh_regulator_vrm_set_voltage_sel(rdev, selector, selector > vreg->voltage_selector); } static int rpmh_regulator_vrm_get_voltage_sel(struct regulator_dev *rdev) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); return vreg->voltage_selector; } static int rpmh_regulator_is_enabled(struct regulator_dev *rdev) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); return vreg->enabled; } static int rpmh_regulator_set_enable_state(struct regulator_dev *rdev, bool enable) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); struct tcs_cmd cmd = { .addr = vreg->addr + RPMH_REGULATOR_REG_ENABLE, .data = enable, }; int ret; if (vreg->enabled == -EINVAL && vreg->voltage_selector != -ENOTRECOVERABLE) { ret = _rpmh_regulator_vrm_set_voltage_sel(rdev, vreg->voltage_selector, true); if (ret < 0) return ret; } ret = rpmh_regulator_send_request(vreg, &cmd, enable); if (!ret) vreg->enabled = enable; return ret; } static int rpmh_regulator_enable(struct regulator_dev *rdev) { return rpmh_regulator_set_enable_state(rdev, true); } static int rpmh_regulator_disable(struct regulator_dev *rdev) { return rpmh_regulator_set_enable_state(rdev, false); } static int rpmh_regulator_vrm_set_mode_bypass(struct rpmh_vreg *vreg, unsigned int mode, bool bypassed) { struct tcs_cmd cmd = { .addr = vreg->addr + RPMH_REGULATOR_REG_VRM_MODE, }; int pmic_mode; if (mode > REGULATOR_MODE_STANDBY) return -EINVAL; pmic_mode = vreg->hw_data->pmic_mode_map[mode]; if (pmic_mode < 0) return pmic_mode; if (bypassed) cmd.data = PMIC4_BOB_MODE_PASS; else cmd.data = pmic_mode; return rpmh_regulator_send_request(vreg, &cmd, true); } static int rpmh_regulator_vrm_set_mode(struct regulator_dev *rdev, unsigned int mode) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); int ret; if (mode == vreg->mode) return 0; ret = rpmh_regulator_vrm_set_mode_bypass(vreg, mode, vreg->bypassed); if (!ret) vreg->mode = mode; return ret; } static unsigned int rpmh_regulator_vrm_get_mode(struct regulator_dev *rdev) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); return vreg->mode; } /** * rpmh_regulator_vrm_set_load() - set the regulator mode based upon the load * current requested * @rdev: Regulator device pointer for the rpmh-regulator * @load_uA: Aggregated load current in microamps * * This function is used in the regulator_ops for VRM type RPMh regulator * devices. * * Return: 0 on success, errno on failure */ static int rpmh_regulator_vrm_set_load(struct regulator_dev *rdev, int load_uA) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); unsigned int mode; if (load_uA >= vreg->hw_data->hpm_min_load_uA) mode = REGULATOR_MODE_NORMAL; else mode = REGULATOR_MODE_IDLE; return rpmh_regulator_vrm_set_mode(rdev, mode); } static int rpmh_regulator_vrm_set_bypass(struct regulator_dev *rdev, bool enable) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); int ret; if (vreg->bypassed == enable) return 0; ret = rpmh_regulator_vrm_set_mode_bypass(vreg, vreg->mode, enable); if (!ret) vreg->bypassed = enable; return ret; } static int rpmh_regulator_vrm_get_bypass(struct regulator_dev *rdev, bool *enable) { struct rpmh_vreg *vreg = rdev_get_drvdata(rdev); *enable = vreg->bypassed; return 0; } static const struct regulator_ops rpmh_regulator_vrm_ops = { .enable = rpmh_regulator_enable, .disable = rpmh_regulator_disable, .is_enabled = rpmh_regulator_is_enabled, .