* regulator: tps65020 support
[not found] <CAM8FrKJ2LAhjvDO9jMZN-D1Sfx=PUuVjMZXBE-E581qdJGxvug@mail.gmail.com>
@ 2011-07-25 22:03 ` Marcus Folkesson
2011-07-26 8:50 ` Mark Brown
0 siblings, 1 reply; 2+ messages in thread
From: Marcus Folkesson @ 2011-07-25 22:03 UTC (permalink / raw)
To: lrg, broonie; +Cc: linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1030 bytes --]
Hi,
This patch gives support for the tps65020 voltage regulator from Texas
Instruments.
The support is added to the existing tps65023 regulator.
It also fixes two bugs:
* The original driver does not allow core voltage adjustments by the
I2C bus. (clearing CORE ADJ bit in CTRL2 register).
* The original driver does not either telling the chip that the
DEFCORE register i changed by setting the GO bit in CTRL2.
I have read SubmittingPatches and think all should be okay (this is my
first submit :-) ), but I still have two questions:
* The patch is renaming tps65023-regulator.c to tps6502x-regulator.c
(and edits the corresponding Kconfig/Makefile) since it now handles
both tps65020 and tps65023. Is this allowed or is the Kconfig and
Makefile files holy or something?
* checkpatch.pl is showing two warnings about lines over 80
characters, but this is not really truth. The lines is splitted up so
it should not complain. Please take a look.
Med vänliga hälsningar / Best regards
Marcus Folkesson
[-- Attachment #2: 0001-regulator-TPS65020-support.patch --]
[-- Type: text/x-patch, Size: 37646 bytes --]
From 66cb88e3bf023b7a67b910ab824f2d2ba7e47358 Mon Sep 17 00:00:00 2001
From: Marcus Folkesson <marcus.folkesson@combitech.se>
Date: Mon, 25 Jul 2011 23:11:30 +0200
Subject: [PATCH] regulator: TPS65020 support
Tested with a PXA270-based custom board.
The driver is based on tps65023-regulator.c.
Also, two bugs is fixed that were in the original driver:
* Setting the CORE ADJ allowed bit in CTRL2
* Setting the GO bit in CTRL2 for updating the core voltage
Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
---
drivers/regulator/Kconfig | 6 +-
drivers/regulator/Makefile | 2 +-
drivers/regulator/tps65023-regulator.c | 633 ---------------------------
drivers/regulator/tps6502x-regulator.c | 751 ++++++++++++++++++++++++++++++++
4 files changed, 755 insertions(+), 637 deletions(-)
delete mode 100644 drivers/regulator/tps65023-regulator.c
create mode 100644 drivers/regulator/tps6502x-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index d7ed20f..b25f5c7 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -232,11 +232,11 @@ config REGULATOR_TPS6105X
It is a single boost converter primarily for white LEDs and
audio amplifiers.
-config REGULATOR_TPS65023
- tristate "TI TPS65023 Power regulators"
+config REGULATOR_TPS6502X
+ tristate "TI TPS6502X Power regulators"
depends on I2C
help
- This driver supports TPS65023 voltage regulator chips. TPS65023 provides
+ This driver supports TPS65020 and TPS65023 voltage regulator chips. TPS6502X provides
three step-down converters and two general-purpose LDO voltage regulators.
It supports TI's software based Class-2 SmartReflex implementation.
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 3932d2e..1af7363 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -35,7 +35,7 @@ obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o
obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o
obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o
obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o
-obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
+obj-$(CONFIG_REGULATOR_TPS6502X) += tps6502x-regulator.o
obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
deleted file mode 100644
index fbddc15..0000000
--- a/drivers/regulator/tps65023-regulator.c
+++ /dev/null
@@ -1,633 +0,0 @@
-/*
- * tps65023-regulator.c
- *
- * Supports TPS65023 Regulator
- *
- * Copyright (C) 2009 Texas Instrument 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.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
- * whether express or implied; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/err.h>
-#include <linux/platform_device.h>
-#include <linux/regulator/driver.h>
-#include <linux/regulator/machine.h>
-#include <linux/i2c.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-
-/* Register definitions */
-#define TPS65023_REG_VERSION 0
-#define TPS65023_REG_PGOODZ 1
-#define TPS65023_REG_MASK 2
-#define TPS65023_REG_REG_CTRL 3
-#define TPS65023_REG_CON_CTRL 4
-#define TPS65023_REG_CON_CTRL2 5
-#define TPS65023_REG_DEF_CORE 6
-#define TPS65023_REG_DEFSLEW 7
-#define TPS65023_REG_LDO_CTRL 8
-
-/* PGOODZ bitfields */
-#define TPS65023_PGOODZ_PWRFAILZ BIT(7)
-#define TPS65023_PGOODZ_LOWBATTZ BIT(6)
-#define TPS65023_PGOODZ_VDCDC1 BIT(5)
-#define TPS65023_PGOODZ_VDCDC2 BIT(4)
-#define TPS65023_PGOODZ_VDCDC3 BIT(3)
-#define TPS65023_PGOODZ_LDO2 BIT(2)
-#define TPS65023_PGOODZ_LDO1 BIT(1)
-
-/* MASK bitfields */
-#define TPS65023_MASK_PWRFAILZ BIT(7)
-#define TPS65023_MASK_LOWBATTZ BIT(6)
-#define TPS65023_MASK_VDCDC1 BIT(5)
-#define TPS65023_MASK_VDCDC2 BIT(4)
-#define TPS65023_MASK_VDCDC3 BIT(3)
-#define TPS65023_MASK_LDO2 BIT(2)
-#define TPS65023_MASK_LDO1 BIT(1)
-
-/* REG_CTRL bitfields */
-#define TPS65023_REG_CTRL_VDCDC1_EN BIT(5)
