redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity
alistair23-linux/drivers/regulator/qcom_rpm-regulator.c
Thomas Gleixner 97fb5e8d9b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license version 2 and
  only version 2 as published by the free software foundation this
  program is distributed in the hope that it will be useful but
  without any warranty without even the implied warranty of
  merchantability or fitness for a particular purpose see the gnu
  general public license for more details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 294 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00

1013 lines
29 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2014, Sony Mobile Communications AB.
* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/qcom_rpm.h>
#include <dt-bindings/mfd/qcom-rpm.h>
#define MAX_REQUEST_LEN 2
struct request_member {
int word;
unsigned int mask;
int shift;
};
struct rpm_reg_parts {
struct request_member mV; /* used if voltage is in mV */
struct request_member uV; /* used if voltage is in uV */
struct request_member ip; /* peak current in mA */
struct request_member pd; /* pull down enable */
struct request_member ia; /* average current in mA */
struct request_member fm; /* force mode */
struct request_member pm; /* power mode */
struct request_member pc; /* pin control */
struct request_member pf; /* pin function */
struct request_member enable_state; /* NCP and switch */
struct request_member comp_mode; /* NCP */
struct request_member freq; /* frequency: NCP and SMPS */
struct request_member freq_clk_src; /* clock source: SMPS */
struct request_member hpm; /* switch: control OCP and SS */
int request_len;
};
#define FORCE_MODE_IS_2_BITS(reg) \
(((reg)->parts->fm.mask >> (reg)->parts->fm.shift) == 3)
struct qcom_rpm_reg {
struct qcom_rpm *rpm;
struct mutex lock;
struct device *dev;
struct regulator_desc desc;
const struct rpm_reg_parts *parts;
int resource;
u32 val[MAX_REQUEST_LEN];
int uV;
int is_enabled;
bool supports_force_mode_auto;
bool supports_force_mode_bypass;
};
static const struct rpm_reg_parts rpm8660_ldo_parts = {
.request_len = 2,
.mV = { 0, 0x00000FFF, 0 },
.ip = { 0, 0x00FFF000, 12 },
.fm = { 0, 0x03000000, 24 },
.pc = { 0, 0x3C000000, 26 },
.pf = { 0, 0xC0000000, 30 },
.pd = { 1, 0x00000001, 0 },
.ia = { 1, 0x00001FFE, 1 },
};
static const struct rpm_reg_parts rpm8660_smps_parts = {
.request_len = 2,
.mV = { 0, 0x00000FFF, 0 },
.ip = { 0, 0x00FFF000, 12 },
.fm = { 0, 0x03000000, 24 },
.pc = { 0, 0x3C000000, 26 },
.pf = { 0, 0xC0000000, 30 },
.pd = { 1, 0x00000001, 0 },
.ia = { 1, 0x00001FFE, 1 },
.freq = { 1, 0x001FE000, 13 },
.freq_clk_src = { 1, 0x00600000, 21 },
};
static const struct rpm_reg_parts rpm8660_switch_parts = {
.request_len = 1,
.enable_state = { 0, 0x00000001, 0 },
.pd = { 0, 0x00000002, 1 },
.pc = { 0, 0x0000003C, 2 },
.pf = { 0, 0x000000C0, 6 },
.hpm = { 0, 0x00000300, 8 },
};
static const struct rpm_reg_parts rpm8660_ncp_parts = {
.request_len = 1,
.mV = { 0, 0x00000FFF, 0 },
.enable_state = { 0, 0x00001000, 12 },
.comp_mode = { 0, 0x00002000, 13 },
.freq = { 0, 0x003FC000, 14 },
};
static const struct rpm_reg_parts rpm8960_ldo_parts = {
.request_len = 2,
.uV = { 0, 0x007FFFFF, 0 },
.pd = { 0, 0x00800000, 23 },
