mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 05:02:12 +00:00
e347823162
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-for-MFD-by: Lee Jones <lee@kernel.org> Acked-for-Backlight-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221118224540.619276-559-uwe@kleine-koenig.org Signed-off-by: Mark Brown <broonie@kernel.org>
159 lines
3.9 KiB
C
159 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
// Copyright Axis Communications AB
|
|
|
|
#include <linux/err.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of_device.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/regulator/of_regulator.h>
|
|
#include <linux/regulator/machine.h>
|
|
#include <linux/regulator/driver.h>
|
|
|
|
#include <dt-bindings/regulator/ti,tps62864.h>
|
|
|
|
#define TPS6286X_VOUT1 0x01
|
|
#define TPS6286X_VOUT1_VO1_SET GENMASK(7, 0)
|
|
|
|
#define TPS6286X_CONTROL 0x03
|
|
#define TPS6286X_CONTROL_FPWM BIT(4)
|
|
#define TPS6286X_CONTROL_SWEN BIT(5)
|
|
|
|
#define TPS6286X_MIN_MV 400
|
|
#define TPS6286X_MAX_MV 1675
|
|
#define TPS6286X_STEP_MV 5
|
|
|
|
static const struct regmap_config tps6286x_regmap_config = {
|
|
.reg_bits = 8,
|
|
.val_bits = 8,
|
|
};
|
|
|
|
static int tps6286x_set_mode(struct regulator_dev *rdev, unsigned int mode)
|
|
{
|
|
unsigned int val;
|
|
|
|
switch (mode) {
|
|
case REGULATOR_MODE_NORMAL:
|
|
val = 0;
|
|
break;
|
|
case REGULATOR_MODE_FAST:
|
|
val = TPS6286X_CONTROL_FPWM;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return regmap_update_bits(rdev->regmap, TPS6286X_CONTROL,
|
|
TPS6286X_CONTROL_FPWM, val);
|
|
}
|
|
|
|
static unsigned int tps6286x_get_mode(struct regulator_dev *rdev)
|
|
{
|
|
unsigned int val;
|
|
int ret;
|
|
|
|
ret = regmap_read(rdev->regmap, TPS6286X_CONTROL, &val);
|
|
if (ret < 0)
|
|
return 0;
|
|
|
|
return (val & TPS6286X_CONTROL_FPWM) ? REGULATOR_MODE_FAST : REGULATOR_MODE_NORMAL;
|
|
}
|
|
|
|
static const struct regulator_ops tps6286x_regulator_ops = {
|
|
.enable = regulator_enable_regmap,
|
|
.disable = regulator_disable_regmap,
|
|
.set_mode = tps6286x_set_mode,
|
|
.get_mode = tps6286x_get_mode,
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.list_voltage = regulator_list_voltage_linear,
|
|
};
|
|
|
|
static unsigned int tps6286x_of_map_mode(unsigned int mode)
|
|
{
|
|
switch (mode) {
|
|
case TPS62864_MODE_NORMAL:
|
|
return REGULATOR_MODE_NORMAL;
|
|
case TPS62864_MODE_FPWM:
|
|
return REGULATOR_MODE_FAST;
|
|
default:
|
|
return REGULATOR_MODE_INVALID;
|
|
}
|
|
}
|
|
|
|
static const struct regulator_desc tps6286x_reg = {
|
|
.name = "tps6286x",
|
|
.of_match = of_match_ptr("SW"),
|
|
.owner = THIS_MODULE,
|
|
.ops = &tps6286x_regulator_ops,
|
|
.of_map_mode = tps6286x_of_map_mode,
|
|
.regulators_node = of_match_ptr("regulators"),
|
|
.type = REGULATOR_VOLTAGE,
|
|
.n_voltages = ((TPS6286X_MAX_MV - TPS6286X_MIN_MV) / TPS6286X_STEP_MV) + 1,
|
|
.min_uV = TPS6286X_MIN_MV * 1000,
|
|
.uV_step = TPS6286X_STEP_MV * 1000,
|
|
.vsel_reg = TPS6286X_VOUT1,
|
|
.vsel_mask = TPS6286X_VOUT1_VO1_SET,
|
|
.enable_reg = TPS6286X_CONTROL,
|
|
.enable_mask = TPS6286X_CONTROL_SWEN,
|
|
.ramp_delay = 1000,
|
|
/* tDelay + tRamp, rounded up */
|
|
.enable_time = 3000,
|
|
};
|
|
|
|
static const struct of_device_id tps6286x_dt_ids[] = {
|
|
{ .compatible = "ti,tps62864", },
|
|
{ .compatible = "ti,tps62866", },
|
|
{ .compatible = "ti,tps62868", },
|
|
{ .compatible = "ti,tps62869", },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, tps6286x_dt_ids);
|
|
|
|
static int tps6286x_i2c_probe(struct i2c_client *i2c)
|
|
{
|
|
struct device *dev = &i2c->dev;
|
|
struct regulator_config config = {};
|
|
struct regulator_dev *rdev;
|
|
struct regmap *regmap;
|
|
|
|
regmap = devm_regmap_init_i2c(i2c, &tps6286x_regmap_config);
|
|
if (IS_ERR(regmap))
|
|
return PTR_ERR(regmap);
|
|
|
|
config.dev = &i2c->dev;
|
|
config.of_node = dev->of_node;
|
|
config.regmap = regmap;
|
|
|
|
rdev = devm_regulator_register(&i2c->dev, &tps6286x_reg, &config);
|
|
if (IS_ERR(rdev)) {
|
|
dev_err(&i2c->dev, "Failed to register tps6286x regulator\n");
|
|
return PTR_ERR(rdev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct i2c_device_id tps6286x_i2c_id[] = {
|
|
{ "tps62864", 0 },
|
|
{ "tps62866", 0 },
|
|
{ "tps62868", 0 },
|
|
{ "tps62869", 0 },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, tps6286x_i2c_id);
|
|
|
|
static struct i2c_driver tps6286x_regulator_driver = {
|
|
.driver = {
|
|
.name = "tps6286x",
|
|
.of_match_table = of_match_ptr(tps6286x_dt_ids),
|
|
},
|
|
.probe_new = tps6286x_i2c_probe,
|
|
.id_table = tps6286x_i2c_id,
|
|
};
|
|
|
|
module_i2c_driver(tps6286x_regulator_driver);
|
|
|
|
MODULE_LICENSE("GPL v2");
|