Message-Id: <20211021192258.21968-3-digetx@gmail.com>
Date:   Thu, 21 Oct 2021 22:22:57 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Laxman Dewangan <ldewangan@...dia.com>
Cc:     linux-kernel@...r.kernel.org, linux-rtc@...r.kernel.org
Subject: [PATCH v1 2/3] regulator: tps80031: Remove driver

Driver was upstreamed in 2013 and never got a user, remove it.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/regulator/Kconfig              |   9 -
 drivers/regulator/Makefile             |   1 -
 drivers/regulator/tps80031-regulator.c | 753 -------------------------
 3 files changed, 763 deletions(-)
 delete mode 100644 drivers/regulator/tps80031-regulator.c

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 27578e9504d2..6be9b1c8a615 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -1339,15 +1339,6 @@ config REGULATOR_TPS65912
 	help
 	    This driver supports TPS65912 voltage regulator chip.
 
-config REGULATOR_TPS80031
-	tristate "TI TPS80031/TPS80032 power regulator driver"
-	depends on MFD_TPS80031
-	help
-	  TPS80031/ TPS80032 Fully Integrated Power Management with Power
-	  Path and Battery Charger. It has 5 configurable step-down
-	  converters, 11 general purpose LDOs, VBUS generator and digital
-	  output to control regulators.
-
 config REGULATOR_TWL4030
 	tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
 	depends on TWL4030_CORE
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 9e382b50a5ef..b07d2a22df0b 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -158,7 +158,6 @@ obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
 obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
-obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o
 obj-$(CONFIG_REGULATOR_TPS65132) += tps65132-regulator.o
 obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o twl6030-regulator.o
 obj-$(CONFIG_REGULATOR_UNIPHIER) += uniphier-regulator.o
diff --git a/drivers/regulator/tps80031-regulator.c b/drivers/regulator/tps80031-regulator.c
deleted file mode 100644
index a29e65230132..000000000000
--- a/drivers/regulator/tps80031-regulator.c
+++ /dev/null
@@ -1,753 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-//
-// tps80031-regulator.c -- TI TPS80031 regulator driver.
-//
-// Regulator driver for TI TPS80031/TPS80032 Fully Integrated Power
-// Management with Power Path and Battery Charger.
-//
-// Copyright (c) 2012, NVIDIA Corporation.
-//
-// Author: Laxman Dewangan <ldewangan@...dia.com>
-
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/mfd/tps80031.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/regulator/driver.h>
-#include <linux/regulator/machine.h>
-#include <linux/slab.h>
-
-/* Flags for DCDC Voltage reading */
-#define DCDC_OFFSET_EN		BIT(0)
-#define DCDC_EXTENDED_EN	BIT(1)
-#define TRACK_MODE_ENABLE	BIT(2)
-
-#define SMPS_MULTOFFSET_VIO	BIT(1)
-#define SMPS_MULTOFFSET_SMPS1	BIT(3)
