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path: root/drivers/regulator/lp87565-regulator.c
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Diffstat (limited to 'drivers/regulator/lp87565-regulator.c')
-rw-r--r--drivers/regulator/lp87565-regulator.c142
1 files changed, 78 insertions, 64 deletions
diff --git a/drivers/regulator/lp87565-regulator.c b/drivers/regulator/lp87565-regulator.c
index cfdbe294fb6a..1259b5d20153 100644
--- a/drivers/regulator/lp87565-regulator.c
+++ b/drivers/regulator/lp87565-regulator.c
@@ -1,28 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Regulator driver for LP87565 PMIC
*
- * Copyright (C) 2017 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 as published by the
- * Free Software Foundation version 2.
+ * Copyright (C) 2017 Texas Instruments Incorporated - https://www.ti.com/
*/
+#include <linux/bitfield.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/mfd/lp87565.h>
-#define LP87565_REGULATOR(_name, _id, _of, _ops, _n, _vr, _vm, _er, _em, \
- _delay, _lr, _cr) \
+enum LP87565_regulator_id {
+ /* BUCK's */
+ LP87565_BUCK_0,
+ LP87565_BUCK_1,
+ LP87565_BUCK_2,
+ LP87565_BUCK_3,
+ LP87565_BUCK_10,
+ LP87565_BUCK_23,
+ LP87565_BUCK_3210,
+};
+
+#define LP87565_REGULATOR(_name, _id, _of, _ops, _n, _vr, _vm, \
+ _er, _em, _ev, _delay, _lr, _cr) \
[_id] = { \
.desc = { \
.name = _name, \
.supply_name = _of "-in", \
.id = _id, \
- .of_match = of_match_ptr(_of), \
- .regulators_node = of_match_ptr("regulators"),\
+ .of_match = _of, \
+ .regulators_node = "regulators", \
.ops = &_ops, \
.n_voltages = _n, \
.type = REGULATOR_VOLTAGE, \
@@ -31,9 +40,14 @@
.vsel_mask = _vm, \
.enable_reg = _er, \
.enable_mask = _em, \
+ .enable_val = _ev, \
.ramp_delay = _delay, \
.linear_ranges = _lr, \
.n_linear_ranges = ARRAY_SIZE(_lr), \
+ .curr_table = lp87565_buck_uA, \
+ .n_current_limits = ARRAY_SIZE(lp87565_buck_uA),\
+ .csel_reg = (_cr), \
+ .csel_mask = LP87565_BUCK_CTRL_2_ILIM, \
}, \
.ctrl2_reg = _cr, \
}
@@ -45,13 +59,13 @@ struct lp87565_regulator {
static const struct lp87565_regulator regulators[];
-static const struct regulator_linear_range buck0_1_2_3_ranges[] = {
+static const struct linear_range buck0_1_2_3_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0xA, 0x17, 10000),
REGULATOR_LINEAR_RANGE(735000, 0x18, 0x9d, 5000),
REGULATOR_LINEAR_RANGE(1420000, 0x9e, 0xff, 20000),
};
-static unsigned int lp87565_buck_ramp_delay[] = {
+static const unsigned int lp87565_buck_ramp_delay[] = {
30000, 15000, 10000, 7500, 3800, 1900, 940, 470
};
@@ -64,7 +78,6 @@ static int lp87565_buck_set_ramp_delay(struct regulator_dev *rdev,
int ramp_delay)
{
int id = rdev_get_id(rdev);
- struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
unsigned int reg;
int ret;
@@ -85,58 +98,25 @@ static int lp87565_buck_set_ramp_delay(struct regulator_dev *rdev,
else
reg = 0;
- ret = regmap_update_bits(lp87565->regmap, regulators[id].ctrl2_reg,
