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Date: Tue, 30 Jun 2015 13:39:39 +0900
From: James Ban <james.ban.opensource@...semi.com>
To: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Support Opensource <support.opensource@...semi.com>,
LKML <linux-kernel@...r.kernel.org>
CC: David Dajun Chen <david.chen@...semi.com>
Subject: [PATCH V1] regulator: da9211: support da9215
This is a patch for supporting da9215 buck converter.
Signed-off-by: James Ban <james.ban.opensource@...semi.com>
---
This patch is relative to linux-next repository tag next-20150625.
.../devicetree/bindings/regulator/da9211.txt | 32 +++++++++++++++-
drivers/regulator/Kconfig | 6 +--
drivers/regulator/da9211-regulator.c | 40 ++++++++++++++------
drivers/regulator/da9211-regulator.h | 18 ++++-----
include/linux/regulator/da9211.h | 19 +++++-----
5 files changed, 81 insertions(+), 34 deletions(-)
diff --git a/Documentation/devicetree/bindings/regulator/da9211.txt b/Documentation/devicetree/bindings/regulator/da9211.txt
index eb61890..c620493 100644
--- a/Documentation/devicetree/bindings/regulator/da9211.txt
+++ b/Documentation/devicetree/bindings/regulator/da9211.txt
@@ -1,7 +1,7 @@
-* Dialog Semiconductor DA9211/DA9213 Voltage Regulator
+* Dialog Semiconductor DA9211/DA9213/DA9215 Voltage Regulator
Required properties:
-- compatible: "dlg,da9211" or "dlg,da9213".
+- compatible: "dlg,da9211" or "dlg,da9213" or "dlg,da9215"
- reg: I2C slave address, usually 0x68.
- interrupts: the interrupt outputs of the controller
- regulators: A node that houses a sub-node for each regulator within the
@@ -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>;
+ };
+ };
+ };
+
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index bef3bde..23496da 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -209,13 +209,13 @@ config REGULATOR_DA9210
interface.
config REGULATOR_DA9211
- tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214 regulator"
+ tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214/DA9215 regulator"
depends on I2C
select REGMAP_I2C
help
Say y here to support for the Dialog Semiconductor DA9211/DA9212
- /DA9213/DA9214.
- The DA9211/DA9212/DA9213/DA9214 is a multi-phase synchronous
+ /DA9213/DA9214/DA9215.
+ The DA9211/DA9212/DA9213/DA9214/DA9215 is a multi-phase synchronous
step down converter 12A or 16A DC-DC Buck controlled through an I2C
interface.
diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c
index df79e4b..0858100 100644
--- a/drivers/regulator/da9211-regulator.c
+++ b/drivers/regulator/da9211-regulator.c
@@ -1,6 +1,6 @@
/*
- * da9211-regulator.c - Regulator device driver for DA9211/DA9213
- * Copyright (C) 2014 Dialog Semiconductor Ltd.
+ * da9211-regulator.c - Regulator device driver for DA9211/DA9213/DA9215
+ * Copyright (C) 2015 Dialog Semiconductor Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@@ -32,6 +32,7 @@
/* DEVICE IDs */
#define DA9211_DEVICE_ID 0x22
#define DA9213_DEVICE_ID 0x23
+#define DA9215_DEVICE_ID 0x24
#define DA9211_BUCK_MODE_SLEEP 1
#define DA9211_BUCK_MODE_SYNC 2
@@ -90,6 +91,13 @@ static const int da9213_current_limits[] = {
3000000, 3200000, 3400000, 3600000, 3800000, 4000000, 4200000, 4400000,
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)
{
@@ -157,6 +165,10 @@ static int da9211_set_current_limit(struct regulator_dev *rdev, int min,
current_limits = da9213_current_limits;
max_size = ARRAY_SIZE(da9213_current_limits)-1;
break;
+ case DA9215:
+ current_limits = da9215_current_limits;
+ max_size = ARRAY_SIZE(da9215_current_limits)-1;
+ break;
default:
return -EINVAL;
}
@@ -189,6 +201,9 @@ static int da9211_get_current_limit(struct regulator_dev *rdev)
case DA9213:
current_limits = da9213_current_limits;
break;
+ case DA9215:
+ current_limits = da9215_current_limits;
+ break;
default:
return -EINVAL;
}
@@ -350,13 +365,11 @@ static int da9211_regulator_init(struct da9211 *chip)
/* If configuration for 1/2 bucks is different between platform data
* and the register, driver should exit.
