diff options
Diffstat (limited to 'drivers/regulator/qcom-rpmh-regulator.c')
| -rw-r--r-- | drivers/regulator/qcom-rpmh-regulator.c | 769 |
1 files changed, 769 insertions, 0 deletions
diff --git a/drivers/regulator/qcom-rpmh-regulator.c b/drivers/regulator/qcom-rpmh-regulator.c new file mode 100644 index 000000000000..9f27daebd8c8 --- /dev/null +++ b/drivers/regulator/qcom-rpmh-regulator.c @@ -0,0 +1,769 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2018, The Linux Foundation. All rights reserved. + +#define pr_fmt(fmt) "%s: " fmt, __func__ + +#include <linux/err.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/slab.h> +#include <linux/string.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/of_regulator.h> + +#include <soc/qcom/cmd-db.h> +#include <soc/qcom/rpmh.h> + +#include <dt-bindings/regulator/qcom,rpmh-regulator.h> + +/** + * 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"); |