-#define SMPS_MULTOFFSET_SMPS2	BIT(4)
-#define SMPS_MULTOFFSET_SMPS3	BIT(6)
-#define SMPS_MULTOFFSET_SMPS4	BIT(0)
-
-#define SMPS_CMD_MASK		0xC0
-#define SMPS_VSEL_MASK		0x3F
-#define LDO_VSEL_MASK		0x1F
-#define LDO_TRACK_VSEL_MASK	0x3F
-
-#define MISC2_LDOUSB_IN_VSYS	BIT(4)
-#define MISC2_LDOUSB_IN_PMID	BIT(3)
-#define MISC2_LDOUSB_IN_MASK	0x18
-
-#define MISC2_LDO3_SEL_VIB_VAL	BIT(0)
-#define MISC2_LDO3_SEL_VIB_MASK	0x1
-
-#define BOOST_HW_PWR_EN		BIT(5)
-#define BOOST_HW_PWR_EN_MASK	BIT(5)
-
-#define OPA_MODE_EN		BIT(6)
-#define OPA_MODE_EN_MASK	BIT(6)
-
-#define USB_VBUS_CTRL_SET	0x04
-#define USB_VBUS_CTRL_CLR	0x05
-#define VBUS_DISCHRG		0x20
-
-struct tps80031_regulator_info {
-	/* Regulator register address.*/
-	u8		trans_reg;
-	u8		state_reg;
-	u8		force_reg;
-	u8		volt_reg;
-	u8		volt_id;
-
-	/*Power request bits */
-	int		preq_bit;
-
-	/* used by regulator core */
-	struct regulator_desc	desc;
-
-};
-
-struct tps80031_regulator {
-	struct device			*dev;
-	struct tps80031_regulator_info	*rinfo;
-
-	u8				device_flags;
-	unsigned int			config_flags;
-	unsigned int			ext_ctrl_flag;
-};
-
-static inline struct device *to_tps80031_dev(struct regulator_dev *rdev)
-{
-	return rdev_get_dev(rdev)->parent->parent;
-}
-
-static int tps80031_reg_is_enabled(struct regulator_dev *rdev)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-	u8 reg_val;
-	int ret;
-
-	if (ri->ext_ctrl_flag & TPS80031_EXT_PWR_REQ)
-		return true;
-
-	ret = tps80031_read(parent, TPS80031_SLAVE_ID1, ri->rinfo->state_reg,
-				&reg_val);
-	if (ret < 0) {
-		dev_err(&rdev->dev, "Reg 0x%02x read failed, err = %d\n",
-			ri->rinfo->state_reg, ret);
-		return ret;
-	}
-	return (reg_val & TPS80031_STATE_MASK) == TPS80031_STATE_ON;
-}
-
-static int tps80031_reg_enable(struct regulator_dev *rdev)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-	int ret;
-
-	if (ri->ext_ctrl_flag & TPS80031_EXT_PWR_REQ)
-		return 0;
-
-	ret = tps80031_update(parent, TPS80031_SLAVE_ID1, ri->rinfo->state_reg,
-			TPS80031_STATE_ON, TPS80031_STATE_MASK);
-	if (ret < 0) {
-		dev_err(&rdev->dev, "Reg 0x%02x update failed, err = %d\n",
-			ri->rinfo->state_reg, ret);
-		return ret;
-	}
-	return ret;
-}
-
-static int tps80031_reg_disable(struct regulator_dev *rdev)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-	int ret;
-
-	if (ri->ext_ctrl_flag & TPS80031_EXT_PWR_REQ)
-		return 0;
-
-	ret = tps80031_update(parent, TPS80031_SLAVE_ID1, ri->rinfo->state_reg,
-			TPS80031_STATE_OFF, TPS80031_STATE_MASK);
-	if (ret < 0)
-		dev_err(&rdev->dev, "Reg 0x%02x update failed, err = %d\n",
-			ri->rinfo->state_reg, ret);
-	return ret;
-}
-
-/* DCDC voltages for the selector of 58 to 63 */
-static const int tps80031_dcdc_voltages[4][5] = {
-	{ 1350, 1500, 1800, 1900, 2100},
-	{ 1350, 1500, 1800, 1900, 2100},
-	{ 2084, 2315, 2778, 2932, 3241},
-	{ 4167, 2315, 2778, 2932, 3241},
-};
-