+ ret = regmap_update_bits(rdev->regmap, regulators[id].ctrl2_reg,
LP87565_BUCK_CTRL_2_SLEW_RATE,
- reg << __ffs(LP87565_BUCK_CTRL_2_SLEW_RATE));
+ FIELD_PREP(LP87565_BUCK_CTRL_2_SLEW_RATE, reg));
if (ret) {
- dev_err(lp87565->dev, "SLEW RATE write failed: %d\n", ret);
+ dev_err(&rdev->dev, "SLEW RATE write failed: %d\n", ret);
return ret;
}
rdev->constraints->ramp_delay = lp87565_buck_ramp_delay[reg];
- return 0;
-}
-
-static int lp87565_buck_set_current_limit(struct regulator_dev *rdev,
- int min_uA, int max_uA)
-{
- int id = rdev_get_id(rdev);
- struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
- int i;
-
- for (i = ARRAY_SIZE(lp87565_buck_uA) - 1; i >= 0; i--) {
- if (lp87565_buck_uA[i] >= min_uA &&
- lp87565_buck_uA[i] <= max_uA)
- return regmap_update_bits(lp87565->regmap,
- regulators[id].ctrl2_reg,
- LP87565_BUCK_CTRL_2_ILIM,
- i << __ffs(LP87565_BUCK_CTRL_2_ILIM));
- }
-
- return -EINVAL;
-}
-
-static int lp87565_buck_get_current_limit(struct regulator_dev *rdev)
-{
- int id = rdev_get_id(rdev);
- struct lp87565 *lp87565 = rdev_get_drvdata(rdev);
- int ret;
- unsigned int val;
+ /* Conservatively give a 15% margin */
+ rdev->constraints->ramp_delay =
+ rdev->constraints->ramp_delay * 85 / 100;
- ret = regmap_read(lp87565->regmap, regulators[id].ctrl2_reg, &val);
- if (ret)
- return ret;
-
- val = (val & LP87565_BUCK_CTRL_2_ILIM) >>
- __ffs(LP87565_BUCK_CTRL_2_ILIM);
-
- return (val < ARRAY_SIZE(lp87565_buck_uA)) ?
- lp87565_buck_uA[val] : -EINVAL;
+ return 0;
}
-/* Operations permitted on BUCK0, BUCK1 */
-static struct regulator_ops lp87565_buck_ops = {
+/* Operations permitted on BUCKs */
+static const struct regulator_ops lp87565_buck_ops = {
.is_enabled = regulator_is_enabled_regmap,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
@@ -146,41 +126,64 @@ static struct regulator_ops lp87565_buck_ops = {
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.set_ramp_delay = lp87565_buck_set_ramp_delay,
- .set_current_limit = lp87565_buck_set_current_limit,
- .get_current_limit = lp87565_buck_get_current_limit,
+ .set_current_limit = regulator_set_current_limit_regmap,
+ .get_current_limit = regulator_get_current_limit_regmap,
};
static const struct lp87565_regulator regulators[] = {
LP87565_REGULATOR("BUCK0", LP87565_BUCK_0, "buck0", lp87565_buck_ops,
256, LP87565_REG_BUCK0_VOUT, LP87565_BUCK_VSET,
LP87565_REG_BUCK0_CTRL_1,
- LP87565_BUCK_CTRL_1_EN, 3800,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
+ LP87565_BUCK_CTRL_1_EN, 3230,
buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2),
LP87565_REGULATOR("BUCK1", LP87565_BUCK_1, "buck1", lp87565_buck_ops,
256, LP87565_REG_BUCK1_VOUT, LP87565_BUCK_VSET,
LP87565_REG_BUCK1_CTRL_1,
- LP87565_BUCK_CTRL_1_EN, 3800,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
+ LP87565_BUCK_CTRL_1_EN, 3230,
buck0_1_2_3_ranges, LP87565_REG_BUCK1_CTRL_2),
LP87565_REGULATOR("BUCK2", LP87565_BUCK_2, "buck2", lp87565_buck_ops,
256, LP87565_REG_BUCK2_VOUT, LP87565_BUCK_VSET,