.pc = { 0, 0x0F000000, 24 },
.pf = { 0, 0xF0000000, 28 },
.ip = { 1, 0x000003FF, 0 },
.ia = { 1, 0x000FFC00, 10 },
.fm = { 1, 0x00700000, 20 },
};
static const struct rpm_reg_parts rpm8960_smps_parts = {
.request_len = 2,
.uV = { 0, 0x007FFFFF, 0 },
.pd = { 0, 0x00800000, 23 },
.pc = { 0, 0x0F000000, 24 },
.pf = { 0, 0xF0000000, 28 },
.ip = { 1, 0x000003FF, 0 },
.ia = { 1, 0x000FFC00, 10 },
.fm = { 1, 0x00700000, 20 },
.pm = { 1, 0x00800000, 23 },
.freq = { 1, 0x1F000000, 24 },
.freq_clk_src = { 1, 0x60000000, 29 },
};
static const struct rpm_reg_parts rpm8960_switch_parts = {
.request_len = 1,
.enable_state = { 0, 0x00000001, 0 },
.pd = { 0, 0x00000002, 1 },
.pc = { 0, 0x0000003C, 2 },
.pf = { 0, 0x000003C0, 6 },
.hpm = { 0, 0x00000C00, 10 },
};
static const struct rpm_reg_parts rpm8960_ncp_parts = {
.request_len = 1,
.uV = { 0, 0x007FFFFF, 0 },
.enable_state = { 0, 0x00800000, 23 },
.comp_mode = { 0, 0x01000000, 24 },
.freq = { 0, 0x3E000000, 25 },
};
/*
* Physically available PMIC regulator voltage ranges
*/
static const struct regulator_linear_range pldo_ranges[] = {
REGULATOR_LINEAR_RANGE( 750000, 0, 59, 12500),
REGULATOR_LINEAR_RANGE(1500000, 60, 123, 25000),
REGULATOR_LINEAR_RANGE(3100000, 124, 160, 50000),
};
static const struct regulator_linear_range nldo_ranges[] = {
REGULATOR_LINEAR_RANGE( 750000, 0, 63, 12500),
};
static const struct regulator_linear_range nldo1200_ranges[] = {
REGULATOR_LINEAR_RANGE( 375000, 0, 59, 6250),
REGULATOR_LINEAR_RANGE( 750000, 60, 123, 12500),
};
static const struct regulator_linear_range smps_ranges[] = {
REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500),
REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500),
REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000),
};
static const struct regulator_linear_range ftsmps_ranges[] = {
REGULATOR_LINEAR_RANGE( 350000, 0, 6, 50000),
REGULATOR_LINEAR_RANGE( 700000, 7, 63, 12500),
REGULATOR_LINEAR_RANGE(1500000, 64, 100, 50000),
};
static const struct regulator_linear_range smb208_ranges[] = {
REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500),
REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500),
REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000),
REGULATOR_LINEAR_RANGE(3100000, 154, 234, 25000),
};
static const struct regulator_linear_range ncp_ranges[] = {
REGULATOR_LINEAR_RANGE(1500000, 0, 31, 50000),
};
static int rpm_reg_write(struct qcom_rpm_reg *vreg,
const struct request_member *req,
const int value)
{
if (WARN_ON((value << req->shift) & ~req->mask))
return -EINVAL;
vreg->val[req->word] &= ~req->mask;
vreg->val[req->word] |= value << req->shift;
return qcom_rpm_write(vreg->rpm,
QCOM_RPM_ACTIVE_STATE,
vreg->resource,
vreg->val,
vreg->parts->request_len);
}
static int rpm_reg_set_mV_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->mV;
int ret = 0;
int uV;
if (req->mask == 0)
return -EINVAL;
uV = regulator_list_voltage_linear_range(rdev, selector);
if (uV < 0)
return uV;
mutex_lock(&vreg->lock);
if (vreg->is_enabled)
ret = rpm_reg_write(vreg, req, uV / 1000);
if (!ret)
vreg->uV = uV;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_set_uV_sel(struct regulator_dev *rdev,
unsigned selector)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->uV;