-static int tps80031_dcdc_list_voltage(struct regulator_dev *rdev, unsigned sel)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	int volt_index = ri->device_flags & 0x3;
-
-	if (sel == 0)
-		return 0;
-	else if (sel < 58)
-		return regulator_list_voltage_linear(rdev, sel - 1);
-	else
-		return tps80031_dcdc_voltages[volt_index][sel - 58] * 1000;
-}
-
-static int tps80031_dcdc_set_voltage_sel(struct regulator_dev *rdev,
-		unsigned vsel)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-	int ret;
-	u8 reg_val;
-
-	if (ri->rinfo->force_reg) {
-		ret = tps80031_read(parent, ri->rinfo->volt_id,
-						ri->rinfo->force_reg, &reg_val);
-		if (ret < 0) {
-			dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
-				ri->rinfo->force_reg, ret);
-			return ret;
-		}
-		if (!(reg_val & SMPS_CMD_MASK)) {
-			ret = tps80031_update(parent, ri->rinfo->volt_id,
-				ri->rinfo->force_reg, vsel, SMPS_VSEL_MASK);
-			if (ret < 0)
-				dev_err(ri->dev,
-					"reg 0x%02x update failed, e = %d\n",
-					ri->rinfo->force_reg, ret);
-			return ret;
-		}
-	}
-	ret = tps80031_update(parent, ri->rinfo->volt_id,
-			ri->rinfo->volt_reg, vsel, SMPS_VSEL_MASK);
-	if (ret < 0)
-		dev_err(ri->dev, "reg 0x%02x update failed, e = %d\n",
-			ri->rinfo->volt_reg, ret);
-	return ret;
-}
-
-static int tps80031_dcdc_get_voltage_sel(struct regulator_dev *rdev)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-	uint8_t vsel = 0;
-	int ret;
-
-	if (ri->rinfo->force_reg) {
-		ret = tps80031_read(parent, ri->rinfo->volt_id,
-						ri->rinfo->force_reg, &vsel);
-		if (ret < 0) {
-			dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
-					ri->rinfo->force_reg, ret);
-			return ret;
-		}
-
-		if (!(vsel & SMPS_CMD_MASK))
-			return vsel & SMPS_VSEL_MASK;
-	}
-	ret = tps80031_read(parent, ri->rinfo->volt_id,
-				ri->rinfo->volt_reg, &vsel);
-	if (ret < 0) {
-		dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
-			ri->rinfo->volt_reg, ret);
-		return ret;
-	}
-	return vsel & SMPS_VSEL_MASK;
-}
-
-static int tps80031_ldo_list_voltage(struct regulator_dev *rdev,
-				     unsigned int sel)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-
-	/* Check for valid setting for TPS80031 or TPS80032-ES1.0 */
-	if ((ri->rinfo->desc.id == TPS80031_REGULATOR_LDO2) &&
-			(ri->device_flags & TRACK_MODE_ENABLE)) {
-		unsigned nvsel = (sel) & 0x1F;
-		if (((tps80031_get_chip_info(parent) == TPS80031) ||
-			((tps80031_get_chip_info(parent) == TPS80032) &&
-			(tps80031_get_pmu_version(parent) == 0x0))) &&
-			((nvsel == 0x0) || (nvsel >= 0x19 && nvsel <= 0x1F))) {
-				dev_err(ri->dev,
-					"Invalid sel %d in track mode LDO2\n",
-					nvsel);
-				return -EINVAL;
-		}
-	}
-
-	return regulator_list_voltage_linear(rdev, sel);
-}
-
-static int tps80031_ldo_map_voltage(struct regulator_dev *rdev,
-				    int min_uV, int max_uV)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-
