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path: root/drivers/regulator/pv88080-regulator.c
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Diffstat (limited to 'drivers/regulator/pv88080-regulator.c')
-rw-r--r--drivers/regulator/pv88080-regulator.c140
1 files changed, 33 insertions, 107 deletions
diff --git a/drivers/regulator/pv88080-regulator.c b/drivers/regulator/pv88080-regulator.c
index 9a08cb2de501..9fe539a34786 100644
--- a/drivers/regulator/pv88080-regulator.c
+++ b/drivers/regulator/pv88080-regulator.c
@@ -1,20 +1,11 @@
-/*
- * pv88080-regulator.c - Regulator device driver for PV88080
- * Copyright (C) 2016 Powerventure Semiconductor Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * 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.
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// pv88080-regulator.c - Regulator device driver for PV88080
+// Copyright (C) 2016 Powerventure Semiconductor Ltd.
#include <linux/err.h>
#include <linux/i2c.h>
+#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/init.h>
@@ -38,19 +29,9 @@ enum {
PV88080_ID_HVBUCK,
};
-enum pv88080_types {
- TYPE_PV88080_AA,
- TYPE_PV88080_BA,
-};
-
struct pv88080_regulator {
struct regulator_desc desc;
- /* Current limiting */
- unsigned int n_current_limits;
- const int *current_limits;
- unsigned int limit_mask;
unsigned int mode_reg;
- unsigned int limit_reg;
unsigned int conf2;
unsigned int conf5;
};
@@ -102,11 +83,11 @@ static const struct regmap_config pv88080_regmap_config = {
* Entry indexes corresponds to register values.
*/
-static const int pv88080_buck1_limits[] = {
+static const unsigned int pv88080_buck1_limits[] = {
3230000, 5130000, 6960000, 8790000
};
-static const int pv88080_buck23_limits[] = {
+static const unsigned int pv88080_buck23_limits[] = {
1496000, 2393000, 3291000, 4189000
};
@@ -211,16 +192,6 @@ static const struct pv88080_compatible_regmap pv88080_ba_regs = {
.hvbuck_vsel_mask = PV88080_VHVBUCK_MASK,
};
-#ifdef CONFIG_OF
-static const struct of_device_id pv88080_dt_ids[] = {
- { .compatible = "pvs,pv88080", .data = (void *)TYPE_PV88080_AA },
- { .compatible = "pvs,pv88080-aa", .data = (void *)TYPE_PV88080_AA },
- { .compatible = "pvs,pv88080-ba", .data = (void *)TYPE_PV88080_BA },
- {},
-};
-MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
-#endif
-
static unsigned int pv88080_buck_get_mode(struct regulator_dev *rdev)
{
struct pv88080_regulator *info = rdev_get_drvdata(rdev);
@@ -272,40 +243,6 @@ static int pv88080_buck_set_mode(struct regulator_dev *rdev,
PV88080_BUCK1_MODE_MASK, val);
}
-static int pv88080_set_current_limit(struct regulator_dev *rdev, int min,
- int max)
-{
- struct pv88080_regulator *info = rdev_get_drvdata(rdev);
- int i;
-
- /* search for closest to maximum */
- for (i = info->n_current_limits; i >= 0; i--) {
- if (min <= info->current_limits[i]
- && max >= info->current_limits[i]) {
- return regmap_update_bits(rdev->regmap,
- info->limit_reg,
- info->limit_mask,
- i << PV88080_BUCK1_ILIM_SHIFT);
- }
- }
-
- return -EINVAL;
-}
-
-static int pv88080_get_current_limit(struct regulator_dev *rdev)
-{
- struct pv88080_regulator *info = rdev_get_drvdata(rdev);
- unsigned int data;
- int ret;
-
- ret = regmap_read(rdev->regmap, info->limit_reg, &data);
- if (ret < 0)
- return ret;
-
- data = (data & info->limit_mask) >> PV88080_BUCK1_ILIM_SHIFT;
- return info->current_limits[data];
-}
-
static const struct regulator_ops pv88080_buck_ops = {
.get_mode = pv88080_buck_get_mode,
.set_mode = pv88080_buck_set_mode,
@@ -315,8 +252,8 @@ static const struct regulator_ops pv88080_buck_ops = {
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.list_voltage = regulator_list_voltage_linear,
- .set_current_limit = pv88080_set_current_limit,
- .get_current_limit = pv88080_get_current_limit,
+ .set_current_limit = regulator_set_current_limit_regmap,
+ .get_current_limit = regulator_get_current_limit_regmap,
};
static const struct regulator_ops pv88080_hvbuck_ops = {