int ret = 0;
int uV;
if (req->mask == 0)
return -EINVAL;
uV = regulator_list_voltage_linear_range(rdev, selector);
if (uV < 0)
return uV;
mutex_lock(&vreg->lock);
if (vreg->is_enabled)
ret = rpm_reg_write(vreg, req, uV);
if (!ret)
vreg->uV = uV;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_get_voltage(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
return vreg->uV;
}
static int rpm_reg_mV_enable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->mV;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, vreg->uV / 1000);
if (!ret)
vreg->is_enabled = 1;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_uV_enable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->uV;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, vreg->uV);
if (!ret)
vreg->is_enabled = 1;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_switch_enable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->enable_state;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, 1);
if (!ret)
vreg->is_enabled = 1;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_mV_disable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->mV;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, 0);
if (!ret)
vreg->is_enabled = 0;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_uV_disable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->uV;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, 0);
if (!ret)
vreg->is_enabled = 0;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_switch_disable(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->enable_state;
int ret;
if (req->mask == 0)
return -EINVAL;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, 0);
if (!ret)
vreg->is_enabled = 0;
mutex_unlock(&vreg->lock);
return ret;
}
static int rpm_reg_is_enabled(struct regulator_dev *rdev)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
return vreg->is_enabled;
}
static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA)
{
struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev);
const struct rpm_reg_parts *parts = vreg->parts;
const struct request_member *req = &parts->ia;
int load_mA = load_uA / 1000;
int max_mA = req->mask >> req->shift;
int ret;
if (req->mask == 0)
return -EINVAL;
if (load_mA > max_mA)
load_mA = max_mA;
mutex_lock(&vreg->lock);
ret = rpm_reg_write(vreg, req, load_mA);
mutex_unlock(&vreg->lock);
return ret;
}
static struct regulator_ops uV_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = rpm_reg_set_uV_sel,
.get_voltage = rpm_reg_get_voltage,
.enable = rpm_reg_uV_enable,
.disable = rpm_reg_uV_disable,
.is_enabled = rpm_reg_is_enabled,
.set_load = rpm_reg_set_load,
};
static struct regulator_ops mV_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.set_voltage_sel = rpm_reg_set_mV_sel,
.get_voltage = rpm_reg_get_voltage,
.enable = rpm_reg_mV_enable,
.disable = rpm_reg_mV_disable,
.is_enabled = rpm_reg_is_enabled,
.set_load = rpm_reg_set_load,
};
static struct regulator_ops switch_ops = {
.enable = rpm_reg_switch_enable,
.disable = rpm_reg_switch_disable,
.is_enabled = rpm_reg_is_enabled,
};
/*
* PM8018 regulators
*/
static const struct qcom_rpm_reg pm8018_pldo = {
.desc.linear_ranges = pldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