-	/* Check for valid setting for TPS80031 or TPS80032-ES1.0 */
-	if ((ri->rinfo->desc.id == TPS80031_REGULATOR_LDO2) &&
-			(ri->device_flags & TRACK_MODE_ENABLE)) {
-		if (((tps80031_get_chip_info(parent) == TPS80031) ||
-			((tps80031_get_chip_info(parent) == TPS80032) &&
-			(tps80031_get_pmu_version(parent) == 0x0)))) {
-			return regulator_map_voltage_iterate(rdev, min_uV,
-							     max_uV);
-		}
-	}
-
-	return regulator_map_voltage_linear(rdev, min_uV, max_uV);
-}
-
-static int tps80031_vbus_is_enabled(struct regulator_dev *rdev)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-	int ret;
-	uint8_t ctrl1 = 0;
-	uint8_t ctrl3 = 0;
-
-	ret = tps80031_read(parent, TPS80031_SLAVE_ID2,
-			TPS80031_CHARGERUSB_CTRL1, &ctrl1);
-	if (ret < 0) {
-		dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
-			TPS80031_CHARGERUSB_CTRL1, ret);
-		return ret;
-	}
-	ret = tps80031_read(parent, TPS80031_SLAVE_ID2,
-				TPS80031_CHARGERUSB_CTRL3, &ctrl3);
-	if (ret < 0) {
-		dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
-			TPS80031_CHARGERUSB_CTRL3, ret);
-		return ret;
-	}
-	if ((ctrl1 & OPA_MODE_EN) && (ctrl3 & BOOST_HW_PWR_EN))
-		return 1;
-	return ret;
-}
-
-static int tps80031_vbus_enable(struct regulator_dev *rdev)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-	int ret;
-
-	ret = tps80031_set_bits(parent, TPS80031_SLAVE_ID2,
-				TPS80031_CHARGERUSB_CTRL1, OPA_MODE_EN);
-	if (ret < 0) {
-		dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
-					TPS80031_CHARGERUSB_CTRL1, ret);
-		return ret;
-	}
-
-	ret = tps80031_set_bits(parent, TPS80031_SLAVE_ID2,
-				TPS80031_CHARGERUSB_CTRL3, BOOST_HW_PWR_EN);
-	if (ret < 0) {
-		dev_err(ri->dev, "reg 0x%02x read failed, e = %d\n",
-			TPS80031_CHARGERUSB_CTRL3, ret);
-		return ret;
-	}
-	return ret;
-}
-
-static int tps80031_vbus_disable(struct regulator_dev *rdev)
-{
-	struct tps80031_regulator *ri = rdev_get_drvdata(rdev);
-	struct device *parent = to_tps80031_dev(rdev);
-	int ret;
-
-	if (ri->config_flags & TPS80031_VBUS_DISCHRG_EN_PDN) {
-		ret = tps80031_write(parent, TPS80031_SLAVE_ID2,
-			USB_VBUS_CTRL_SET, VBUS_DISCHRG);
-		if (ret < 0) {
-			dev_err(ri->dev, "reg 0x%02x write failed, e = %d\n",
-				USB_VBUS_CTRL_SET, ret);
-			return ret;
-		}
-	}
-
-	ret = tps80031_clr_bits(parent, TPS80031_SLAVE_ID2,
-			TPS80031_CHARGERUSB_CTRL1,  OPA_MODE_EN);
-	if (ret < 0) {
-		dev_err(ri->dev, "reg 0x%02x clearbit failed, e = %d\n",
-				TPS80031_CHARGERUSB_CTRL1, ret);
-		return ret;
-	}
-
-	ret = tps80031_clr_bits(parent, TPS80031_SLAVE_ID2,
-				TPS80031_CHARGERUSB_CTRL3, BOOST_HW_PWR_EN);
-	if (ret < 0) {
-		dev_err(ri->dev, "reg 0x%02x clearbit failed, e = %d\n",
-				TPS80031_CHARGERUSB_CTRL3, ret);
-		return ret;
-	}
-
-	mdelay(DIV_ROUND_UP(ri->rinfo->desc.enable_time, 1000));
-	if (ri->config_flags & TPS80031_VBUS_DISCHRG_EN_PDN) {
-		ret = tps80031_write(parent, TPS80031_SLAVE_ID2,
