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Commit 7bd39354 authored by James Ban's avatar James Ban Committed by Mark Brown
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regulator: da9211: support da9215 

This is a patch for supporting da9215 buck converter.
Signed-off-by: default avatarJames Ban <james.ban.opensource@diasemi.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d770e558
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Showing with 81 additions and 34 deletions
Documentation/devicetree/bindings/regulator/da9211.txt
View file @ 7bd39354
* Dialog Semiconductor DA9211/DA9213 Voltage Regulator * Dialog Semiconductor DA9211/DA9213/DA9215 Voltage Regulator
Required properties: Required properties:
- compatible: "dlg,da9211" or "dlg,da9213". - compatible: "dlg,da9211" or "dlg,da9213" or "dlg,da9215"
- reg: I2C slave address, usually 0x68. - reg: I2C slave address, usually 0x68.
- interrupts: the interrupt outputs of the controller - interrupts: the interrupt outputs of the controller
- regulators: A node that houses a sub-node for each regulator within the - regulators: A node that houses a sub-node for each regulator within the
...@@ -66,3 +66,31 @@ Example 2) DA9213 ...@@ -66,3 +66,31 @@ Example 2) DA9213
}; };
}; };
}; };
Example 3) DA9215
pmic: da9215@68 {
compatible = "dlg,da9215";
reg = <0x68>;
interrupts = <3 27>;
regulators {
BUCKA {
regulator-name = "VBUCKA";
regulator-min-microvolt = < 300000>;
regulator-max-microvolt = <1570000>;
regulator-min-microamp = <4000000>;
regulator-max-microamp = <7000000>;
enable-gpios = <&gpio 27 0>;
};
BUCKB {
regulator-name = "VBUCKB";
regulator-min-microvolt = < 300000>;
regulator-max-microvolt = <1570000>;
regulator-min-microamp = <4000000>;
regulator-max-microamp = <7000000>;
enable-gpios = <&gpio 17 0>;
};
};
};
drivers/regulator/Kconfig
View file @ 7bd39354
...@@ -209,13 +209,13 @@ config REGULATOR_DA9210 ...@@ -209,13 +209,13 @@ config REGULATOR_DA9210
interface. interface.
config REGULATOR_DA9211 config REGULATOR_DA9211
tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214 regulator" tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214/DA9215 regulator"
depends on I2C depends on I2C
select REGMAP_I2C select REGMAP_I2C
help help
Say y here to support for the Dialog Semiconductor DA9211/DA9212 Say y here to support for the Dialog Semiconductor DA9211/DA9212
/DA9213/DA9214. /DA9213/DA9214/DA9215.
The DA9211/DA9212/DA9213/DA9214 is a multi-phase synchronous The DA9211/DA9212/DA9213/DA9214/DA9215 is a multi-phase synchronous
step down converter 12A or 16A DC-DC Buck controlled through an I2C step down converter 12A or 16A DC-DC Buck controlled through an I2C
interface. interface.
......
drivers/regulator/da9211-regulator.c
View file @ 7bd39354
/* /*
* da9211-regulator.c - Regulator device driver for DA9211/DA9213 * da9211-regulator.c - Regulator device driver for DA9211/DA9213/DA9215
* Copyright (C) 2014 Dialog Semiconductor Ltd. * Copyright (C) 2015 Dialog Semiconductor Ltd.