@@ -341,9 +278,9 @@ static const struct regulator_ops pv88080_hvbuck_ops = {
.min_uV = min, \
.uV_step = step, \
.n_voltages = ((max) - (min))/(step) + 1, \
+ .curr_table = limits_array, \
+ .n_current_limits = ARRAY_SIZE(limits_array), \
},\
- .current_limits = limits_array, \
- .n_current_limits = ARRAY_SIZE(limits_array), \
}
#define PV88080_HVBUCK(chip, regl_name, min, step, max) \
@@ -383,11 +320,10 @@ static irqreturn_t pv88080_irq_handler(int irq, void *data)
if (reg_val & PV88080_E_VDD_FLT) {
for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
- if (chip->rdev[i] != NULL) {
+ if (chip->rdev[i] != NULL)
regulator_notifier_call_chain(chip->rdev[i],
REGULATOR_EVENT_UNDER_VOLTAGE,
NULL);
- }
}
err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
@@ -400,11 +336,10 @@ static irqreturn_t pv88080_irq_handler(int irq, void *data)
if (reg_val & PV88080_E_OVER_TEMP) {
for (i = 0; i < PV88080_MAX_REGULATORS; i++) {
- if (chip->rdev[i] != NULL) {
+ if (chip->rdev[i] != NULL)
regulator_notifier_call_chain(chip->rdev[i],
REGULATOR_EVENT_OVER_TEMP,
NULL);
- }
}
err = regmap_write(chip->regmap, PV88080_REG_EVENT_A,
@@ -425,13 +360,11 @@ error_i2c:
/*
* I2C driver interface functions
*/
-static int pv88080_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int pv88080_i2c_probe(struct i2c_client *i2c)
{
struct regulator_init_data *init_data = dev_get_platdata(&i2c->dev);
struct pv88080 *chip;
const struct pv88080_compatible_regmap *regmap_config;
- const struct of_device_id *match;
struct regulator_config config = { };
int i, error, ret;
unsigned int conf2, conf5;
@@ -449,16 +382,9 @@ static int pv88080_i2c_probe(struct i2c_client *i2c,
return error;
}
- if (i2c->dev.of_node) {
- match = of_match_node(pv88080_dt_ids, i2c->dev.of_node);
- if (!match) {
- dev_err(chip->dev, "Failed to get of_match_node\n");
- return -EINVAL;
- }
- chip->type = (unsigned long)match->data;
- } else {
- chip->type = id->driver_data;
- }
+ chip->regmap_config = i2c_get_match_data(i2c);
+ if (!chip->regmap_config)
+ return -ENODEV;
i2c_set_clientdata(i2c, chip);
@@ -503,15 +429,6 @@ static int pv88080_i2c_probe(struct i2c_client *i2c,
dev_warn(chip->dev, "No IRQ configured\n");
}
- switch (chip->type) {
- case TYPE_PV88080_AA:
- chip->regmap_config = &pv88080_aa_regs;
- break;
- case TYPE_PV88080_BA:
- chip->regmap_config = &pv88080_ba_regs;
- break;
- }
-
regmap_config = chip->regmap_config;
config.dev = chip->dev;
config.regmap = chip->regmap;
@@ -521,9 +438,9 @@ static int pv88080_i2c_probe(struct i2c_client *i2c,
if (init_data)
config.init_data = &init_data[i];
- pv88080_regulator_info[i].limit_reg
+ pv88080_regulator_info[i].desc.csel_reg
= regmap_config->buck_regmap[i].buck_limit_reg;
- pv88080_regulator_info[i].limit_mask
+ pv88080_regulator_info[i].desc.csel_mask
= regmap_config->buck_regmap[i].buck_limit_mask;
pv88080_regulator_info[i].mode_reg
= regmap_config->buck_regmap[i].buck_mode_reg;
@@ -597,18 +514,27 @@ static int pv88080_i2c_probe(struct i2c_client *i2c,
return 0;
}
+static const struct of_device_id pv88080_dt_ids[] = {
+ { .compatible = "pvs,pv88080", .data = &pv88080_aa_regs },
+ { .compatible = "pvs,pv88080-aa", .data = &pv88080_aa_regs },
+ { .compatible = "pvs,pv88080-ba", .data = &pv88080_ba_regs },
+ {}
+};
+MODULE_DEVICE_TABLE(of, pv88080_dt_ids);
+
static const struct i2c_device_id pv88080_i2c_id[] = {
- { "pv88080", TYPE_PV88080_AA },
- { "pv88080-aa", TYPE_PV88080_AA },
- { "pv88080-ba", TYPE_PV88080_BA },
- {},
+ { "pv88080", (kernel_ulong_t)&pv88080_aa_regs },
+ { "pv88080-aa", (kernel_ulong_t)&pv88080_aa_regs },
+ { "pv88080-ba", (kernel_ulong_t)&pv88080_ba_regs },
+ {}
};
MODULE_DEVICE_TABLE(i2c, pv88080_i2c_id);
static struct i2c_driver pv88080_regulator_driver = {
.driver = {
.name = "pv88080",
- .of_match_table = of_match_ptr(pv88080_dt_ids),
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ .of_match_table = pv88080_dt_ids,
},
.probe = pv88080_i2c_probe,
.id_table = pv88080_i2c_id,
generated by cgit (git 2.34.1) at 2025-12-25 09:55:00 +0000