-			USB_VBUS_CTRL_CLR, VBUS_DISCHRG);
-		if (ret < 0) {
-			dev_err(ri->dev, "reg 0x%02x write failed, e = %d\n",
-					USB_VBUS_CTRL_CLR, ret);
-			return ret;
-		}
-	}
-	return ret;
-}
-
-static const struct regulator_ops tps80031_dcdc_ops = {
-	.list_voltage		= tps80031_dcdc_list_voltage,
-	.set_voltage_sel	= tps80031_dcdc_set_voltage_sel,
-	.get_voltage_sel	= tps80031_dcdc_get_voltage_sel,
-	.enable		= tps80031_reg_enable,
-	.disable	= tps80031_reg_disable,
-	.is_enabled	= tps80031_reg_is_enabled,
-};
-
-static const struct regulator_ops tps80031_ldo_ops = {
-	.list_voltage		= tps80031_ldo_list_voltage,
-	.map_voltage		= tps80031_ldo_map_voltage,
-	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
-	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
-	.enable			= tps80031_reg_enable,
-	.disable		= tps80031_reg_disable,
-	.is_enabled		= tps80031_reg_is_enabled,
-};
-
-static const struct regulator_ops tps80031_vbus_sw_ops = {
-	.list_voltage	= regulator_list_voltage_linear,
-	.enable		= tps80031_vbus_enable,
-	.disable	= tps80031_vbus_disable,
-	.is_enabled	= tps80031_vbus_is_enabled,
-};
-
-static const struct regulator_ops tps80031_vbus_hw_ops = {
-	.list_voltage	= regulator_list_voltage_linear,
-};
-
-static const struct regulator_ops tps80031_ext_reg_ops = {
-	.list_voltage	= regulator_list_voltage_linear,
-	.enable		= tps80031_reg_enable,
-	.disable	= tps80031_reg_disable,
-	.is_enabled	= tps80031_reg_is_enabled,
-};
-
-/* Non-exiting default definition for some register */
-#define TPS80031_SMPS3_CFG_FORCE	0
-#define TPS80031_SMPS4_CFG_FORCE	0
-
-#define TPS80031_VBUS_CFG_TRANS		0
-#define TPS80031_VBUS_CFG_STATE		0
-
-#define TPS80031_REG_SMPS(_id, _volt_id, _pbit)	\
-{								\
-	.trans_reg = TPS80031_##_id##_CFG_TRANS,		\
-	.state_reg = TPS80031_##_id##_CFG_STATE,		\
-	.force_reg = TPS80031_##_id##_CFG_FORCE,		\
-	.volt_reg = TPS80031_##_id##_CFG_VOLTAGE,		\
-	.volt_id = TPS80031_SLAVE_##_volt_id,			\
-	.preq_bit = _pbit,					\
-	.desc = {						\
-		.name = "tps80031_"#_id,			\
-		.id = TPS80031_REGULATOR_##_id,			\
-		.n_voltages = 63,				\
-		.ops = &tps80031_dcdc_ops,			\
-		.type = REGULATOR_VOLTAGE,			\
-		.owner = THIS_MODULE,				\
-		.enable_time = 500,				\
-	},							\
-}
-
-#define TPS80031_REG_LDO(_id, _preq_bit)			\
-{								\
-	.trans_reg = TPS80031_##_id##_CFG_TRANS,		\
-	.state_reg = TPS80031_##_id##_CFG_STATE,		\
-	.volt_reg = TPS80031_##_id##_CFG_VOLTAGE,		\
-	.volt_id = TPS80031_SLAVE_ID1,				\
-	.preq_bit = _preq_bit,					\
-	.desc = {						\
-		.owner = THIS_MODULE,				\
-		.name = "tps80031_"#_id,			\
-		.id = TPS80031_REGULATOR_##_id,			\
-		.ops = &tps80031_ldo_ops,			\
-		.type = REGULATOR_VOLTAGE,			\
-		.min_uV = 1000000,				\
-		.uV_step = 100000,				\
-		.linear_min_sel = 1,				\
-		.n_voltages = 25,				\
-		.vsel_reg = TPS80031_##_id##_CFG_VOLTAGE,	\