.desc.n_voltages = 161,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8018_nldo = {
.desc.linear_ranges = nldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
.desc.n_voltages = 64,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8018_smps = {
.desc.linear_ranges = smps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges),
.desc.n_voltages = 154,
.desc.ops = &uV_ops,
.parts = &rpm8960_smps_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8018_switch = {
.desc.ops = &switch_ops,
.parts = &rpm8960_switch_parts,
};
/*
* PM8058 regulators
*/
static const struct qcom_rpm_reg pm8058_pldo = {
.desc.linear_ranges = pldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
.desc.n_voltages = 161,
.desc.ops = &mV_ops,
.parts = &rpm8660_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8058_nldo = {
.desc.linear_ranges = nldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
.desc.n_voltages = 64,
.desc.ops = &mV_ops,
.parts = &rpm8660_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8058_smps = {
.desc.linear_ranges = smps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges),
.desc.n_voltages = 154,
.desc.ops = &mV_ops,
.parts = &rpm8660_smps_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8058_ncp = {
.desc.linear_ranges = ncp_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges),
.desc.n_voltages = 32,
.desc.ops = &mV_ops,
.parts = &rpm8660_ncp_parts,
};
static const struct qcom_rpm_reg pm8058_switch = {
.desc.ops = &switch_ops,
.parts = &rpm8660_switch_parts,
};
/*
* PM8901 regulators
*/
static const struct qcom_rpm_reg pm8901_pldo = {
.desc.linear_ranges = pldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
.desc.n_voltages = 161,
.desc.ops = &mV_ops,
.parts = &rpm8660_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8901_nldo = {
.desc.linear_ranges = nldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
.desc.n_voltages = 64,
.desc.ops = &mV_ops,
.parts = &rpm8660_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8901_ftsmps = {
.desc.linear_ranges = ftsmps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(ftsmps_ranges),
.desc.n_voltages = 101,
.desc.ops = &mV_ops,
.parts = &rpm8660_smps_parts,
.supports_force_mode_auto = true,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8901_switch = {
.desc.ops = &switch_ops,
.parts = &rpm8660_switch_parts,
};
/*
* PM8921 regulators
*/
static const struct qcom_rpm_reg pm8921_pldo = {
.desc.linear_ranges = pldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
.desc.n_voltages = 161,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8921_nldo = {
.desc.linear_ranges = nldo_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
.desc.n_voltages = 64,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8921_nldo1200 = {
.desc.linear_ranges = nldo1200_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(nldo1200_ranges),
.desc.n_voltages = 124,
.desc.ops = &uV_ops,
.parts = &rpm8960_ldo_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = true,
};
static const struct qcom_rpm_reg pm8921_smps = {
.desc.linear_ranges = smps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges),
.desc.n_voltages = 154,
.desc.ops = &uV_ops,
.parts = &rpm8960_smps_parts,
.supports_force_mode_auto = true,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8921_ftsmps = {
