770 lines
23 KiB
C
770 lines
23 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2018, The Linux Foundation. All rights reserved.
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#define pr_fmt(fmt) "%s: " fmt, __func__
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#include <linux/err.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/string.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/of_regulator.h>
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#include <soc/qcom/cmd-db.h>
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#include <soc/qcom/rpmh.h>
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#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
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/**
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* enum rpmh_regulator_type - supported RPMh accelerator types
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* %VRM: RPMh VRM accelerator which supports voting on enable, voltage,
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* and mode of LDO, SMPS, and BOB type PMIC regulators.
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* %XOB: RPMh XOB accelerator which supports voting on the enable state
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* of PMIC regulators.
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*/
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enum rpmh_regulator_type {
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VRM,
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XOB,
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};
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#define RPMH_REGULATOR_REG_VRM_VOLTAGE 0x0
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#define RPMH_REGULATOR_REG_ENABLE 0x4
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#define RPMH_REGULATOR_REG_VRM_MODE 0x8
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#define PMIC4_LDO_MODE_RETENTION 4
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#define PMIC4_LDO_MODE_LPM 5
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#define PMIC4_LDO_MODE_HPM 7
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#define PMIC4_SMPS_MODE_RETENTION 4
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#define PMIC4_SMPS_MODE_PFM 5
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#define PMIC4_SMPS_MODE_AUTO 6
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#define PMIC4_SMPS_MODE_PWM 7
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#define PMIC4_BOB_MODE_PASS 0
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#define PMIC4_BOB_MODE_PFM 1
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#define PMIC4_BOB_MODE_AUTO 2
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#define PMIC4_BOB_MODE_PWM 3
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/**
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* struct rpmh_vreg_hw_data - RPMh regulator hardware configurations
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* @regulator_type: RPMh accelerator type used to manage this
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* regulator
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* @ops: Pointer to regulator ops callback structure
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* @voltage_range: The single range of voltages supported by this
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* PMIC regulator type
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* @n_voltages: The number of unique voltage set points defined
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* by voltage_range
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* @hpm_min_load_uA: Minimum load current in microamps that requires
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* high power mode (HPM) operation. This is used
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* for LDO hardware type regulators only.
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* @pmic_mode_map: Array indexed by regulator framework mode
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* containing PMIC hardware modes. Must be large
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* enough to index all framework modes supported
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* by this regulator hardware type.
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* @of_map_mode: Maps an RPMH_REGULATOR_MODE_* mode value defined
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* in device tree to a regulator framework mode
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*/
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struct rpmh_vreg_hw_data {
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enum rpmh_regulator_type regulator_type;
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const struct regulator_ops *ops;
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const struct regulator_linear_range voltage_range;
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int n_voltages;
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int hpm_min_load_uA;
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const int *pmic_mode_map;
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unsigned int (*of_map_mode)(unsigned int mode);
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};
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/**
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* struct rpmh_vreg - individual RPMh regulator data structure encapsulating a
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* single regulator device
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* @dev: Device pointer for the top-level PMIC RPMh
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* regulator parent device. This is used as a
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* handle in RPMh write requests.
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* @addr: Base address of the regulator resource within
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* an RPMh accelerator
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* @rdesc: Regulator descriptor
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* @hw_data: PMIC regulator configuration data for this RPMh
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* regulator
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* @always_wait_for_ack: Boolean flag indicating if a request must always
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* wait for an ACK from RPMh before continuing even
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* if it corresponds to a strictly lower power
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* state (e.g. enabled --> disabled).
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* @enabled: Flag indicating if the regulator is enabled or
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* not
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* @bypassed: Boolean indicating if the regulator is in
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* bypass (pass-through) mode or not. This is
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* only used by BOB rpmh-regulator resources.
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* @voltage_selector: Selector used for get_voltage_sel() and
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* set_voltage_sel() callbacks
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* @mode: RPMh VRM regulator current framework mode
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*/
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struct rpmh_vreg {
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struct device *dev;
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u32 addr;
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struct regulator_desc rdesc;
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const struct rpmh_vreg_hw_data *hw_data;
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bool always_wait_for_ack;
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int enabled;
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bool bypassed;
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int voltage_selector;
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unsigned int mode;
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};
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/**
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* struct rpmh_vreg_init_data - initialization data for an RPMh regulator
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* @name: Name for the regulator which also corresponds
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* to the device tree subnode name of the regulator
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* @resource_name: RPMh regulator resource name format string.
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* This must include exactly one field: '%s' which
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* is filled at run-time with the PMIC ID provided
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* by device tree property qcom,pmic-id. Example:
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* "ldo%s1" for RPMh resource "ldoa1".