*/
- if ((chip->pdata->num_buck == 2 && data == 0x40)
- || (chip->pdata->num_buck == 1 && data == 0x00)) {
- if (data == 0)
- chip->num_regulator = 1;
- else
- chip->num_regulator = 2;
- } else {
+ if (chip->pdata->num_buck == 1 && data == 0x00)
+ chip->num_regulator = 1;
+ else if (chip->pdata->num_buck == 2 && data != 0x00)
+ chip->num_regulator = 2;
+ else {
dev_err(chip->dev, "Configuration is mismatched\n");
return -EINVAL;
}
@@ -438,6 +451,9 @@ static int da9211_i2c_probe(struct i2c_client *i2c,
case DA9213_DEVICE_ID:
chip->chip_id = DA9213;
break;
+ case DA9215_DEVICE_ID:
+ chip->chip_id = DA9215;
+ break;
default:
dev_err(chip->dev, "Unsupported device id = 0x%x.\n", data);
return -ENODEV;
@@ -478,6 +494,7 @@ static int da9211_i2c_probe(struct i2c_client *i2c,
static const struct i2c_device_id da9211_i2c_id[] = {
{"da9211", DA9211},
{"da9213", DA9213},
+ {"da9215", DA9215},
{},
};
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[] = {
{ .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] },
{ .compatible = "dlg,da9213", .data = &da9211_i2c_id[1] },
+ { .compatible = "dlg,da9215", .data = &da9211_i2c_id[2] },
{},
};
MODULE_DEVICE_TABLE(of, da9211_dt_ids);
@@ -504,5 +522,5 @@ static struct i2c_driver da9211_regulator_driver = {
module_i2c_driver(da9211_regulator_driver);
MODULE_AUTHOR("James Ban <James.Ban.opensource@...semi.com>");
-MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211/DA9213");
-MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Regulator device driver for Dialog DA9211/DA9213/DA9215");
+MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/da9211-regulator.h b/drivers/regulator/da9211-regulator.h
index 93fa9df..d6ad96f 100644
--- a/drivers/regulator/da9211-regulator.h
+++ b/drivers/regulator/da9211-regulator.h
@@ -1,16 +1,16 @@
/*
- * da9211-regulator.h - Regulator definitions for DA9211/DA9213
- * Copyright (C) 2014 Dialog Semiconductor Ltd.
+ * da9211-regulator.h - Regulator definitions for DA9211/DA9213/DA9215
+ * Copyright (C) 2015 Dialog Semiconductor Ltd.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library 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 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 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
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*/
#ifndef __DA9211_REGISTERS_H__
diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h
index 5dd65ac..a43a5ca 100644
--- a/include/linux/regulator/da9211.h
+++ b/include/linux/regulator/da9211.h
@@ -1,16 +1,16 @@
/*
- * da9211.h - Regulator device driver for DA9211/DA9213
- * Copyright (C) 2014 Dialog Semiconductor Ltd.
+ * da9211.h - Regulator device driver for DA9211/DA9213/DA9215
+ * Copyright (C) 2015 Dialog Semiconductor Ltd.
*
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library 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 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 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
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*/
#ifndef __LINUX_REGULATOR_DA9211_H
@@ -23,6 +23,7 @@
enum da9211_chip_id {
DA9211,
DA9213,
+ DA9215,
};
struct da9211_pdata {
--
end-of-patch for regulator: da9211: support da9215 V1
--
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