-		.vsel_mask = LDO_VSEL_MASK,			\
-		.enable_time = 500,				\
-	},							\
-}
-
-#define TPS80031_REG_FIXED(_id, max_mV, _ops, _delay, _pbit)	\
-{								\
-	.trans_reg = TPS80031_##_id##_CFG_TRANS,		\
-	.state_reg = TPS80031_##_id##_CFG_STATE,		\
-	.volt_id = TPS80031_SLAVE_ID1,				\
-	.preq_bit = _pbit,					\
-	.desc = {						\
-		.name = "tps80031_"#_id,			\
-		.id = TPS80031_REGULATOR_##_id,			\
-		.min_uV = max_mV * 1000,			\
-		.n_voltages = 1,				\
-		.ops = &_ops,					\
-		.type = REGULATOR_VOLTAGE,			\
-		.owner = THIS_MODULE,				\
-		.enable_time = _delay,				\
-	},							\
-}
-
-static struct tps80031_regulator_info tps80031_rinfo[TPS80031_REGULATOR_MAX] = {
-	TPS80031_REG_SMPS(VIO,   ID0, 4),
-	TPS80031_REG_SMPS(SMPS1, ID0, 0),
-	TPS80031_REG_SMPS(SMPS2, ID0, 1),
-	TPS80031_REG_SMPS(SMPS3, ID1, 2),
-	TPS80031_REG_SMPS(SMPS4, ID1, 3),
-	TPS80031_REG_LDO(VANA,   -1),
-	TPS80031_REG_LDO(LDO1,   8),
-	TPS80031_REG_LDO(LDO2,   9),
-	TPS80031_REG_LDO(LDO3,   10),
-	TPS80031_REG_LDO(LDO4,   11),
-	TPS80031_REG_LDO(LDO5,   12),
-	TPS80031_REG_LDO(LDO6,   13),
-	TPS80031_REG_LDO(LDO7,   14),
-	TPS80031_REG_LDO(LDOLN,  15),
-	TPS80031_REG_LDO(LDOUSB, 5),
-	TPS80031_REG_FIXED(VBUS,   5000, tps80031_vbus_hw_ops, 100000, -1),
-	TPS80031_REG_FIXED(REGEN1, 3300, tps80031_ext_reg_ops, 0, 16),
-	TPS80031_REG_FIXED(REGEN2, 3300, tps80031_ext_reg_ops, 0, 17),
-	TPS80031_REG_FIXED(SYSEN,  3300, tps80031_ext_reg_ops, 0, 18),
-};
-
-static int tps80031_power_req_config(struct device *parent,
-		struct tps80031_regulator *ri,
-		struct tps80031_regulator_platform_data *tps80031_pdata)
-{
-	int ret = 0;
-
-	if (ri->rinfo->preq_bit < 0)
-		goto skip_pwr_req_config;
-
-	ret = tps80031_ext_power_req_config(parent, ri->ext_ctrl_flag,
-			ri->rinfo->preq_bit, ri->rinfo->state_reg,
-			ri->rinfo->trans_reg);
-	if (ret < 0) {
-		dev_err(ri->dev, "ext powerreq config failed, err = %d\n", ret);
-		return ret;
-	}
-
-skip_pwr_req_config:
-	if (tps80031_pdata->ext_ctrl_flag & TPS80031_PWR_ON_ON_SLEEP) {
-		ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
-				ri->rinfo->trans_reg, TPS80031_TRANS_SLEEP_ON,
-				TPS80031_TRANS_SLEEP_MASK);
-		if (ret < 0) {
-			dev_err(ri->dev, "Reg 0x%02x update failed, e %d\n",
-					ri->rinfo->trans_reg, ret);
-			return ret;
-		}
-	}
-	return ret;
-}
-
-static int tps80031_regulator_config(struct device *parent,
-		struct tps80031_regulator *ri,
-		struct tps80031_regulator_platform_data *tps80031_pdata)
-{
-	int ret = 0;
-
-	switch (ri->rinfo->desc.id) {
-	case TPS80031_REGULATOR_LDOUSB:
-		if (ri->config_flags & (TPS80031_USBLDO_INPUT_VSYS |
-			TPS80031_USBLDO_INPUT_PMID)) {
-			unsigned val;
-
-			if (ri->config_flags & TPS80031_USBLDO_INPUT_VSYS)
-				val = MISC2_LDOUSB_IN_VSYS;
-			else
-				val = MISC2_LDOUSB_IN_PMID;
-
-			ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
-				TPS80031_MISC2, val,
-				MISC2_LDOUSB_IN_MASK);