.desc.linear_ranges = ftsmps_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(ftsmps_ranges),
.desc.n_voltages = 101,
.desc.ops = &uV_ops,
.parts = &rpm8960_smps_parts,
.supports_force_mode_auto = true,
.supports_force_mode_bypass = false,
};
static const struct qcom_rpm_reg pm8921_ncp = {
.desc.linear_ranges = ncp_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges),
.desc.n_voltages = 32,
.desc.ops = &uV_ops,
.parts = &rpm8960_ncp_parts,
};
static const struct qcom_rpm_reg pm8921_switch = {
.desc.ops = &switch_ops,
.parts = &rpm8960_switch_parts,
};
static const struct qcom_rpm_reg smb208_smps = {
.desc.linear_ranges = smb208_ranges,
.desc.n_linear_ranges = ARRAY_SIZE(smb208_ranges),
.desc.n_voltages = 235,
.desc.ops = &uV_ops,
.parts = &rpm8960_smps_parts,
.supports_force_mode_auto = false,
.supports_force_mode_bypass = false,
};
static int rpm_reg_set(struct qcom_rpm_reg *vreg,
const struct request_member *req,
const int value)
{
if (req->mask == 0 || (value << req->shift) & ~req->mask)
return -EINVAL;
vreg->val[req->word] &= ~req->mask;
vreg->val[req->word] |= value << req->shift;
return 0;
}
static int rpm_reg_of_parse_freq(struct device *dev,
struct device_node *node,
struct qcom_rpm_reg *vreg)
{
static const int freq_table[] = {
19200000, 9600000, 6400000, 4800000, 3840000, 3200000, 2740000,
2400000, 2130000, 1920000, 1750000, 1600000, 1480000, 1370000,
1280000, 1200000,
};
const char *key;
u32 freq;
int ret;
int i;
key = "qcom,switch-mode-frequency";
ret = of_property_read_u32(node, key, &freq);
if (ret) {
dev_err(dev, "regulator requires %s property\n", key);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(freq_table); i++) {
if (freq == freq_table[i]) {
rpm_reg_set(vreg, &vreg->parts->freq, i + 1);
return 0;
}
}
dev_err(dev, "invalid frequency %d\n", freq);
return -EINVAL;
}
static int rpm_reg_of_parse(struct device_node *node,
const struct regulator_desc *desc,
struct regulator_config *config)
{
struct qcom_rpm_reg *vreg = config->driver_data;
struct device *dev = config->dev;
const char *key;
u32 force_mode;
bool pwm;
u32 val;
int ret;
key = "bias-pull-down";
if (of_property_read_bool(node, key)) {
ret = rpm_reg_set(vreg, &vreg->parts->pd, 1);
if (ret) {
dev_err(dev, "%s is invalid", key);
return ret;
}
}
if (vreg->parts->freq.mask) {
ret = rpm_reg_of_parse_freq(dev, node, vreg);
if (ret < 0)
return ret;
}
if (vreg->parts->pm.mask) {
key = "qcom,power-mode-hysteretic";
pwm = !of_property_read_bool(node, key);
ret = rpm_reg_set(vreg, &vreg->parts->pm, pwm);
if (ret) {
dev_err(dev, "failed to set power mode\n");
return ret;
}
}
if (vreg->parts->fm.mask) {
force_mode = -1;
key = "qcom,force-mode";
ret = of_property_read_u32(node, key, &val);
if (ret == -EINVAL) {
val = QCOM_RPM_FORCE_MODE_NONE;
} else if (ret < 0) {
dev_err(dev, "failed to read %s\n", key);
return ret;
}
/*
* If force-mode is encoded as 2 bits then the
* possible register values are:
* NONE, LPM, HPM
* otherwise:
* NONE, LPM, AUTO, HPM, BYPASS
*/
switch (val) {
case QCOM_RPM_FORCE_MODE_NONE:
force_mode = 0;
break;
case QCOM_RPM_FORCE_MODE_LPM:
force_mode = 1;
break;
case QCOM_RPM_FORCE_MODE_HPM:
if (FORCE_MODE_IS_2_BITS(vreg))
force_mode = 2;
else
force_mode = 3;
break;