-#define TPS65023_REG_CTRL_VDCDC2_EN BIT(4)
-#define TPS65023_REG_CTRL_VDCDC3_EN BIT(3)
-#define TPS65023_REG_CTRL_LDO2_EN BIT(2)
-#define TPS65023_REG_CTRL_LDO1_EN BIT(1)
-
-/* LDO_CTRL bitfields */
-#define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4)
-#define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4))
-
-/* Number of step-down converters available */
-#define TPS65023_NUM_DCDC 3
-/* Number of LDO voltage regulators available */
-#define TPS65023_NUM_LDO 2
-/* Number of total regulators available */
-#define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO)
-
-/* DCDCs */
-#define TPS65023_DCDC_1 0
-#define TPS65023_DCDC_2 1
-#define TPS65023_DCDC_3 2
-/* LDOs */
-#define TPS65023_LDO_1 3
-#define TPS65023_LDO_2 4
-
-#define TPS65023_MAX_REG_ID TPS65023_LDO_2
-
-/* Supported voltage values for regulators */
-static const u16 VDCDC1_VSEL_table[] = {
- 800, 825, 850, 875,
- 900, 925, 950, 975,
- 1000, 1025, 1050, 1075,
- 1100, 1125, 1150, 1175,
- 1200, 1225, 1250, 1275,
- 1300, 1325, 1350, 1375,
- 1400, 1425, 1450, 1475,
- 1500, 1525, 1550, 1600,
-};
-
-static const u16 LDO1_VSEL_table[] = {
- 1000, 1100, 1300, 1800,
- 2200, 2600, 2800, 3150,
-};
-
-static const u16 LDO2_VSEL_table[] = {
- 1050, 1200, 1300, 1800,
- 2500, 2800, 3000, 3300,
-};
-
-static unsigned int num_voltages[] = {ARRAY_SIZE(VDCDC1_VSEL_table),
- 0, 0, ARRAY_SIZE(LDO1_VSEL_table),
- ARRAY_SIZE(LDO2_VSEL_table)};
-
-/* Regulator specific details */
-struct tps_info {
- const char *name;
- unsigned min_uV;
- unsigned max_uV;
- bool fixed;
- u8 table_len;
- const u16 *table;
-};
-
-/* PMIC details */
-struct tps_pmic {
- struct regulator_desc desc[TPS65023_NUM_REGULATOR];
- struct i2c_client *client;
- struct regulator_dev *rdev[TPS65023_NUM_REGULATOR];
- const struct tps_info *info[TPS65023_NUM_REGULATOR];
- struct mutex io_lock;
-};
-
-static inline int tps_65023_read(struct tps_pmic *tps, u8 reg)
-{
- return i2c_smbus_read_byte_data(tps->client, reg);
-}
-
-static inline int tps_65023_write(struct tps_pmic *tps, u8 reg, u8 val)
-{
- return i2c_smbus_write_byte_data(tps->client, reg, val);
-}
-
-static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
-{
- int err, data;
-
- mutex_lock(&tps->io_lock);
-
- data = tps_65023_read(tps, reg);
- if (data < 0) {
- dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
- err = data;
- goto out;
- }
-
- data |= mask;
- err = tps_65023_write(tps, reg, data);
- if (err)
- dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
-
-out:
- mutex_unlock(&tps->io_lock);
- return err;
-}
-
-static int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask)
-{
- int err, data;
-
- mutex_lock(&tps->io_lock);
-
- data = tps_65023_read(tps, reg);
- if (data < 0) {
- dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
- err = data;
- goto out;
- }
-
- data &= ~mask;
-
- err = tps_65023_write(tps, reg, data);
- if (err)
- dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
-
-out:
- mutex_unlock(&tps->io_lock);
- return err;
-
-}
-
-static int tps_65023_reg_read(struct tps_pmic *tps, u8 reg)
-{
- int data;
-
- mutex_lock(&tps->io_lock);
-
- data = tps_65023_read(tps, reg);
- if (data < 0)
- dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
-
- mutex_unlock(&tps->io_lock);
- return data;
-}
-
-static int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val)
-{
- int err;
-
- mutex_lock(&tps->io_lock);
-
- err = tps_65023_write(tps, reg, val);
- if (err < 0)
- dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
-
- mutex_unlock(&tps->io_lock);
- return err;
-}
-
-static int tps65023_dcdc_is_enabled(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, dcdc = rdev_get_id(dev);
- u8 shift;
-
- if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
- return -EINVAL;
-
- shift = TPS65023_NUM_REGULATOR - dcdc;
- data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL);
-
- if (data < 0)
- return data;
- else
- return (data & 1<<shift) ? 1 : 0;
-}
-
-static int tps65023_ldo_is_enabled(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, ldo = rdev_get_id(dev);
- u8 shift;
-
- if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
- return -EINVAL;
-
- shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
- data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL);
-
- if (data < 0)
- return data;
- else
- return (data & 1<<shift) ? 1 : 0;
-}
-
-static int tps65023_dcdc_enable(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int dcdc = rdev_get_id(dev);
- u8 shift;
-
- if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
- return -EINVAL;
-
- shift = TPS65023_NUM_REGULATOR - dcdc;
- return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
-}
-
-static int tps65023_dcdc_disable(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int dcdc = rdev_get_id(dev);
- u8 shift;
-
- if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
- return -EINVAL;
-
- shift = TPS65023_NUM_REGULATOR - dcdc;
- return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
-}
-
-static int tps65023_ldo_enable(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int ldo = rdev_get_id(dev);
- u8 shift;
-
- if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
- return -EINVAL;
-
- shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
- return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
-}
-
-static int tps65023_ldo_disable(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int ldo = rdev_get_id(dev);
- u8 shift;
-
- if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
- return -EINVAL;
-
- shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
- return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
-}
-
-static int tps65023_dcdc_get_voltage(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, dcdc = rdev_get_id(dev);
-
- if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
- return -EINVAL;
-
- if (dcdc == TPS65023_DCDC_1) {
- data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE);
- if (data < 0)
- return data;
- data &= (tps->info[dcdc]->table_len - 1);
- return tps->info[dcdc]->table[data] * 1000;
- } else
- return tps->info[dcdc]->min_uV;
-}
-
-static int tps65023_dcdc_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV,
- unsigned *selector)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int dcdc = rdev_get_id(dev);
- int vsel;
-
- if (dcdc != TPS65023_DCDC_1)
- return -EINVAL;
-
- if (min_uV < tps->info[dcdc]->min_uV
- || min_uV > tps->info[dcdc]->max_uV)
- return -EINVAL;
- if (max_uV < tps->info[dcdc]->min_uV
- || max_uV > tps->info[dcdc]->max_uV)
- return -EINVAL;
-
- for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) {
- int mV = tps->info[dcdc]->table[vsel];
- int uV = mV * 1000;
-
- /* Break at the first in-range value */
- if (min_uV <= uV && uV <= max_uV)
- break;
- }
-
- *selector = vsel;
-
- /* write to the register in case we found a match */
- if (vsel == tps->info[dcdc]->table_len)
- return -EINVAL;
- else
- return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel);
-}
-
-static int tps65023_ldo_get_voltage(struct regulator_dev *dev)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, ldo = rdev_get_id(dev);
-
- if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
- return -EINVAL;
-
- data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL);
- if (data < 0)
- return data;
-
- data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1));
- data &= (tps->info[ldo]->table_len - 1);
- return tps->info[ldo]->table[data] * 1000;
-}
-
-static int tps65023_ldo_set_voltage(struct regulator_dev *dev,
- int min_uV, int max_uV, unsigned *selector)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int data, vsel, ldo = rdev_get_id(dev);
-
- if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
- return -EINVAL;
-
- if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV)
- return -EINVAL;
- if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV)
- return -EINVAL;
-
- for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) {
- int mV = tps->info[ldo]->table[vsel];
- int uV = mV * 1000;
-
- /* Break at the first in-range value */
- if (min_uV <= uV && uV <= max_uV)
- break;
- }
-
- if (vsel == tps->info[ldo]->table_len)
- return -EINVAL;
-
- *selector = vsel;
-
- data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL);
- if (data < 0)
- return data;
-
- data &= TPS65023_LDO_CTRL_LDOx_MASK(ldo - TPS65023_LDO_1);
- data |= (vsel << (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)));
- return tps_65023_reg_write(tps, TPS65023_REG_LDO_CTRL, data);
-}
-
-static int tps65023_dcdc_list_voltage(struct regulator_dev *dev,
- unsigned selector)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int dcdc = rdev_get_id(dev);
-
- if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
- return -EINVAL;
-
- if (dcdc == TPS65023_DCDC_1) {
- if (selector >= tps->info[dcdc]->table_len)
- return -EINVAL;
- else
- return tps->info[dcdc]->table[selector] * 1000;
- } else
- return tps->info[dcdc]->min_uV;
-}
-
-static int tps65023_ldo_list_voltage(struct regulator_dev *dev,
- unsigned selector)
-{
- struct tps_pmic *tps = rdev_get_drvdata(dev);
- int ldo = rdev_get_id(dev);
-
- if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
- return -EINVAL;
-
- if (selector >= tps->info[ldo]->table_len)
- return -EINVAL;
- else
- return tps->info[ldo]->table[selector] * 1000;
-}
-
-/* Operations permitted on VDCDCx */
-static struct regulator_ops tps65023_dcdc_ops = {
- .is_enabled = tps65023_dcdc_is_enabled,
- .enable = tps65023_dcdc_enable,
- .disable = tps65023_dcdc_disable,
- .get_voltage = tps65023_dcdc_get_voltage,
- .set_voltage = tps65023_dcdc_set_voltage,
- .list_voltage = tps65023_dcdc_list_voltage,
-};
-
-/* Operations permitted on LDOx */
-static struct regulator_ops tps65023_ldo_ops = {
- .is_enabled = tps65023_ldo_is_enabled,
- .enable = tps65023_ldo_enable,
- .disable = tps65023_ldo_disable,
- .get_voltage = tps65023_ldo_get_voltage,
- .set_voltage = tps65023_ldo_set_voltage,
- .list_voltage = tps65023_ldo_list_voltage,
-};
-
-static int __devinit tps_65023_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- const struct tps_info *info = (void *)id->driver_data;
- struct regulator_init_data *init_data;
- struct regulator_dev *rdev;
- struct tps_pmic *tps;
- int i;
- int error;
-
- if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return -EIO;
-
- /**
- * init_data points to array of regulator_init structures
- * coming from the board-evm file.
