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path: root/drivers/regulator/tps65218-regulator.c
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Diffstat (limited to 'drivers/regulator/tps65218-regulator.c')
-rw-r--r--drivers/regulator/tps65218-regulator.c104
1 files changed, 48 insertions, 56 deletions
diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c
index 9aafbb03482d..f44b5767099c 100644
--- a/drivers/regulator/tps65218-regulator.c
+++ b/drivers/regulator/tps65218-regulator.c
@@ -1,38 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* tps65218-regulator.c
*
* Regulator driver for TPS65218 PMIC
*
- * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether expressed or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License version 2 for more details.
+ * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com/
*/
#include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>
-#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/tps65218.h>
-enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4,
- DCDC5, DCDC6, LDO1, LS3 };
-
#define TPS65218_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
- _em, _cr, _cm, _lr, _nlr, _delay, _fuv, _sr, _sm) \
+ _em, _cr, _cm, _lr, _nlr, _delay, _fuv, _sr, _sm, \
+ _ct, _ncl) \
{ \
.name = _name, \
.of_match = _of, \
@@ -45,6 +35,8 @@ enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4,
.vsel_mask = _vm, \
.csel_reg = _cr, \
.csel_mask = _cm, \
+ .curr_table = _ct, \
+ .n_current_limits = _ncl, \
.enable_reg = _er, \
.enable_mask = _em, \
.volt_table = NULL, \
@@ -56,17 +48,17 @@ enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4,
.bypass_mask = _sm, \
} \
-static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
+static const struct linear_range dcdc1_dcdc2_ranges[] = {
REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
};
-static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
+static const struct linear_range ldo1_dcdc3_ranges[] = {
REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
};
-static const struct regulator_linear_range dcdc4_ranges[] = {
+static const struct linear_range dcdc4_ranges[] = {
REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
REGULATOR_LINEAR_RANGE(1600000, 0x10, 0x34, 50000),
};
@@ -128,7 +120,7 @@ static int tps65218_pmic_set_suspend_enable(struct regulator_dev *dev)
struct tps65218 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
- if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
+ if (rid > TPS65218_LDO_1)
return -EINVAL;
return tps65218_clear_bits(tps, dev->desc->bypass_reg,
@@ -141,7 +133,7 @@ static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
struct tps65218 *tps = rdev_get_drvdata(dev);
unsigned int rid = rdev_get_id(dev);
- if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
+ if (rid > TPS65218_LDO_1)
return -EINVAL;
/*
@@ -154,7 +146,7 @@ static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
if (!tps->strobes[rid]) {
if (rid == TPS65218_DCDC_3)
- tps->info[rid]->strobe = 3;
+ tps->strobes[rid] = 3;
else
return -EINVAL;
}
@@ -165,7 +157,7 @@ static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
}
/* Operations permitted on DCDC1, DCDC2 */
-static struct regulator_ops tps65218_dcdc12_ops = {
+static const struct regulator_ops tps65218_dcdc12_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = tps65218_pmic_enable,
.disable = tps65218_pmic_disable,
@@ -179,7 +171,7 @@ static struct regulator_ops tps65218_dcdc12_ops = {
};
/* Operations permitted on DCDC3, DCDC4 and LDO1 */
-static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
+static const struct regulator_ops tps65218_ldo1_dcdc34_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = tps65218_pmic_enable,
.disable = tps65218_pmic_disable,
@@ -191,7 +183,7 @@ static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
.set_suspend_disable = tps65218_pmic_set_suspend_disable,
};
-static const int ls3_currents[] = { 100, 200, 500, 1000 };
+static const unsigned int ls3_currents[] = { 100000, 200000, 500000, 1000000 };
static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
int lim_uA)
@@ -207,7 +199,8 @@ static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
return -EINVAL;
return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
- index << 2, TPS65218_PROTECT_L1);
+ index << __builtin_ctz(dev->desc->csel_mask),
+ TPS65218_PROTECT_L1);
}
static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
@@ -217,7 +210,7 @@ static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
unsigned int num_currents = ARRAY_SIZE(ls3_currents);
struct tps65218 *tps = rdev_get_drvdata(dev);
- while (index < num_currents && ls3_currents[index] < max_uA)
+ while (index < num_currents && ls3_currents[index] <= max_uA)
index++;
index--;
@@ -226,35 +219,21 @@ static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
return -EINVAL;
return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
- index << 2, TPS65218_PROTECT_L1);
-}
-
-static int tps65218_pmic_get_current_limit(struct regulator_dev *dev)