case QCOM_RPM_FORCE_MODE_AUTO:
if (vreg->supports_force_mode_auto)
force_mode = 2;
break;
case QCOM_RPM_FORCE_MODE_BYPASS:
if (vreg->supports_force_mode_bypass)
force_mode = 4;
break;
}
if (force_mode == -1) {
dev_err(dev, "invalid force mode\n");
return -EINVAL;
}
ret = rpm_reg_set(vreg, &vreg->parts->fm, force_mode);
if (ret) {
dev_err(dev, "failed to set force mode\n");
return ret;
}
}
return 0;
}
struct rpm_regulator_data {
const char *name;
int resource;
const struct qcom_rpm_reg *template;
const char *supply;
};
static const struct rpm_regulator_data rpm_pm8018_regulators[] = {
{ "s1", QCOM_RPM_PM8018_SMPS1, &pm8018_smps, "vdd_s1" },
{ "s2", QCOM_RPM_PM8018_SMPS2, &pm8018_smps, "vdd_s2" },
{ "s3", QCOM_RPM_PM8018_SMPS3, &pm8018_smps, "vdd_s3" },
{ "s4", QCOM_RPM_PM8018_SMPS4, &pm8018_smps, "vdd_s4" },
{ "s5", QCOM_RPM_PM8018_SMPS5, &pm8018_smps, "vdd_s5" },
{ "l2", QCOM_RPM_PM8018_LDO2, &pm8018_pldo, "vdd_l2" },
{ "l3", QCOM_RPM_PM8018_LDO3, &pm8018_pldo, "vdd_l3" },
{ "l4", QCOM_RPM_PM8018_LDO4, &pm8018_pldo, "vdd_l4" },
{ "l5", QCOM_RPM_PM8018_LDO5, &pm8018_pldo, "vdd_l5" },
{ "l6", QCOM_RPM_PM8018_LDO6, &pm8018_pldo, "vdd_l7" },
{ "l7", QCOM_RPM_PM8018_LDO7, &pm8018_pldo, "vdd_l7" },
{ "l8", QCOM_RPM_PM8018_LDO8, &pm8018_nldo, "vdd_l8" },
{ "l9", QCOM_RPM_PM8018_LDO9, &pm8921_nldo1200,
"vdd_l9_l10_l11_l12" },
{ "l10", QCOM_RPM_PM8018_LDO10, &pm8018_nldo, "vdd_l9_l10_l11_l12" },
{ "l11", QCOM_RPM_PM8018_LDO11, &pm8018_nldo, "vdd_l9_l10_l11_l12" },
{ "l12", QCOM_RPM_PM8018_LDO12, &pm8018_nldo, "vdd_l9_l10_l11_l12" },
{ "l14", QCOM_RPM_PM8018_LDO14, &pm8018_pldo, "vdd_l14" },
{ "lvs1", QCOM_RPM_PM8018_LVS1, &pm8018_switch, "lvs1_in" },
{ }
};
static const struct rpm_regulator_data rpm_pm8058_regulators[] = {
{ "l0", QCOM_RPM_PM8058_LDO0, &pm8058_nldo, "vdd_l0_l1_lvs" },
{ "l1", QCOM_RPM_PM8058_LDO1, &pm8058_nldo, "vdd_l0_l1_lvs" },
{ "l2", QCOM_RPM_PM8058_LDO2, &pm8058_pldo, "vdd_l2_l11_l12" },
{ "l3", QCOM_RPM_PM8058_LDO3, &pm8058_pldo, "vdd_l3_l4_l5" },
{ "l4", QCOM_RPM_PM8058_LDO4, &pm8058_pldo, "vdd_l3_l4_l5" },
{ "l5", QCOM_RPM_PM8058_LDO5, &pm8058_pldo, "vdd_l3_l4_l5" },
{ "l6", QCOM_RPM_PM8058_LDO6, &pm8058_pldo, "vdd_l6_l7" },
{ "l7", QCOM_RPM_PM8058_LDO7, &pm8058_pldo, "vdd_l6_l7" },
{ "l8", QCOM_RPM_PM8058_LDO8, &pm8058_pldo, "vdd_l8" },
{ "l9", QCOM_RPM_PM8058_LDO9, &pm8058_pldo, "vdd_l9" },
{ "l10", QCOM_RPM_PM8058_LDO10, &pm8058_pldo, "vdd_l10" },
{ "l11", QCOM_RPM_PM8058_LDO11, &pm8058_pldo, "vdd_l2_l11_l12" },
{ "l12", QCOM_RPM_PM8058_LDO12, &pm8058_pldo, "vdd_l2_l11_l12" },
{ "l13", QCOM_RPM_PM8058_LDO13, &pm8058_pldo, "vdd_l13_l16" },
{ "l14", QCOM_RPM_PM8058_LDO14, &pm8058_pldo, "vdd_l14_l15" },
{ "l15", QCOM_RPM_PM8058_LDO15, &pm8058_pldo, "vdd_l14_l15" },
{ "l16", QCOM_RPM_PM8058_LDO16, &pm8058_pldo, "vdd_l13_l16" },
{ "l17", QCOM_RPM_PM8058_LDO17, &pm8058_pldo, "vdd_l17_l18" },
{ "l18", QCOM_RPM_PM8058_LDO18, &pm8058_pldo, "vdd_l17_l18" },
{ "l19", QCOM_RPM_PM8058_LDO19, &pm8058_pldo, "vdd_l19_l20" },
{ "l20", QCOM_RPM_PM8058_LDO20, &pm8058_pldo, "vdd_l19_l20" },
{ "l21", QCOM_RPM_PM8058_LDO21, &pm8058_nldo, "vdd_l21" },
{ "l22", QCOM_RPM_PM8058_LDO22, &pm8058_nldo, "vdd_l22" },
{ "l23", QCOM_RPM_PM8058_LDO23, &pm8058_nldo, "vdd_l23_l24_l25" },
{ "l24", QCOM_RPM_PM8058_LDO24, &pm8058_nldo, "vdd_l23_l24_l25" },