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel, .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel, .list_voltage = regulator_list_voltage_linear_range, .set_mode = rpmh_regulator_vrm_set_mode, .get_mode = rpmh_regulator_vrm_get_mode, }; static const struct regulator_ops rpmh_regulator_vrm_drms_ops = { .enable = rpmh_regulator_enable, .disable = rpmh_regulator_disable, .is_enabled = rpmh_regulator_is_enabled, .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel, .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel, .list_voltage = regulator_list_voltage_linear_range, .set_mode = rpmh_regulator_vrm_set_mode, .get_mode = rpmh_regulator_vrm_get_mode, .set_load = rpmh_regulator_vrm_set_load, }; static const struct regulator_ops rpmh_regulator_vrm_bypass_ops = { .enable = rpmh_regulator_enable, .disable = rpmh_regulator_disable, .is_enabled = rpmh_regulator_is_enabled, .set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel, .get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel, .list_voltage = regulator_list_voltage_linear_range, .set_mode = rpmh_regulator_vrm_set_mode, .get_mode = rpmh_regulator_vrm_get_mode, .set_bypass = rpmh_regulator_vrm_set_bypass, .get_bypass = rpmh_regulator_vrm_get_bypass, }; static const struct regulator_ops rpmh_regulator_xob_ops = { .enable = rpmh_regulator_enable, .disable = rpmh_regulator_disable, .is_enabled = rpmh_regulator_is_enabled, }; /** * rpmh_regulator_init_vreg() - initialize all attributes of an rpmh-regulator * vreg: Pointer to the individual rpmh-regulator resource * dev: Pointer to the top level rpmh-regulator PMIC device * node: Pointer to the individual rpmh-regulator resource * device node * pmic_id: String used to identify the top level rpmh-regulator * PMIC device on the board * pmic_rpmh_data: Pointer to a null-terminated array of rpmh-regulator * resources defined for the top level PMIC device * * Return: 0 on success, errno on failure */ static int rpmh_regulator_init_vreg(struct rpmh_vreg *vreg, struct device *dev, struct device_node *node, const char *pmic_id, const struct rpmh_vreg_init_data *pmic_rpmh_data) { struct regulator_config reg_config = {}; char rpmh_resource_name[20] = ""; const struct rpmh_vreg_init_data *rpmh_data; struct regulator_init_data *init_data; struct regulator_dev *rdev; int ret; vreg->dev = dev; for (rpmh_data = pmic_rpmh_data; rpmh_data->name; rpmh_data++) if (!strcmp(rpmh_data->name, node->name)) break; if (!rpmh_data->name) { dev_err(dev, "Unknown regulator %s\n", node->name); return -EINVAL; } scnprintf(rpmh_resource_name, sizeof(rpmh_resource_name), rpmh_data->resource_name, pmic_id); vreg->addr = cmd_db_read_addr(rpmh_resource_name); if (!vreg->addr) { dev_err(dev, "%s: could not find RPMh address for resource %s\n", node->name, rpmh_resource_name); return -ENODEV; } vreg->rdesc.name = rpmh_data->name; vreg->rdesc.supply_name = rpmh_data->supply_name; vreg->hw_data = rpmh_data->hw_data; vreg->enabled = -EINVAL; vreg->voltage_selector = -ENOTRECOVERABLE; vreg->mode = REGULATOR_MODE_INVALID; if (rpmh_data->hw_data->n_voltages) { vreg->rdesc.linear_ranges = &rpmh_data->hw_data->voltage_range; vreg->rdesc.n_linear_ranges = 1; vreg->rdesc.n_voltages = rpmh_data->hw_data->n_voltages; } vreg->always_wait_for_ack = of_property_read_bool(node, "qcom,always-wait-for-ack"); vreg->rdesc.owner = THIS_MODULE; vreg->rdesc.type = REGULATOR_VOLTAGE; vreg->rdesc.ops = vreg->hw_data->ops; vreg->rdesc.of_map_mode = vreg->hw_data->of_map_mode; init_data = of_get_regulator_init_data(dev, node, &vreg->rdesc); if (!init_data) return -ENOMEM; if (rpmh_data->hw_data->regulator_type == XOB && init_data->constraints.min_uV && init_data->constraints.min_uV == init_data->constraints.max_uV) { vreg->rdesc.fixed_uV = init_data->constraints.min_uV; vreg->rdesc.n_voltages = 1; } reg_config.dev = dev; reg_config.init_data = init_data; reg_config.of_node = node; reg_config.driver_data = vreg; rdev = devm_regulator_register(dev, &vreg->rdesc, ®_config); if (IS_ERR(rdev)) { ret = PTR_ERR(rdev); dev_err(dev, "%s: devm_regulator_register() failed, ret=%d\n", node->name, ret); return ret; } dev_dbg(dev, "%s regulator registered for RPMh resource %s @ 0x%05X\n", node->name, rpmh_resource_name, vreg->addr); return 0; } static const int pmic_mode_map_pmic4_ldo[REGULATOR_MODE_STANDBY + 1] = { [REGULATOR_MODE_INVALID] = -EINVAL, [REGULATOR_MODE_STANDBY] = PMIC4_LDO_MODE_RETENTION, [REGULATOR_MODE_IDLE] = PMIC4_LDO_MODE_LPM, [REGULATOR_MODE_NORMAL] = PMIC4_LDO_MODE_HPM, [REGULATOR_MODE_FAST] = -EINVAL, }; static unsigned int rpmh_regulator_pmic4_ldo_of_map_mode(unsigned int rpmh_mode) { unsigned int mode; switch (rpmh_mode) { case RPMH_REGULATOR_MODE_HPM: mode = REGULATOR_MODE_NORMAL; break; case RPMH_REGULATOR_MODE_LPM: mode = REGULATOR_MODE_IDLE; break; case RPMH_REGULATOR_MODE_RET: mode = REGULATOR_MODE_STANDBY; break; default: mode = REGULATOR_MODE_INVALID; } return mode; } static const int pmic_mode_map_pmic4_smps[REGULATOR_MODE_STANDBY + 1] = { [REGULATOR_MODE_INVALID] = -EINVAL, [REGULATOR_MODE_STANDBY] = PMIC4_SMPS_MODE_RETENTION, [REGULATOR_MODE_IDLE] = PMIC4_SMPS_MODE_PFM, [REGULATOR_MODE_NORMAL] = PMIC4_SMPS_MODE_AUTO, [REGULATOR_MODE_FAST] = PMIC4_SMPS_MODE_PWM, }; static unsigned int rpmh_regulator_pmic4_smps_of_map_mode(unsigned int rpmh_mode) { unsigned int mode; switch (rpmh_mode) { case RPMH_REGULATOR_MODE_HPM: mode = REGULATOR_MODE_FAST; break; case RPMH_REGULATOR_MODE_AUTO: mode = REGULATOR_MODE_NORMAL; break; case RPMH_REGULATOR_MODE_LPM: mode = REGULATOR_MODE_IDLE; break; case RPMH_REGULATOR_MODE_RET: mode = REGULATOR_MODE_STANDBY; break; default: mode = REGULATOR_MODE_INVALID; } return mode; } static const int pmic_mode_map_pmic4_bob[REGULATOR_MODE_STANDBY + 1] = { [REGULATOR_MODE_INVALID] = -EINVAL, [REGULATOR_MODE_STANDBY] = -EINVAL, [REGULATOR_MODE_IDLE] = PMIC4_BOB_MODE_PFM, [REGULATOR_MODE_NORMAL] = PMIC4_BOB_MODE_AUTO, [REGULATOR_MODE_FAST] = PMIC4_BOB_MODE_PWM, }; static unsigned int rpmh_regulator_pmic4_bob_of_map_mode(unsigned int rpmh_mode) { unsigned int mode; switch (rpmh_mode) { case RPMH_REGULATOR_MODE_HPM: mode = REGULATOR_MODE_FAST; break; case RPMH_REGULATOR_MODE_AUTO: mode = REGULATOR_MODE_NORMAL; break; case RPMH_REGULATOR_MODE_LPM: mode = REGULATOR_MODE_IDLE; break; default: mode = REGULATOR_MODE_INVALID; } return mode; } static const struct rpmh_vreg_hw_data pmic4_pldo = { .regulator_type = VRM, .ops = &rpmh_regulator_vrm_drms_ops, .voltage_range = REGULATOR_LINEAR_RANGE(1664000, 0, 255, 8000), .n_voltages = 256, .hpm_min_load_uA = 10000, .pmic_mode_map = pmic_mode_map_pmic4_ldo, .