* *
* This library is free software; you can redistribute it and/or * This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public * modify it under the terms of the GNU Library General Public
...@@ -32,6 +32,7 @@ ...@@ -32,6 +32,7 @@
/* DEVICE IDs */ /* DEVICE IDs */
#define DA9211_DEVICE_ID 0x22 #define DA9211_DEVICE_ID 0x22
#define DA9213_DEVICE_ID 0x23 #define DA9213_DEVICE_ID 0x23
#define DA9215_DEVICE_ID 0x24
#define DA9211_BUCK_MODE_SLEEP 1 #define DA9211_BUCK_MODE_SLEEP 1
#define DA9211_BUCK_MODE_SYNC 2 #define DA9211_BUCK_MODE_SYNC 2
...@@ -90,6 +91,13 @@ static const int da9213_current_limits[] = { ...@@ -90,6 +91,13 @@ static const int da9213_current_limits[] = {
3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000, 3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000,
4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000 4600000, 4800000, 5000000, 5200000, 5400000, 5600000, 5800000, 6000000
}; };
/* Current limits for DA9215 buck (uA) indices
* corresponds with register values
*/
static const int da9215_current_limits[] = {
4000000, 4200000, 4400000, 4600000, 4800000, 5000000, 5200000, 5400000,
5600000, 5800000, 6000000, 6200000, 6400000, 6600000, 6800000, 7000000
};
static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev) static unsigned int da9211_buck_get_mode(struct regulator_dev *rdev)
{ {
...@@ -157,6 +165,10 @@ static int da9211_set_current_limit(struct regulator_dev *rdev, int min, ...@@ -157,6 +165,10 @@ static int da9211_set_current_limit(struct regulator_dev *rdev, int min,
current_limits = da9213_current_limits; current_limits = da9213_current_limits;
max_size = ARRAY_SIZE(da9213_current_limits)-1; max_size = ARRAY_SIZE(da9213_current_limits)-1;
break; break;
case DA9215:
current_limits = da9215_current_limits;
max_size = ARRAY_SIZE(da9215_current_limits)-1;
break;
default: default:
return -EINVAL; return -EINVAL;
} }
...@@ -189,6 +201,9 @@ static int da9211_get_current_limit(struct regulator_dev *rdev) ...@@ -189,6 +201,9 @@ static int da9211_get_current_limit(struct regulator_dev *rdev)
case DA9213: case DA9213:
current_limits = da9213_current_limits; current_limits = da9213_current_limits;
break; break;
case DA9215:
current_limits = da9215_current_limits;
break;
default: default:
return -EINVAL; return -EINVAL;
} }
...@@ -350,13 +365,11 @@ static int da9211_regulator_init(struct da9211 *chip) ...@@ -350,13 +365,11 @@ static int da9211_regulator_init(struct da9211 *chip)
/* If configuration for 1/2 bucks is different between platform data /* If configuration for 1/2 bucks is different between platform data
* and the register, driver should exit. * and the register, driver should exit.
*/ */
if ((chip->pdata->num_buck == 2 && data == 0x40) if (chip->pdata->num_buck == 1 && data == 0x00)
|| (chip->pdata->num_buck == 1 && data == 0x00)) { chip->num_regulator = 1;
if (data == 0) else if (chip->pdata->num_buck == 2 && data != 0x00)
chip->num_regulator = 1; chip->num_regulator = 2;
else else {
chip->num_regulator = 2;
} else {
dev_err(chip->dev, "Configuration is mismatched\n"); dev_err(chip->dev, "Configuration is mismatched\n");
return -EINVAL; return -EINVAL;
} }
...@@ -438,6 +451,9 @@ static int da9211_i2c_probe(struct i2c_client *i2c, ...@@ -438,6 +451,9 @@ static int da9211_i2c_probe(struct i2c_client *i2c,
case DA9213_DEVICE_ID: case DA9213_DEVICE_ID:
chip->chip_id = DA9213; chip->chip_id = DA9213;
break; break;
case DA9215_DEVICE_ID:
chip->chip_id = DA9215;
break;
default: default:
dev_err(chip->dev, "Unsupported device id = 0x%x.\n", data); dev_err(chip->dev, "Unsupported device id = 0x%x.\n", data);
return -ENODEV; return -ENODEV;
...@@ -478,6 +494,7 @@ static int da9211_i2c_probe(struct i2c_client *i2c, ...@@ -478,6 +494,7 @@ static int da9211_i2c_probe(struct i2c_client *i2c,