-			if (ret < 0) {
-				dev_err(ri->dev,
-					"LDOUSB config failed, e= %d\n", ret);
-				return ret;
-			}
-		}
-		break;
-
-	case TPS80031_REGULATOR_LDO3:
-		if (ri->config_flags & TPS80031_LDO3_OUTPUT_VIB) {
-			ret = tps80031_update(parent, TPS80031_SLAVE_ID1,
-				TPS80031_MISC2, MISC2_LDO3_SEL_VIB_VAL,
-				MISC2_LDO3_SEL_VIB_MASK);
-			if (ret < 0) {
-				dev_err(ri->dev,
-					"LDO3 config failed, e = %d\n", ret);
-				return ret;
-			}
-		}
-		break;
-
-	case TPS80031_REGULATOR_VBUS:
-		/* Provide SW control Ops if VBUS is SW control */
-		if (!(ri->config_flags & TPS80031_VBUS_SW_ONLY))
-			ri->rinfo->desc.ops = &tps80031_vbus_sw_ops;
-		break;
-	default:
-		break;
-	}
-
-	/* Configure Active state to ON, SLEEP to OFF and OFF_state to OFF */
-	ret = tps80031_update(parent, TPS80031_SLAVE_ID1, ri->rinfo->trans_reg,
-		TPS80031_TRANS_ACTIVE_ON | TPS80031_TRANS_SLEEP_OFF |
-		TPS80031_TRANS_OFF_OFF, TPS80031_TRANS_ACTIVE_MASK |
-		TPS80031_TRANS_SLEEP_MASK | TPS80031_TRANS_OFF_MASK);
-	if (ret < 0) {
-		dev_err(ri->dev, "trans reg update failed, e %d\n", ret);
-		return ret;
-	}
-
-	return ret;
-}
-
-static int check_smps_mode_mult(struct device *parent,
-	struct tps80031_regulator *ri)
-{
-	int mult_offset;
-	int ret;
-	u8 smps_offset;
-	u8 smps_mult;
-
-	ret = tps80031_read(parent, TPS80031_SLAVE_ID1,
-			TPS80031_SMPS_OFFSET, &smps_offset);
-	if (ret < 0) {
-		dev_err(parent, "Error in reading smps offset register\n");
-		return ret;
-	}
-
-	ret = tps80031_read(parent, TPS80031_SLAVE_ID1,
-			TPS80031_SMPS_MULT, &smps_mult);
-	if (ret < 0) {
-		dev_err(parent, "Error in reading smps mult register\n");
-		return ret;
-	}
-
-	switch (ri->rinfo->desc.id) {
-	case TPS80031_REGULATOR_VIO:
-		mult_offset = SMPS_MULTOFFSET_VIO;
-		break;
-	case TPS80031_REGULATOR_SMPS1:
-		mult_offset = SMPS_MULTOFFSET_SMPS1;
-		break;
-	case TPS80031_REGULATOR_SMPS2:
-		mult_offset = SMPS_MULTOFFSET_SMPS2;
-		break;
-	case TPS80031_REGULATOR_SMPS3:
-		mult_offset = SMPS_MULTOFFSET_SMPS3;
-		break;
-	case TPS80031_REGULATOR_SMPS4:
-		mult_offset = SMPS_MULTOFFSET_SMPS4;
-		break;
-	case TPS80031_REGULATOR_LDO2:
-		ri->device_flags = smps_mult & BIT(5) ? TRACK_MODE_ENABLE : 0;
-		/* TRACK mode the ldo2 varies from 600mV to 1300mV */
-		if (ri->device_flags & TRACK_MODE_ENABLE) {
-			ri->rinfo->desc.min_uV = 600000;
-			ri->rinfo->desc.uV_step = 12500;
-			ri->rinfo->desc.n_voltages = 57;
-			ri->rinfo->desc.vsel_mask = LDO_TRACK_VSEL_MASK;
-		}
-		return 0;
-	default:
-		return 0;
-	}
-
-	ri->device_flags = (smps_offset & mult_offset) ? DCDC_OFFSET_EN : 0;
-	ri->device_flags |= (smps_mult & mult_offset) ? DCDC_EXTENDED_EN : 0;
-	switch (ri->device_flags) {
-	case 0:
-		ri->rinfo->desc.min_uV = 607700;
-		ri->rinfo->desc.uV_step = 12660;
-		break;
-	case DCDC_OFFSET_EN:
-		ri->rinfo->desc.min_uV = 700000;
-		ri->rinfo->desc.uV_step = 12500;