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, }; static const struct rpmh_vreg_hw_data pmic4_pldo_lv = { .regulator_type = VRM, .ops = &rpmh_regulator_vrm_drms_ops, .voltage_range = REGULATOR_LINEAR_RANGE(1256000, 0, 127, 8000), .n_voltages = 128, .hpm_min_load_uA = 10000, .pmic_mode_map = pmic_mode_map_pmic4_ldo, .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, }; static const struct rpmh_vreg_hw_data pmic4_nldo = { .regulator_type = VRM, .ops = &rpmh_regulator_vrm_drms_ops, .voltage_range = REGULATOR_LINEAR_RANGE(312000, 0, 127, 8000), .n_voltages = 128, .hpm_min_load_uA = 30000, .pmic_mode_map = pmic_mode_map_pmic4_ldo, .of_map_mode = rpmh_regulator_pmic4_ldo_of_map_mode, }; static const struct rpmh_vreg_hw_data pmic4_hfsmps3 = { .regulator_type = VRM, .ops = &rpmh_regulator_vrm_ops, .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 215, 8000), .n_voltages = 216, .pmic_mode_map = pmic_mode_map_pmic4_smps, .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode, }; static const struct rpmh_vreg_hw_data pmic4_ftsmps426 = { .regulator_type = VRM, .ops = &rpmh_regulator_vrm_ops, .voltage_range = REGULATOR_LINEAR_RANGE(320000, 0, 258, 4000), .n_voltages = 259, .pmic_mode_map = pmic_mode_map_pmic4_smps, .of_map_mode = rpmh_regulator_pmic4_smps_of_map_mode, }; static const struct rpmh_vreg_hw_data pmic4_bob = { .regulator_type = VRM, .ops = &rpmh_regulator_vrm_bypass_ops, .voltage_range = REGULATOR_LINEAR_RANGE(1824000, 0, 83, 32000), .n_voltages = 84, .pmic_mode_map = pmic_mode_map_pmic4_bob, .of_map_mode = rpmh_regulator_pmic4_bob_of_map_mode, }; static const struct rpmh_vreg_hw_data pmic4_lvs = { .regulator_type = XOB, .ops = &rpmh_regulator_xob_ops, /* LVS hardware does not support voltage or mode configuration. */ }; #define RPMH_VREG(_name, _resource_name, _hw_data, _supply_name) \ { \ .name = _name, \ .resource_name = _resource_name, \ .hw_data = _hw_data, \ .supply_name = _supply_name, \ } static const struct rpmh_vreg_init_data pm8998_vreg_data[] = { RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"), RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"), RPMH_VREG("smps3", "smp%s3", &pmic4_hfsmps3, "vdd-s3"), RPMH_VREG("smps4", "smp%s4", &pmic4_hfsmps3, "vdd-s4"), RPMH_VREG("smps5", "smp%s5", &pmic4_hfsmps3, "vdd-s5"), RPMH_VREG("smps6", "smp%s6", &pmic4_ftsmps426, "vdd-s6"), RPMH_VREG("smps7", "smp%s7", &pmic4_ftsmps426, "vdd-s7"), RPMH_VREG("smps8", "smp%s8", &pmic4_ftsmps426, "vdd-s8"), RPMH_VREG("smps9", "smp%s9", &pmic4_ftsmps426, "vdd-s9"), RPMH_VREG("smps10", "smp%s10", &pmic4_ftsmps426, "vdd-s10"), RPMH_VREG("smps11", "smp%s11", &pmic4_ftsmps426, "vdd-s11"), RPMH_VREG("smps12", "smp%s12", &pmic4_ftsmps426, "vdd-s12"), RPMH_VREG("smps13", "smp%s13", &pmic4_ftsmps426, "vdd-s13"), RPMH_VREG("ldo1", "ldo%s1", &pmic4_nldo, "vdd-l1-l27"), RPMH_VREG("ldo2", "ldo%s2", &pmic4_nldo, "vdd-l2-l8-l17"), RPMH_VREG("ldo3", "ldo%s3", &pmic4_nldo, "vdd-l3-l11"), RPMH_VREG("ldo4", "ldo%s4", &pmic4_nldo, "vdd-l4-l5"), RPMH_VREG("ldo5", "ldo%s5", &pmic4_nldo, "vdd-l4-l5"), RPMH_VREG("ldo6", "ldo%s6", &pmic4_pldo, "vdd-l6"), RPMH_VREG("ldo7", "ldo%s7", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