- */
- init_data = client->dev.platform_data;
- if (!init_data)
- return -EIO;
-
- tps = kzalloc(sizeof(*tps), GFP_KERNEL);
- if (!tps)
- return -ENOMEM;
-
- mutex_init(&tps->io_lock);
-
- /* common for all regulators */
- tps->client = client;
-
- for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) {
- /* Store regulator specific information */
- tps->info[i] = info;
-
- tps->desc[i].name = info->name;
- tps->desc[i].id = i;
- tps->desc[i].n_voltages = num_voltages[i];
- tps->desc[i].ops = (i > TPS65023_DCDC_3 ?
- &tps65023_ldo_ops : &tps65023_dcdc_ops);
- tps->desc[i].type = REGULATOR_VOLTAGE;
- tps->desc[i].owner = THIS_MODULE;
-
- /* Register the regulators */
- rdev = regulator_register(&tps->desc[i], &client->dev,
- init_data, tps);
- if (IS_ERR(rdev)) {
- dev_err(&client->dev, "failed to register %s\n",
- id->name);
- error = PTR_ERR(rdev);
- goto fail;
- }
-
- /* Save regulator for cleanup */
- tps->rdev[i] = rdev;
- }
-
- i2c_set_clientdata(client, tps);
-
- return 0;
-
- fail:
- while (--i >= 0)
- regulator_unregister(tps->rdev[i]);
-
- kfree(tps);
- return error;
-}
-
-/**
- * tps_65023_remove - TPS65023 driver i2c remove handler
- * @client: i2c driver client device structure
- *
- * Unregister TPS driver as an i2c client device driver
- */
-static int __devexit tps_65023_remove(struct i2c_client *client)
-{
- struct tps_pmic *tps = i2c_get_clientdata(client);
- int i;
-
- for (i = 0; i < TPS65023_NUM_REGULATOR; i++)
- regulator_unregister(tps->rdev[i]);
-
- kfree(tps);
-
- return 0;
-}
-
-static const struct tps_info tps65023_regs[] = {
- {
- .name = "VDCDC1",
- .min_uV = 800000,
- .max_uV = 1600000,
- .table_len = ARRAY_SIZE(VDCDC1_VSEL_table),
- .table = VDCDC1_VSEL_table,
- },
- {
- .name = "VDCDC2",
- .min_uV = 3300000,
- .max_uV = 3300000,
- .fixed = 1,
- },
- {
- .name = "VDCDC3",
- .min_uV = 1800000,
- .max_uV = 1800000,
- .fixed = 1,
- },
- {
- .name = "LDO1",
- .min_uV = 1000000,
- .max_uV = 3150000,
- .table_len = ARRAY_SIZE(LDO1_VSEL_table),
- .table = LDO1_VSEL_table,
- },
- {
- .name = "LDO2",
- .min_uV = 1050000,
- .max_uV = 3300000,
- .table_len = ARRAY_SIZE(LDO2_VSEL_table),
- .table = LDO2_VSEL_table,
- },
-};
-
-static const struct i2c_device_id tps_65023_id[] = {
- {.name = "tps65023",
- .driver_data = (unsigned long) tps65023_regs,},
- {.name = "tps65021",
- .driver_data = (unsigned long) tps65023_regs,},
- { },
-};
-
-MODULE_DEVICE_TABLE(i2c, tps_65023_id);
-
-static struct i2c_driver tps_65023_i2c_driver = {
- .driver = {
- .name = "tps65023",
- .owner = THIS_MODULE,
- },
- .probe = tps_65023_probe,
- .remove = __devexit_p(tps_65023_remove),
- .id_table = tps_65023_id,
-};
-
-/**
- * tps_65023_init
- *
- * Module init function
- */
-static int __init tps_65023_init(void)
-{
- return i2c_add_driver(&tps_65023_i2c_driver);
-}
-subsys_initcall(tps_65023_init);
-
-/**
- * tps_65023_cleanup
- *
- * Module exit function
- */
-static void __exit tps_65023_cleanup(void)
-{
- i2c_del_driver(&tps_65023_i2c_driver);
-}
-module_exit(tps_65023_cleanup);
-
-MODULE_AUTHOR("Texas Instruments");
-MODULE_DESCRIPTION("TPS65023 voltage regulator driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/regulator/tps6502x-regulator.c b/drivers/regulator/tps6502x-regulator.c
new file mode 100644
index 0000000..df2ec73
--- /dev/null
+++ b/drivers/regulator/tps6502x-regulator.c
@@ -0,0 +1,751 @@
+/*
+ * tps6502x-regulator.c
+ *
+ * Supports TPS65020 and TPS65023 Regulator
+ *
+ * Copyright (C) 2011 Marcus Folkesson <marcus.folkesson@gmail.com>
+ *
+ * Based on:
+ * tps65023-regulator.c
+ *
+ * Supports TPS65023 Regulator
+ *
+ * Copyright (C) 2009 Texas Instrument 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.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+
+/* Register definitions */
+#define TPS6502X_REG_VERSION 0
+#define TPS6502X_REG_PGOODZ 1
+#define TPS6502X_REG_MASK 2
+#define TPS6502X_REG_REG_CTRL 3
+#define TPS6502X_REG_CON_CTRL 4
+#define TPS6502X_REG_CON_CTRL2 5