LP87565_REG_BUCK2_CTRL_1,
- LP87565_BUCK_CTRL_1_EN, 3800,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
+ LP87565_BUCK_CTRL_1_EN, 3230,
buck0_1_2_3_ranges, LP87565_REG_BUCK2_CTRL_2),
LP87565_REGULATOR("BUCK3", LP87565_BUCK_3, "buck3", lp87565_buck_ops,
256, LP87565_REG_BUCK3_VOUT, LP87565_BUCK_VSET,
LP87565_REG_BUCK3_CTRL_1,
- LP87565_BUCK_CTRL_1_EN, 3800,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
+ LP87565_BUCK_CTRL_1_EN, 3230,
buck0_1_2_3_ranges, LP87565_REG_BUCK3_CTRL_2),
LP87565_REGULATOR("BUCK10", LP87565_BUCK_10, "buck10", lp87565_buck_ops,
256, LP87565_REG_BUCK0_VOUT, LP87565_BUCK_VSET,
LP87565_REG_BUCK0_CTRL_1,
- LP87565_BUCK_CTRL_1_EN, 3800,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_EN_PIN_CTRL |
+ LP87565_BUCK_CTRL_1_FPWM_MP_0_2,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_FPWM_MP_0_2, 3230,
buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2),
LP87565_REGULATOR("BUCK23", LP87565_BUCK_23, "buck23", lp87565_buck_ops,
256, LP87565_REG_BUCK2_VOUT, LP87565_BUCK_VSET,
LP87565_REG_BUCK2_CTRL_1,
- LP87565_BUCK_CTRL_1_EN, 3800,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_EN_PIN_CTRL,
+ LP87565_BUCK_CTRL_1_EN, 3230,
buck0_1_2_3_ranges, LP87565_REG_BUCK2_CTRL_2),
+ LP87565_REGULATOR("BUCK3210", LP87565_BUCK_3210, "buck3210",
+ lp87565_buck_ops, 256, LP87565_REG_BUCK0_VOUT,
+ LP87565_BUCK_VSET, LP87565_REG_BUCK0_CTRL_1,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_EN_PIN_CTRL |
+ LP87565_BUCK_CTRL_1_FPWM_MP_0_2,
+ LP87565_BUCK_CTRL_1_EN |
+ LP87565_BUCK_CTRL_1_FPWM_MP_0_2, 3230,
+ buck0_1_2_3_ranges, LP87565_REG_BUCK0_CTRL_2),
};
static int lp87565_regulator_probe(struct platform_device *pdev)
@@ -188,7 +191,7 @@ static int lp87565_regulator_probe(struct platform_device *pdev)
struct lp87565 *lp87565 = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = { };
struct regulator_dev *rdev;
- int i, min_idx = LP87565_BUCK_1, max_idx = LP87565_BUCK_3;
+ int i, min_idx, max_idx;
platform_set_drvdata(pdev, lp87565);
@@ -197,9 +200,19 @@ static int lp87565_regulator_probe(struct platform_device *pdev)
config.driver_data = lp87565;
config.regmap = lp87565->regmap;
- if (lp87565->dev_type == LP87565_DEVICE_TYPE_LP87565_Q1) {
+ switch (lp87565->dev_type) {
+ case LP87565_DEVICE_TYPE_LP87565_Q1:
min_idx = LP87565_BUCK_10;
max_idx = LP87565_BUCK_23;
+ break;
+ case LP87565_DEVICE_TYPE_LP87561_Q1:
+ min_idx = LP87565_BUCK_3210;
+ max_idx = LP87565_BUCK_3210;
+ break;
+ default:
+ min_idx = LP87565_BUCK_0;
+ max_idx = LP87565_BUCK_3;
+ break;
}
for (i = min_idx; i <= max_idx; i++) {
@@ -225,6 +238,7 @@ MODULE_DEVICE_TABLE(platform, lp87565_regulator_id_table);
static struct platform_driver lp87565_regulator_driver = {
.driver = {
.name = "lp87565-pmic",
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = lp87565_regulator_probe,
.id_table = lp87565_regulator_id_table,
generated by cgit (git 2.34.1) at 2025-12-26 02:09:20 +0000