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* @supply_name: Parent supply regulator name
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* @hw_data: Configuration data for this PMIC regulator type
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*/
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struct rpmh_vreg_init_data {
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const char *name;
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const char *resource_name;
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const char *supply_name;
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const struct rpmh_vreg_hw_data *hw_data;
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};
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/**
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* rpmh_regulator_send_request() - send the request to RPMh
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* @vreg: Pointer to the RPMh regulator
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* @cmd: Pointer to the RPMh command to send
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* @wait_for_ack: Boolean indicating if execution must wait until the
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* request has been acknowledged as complete
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*
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* Return: 0 on success, errno on failure
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*/
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static int rpmh_regulator_send_request(struct rpmh_vreg *vreg,
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struct tcs_cmd *cmd, bool wait_for_ack)
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{
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int ret;
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if (wait_for_ack || vreg->always_wait_for_ack)
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ret = rpmh_write(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd, 1);
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else
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ret = rpmh_write_async(vreg->dev, RPMH_ACTIVE_ONLY_STATE, cmd,
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1);
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return ret;
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}
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static int _rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev,
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unsigned int selector, bool wait_for_ack)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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struct tcs_cmd cmd = {
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.addr = vreg->addr + RPMH_REGULATOR_REG_VRM_VOLTAGE,
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};
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int ret;
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/* VRM voltage control register is set with voltage in millivolts. */
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cmd.data = DIV_ROUND_UP(regulator_list_voltage_linear_range(rdev,
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selector), 1000);
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ret = rpmh_regulator_send_request(vreg, &cmd, wait_for_ack);
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if (!ret)
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vreg->voltage_selector = selector;
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return ret;
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}
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static int rpmh_regulator_vrm_set_voltage_sel(struct regulator_dev *rdev,
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unsigned int selector)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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if (vreg->enabled == -EINVAL) {
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/*
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* Cache the voltage and send it later when the regulator is
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* enabled or disabled.
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*/
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vreg->voltage_selector = selector;
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return 0;
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}
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return _rpmh_regulator_vrm_set_voltage_sel(rdev, selector,
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selector > vreg->voltage_selector);
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}
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static int rpmh_regulator_vrm_get_voltage_sel(struct regulator_dev *rdev)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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return vreg->voltage_selector;
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}
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static int rpmh_regulator_is_enabled(struct regulator_dev *rdev)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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return vreg->enabled;
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}
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static int rpmh_regulator_set_enable_state(struct regulator_dev *rdev,
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bool enable)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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struct tcs_cmd cmd = {
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.addr = vreg->addr + RPMH_REGULATOR_REG_ENABLE,
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.data = enable,
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};
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int ret;
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if (vreg->enabled == -EINVAL &&
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vreg->voltage_selector != -ENOTRECOVERABLE) {
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ret = _rpmh_regulator_vrm_set_voltage_sel(rdev,
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vreg->voltage_selector, true);
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if (ret < 0)
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return ret;
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}
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ret = rpmh_regulator_send_request(vreg, &cmd, enable);
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if (!ret)
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vreg->enabled = enable;
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return ret;
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}
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static int rpmh_regulator_enable(struct regulator_dev *rdev)
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{
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return rpmh_regulator_set_enable_state(rdev, true);
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}
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static int rpmh_regulator_disable(struct regulator_dev *rdev)
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{
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return rpmh_regulator_set_enable_state(rdev, false);
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}
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static int rpmh_regulator_vrm_set_mode_bypass(struct rpmh_vreg *vreg,
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unsigned int mode, bool bypassed)
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{
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struct tcs_cmd cmd = {
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.addr = vreg->addr + RPMH_REGULATOR_REG_VRM_MODE,
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};
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int pmic_mode;
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if (mode > REGULATOR_MODE_STANDBY)
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return -EINVAL;
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pmic_mode = vreg->hw_data->pmic_mode_map[mode];
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if (pmic_mode < 0)
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return pmic_mode;
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if (bypassed)
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cmd.data = PMIC4_BOB_MODE_PASS;
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else
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cmd.data = pmic_mode;
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return rpmh_regulator_send_request(vreg, &cmd, true);
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}
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static int rpmh_regulator_vrm_set_mode(struct regulator_dev *rdev,
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unsigned int mode)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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int ret;
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if (mode == vreg->mode)
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return 0;
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ret = rpmh_regulator_vrm_set_mode_bypass(vreg, mode, vreg->bypassed);
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if (!ret)
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vreg->mode = mode;
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return ret;
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}
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static unsigned int rpmh_regulator_vrm_get_mode(struct regulator_dev *rdev)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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return vreg->mode;
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}
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/**
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* rpmh_regulator_vrm_set_load() - set the regulator mode based upon the load
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* current requested
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* @rdev: Regulator device pointer for the rpmh-regulator
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* @load_uA: Aggregated load current in microamps
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*
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* This function is used in the regulator_ops for VRM type RPMh regulator
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* devices.