{ "l25", QCOM_RPM_PM8058_LDO25, &pm8058_nldo, "vdd_l23_l24_l25" },
{ "s0", QCOM_RPM_PM8058_SMPS0, &pm8058_smps, "vdd_s0" },
{ "s1", QCOM_RPM_PM8058_SMPS1, &pm8058_smps, "vdd_s1" },
{ "s2", QCOM_RPM_PM8058_SMPS2, &pm8058_smps, "vdd_s2" },
{ "s3", QCOM_RPM_PM8058_SMPS3, &pm8058_smps, "vdd_s3" },
{ "s4", QCOM_RPM_PM8058_SMPS4, &pm8058_smps, "vdd_s4" },
{ "lvs0", QCOM_RPM_PM8058_LVS0, &pm8058_switch, "vdd_l0_l1_lvs" },
{ "lvs1", QCOM_RPM_PM8058_LVS1, &pm8058_switch, "vdd_l0_l1_lvs" },
{ "ncp", QCOM_RPM_PM8058_NCP, &pm8058_ncp, "vdd_ncp" },
{ }
};
static const struct rpm_regulator_data rpm_pm8901_regulators[] = {
{ "l0", QCOM_RPM_PM8901_LDO0, &pm8901_nldo, "vdd_l0" },
{ "l1", QCOM_RPM_PM8901_LDO1, &pm8901_pldo, "vdd_l1" },
{ "l2", QCOM_RPM_PM8901_LDO2, &pm8901_pldo, "vdd_l2" },
{ "l3", QCOM_RPM_PM8901_LDO3, &pm8901_pldo, "vdd_l3" },
{ "l4", QCOM_RPM_PM8901_LDO4, &pm8901_pldo, "vdd_l4" },
{ "l5", QCOM_RPM_PM8901_LDO5, &pm8901_pldo, "vdd_l5" },
{ "l6", QCOM_RPM_PM8901_LDO6, &pm8901_pldo, "vdd_l6" },
{ "s0", QCOM_RPM_PM8901_SMPS0, &pm8901_ftsmps, "vdd_s0" },
{ "s1", QCOM_RPM_PM8901_SMPS1, &pm8901_ftsmps, "vdd_s1" },
{ "s2", QCOM_RPM_PM8901_SMPS2, &pm8901_ftsmps, "vdd_s2" },
{ "s3", QCOM_RPM_PM8901_SMPS3, &pm8901_ftsmps, "vdd_s3" },
{ "s4", QCOM_RPM_PM8901_SMPS4, &pm8901_ftsmps, "vdd_s4" },
{ "lvs0", QCOM_RPM_PM8901_LVS0, &pm8901_switch, "lvs0_in" },
{ "lvs1", QCOM_RPM_PM8901_LVS1, &pm8901_switch, "lvs1_in" },
{ "lvs2", QCOM_RPM_PM8901_LVS2, &pm8901_switch, "lvs2_in" },
{ "lvs3", QCOM_RPM_PM8901_LVS3, &pm8901_switch, "lvs3_in" },
{ "mvs", QCOM_RPM_PM8901_MVS, &pm8901_switch, "mvs_in" },
{ }
};
static const struct rpm_regulator_data rpm_pm8921_regulators[] = {
{ "s1", QCOM_RPM_PM8921_SMPS1, &pm8921_smps, "vdd_s1" },
{ "s2", QCOM_RPM_PM8921_SMPS2, &pm8921_smps, "vdd_s2" },
{ "s3", QCOM_RPM_PM8921_SMPS3, &pm8921_smps },
{ "s4", QCOM_RPM_PM8921_SMPS4, &pm8921_smps, "vdd_s4" },
{ "s7", QCOM_RPM_PM8921_SMPS7, &pm8921_smps, "vdd_s7" },
{ "s8", QCOM_RPM_PM8921_SMPS8, &pm8921_smps, "vdd_s8" },
{ "l1", QCOM_RPM_PM8921_LDO1, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
{ "l2", QCOM_RPM_PM8921_LDO2, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
{ "l3", QCOM_RPM_PM8921_LDO3, &pm8921_pldo, "vdd_l3_l15_l17" },
{ "l4", QCOM_RPM_PM8921_LDO4, &pm8921_pldo, "vdd_l4_l14" },
{ "l5", QCOM_RPM_PM8921_LDO5, &pm8921_pldo, "vdd_l5_l8_l16" },
{ "l6", QCOM_RPM_PM8921_LDO6, &pm8921_pldo, "vdd_l6_l7" },
{ "l7", QCOM_RPM_PM8921_LDO7, &pm8921_pldo, "vdd_l6_l7" },
{ "l8", QCOM_RPM_PM8921_LDO8, &pm8921_pldo, "vdd_l5_l8_l16" },
{ "l9", QCOM_RPM_PM8921_LDO9, &pm8921_pldo, "vdd_l9_l11" },
{ "l10", QCOM_RPM_PM8921_LDO10, &pm8921_pldo, "vdd_l10_l22" },
{ "l11", QCOM_RPM_PM8921_LDO11, &pm8921_pldo, "vdd_l9_l11" },
{ "l12", QCOM_RPM_PM8921_LDO12, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
{ "l14", QCOM_RPM_PM8921_LDO14, &pm8921_pldo, "vdd_l4_l14" },
{ "l15", QCOM_RPM_PM8921_LDO15, &pm8921_pldo, "vdd_l3_l15_l17" },
{ "l16", QCOM_RPM_PM8921_LDO16, &pm8921_pldo, "vdd_l5_l8_l16" },
{ "l17", QCOM_RPM_PM8921_LDO17, &pm8921_pldo, "vdd_l3_l15_l17" },
{ "l18", QCOM_RPM_PM8921_LDO18, &pm8921_nldo, "vdd_l1_l2_l12_l18" },
{ "l21", QCOM_RPM_PM8921_LDO21, &pm8921_pldo, "vdd_l21_l23_l29" },