+#define TPS6502X_REG_DEF_CORE 6
+#define TPS6502X_REG_DEFSLEW 7
+#define TPS6502X_REG_LDO_CTRL 8
+
+/* PGOODZ bitfields */
+#define TPS6502X_PGOODZ_PWRFAILZ BIT(7)
+#define TPS6502X_PGOODZ_LOWBATTZ BIT(6)
+#define TPS6502X_PGOODZ_VDCDC1 BIT(5)
+#define TPS6502X_PGOODZ_VDCDC2 BIT(4)
+#define TPS6502X_PGOODZ_VDCDC3 BIT(3)
+#define TPS6502X_PGOODZ_LDO2 BIT(2)
+#define TPS6502X_PGOODZ_LDO1 BIT(1)
+
+/* MASK bitfields */
+#define TPS6502X_MASK_PWRFAILZ BIT(7)
+#define TPS6502X_MASK_LOWBATTZ BIT(6)
+#define TPS6502X_MASK_VDCDC1 BIT(5)
+#define TPS6502X_MASK_VDCDC2 BIT(4)
+#define TPS6502X_MASK_VDCDC3 BIT(3)
+#define TPS6502X_MASK_LDO2 BIT(2)
+#define TPS6502X_MASK_LDO1 BIT(1)
+
+/* REG_CTRL bitfields */
+#define TPS6502X_REG_CTRL_VDCDC1_EN BIT(5)
+#define TPS6502X_REG_CTRL_VDCDC2_EN BIT(4)
+#define TPS6502X_REG_CTRL_VDCDC3_EN BIT(3)
+#define TPS6502X_REG_CTRL_LDO2_EN BIT(2)
+#define TPS6502X_REG_CTRL_LDO1_EN BIT(1)
+
+/* REG_CTRL2 bitfields */
+#define TPS6502X_REG_CTRL2_GO BIT(7)
+#define TPS6502X_REG_CTRL2_CORE_ADJ BIT(6)
+#define TPS6502X_REG_CTRL2_DCDC2 BIT(2)
+#define TPS6502X_REG_CTRL2_DCDC1 BIT(2)
+#define TPS6502X_REG_CTRL2_DCDC3 BIT(0)
+
+/* LDO_CTRL bitfields */
+#define TPS6502X_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4)
+#define TPS6502X_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4))
+
+/* Number of step-down converters available */
+#define TPS6502X_NUM_DCDC 3
+/* Number of LDO voltage regulators available */
+#define TPS6502X_NUM_LDO 2
+/* Number of total regulators available */
+#define TPS6502X_NUM_REGULATOR (TPS6502X_NUM_DCDC + TPS6502X_NUM_LDO)
+
+/* DCDCs */
+#define TPS6502X_DCDC_1 0
+#define TPS6502X_DCDC_2 1
+#define TPS6502X_DCDC_3 2
+/* LDOs */
+#define TPS6502X_LDO_1 3
+#define TPS6502X_LDO_2 4
+
+#define TPS6502X_MAX_REG_ID TPS6502X_LDO_2
+
+
+/* Supported voltage value for core regulator */
+static const u16 VCORE_VSEL_table[] = {
+ 800, 825, 850, 875,
+ 900, 925, 950, 975,
+ 1000, 1025, 1050, 1075,
+ 1100, 1125, 1150, 1175,
+ 1200, 1225, 1250, 1275,
+ 1300, 1325, 1350, 1375,
+ 1400, 1425, 1450, 1475,
+ 1500, 1525, 1550, 1600,
+};
+
+
+/* Supported voltage values for LDO regulators for tps65020 */
+static const u16 TPS65020_LDO1_VSEL_table[] = {
+ 1000, 1050, 1100, 1300,
+ 1800, 2500, 3000, 3300,
+};
+
+static const u16 TPS65020_LDO2_VSEL_table[] = {
+ 1000, 1050, 1100, 1300,
+ 1800, 2500, 3000, 3300,
+};
+
+
+static unsigned int tps65020_num_voltages[] = {
+ 0,
+ 0,
+ ARRAY_SIZE(VCORE_VSEL_table),
+ ARRAY_SIZE(TPS65020_LDO1_VSEL_table),
+ ARRAY_SIZE(TPS65020_LDO2_VSEL_table)
+};
+
+
+/* Supported voltage values for LDO regulators for tps65023 */
+static const u16 TPS65023_LDO1_VSEL_table[] = {
+ 1000, 1100, 1300, 1800,
+ 2200, 2600, 2800, 3150,
+};
+
+static const u16 TPS65023_LDO2_VSEL_table[] = {
+ 1050, 1200, 1300, 1800,
+ 2500, 2800, 3000, 3300,
+};
+
+
+static unsigned int tps65023_num_voltages[] = {
+ ARRAY_SIZE(VCORE_VSEL_table),
+ 0,
+ 0,
+ ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
+ ARRAY_SIZE(TPS65023_LDO2_VSEL_table)
+};
+
+/* Regulator specific details */
+struct tps_info {
+ const char *name;
+ unsigned min_uV;
+ unsigned max_uV;
+ bool fixed;
+ u8 table_len;
+ const u16 *table;
+};
+
+/* PMIC details */
+struct tps_pmic {
+ struct regulator_desc desc[TPS6502X_NUM_REGULATOR];
+ struct i2c_client *client;
+ struct regulator_dev *rdev[TPS6502X_NUM_REGULATOR];
+ const struct tps_info *info[TPS6502X_NUM_REGULATOR];
+ struct mutex io_lock;
+ u8 core_regulator;
+};
+
+/* Struct passed as driver data */
+struct tps_driver_data {
+ struct tps_info *info;
+ u8 core_regulator;
+ unsigned int *num_voltages;
+};
+
+static inline int tps_6502x_read(struct tps_pmic *tps, u8 reg)
+{
+ return i2c_smbus_read_byte_data(tps->client, reg);
+}
+
+static inline int tps_6502x_write(struct tps_pmic *tps, u8 reg, u8 val)
+{
+ return i2c_smbus_write_byte_data(tps->client, reg, val);
+}
+
+static int tps_6502x_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