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*
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* Return: 0 on success, errno on failure
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*/
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static int rpmh_regulator_vrm_set_load(struct regulator_dev *rdev, int load_uA)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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unsigned int mode;
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if (load_uA >= vreg->hw_data->hpm_min_load_uA)
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mode = REGULATOR_MODE_NORMAL;
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else
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mode = REGULATOR_MODE_IDLE;
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return rpmh_regulator_vrm_set_mode(rdev, mode);
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}
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static int rpmh_regulator_vrm_set_bypass(struct regulator_dev *rdev,
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bool enable)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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int ret;
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if (vreg->bypassed == enable)
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return 0;
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ret = rpmh_regulator_vrm_set_mode_bypass(vreg, vreg->mode, enable);
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if (!ret)
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vreg->bypassed = enable;
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return ret;
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}
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static int rpmh_regulator_vrm_get_bypass(struct regulator_dev *rdev,
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bool *enable)
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{
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struct rpmh_vreg *vreg = rdev_get_drvdata(rdev);
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*enable = vreg->bypassed;
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return 0;
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}
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static const struct regulator_ops rpmh_regulator_vrm_ops = {
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.enable = rpmh_regulator_enable,
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.disable = rpmh_regulator_disable,
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.is_enabled = rpmh_regulator_is_enabled,
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.set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
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.get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
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.list_voltage = regulator_list_voltage_linear_range,
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.set_mode = rpmh_regulator_vrm_set_mode,
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.get_mode = rpmh_regulator_vrm_get_mode,
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};
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static const struct regulator_ops rpmh_regulator_vrm_drms_ops = {
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.enable = rpmh_regulator_enable,
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.disable = rpmh_regulator_disable,
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.is_enabled = rpmh_regulator_is_enabled,
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.set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
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.get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
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.list_voltage = regulator_list_voltage_linear_range,
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.set_mode = rpmh_regulator_vrm_set_mode,
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.get_mode = rpmh_regulator_vrm_get_mode,
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.set_load = rpmh_regulator_vrm_set_load,
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};
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static const struct regulator_ops rpmh_regulator_vrm_bypass_ops = {
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.enable = rpmh_regulator_enable,
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.disable = rpmh_regulator_disable,
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.is_enabled = rpmh_regulator_is_enabled,
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.set_voltage_sel = rpmh_regulator_vrm_set_voltage_sel,
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.get_voltage_sel = rpmh_regulator_vrm_get_voltage_sel,
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.list_voltage = regulator_list_voltage_linear_range,
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.set_mode = rpmh_regulator_vrm_set_mode,
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.get_mode = rpmh_regulator_vrm_get_mode,
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.set_bypass = rpmh_regulator_vrm_set_bypass,
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.get_bypass = rpmh_regulator_vrm_get_bypass,
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};
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static const struct regulator_ops rpmh_regulator_xob_ops = {
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.enable = rpmh_regulator_enable,
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.disable = rpmh_regulator_disable,
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.is_enabled = rpmh_regulator_is_enabled,
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};
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/**
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* rpmh_regulator_init_vreg() - initialize all attributes of an rpmh-regulator
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* vreg: Pointer to the individual rpmh-regulator resource
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* dev: Pointer to the top level rpmh-regulator PMIC device
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* node: Pointer to the individual rpmh-regulator resource
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* device node
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* pmic_id: String used to identify the top level rpmh-regulator
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* PMIC device on the board
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* pmic_rpmh_data: Pointer to a null-terminated array of rpmh-regulator
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* resources defined for the top level PMIC device
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*
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* Return: 0 on success, errno on failure
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*/
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static int rpmh_regulator_init_vreg(struct rpmh_vreg *vreg, struct device *dev,
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struct device_node *node, const char *pmic_id,
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const struct rpmh_vreg_init_data *pmic_rpmh_data)
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{
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struct regulator_config reg_config = {};
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char rpmh_resource_name[20] = "";
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const struct rpmh_vreg_init_data *rpmh_data;
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struct regulator_init_data *init_data;
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struct regulator_dev *rdev;
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int ret;
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vreg->dev = dev;
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||
|
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");
|