// 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 (of_node_name_eq(node, rpmh_data->name))
break;
if (!rpmh_data->name) {
dev_err(dev, "Unknown regulator %pOFn\n", node);
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, "%pOFn: could not find RPMh address for resource %s\n",
node, 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, "%pOFn: devm_regulator_register() failed, ret=%d\n",
node, ret);
return ret;
}
dev_dbg(dev, "%pOFn regulator registered for RPMh resource %s @ 0x%05X\n",
node, 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;
break;
}
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;
break;
}
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;
break;
}
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");