+{
+ int err, data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps_6502x_read(tps, reg);
+ if (data < 0) {
+ dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+ err = data;
+ goto out;
+ }
+
+ data |= mask;
+ err = tps_6502x_write(tps, reg, data);
+ if (err)
+ dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+ mutex_unlock(&tps->io_lock);
+ return err;
+}
+
+static int tps_6502x_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask)
+{
+ int err, data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps_6502x_read(tps, reg);
+ if (data < 0) {
+ dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+ err = data;
+ goto out;
+ }
+
+ data &= ~mask;
+
+ err = tps_6502x_write(tps, reg, data);
+ if (err)
+ dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+ mutex_unlock(&tps->io_lock);
+ return err;
+
+}
+
+static int tps_6502x_reg_read(struct tps_pmic *tps, u8 reg)
+{
+ int data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps_6502x_read(tps, reg);
+ if (data < 0)
+ dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
+
+ mutex_unlock(&tps->io_lock);
+ return data;
+}
+
+static int tps_6502x_reg_write(struct tps_pmic *tps, u8 reg, u8 val)
+{
+ int err;
+
+ mutex_lock(&tps->io_lock);
+
+ err = tps_6502x_write(tps, reg, val);
+ if (err < 0)
+ dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
+
+ mutex_unlock(&tps->io_lock);
+ return err;
+}
+
+static int tps6502x_dcdc_is_enabled(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, dcdc = rdev_get_id(dev);
+ u8 shift;
+
+ if (dcdc < TPS6502X_DCDC_1 || dcdc > TPS6502X_DCDC_3)
+ return -EINVAL;
+
+ shift = TPS6502X_NUM_REGULATOR - dcdc;
+ data = tps_6502x_reg_read(tps, TPS6502X_REG_REG_CTRL);
+
+ if (data < 0)
+ return data;
+ else
+ return (data & 1<<shift) ? 1 : 0;
+}
+
+static int tps6502x_ldo_is_enabled(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, ldo = rdev_get_id(dev);
+ u8 shift;
+
+ if (ldo < TPS6502X_LDO_1 || ldo > TPS6502X_LDO_2)
+ return -EINVAL;
+
+ shift = (ldo == TPS6502X_LDO_1 ? 1 : 2);
+ data = tps_6502x_reg_read(tps, TPS6502X_REG_REG_CTRL);
+
+ if (data < 0)
+ return data;
+ else
+ return (data & 1<<shift) ? 1 : 0;
+}
+
+static int tps6502x_dcdc_enable(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int dcdc = rdev_get_id(dev);
+ u8 shift;
+
+ if (dcdc < TPS6502X_DCDC_1 || dcdc > TPS6502X_DCDC_3)
+ return -EINVAL;
+
+ shift = TPS6502X_NUM_REGULATOR - dcdc;
+ return tps_6502x_set_bits(tps, TPS6502X_REG_REG_CTRL, 1 << shift);
+}
+
+static int tps6502x_dcdc_disable(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int dcdc = rdev_get_id(dev);
+ u8 shift;
+
+ if (dcdc < TPS6502X_DCDC_1 || dcdc > TPS6502X_DCDC_3)
+ return -EINVAL;
+
+ shift = TPS6502X_NUM_REGULATOR - dcdc;
+ return tps_6502x_clear_bits(tps, TPS6502X_REG_REG_CTRL, 1 << shift);
+}
+
+static int tps6502x_ldo_enable(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev);
+ u8 shift;
+
+ if (ldo < TPS6502X_LDO_1 || ldo > TPS6502X_LDO_2)
+ return -EINVAL;
+
+ shift = (ldo == TPS6502X_LDO_1 ? 1 : 2);
+ return tps_6502x_set_bits(tps, TPS6502X_REG_REG_CTRL, 1 << shift);
+}
+
+static int tps6502x_ldo_disable(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev);
+ u8 shift;
+
+ if (ldo < TPS6502X_LDO_1 || ldo > TPS6502X_LDO_2)
+ return -EINVAL;
+
+ shift = (ldo == TPS6502X_LDO_1 ? 1 : 2);
+ return tps_6502x_clear_bits(tps, TPS6502X_REG_REG_CTRL, 1 << shift);
+}
+
+static int tps6502x_dcdc_get_voltage(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS6502X_DCDC_1 || dcdc > TPS6502X_DCDC_3)
+ return -EINVAL;
+
+ if (dcdc == tps->core_regulator) {
+ data = tps_6502x_reg_read(tps, TPS6502X_REG_DEF_CORE);
+ if (data < 0)
+ return data;
+ data &= (tps->info[dcdc]->table_len - 1);
+ return tps->info[dcdc]->table[data] * 1000;
+ } else
+ return tps->info[dcdc]->min_uV;
+}
+
+static int tps6502x_dcdc_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int dcdc = rdev_get_id(dev);
+ int vsel;
+ int ret;
+
+ if (dcdc != tps->core_regulator)