-		break;
-	case DCDC_EXTENDED_EN:
-		ri->rinfo->desc.min_uV = 1852000;
-		ri->rinfo->desc.uV_step = 38600;
-		break;
-	case DCDC_OFFSET_EN | DCDC_EXTENDED_EN:
-		ri->rinfo->desc.min_uV = 2161000;
-		ri->rinfo->desc.uV_step = 38600;
-		break;
-	}
-	return 0;
-}
-
-static int tps80031_regulator_probe(struct platform_device *pdev)
-{
-	struct tps80031_platform_data *pdata;
-	struct tps80031_regulator_platform_data *tps_pdata;
-	struct tps80031_regulator *ri;
-	struct tps80031_regulator *pmic;
-	struct regulator_dev *rdev;
-	struct regulator_config config = { };
-	struct tps80031 *tps80031_mfd = dev_get_drvdata(pdev->dev.parent);
-	int ret;
-	int num;
-
-	pdata = dev_get_platdata(pdev->dev.parent);
-
-	if (!pdata) {
-		dev_err(&pdev->dev, "No platform data\n");
-		return -EINVAL;
-	}
-
-	pmic = devm_kcalloc(&pdev->dev,
-			TPS80031_REGULATOR_MAX, sizeof(*pmic), GFP_KERNEL);
-	if (!pmic)
-		return -ENOMEM;
-
-	for (num = 0; num < TPS80031_REGULATOR_MAX; ++num) {
-		tps_pdata = pdata->regulator_pdata[num];
-		ri = &pmic[num];
-		ri->rinfo = &tps80031_rinfo[num];
-		ri->dev = &pdev->dev;
-
-		check_smps_mode_mult(pdev->dev.parent, ri);
-		config.dev = &pdev->dev;
-		config.init_data = NULL;
-		config.driver_data = ri;
-		config.regmap = tps80031_mfd->regmap[ri->rinfo->volt_id];
-
-		if (tps_pdata) {
-			config.init_data = tps_pdata->reg_init_data;
-			ri->config_flags = tps_pdata->config_flags;
-			ri->ext_ctrl_flag = tps_pdata->ext_ctrl_flag;
-			ret = tps80031_regulator_config(pdev->dev.parent,
-					ri, tps_pdata);
-			if (ret < 0) {
-				dev_err(&pdev->dev,
-					"regulator config failed, e %d\n", ret);
-				return ret;
-			}
-
-			ret = tps80031_power_req_config(pdev->dev.parent,
-					ri, tps_pdata);
-			if (ret < 0) {
-				dev_err(&pdev->dev,
-					"pwr_req config failed, err %d\n", ret);
-				return ret;
-			}
-		}
-		rdev = devm_regulator_register(&pdev->dev, &ri->rinfo->desc,
-					       &config);
-		if (IS_ERR(rdev)) {
-			dev_err(&pdev->dev,
-				"register regulator failed %s\n",
-					ri->rinfo->desc.name);
-			return PTR_ERR(rdev);
-		}
-	}
-
-	platform_set_drvdata(pdev, pmic);
-	return 0;
-}
-
-static struct platform_driver tps80031_regulator_driver = {
-	.driver	= {
-		.name	= "tps80031-pmic",
-	},
-	.probe		= tps80031_regulator_probe,
-};
-
-static int __init tps80031_regulator_init(void)
-{
-	return platform_driver_register(&tps80031_regulator_driver);
-}
-subsys_initcall(tps80031_regulator_init);
-
-static void __exit tps80031_regulator_exit(void)
-{
-	platform_driver_unregister(&tps80031_regulator_driver);
-}
-module_exit(tps80031_regulator_exit);
-
-MODULE_ALIAS("platform:tps80031-regulator");
-MODULE_DESCRIPTION("Regulator Driver for TI TPS80031/TPS80032 PMIC");
-MODULE_AUTHOR("Laxman Dewangan <ldewangan@...dia.com>");
-MODULE_LICENSE("GPL v2");
-- 
2.32.0

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