"), RPMH_VREG("ldo8", "ldo%s8", &pmic4_nldo, "vdd-l2-l8-l17"), RPMH_VREG("ldo9", "ldo%s9", &pmic4_pldo, "vdd-l9"), RPMH_VREG("ldo10", "ldo%s10", &pmic4_pldo, "vdd-l10-l23-l25"), RPMH_VREG("ldo11", "ldo%s11", &pmic4_nldo, "vdd-l3-l11"), RPMH_VREG("ldo12", "ldo%s12", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"), RPMH_VREG("ldo13", "ldo%s13", &pmic4_pldo, "vdd-l13-l19-l21"), RPMH_VREG("ldo14", "ldo%s14", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"), RPMH_VREG("ldo15", "ldo%s15", &pmic4_pldo_lv, "vdd-l7-l12-l14-l15"), RPMH_VREG("ldo16", "ldo%s16", &pmic4_pldo, "vdd-l16-l28"), RPMH_VREG("ldo17", "ldo%s17", &pmic4_nldo, "vdd-l2-l8-l17"), RPMH_VREG("ldo18", "ldo%s18", &pmic4_pldo, "vdd-l18-l22"), RPMH_VREG("ldo19", "ldo%s19", &pmic4_pldo, "vdd-l13-l19-l21"), RPMH_VREG("ldo20", "ldo%s20", &pmic4_pldo, "vdd-l20-l24"), RPMH_VREG("ldo21", "ldo%s21", &pmic4_pldo, "vdd-l13-l19-l21"), RPMH_VREG("ldo22", "ldo%s22", &pmic4_pldo, "vdd-l18-l22"), RPMH_VREG("ldo23", "ldo%s23", &pmic4_pldo, "vdd-l10-l23-l25"), RPMH_VREG("ldo24", "ldo%s24", &pmic4_pldo, "vdd-l20-l24"), RPMH_VREG("ldo25", "ldo%s25", &pmic4_pldo, "vdd-l10-l23-l25"), RPMH_VREG("ldo26", "ldo%s26", &pmic4_nldo, "vdd-l26"), RPMH_VREG("ldo27", "ldo%s27", &pmic4_nldo, "vdd-l1-l27"), RPMH_VREG("ldo28", "ldo%s28", &pmic4_pldo, "vdd-l16-l28"), RPMH_VREG("lvs1", "vs%s1", &pmic4_lvs, "vin-lvs-1-2"), RPMH_VREG("lvs2", "vs%s2", &pmic4_lvs, "vin-lvs-1-2"), {}, }; static const struct rpmh_vreg_init_data pmi8998_vreg_data[] = { RPMH_VREG("bob", "bob%s1", &pmic4_bob, "vdd-bob"), {}, }; static const struct rpmh_vreg_init_data pm8005_vreg_data[] = { RPMH_VREG("smps1", "smp%s1", &pmic4_ftsmps426, "vdd-s1"), RPMH_VREG("smps2", "smp%s2", &pmic4_ftsmps426, "vdd-s2"), RPMH_VREG("smps3", "smp%s3", &pmic4_ftsmps426, "vdd-s3"), RPMH_VREG("smps4", "smp%s4", &pmic4_ftsmps426, "vdd-s4"), {}, }; static int rpmh_regulator_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; const struct rpmh_vreg_init_data *vreg_data; struct device_node *node; struct rpmh_vreg *vreg; const char *pmic_id; int ret; vreg_data = of_device_get_match_data(dev); if (!vreg_data) return -ENODEV; ret = of_property_read_string(dev->of_node, "qcom,pmic-id", &pmic_id); if (ret < 0) { dev_err(dev, "qcom,pmic-id missing in DT node\n"); return ret; } for_each_available_child_of_node(dev->of_node, node) { vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL); if (!vreg) { of_node_put(node); return -ENOMEM; } ret = rpmh_regulator_init_vreg(vreg, dev, node, pmic_id, vreg_data); if (ret < 0) { of_node_put(node); return ret; } } return 0; } static const struct of_device_id rpmh_regulator_match_table[] = { { .compatible = "qcom,pm8998-rpmh-regulators", .data = pm8998_vreg_data, }, { .compatible = "qcom,pmi8998-rpmh-regulators", .data = pmi8998_vreg_data, }, { .compatible = "qcom,pm8005-rpmh-regulators", .data = pm8005_vreg_data, }, {} }; MODULE_DEVICE_TABLE(of, rpmh_regulator_match_table); static struct platform_driver rpmh_regulator_driver = { .driver = { .name = "qcom-rpmh-regulator", .of_match_table = of_match_ptr(rpmh_regulator_match_table), }, .probe = rpmh_regulator_probe, }; module_platform_driver(rpmh_regulator_driver); MODULE_DESCRIPTION("Qualcomm RPMh regulator driver"); MODULE_LICENSE("GPL v2");