+ return -EINVAL;
+
+ if (min_uV < tps->info[dcdc]->min_uV
+ || min_uV > tps->info[dcdc]->max_uV)
+ return -EINVAL;
+ if (max_uV < tps->info[dcdc]->min_uV
+ || max_uV > tps->info[dcdc]->max_uV)
+ return -EINVAL;
+
+ for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) {
+ int mV = tps->info[dcdc]->table[vsel];
+ int uV = mV * 1000;
+
+ /* Break at the first in-range value */
+ if (min_uV <= uV && uV <= max_uV)
+ break;
+ }
+
+ /* write to the register in case we found a match */
+ if (vsel == tps->info[dcdc]->table_len) {
+ ret = -EINVAL;
+ } else {
+ ret = tps_6502x_reg_write(tps, TPS6502X_REG_DEF_CORE, vsel);
+
+ /* Tell the chip that we have changed the value in DEFCORE
+ * and its time to update the core voltage
+ */
+ tps_6502x_set_bits(tps, TPS6502X_REG_CON_CTRL2,
+ TPS6502X_REG_CTRL2_GO);
+ }
+
+ return ret;
+}
+
+static int tps6502x_ldo_get_voltage(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, ldo = rdev_get_id(dev);
+
+ if (ldo < TPS6502X_LDO_1 || ldo > TPS6502X_LDO_2)
+ return -EINVAL;
+
+ data = tps_6502x_reg_read(tps, TPS6502X_REG_LDO_CTRL);
+ if (data < 0)
+ return data;
+
+ data >>= (TPS6502X_LDO_CTRL_LDOx_SHIFT(ldo - TPS6502X_LDO_1));
+ data &= (tps->info[ldo]->table_len - 1);
+ return tps->info[ldo]->table[data] * 1000;
+}
+
+static int tps6502x_ldo_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, vsel, ldo = rdev_get_id(dev);
+
+ if (ldo < TPS6502X_LDO_1 || ldo > TPS6502X_LDO_2)
+ return -EINVAL;
+
+ if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV)
+ return -EINVAL;
+ if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV)
+ return -EINVAL;
+
+ for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) {
+ int mV = tps->info[ldo]->table[vsel];
+ int uV = mV * 1000;
+
+ /* Break at the first in-range value */
+ if (min_uV <= uV && uV <= max_uV)
+ break;
+ }
+
+ if (vsel == tps->info[ldo]->table_len)
+ return -EINVAL;
+
+ data = tps_6502x_reg_read(tps, TPS6502X_REG_LDO_CTRL);
+ if (data < 0)
+ return data;
+
+ data &= TPS6502X_LDO_CTRL_LDOx_MASK(ldo - TPS6502X_LDO_1);
+ data |= (vsel << (TPS6502X_LDO_CTRL_LDOx_SHIFT(ldo - TPS6502X_LDO_1)));
+ return tps_6502x_reg_write(tps, TPS6502X_REG_LDO_CTRL, data);
+}
+
+static int tps6502x_dcdc_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS6502X_DCDC_1 || dcdc > TPS6502X_DCDC_3)
+ return -EINVAL;
+
+ if (dcdc == tps->core_regulator) {
+ if (selector >= tps->info[dcdc]->table_len)
+ return -EINVAL;
+ else
+ return tps->info[dcdc]->table[selector] * 1000;
+ } else
+ return tps->info[dcdc]->min_uV;
+}
+
+static int tps6502x_ldo_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev);
+
+ if (ldo < TPS6502X_LDO_1 || ldo > TPS6502X_LDO_2)
+ return -EINVAL;
+
+ if (selector >= tps->info[ldo]->table_len)
+ return -EINVAL;
+ else
+ return tps->info[ldo]->table[selector] * 1000;
+}
+
+/* Operations permitted on VDCDCx */
+static struct regulator_ops tps6502x_dcdc_ops = {
+ .is_enabled = tps6502x_dcdc_is_enabled,
+ .enable = tps6502x_dcdc_enable,
+ .disable = tps6502x_dcdc_disable,
+ .get_voltage = tps6502x_dcdc_get_voltage,
+ .set_voltage = tps6502x_dcdc_set_voltage,
+ .list_voltage = tps6502x_dcdc_list_voltage,
+};
+
+/* Operations permitted on LDOx */
+static struct regulator_ops tps6502x_ldo_ops = {
+ .is_enabled = tps6502x_ldo_is_enabled,
+ .enable = tps6502x_ldo_enable,
+ .disable = tps6502x_ldo_disable,
+ .get_voltage = tps6502x_ldo_get_voltage,
+ .set_voltage = tps6502x_ldo_set_voltage,
+ .list_voltage = tps6502x_ldo_list_voltage,
+};
+
+static
+int tps_6502x_probe(struct i2c_client *client, const struct i2c_device_id *id)
+{
+ static int desc_id;
+ const struct tps_driver_data *drv_data = (void *)id->driver_data;
+ const struct tps_info *info = drv_data->info;
+ struct regulator_init_data *init_data;
+ struct regulator_dev *rdev;
+ struct tps_pmic *tps;
+ int i;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
+
+ /**
+ * init_data points to array of regulator_init structures
+ * coming from the board-evm file.