-{
- int retval;
- unsigned int index;
- struct tps65218 *tps = rdev_get_drvdata(dev);
-
- retval = regmap_read(tps->regmap, dev->desc->csel_reg, &index);
- if (retval < 0)
- return retval;
-
- index = (index & dev->desc->csel_mask) >> 2;
-
- return ls3_currents[index];
+ index << __builtin_ctz(dev->desc->csel_mask),
+ TPS65218_PROTECT_L1);
}
-static struct regulator_ops tps65218_ls3_ops = {
+static const struct regulator_ops tps65218_ls23_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = tps65218_pmic_enable,
.disable = tps65218_pmic_disable,
.set_input_current_limit = tps65218_pmic_set_input_current_lim,
.set_current_limit = tps65218_pmic_set_current_limit,
- .get_current_limit = tps65218_pmic_get_current_limit,
+ .get_current_limit = regulator_get_current_limit_regmap,
};
/* Operations permitted on DCDC5, DCDC6 */
-static struct regulator_ops tps65218_dcdc56_pmic_ops = {
+static const struct regulator_ops tps65218_dcdc56_pmic_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = tps65218_pmic_enable,
.disable = tps65218_pmic_disable,
@@ -269,48 +248,57 @@ static const struct regulator_desc regulators[] = {
TPS65218_CONTROL_DCDC1_MASK, TPS65218_REG_ENABLE1,
TPS65218_ENABLE1_DC1_EN, 0, 0, dcdc1_dcdc2_ranges,
2, 4000, 0, TPS65218_REG_SEQ3,
- TPS65218_SEQ3_DC1_SEQ_MASK),
+ TPS65218_SEQ3_DC1_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("DCDC2", "regulator-dcdc2", TPS65218_DCDC_2,
REGULATOR_VOLTAGE, tps65218_dcdc12_ops, 64,
TPS65218_REG_CONTROL_DCDC2,
TPS65218_CONTROL_DCDC2_MASK, TPS65218_REG_ENABLE1,
TPS65218_ENABLE1_DC2_EN, 0, 0, dcdc1_dcdc2_ranges,
2, 4000, 0, TPS65218_REG_SEQ3,
- TPS65218_SEQ3_DC2_SEQ_MASK),
+ TPS65218_SEQ3_DC2_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("DCDC3", "regulator-dcdc3", TPS65218_DCDC_3,
REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 64,
TPS65218_REG_CONTROL_DCDC3,
TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
TPS65218_ENABLE1_DC3_EN, 0, 0, ldo1_dcdc3_ranges, 2,
- 0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC3_SEQ_MASK),
+ 0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC3_SEQ_MASK,
+ NULL, 0),
TPS65218_REGULATOR("DCDC4", "regulator-dcdc4", TPS65218_DCDC_4,
REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 53,
TPS65218_REG_CONTROL_DCDC4,
TPS65218_CONTROL_DCDC4_MASK, TPS65218_REG_ENABLE1,
TPS65218_ENABLE1_DC4_EN, 0, 0, dcdc4_ranges, 2,
- 0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC4_SEQ_MASK),
+ 0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC4_SEQ_MASK,
+ NULL, 0),
TPS65218_REGULATOR("DCDC5", "regulator-dcdc5", TPS65218_DCDC_5,
REGULATOR_VOLTAGE, tps65218_dcdc56_pmic_ops, 1, -1,
-1, TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC5_EN, 0,
0, NULL, 0, 0, 1000000, TPS65218_REG_SEQ5,
- TPS65218_SEQ5_DC5_SEQ_MASK),
+ TPS65218_SEQ5_DC5_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("DCDC6", "regulator-dcdc6", TPS65218_DCDC_6,
REGULATOR_VOLTAGE, tps65218_dcdc56_pmic_ops, 1, -1,
-1, TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, 0,
0, NULL, 0, 0, 1800000, TPS65218_REG_SEQ5,
- TPS65218_SEQ5_DC6_SEQ_MASK),
+ TPS65218_SEQ5_DC6_SEQ_MASK, NULL, 0),
TPS65218_REGULATOR("LDO1", "regulator-ldo1", TPS65218_LDO_1,
REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 64,
TPS65218_REG_CONTROL_LDO1,
TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
TPS65218_ENABLE2_LDO1_EN, 0, 0, ldo1_dcdc3_ranges,
2, 0, 0, TPS65218_REG_SEQ6,
- TPS65218_SEQ6_LDO1_SEQ_MASK),
+ TPS65218_SEQ6_LDO1_SEQ_MASK, NULL, 0),
+ TPS65218_REGULATOR("LS2", "regulator-ls2", TPS65218_LS_2,
+ REGULATOR_CURRENT, tps65218_ls23_ops, 0, 0, 0,
+ TPS65218_REG_ENABLE2, TPS65218_ENABLE2_LS2_EN,
+ TPS65218_REG_CONFIG2, TPS65218_CONFIG2_LS2ILIM_MASK,
+ NULL, 0, 0, 0, 0, 0, ls3_currents,
+ ARRAY_SIZE(ls3_currents)),
TPS65218_REGULATOR("LS3", "regulator-ls3", TPS65218_LS_3,
- REGULATOR_CURRENT, tps65218_ls3_ops, 0, 0, 0,
+ REGULATOR_CURRENT, tps65218_ls23_ops, 0, 0, 0,
TPS65218_REG_ENABLE2, TPS65218_ENABLE2_LS3_EN,
TPS65218_REG_CONFIG2, TPS65218_CONFIG2_LS3ILIM_MASK,
- NULL, 0, 0, 0, 0, 0),
+ NULL, 0, 0, 0, 0, 0, ls3_currents,
+ ARRAY_SIZE(ls3_currents)),
};
static int tps65218_regulator_probe(struct platform_device *pdev)
@@ -327,8 +315,11 @@ static int tps65218_regulator_probe(struct platform_device *pdev)
config.regmap = tps->regmap;
/* Allocate memory for strobes */
- tps->strobes = devm_kzalloc(&pdev->dev, sizeof(u8) *
- TPS65218_NUM_REGULATOR, GFP_KERNEL);
+ tps->strobes = devm_kcalloc(&pdev->dev,
+ TPS65218_NUM_REGULATOR, sizeof(u8),
+ GFP_KERNEL);
+ if (!tps->strobes)
+ return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
rdev = devm_regulator_register(&pdev->dev, &regulators[i],
@@ -358,6 +349,7 @@ MODULE_DEVICE_TABLE(platform, tps65218_regulator_id_table);
static struct platform_driver tps65218_regulator_driver = {
.driver = {
.name = "tps65218-pmic",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = tps65218_regulator_probe,
.id_table = tps65218_regulator_id_table,
generated by cgit (git 2.34.1) at 2025-12-26 09:00:29 +0000