{ "l22", QCOM_RPM_PM8921_LDO22, &pm8921_pldo, "vdd_l10_l22" },
{ "l23", QCOM_RPM_PM8921_LDO23, &pm8921_pldo, "vdd_l21_l23_l29" },
{ "l24", QCOM_RPM_PM8921_LDO24, &pm8921_nldo1200, "vdd_l24" },
{ "l25", QCOM_RPM_PM8921_LDO25, &pm8921_nldo1200, "vdd_l25" },
{ "l26", QCOM_RPM_PM8921_LDO26, &pm8921_nldo1200, "vdd_l26" },
{ "l27", QCOM_RPM_PM8921_LDO27, &pm8921_nldo1200, "vdd_l27" },
{ "l28", QCOM_RPM_PM8921_LDO28, &pm8921_nldo1200, "vdd_l28" },
{ "l29", QCOM_RPM_PM8921_LDO29, &pm8921_pldo, "vdd_l21_l23_l29" },
{ "lvs1", QCOM_RPM_PM8921_LVS1, &pm8921_switch, "vin_lvs1_3_6" },
{ "lvs2", QCOM_RPM_PM8921_LVS2, &pm8921_switch, "vin_lvs2" },
{ "lvs3", QCOM_RPM_PM8921_LVS3, &pm8921_switch, "vin_lvs1_3_6" },
{ "lvs4", QCOM_RPM_PM8921_LVS4, &pm8921_switch, "vin_lvs4_5_7" },
{ "lvs5", QCOM_RPM_PM8921_LVS5, &pm8921_switch, "vin_lvs4_5_7" },
{ "lvs6", QCOM_RPM_PM8921_LVS6, &pm8921_switch, "vin_lvs1_3_6" },
{ "lvs7", QCOM_RPM_PM8921_LVS7, &pm8921_switch, "vin_lvs4_5_7" },
{ "usb-switch", QCOM_RPM_USB_OTG_SWITCH, &pm8921_switch, "vin_5vs" },
{ "hdmi-switch", QCOM_RPM_HDMI_SWITCH, &pm8921_switch, "vin_5vs" },
{ "ncp", QCOM_RPM_PM8921_NCP, &pm8921_ncp, "vdd_ncp" },
{ }
};
static const struct of_device_id rpm_of_match[] = {
{ .compatible = "qcom,rpm-pm8018-regulators",
.data = &rpm_pm8018_regulators },
{ .compatible = "qcom,rpm-pm8058-regulators", .data = &rpm_pm8058_regulators },
{ .compatible = "qcom,rpm-pm8901-regulators", .data = &rpm_pm8901_regulators },
{ .compatible = "qcom,rpm-pm8921-regulators", .data = &rpm_pm8921_regulators },
{ }
};
MODULE_DEVICE_TABLE(of, rpm_of_match);
static int rpm_reg_probe(struct platform_device *pdev)
{
const struct rpm_regulator_data *reg;
const struct of_device_id *match;
struct regulator_config config = { };
struct regulator_dev *rdev;
struct qcom_rpm_reg *vreg;
struct qcom_rpm *rpm;
rpm = dev_get_drvdata(pdev->dev.parent);
if (!rpm) {
dev_err(&pdev->dev, "unable to retrieve handle to rpm\n");
return -ENODEV;
}
match = of_match_device(rpm_of_match, &pdev->dev);
if (!match) {
dev_err(&pdev->dev, "failed to match device\n");
return -ENODEV;
}
for (reg = match->data; reg->name; reg++) {
vreg = devm_kmalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL);
if (!vreg)
return -ENOMEM;
memcpy(vreg, reg->template, sizeof(*vreg));
mutex_init(&vreg->lock);
vreg->dev = &pdev->dev;
vreg->resource = reg->resource;
vreg->rpm = rpm;
vreg->desc.id = -1;
vreg->desc.owner = THIS_MODULE;
vreg->desc.type = REGULATOR_VOLTAGE;
vreg->desc.name = reg->name;
vreg->desc.supply_name = reg->supply;
vreg->desc.of_match = reg->name;
vreg->desc.of_parse_cb = rpm_reg_of_parse;
config.dev = &pdev->dev;
config.driver_data = vreg;
rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n", reg->name);
return PTR_ERR(rdev);
}
}
return 0;
}
static struct platform_driver rpm_reg_driver = {
.probe = rpm_reg_probe,
.driver = {
.name = "qcom_rpm_reg",
.of_match_table = of_match_ptr(rpm_of_match),
},
};
static int __init rpm_reg_init(void)
{
return platform_driver_register(&rpm_reg_driver);
}
subsys_initcall(rpm_reg_init);
static void __exit rpm_reg_exit(void)
{
platform_driver_unregister(&rpm_reg_driver);
}
module_exit(rpm_reg_exit)
MODULE_DESCRIPTION("Qualcomm RPM regulator driver");
MODULE_LICENSE("GPL v2");
View git blame Copy permalink