+ */
+ init_data = client->dev.platform_data;
+
+ if (!init_data)
+ return -EIO;
+
+ tps = kzalloc(sizeof(*tps), GFP_KERNEL);
+ if (!tps)
+ return -ENOMEM;
+
+ mutex_init(&tps->io_lock);
+
+ /* common for all regulators */
+ tps->client = client;
+ tps->core_regulator = drv_data->core_regulator;
+
+ for (i = 0; i < TPS6502X_NUM_REGULATOR; i++, info++, init_data++) {
+ /* Store regulator specific information */
+ tps->info[i] = info;
+
+ tps->desc[i].name = info->name;
+ tps->desc[i].id = desc_id++;
+ tps->desc[i].n_voltages = drv_data->num_voltages[i];
+ tps->desc[i].ops = (i > TPS6502X_DCDC_3 ?
+ &tps6502x_ldo_ops : &tps6502x_dcdc_ops);
+ tps->desc[i].type = REGULATOR_VOLTAGE;
+ tps->desc[i].owner = THIS_MODULE;
+
+ /* Register the regulators */
+ rdev = regulator_register(&tps->desc[i], &client->dev,
+ init_data, tps);
+ if (IS_ERR(rdev)) {
+ dev_err(&client->dev, "failed to register %s\n",
+ id->name);
+
+ /* Unregister */
+ while (i)
+ regulator_unregister(tps->rdev[--i]);
+
+ tps->client = NULL;
+
+ /* clear the client data in i2c */
+ i2c_set_clientdata(client, NULL);
+ kfree(tps);
+ return PTR_ERR(rdev);
+ }
+
+ /* Save regulator for cleanup */
+ tps->rdev[i] = rdev;
+ }
+
+ i2c_set_clientdata(client, tps);
+
+ /* Enable setting output voltage by I2C */
+ tps_6502x_clear_bits(tps, TPS6502X_REG_CON_CTRL2,
+ TPS6502X_REG_CTRL2_CORE_ADJ);
+
+ return 0;
+}
+
+/**
+ * tps_6502x_remove - TPS6502X driver i2c remove handler
+ * @client: i2c driver client device structure
+ *
+ * Unregister TPS driver as an i2c client device driver
+ */
+static int __devexit tps_6502x_remove(struct i2c_client *client)
+{
+ struct tps_pmic *tps = i2c_get_clientdata(client);
+ int i;
+
+ for (i = 0; i < TPS6502X_NUM_REGULATOR; i++)
+ regulator_unregister(tps->rdev[i]);
+
+ tps->client = NULL;
+
+ /* clear the client data in i2c */
+ i2c_set_clientdata(client, NULL);
+ kfree(tps);
+
+ return 0;
+}
+
+
+
+static const struct tps_info tps65020_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65020_LDO1_VSEL_table),
+ .table = TPS65020_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65020_LDO2_VSEL_table),
+ .table = TPS65020_LDO2_VSEL_table,
+ },
+};
+
+static const struct tps_info tps65023_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
+ .table = TPS65023_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
+ .table = TPS65023_LDO2_VSEL_table,
+ },
+};
+
+
+struct tps_driver_data tps65020_drv_data = {
+ .info = tps65020_regs,
+ .core_regulator = TPS6502X_DCDC_3,
+ .num_voltages = tps65020_num_voltages,
+};
+
+struct tps_driver_data tps65023_drv_data = {
+ .info = tps65023_regs,
+ .core_regulator = TPS6502X_DCDC_1,
+ .num_voltages = tps65023_num_voltages,
+};
+
+static const struct i2c_device_id tps_6502x_id[] = {
+ {"tps65020", (unsigned long) &tps65020_drv_data,},
+ {"tps65023", (unsigned long) &tps65023_drv_data,},
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, tps_6502x_id);
+
+static struct i2c_driver tps_6502x_i2c_driver = {
+ .driver = {
+ .name = "tps6502x",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps_6502x_probe,
+ .remove = __devexit_p(tps_6502x_remove),
+ .id_table = tps_6502x_id,
+};
+
+/**
+ * tps_6502x_init
+ *
+ * Module init function
+ */
+static int __init tps_6502x_init(void)
+{
+ return i2c_add_driver(&tps_6502x_i2c_driver);
+}
+subsys_initcall(tps_6502x_init);
+
+/**
+ * tps_6502x_cleanup
+ *
+ * Module exit function
+ */
+static void __exit tps_6502x_cleanup(void)
+{
+ i2c_del_driver(&tps_6502x_i2c_driver);
+}
+module_exit(tps_6502x_cleanup);
+
+MODULE_AUTHOR("Texas Instruments, Marcus Folkesson <marcus.folkesson@gmail.com>");
+MODULE_DESCRIPTION("TPS6502X voltage regulator driver");
+MODULE_LICENSE("GPL v2");
--
1.7.4.1
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