static const struct i2c_device_id da9211_i2c_id[] = { static const struct i2c_device_id da9211_i2c_id[] = {
{"da9211", DA9211}, {"da9211", DA9211},
{"da9213", DA9213}, {"da9213", DA9213},
{"da9215", DA9215},
{}, {},
}; };
MODULE_DEVICE_TABLE(i2c, da9211_i2c_id); MODULE_DEVICE_TABLE(i2c, da9211_i2c_id);
...@@ -486,6 +503,7 @@ MODULE_DEVICE_TABLE(i2c, da9211_i2c_id); ...@@ -486,6 +503,7 @@ MODULE_DEVICE_TABLE(i2c, da9211_i2c_id);
static const struct of_device_id da9211_dt_ids[] = { static const struct of_device_id da9211_dt_ids[] = {
{ .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] }, { .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] },
{ .compatible = "dlg,da9213", .data = &da9211_i2c_id[1] }, { .compatible = "dlg,da9213", .data = &da9211_i2c_id[1] },
{ .compatible = "dlg,da9215", .data = &da9211_i2c_id[2] },
{}, {},
}; };
MODULE_DEVICE_TABLE(of, da9211_dt_ids); MODULE_DEVICE_TABLE(of, da9211_dt_ids);
...@@ -504,5 +522,5 @@ static struct i2c_driver da9211_regulator_driver = { ...@@ -504,5 +522,5 @@ static struct i2c_driver da9211_regulator_driver = {
module_i2c_driver(da9211_regulator_driver); module_i2c_driver(da9211_regulator_driver);
MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>"); MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211/DA9213"); MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211/DA9213/DA9215");
MODULE_LICENSE("GPL v2"); MODULE_LICENSE("GPL");
drivers/regulator/da9211-regulator.h
View file @ 7bd39354
/* /*
* da9211-regulator.h - Regulator definitions for DA9211/DA9213 * da9211-regulator.h - Regulator definitions for DA9211/DA9213/DA9215
* Copyright (C) 2014 Dialog Semiconductor Ltd. * Copyright (C) 2015 Dialog Semiconductor Ltd.
* *
* This library is free software; you can redistribute it and/or * This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public * modify it under the terms of the GNU General Public License
* License as published by the Free Software Foundation; either * as published by the Free Software Foundation; either version 2
* version 2 of the License, or (at your option) any later version. * of the License, or (at your option) any later version.
* *
* This library is distributed in the hope that it will be useful, * This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of * but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Library General Public License for more details. * GNU General Public License for more details.
*/ */
#ifndef __DA9211_REGISTERS_H__ #ifndef __DA9211_REGISTERS_H__
......
include/linux/regulator/da9211.h
View file @ 7bd39354
/* /*
* da9211.h - Regulator device driver for DA9211/DA9213 * da9211.h - Regulator device driver for DA9211/DA9213/DA9215
* Copyright (C) 2014 Dialog Semiconductor Ltd. * Copyright (C) 2015 Dialog Semiconductor Ltd.
* *
* This library is free software; you can redistribute it and/or * This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public * modify it under the terms of the GNU General Public License
* License as published by the Free Software Foundation; either * as published by the Free Software Foundation; either version 2
* version 2 of the License, or (at your option) any later version. * of the License, or (at your option) any later version.
* *
* This library is distributed in the hope that it will be useful, * This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of * but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Library General Public License for more details. * GNU General Public License for more details.
*/ */
#ifndef __LINUX_REGULATOR_DA9211_H #ifndef __LINUX_REGULATOR_DA9211_H
...@@ -23,6 +23,7 @@ ...@@ -23,6 +23,7 @@
enum da9211_chip_id { enum da9211_chip_id {
DA9211, DA9211,
DA9213, DA9213,
DA9215,
}; };
struct da9211_pdata { struct da9211_pdata {
......
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