// SPDX-License-Identifier: GPL-2.0+
  //
  // Copyright (c) 2012-2014 Samsung Electronics Co., Ltd
  //              http://www.samsung.com

  
  #include <linux/bug.h>

  #include <linux/err.h>

  #include <linux/gpio/consumer.h>

  #include <linux/slab.h>
  #include <linux/module.h>

  #include <linux/of.h>

  #include <linux/regmap.h>

  #include <linux/platform_device.h>
  #include <linux/regulator/driver.h>
  #include <linux/regulator/machine.h>

  #include <linux/regulator/of_regulator.h>

  #include <linux/mfd/samsung/core.h>
  #include <linux/mfd/samsung/s2mps11.h>

  #include <linux/mfd/samsung/s2mps13.h>

  #include <linux/mfd/samsung/s2mps14.h>

  #include <linux/mfd/samsung/s2mps15.h>

  #include <linux/mfd/samsung/s2mpu02.h>

  /* The highest number of possible regulators for supported devices. */
  #define S2MPS_REGULATOR_MAX		S2MPS13_REGULATOR_MAX

  struct s2mps11_info {

  	int ramp_delay2;
  	int ramp_delay34;
  	int ramp_delay5;
  	int ramp_delay16;
  	int ramp_delay7810;
  	int ramp_delay9;

  
  	enum sec_device_type dev_type;

  	/*

  	 * One bit for each S2MPS11/S2MPS13/S2MPS14/S2MPU02 regulator whether

  	 * the suspend mode was enabled.

  	 */

  	DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX);

  	/*
  	 * Array (size: number of regulators) with GPIO-s for external
  	 * sleep control.
  	 */

  	struct gpio_desc **ext_control_gpiod;

  };
  
  static int get_ramp_delay(int ramp_delay)
  {
  	unsigned char cnt = 0;

  	ramp_delay /= 6250;

  
  	while (true) {
  		ramp_delay = ramp_delay >> 1;
  		if (ramp_delay == 0)
  			break;
  		cnt++;
  	}

  
  	if (cnt > 3)
  		cnt = 3;

  	return cnt;
  }

  static int s2mps11_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
  				   unsigned int old_selector,
  				   unsigned int new_selector)
  {
  	struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);

  	int rdev_id = rdev_get_id(rdev);

  	unsigned int ramp_delay = 0;
  	int old_volt, new_volt;

  	switch (rdev_id) {

  	case S2MPS11_BUCK2:

  		ramp_delay = s2mps11->ramp_delay2;
  		break;
  	case S2MPS11_BUCK3:

  	case S2MPS11_BUCK4:

  		ramp_delay = s2mps11->ramp_delay34;
  		break;
  	case S2MPS11_BUCK5:
  		ramp_delay = s2mps11->ramp_delay5;
  		break;
  	case S2MPS11_BUCK6:

  	case S2MPS11_BUCK1:
  		ramp_delay = s2mps11->ramp_delay16;
  		break;
  	case S2MPS11_BUCK7:
  	case S2MPS11_BUCK8:
  	case S2MPS11_BUCK10:
  		ramp_delay = s2mps11->ramp_delay7810;
  		break;
  	case S2MPS11_BUCK9:
  		ramp_delay = s2mps11->ramp_delay9;
  	}
  
  	if (ramp_delay == 0)
  		ramp_delay = rdev->desc->ramp_delay;
  
  	old_volt = rdev->desc->min_uV + (rdev->desc->uV_step * old_selector);
  	new_volt = rdev->desc->min_uV + (rdev->desc->uV_step * new_selector);
  
  	return DIV_ROUND_UP(abs(new_volt - old_volt), ramp_delay);
  }

  static int s2mps11_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
  {
  	struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
  	unsigned int ramp_val, ramp_shift, ramp_reg = S2MPS11_REG_RAMP_BUCK;
  	unsigned int ramp_enable = 1, enable_shift = 0;

  	int rdev_id = rdev_get_id(rdev);

  	int ret;

  	switch (rdev_id) {

  	case S2MPS11_BUCK1:
  		if (ramp_delay > s2mps11->ramp_delay16)
  			s2mps11->ramp_delay16 = ramp_delay;
  		else
  			ramp_delay = s2mps11->ramp_delay16;
  
  		ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
  		break;
  	case S2MPS11_BUCK2:
  		enable_shift = S2MPS11_BUCK2_RAMP_EN_SHIFT;
  		if (!ramp_delay) {
  			ramp_enable = 0;
  			break;
  		}
  
  		s2mps11->ramp_delay2 = ramp_delay;
  		ramp_shift = S2MPS11_BUCK2_RAMP_SHIFT;
  		ramp_reg = S2MPS11_REG_RAMP;
  		break;
  	case S2MPS11_BUCK3:
  		enable_shift = S2MPS11_BUCK3_RAMP_EN_SHIFT;
  		if (!ramp_delay) {
  			ramp_enable = 0;
  			break;
  		}
  
  		if (ramp_delay > s2mps11->ramp_delay34)
  			s2mps11->ramp_delay34 = ramp_delay;
  		else
  			ramp_delay = s2mps11->ramp_delay34;
  
  		ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
  		ramp_reg = S2MPS11_REG_RAMP;
  		break;
  	case S2MPS11_BUCK4:
  		enable_shift = S2MPS11_BUCK4_RAMP_EN_SHIFT;
  		if (!ramp_delay) {
  			ramp_enable = 0;
  			break;
  		}
  
  		if (ramp_delay > s2mps11->ramp_delay34)
  			s2mps11->ramp_delay34 = ramp_delay;
  		else
  			ramp_delay = s2mps11->ramp_delay34;
  
  		ramp_shift = S2MPS11_BUCK34_RAMP_SHIFT;
  		ramp_reg = S2MPS11_REG_RAMP;
  		break;
  	case S2MPS11_BUCK5:
  		s2mps11->ramp_delay5 = ramp_delay;
  		ramp_shift = S2MPS11_BUCK5_RAMP_SHIFT;
  		break;
  	case S2MPS11_BUCK6:
  		enable_shift = S2MPS11_BUCK6_RAMP_EN_SHIFT;
  		if (!ramp_delay) {
  			ramp_enable = 0;
  			break;
  		}
  
  		if (ramp_delay > s2mps11->ramp_delay16)
  			s2mps11->ramp_delay16 = ramp_delay;
  		else
  			ramp_delay = s2mps11->ramp_delay16;
  
  		ramp_shift = S2MPS11_BUCK16_RAMP_SHIFT;
  		break;
  	case S2MPS11_BUCK7:
  	case S2MPS11_BUCK8:
  	case S2MPS11_BUCK10:
  		if (ramp_delay > s2mps11->ramp_delay7810)
  			s2mps11->ramp_delay7810 = ramp_delay;
  		else
  			ramp_delay = s2mps11->ramp_delay7810;
  
  		ramp_shift = S2MPS11_BUCK7810_RAMP_SHIFT;
  		break;
  	case S2MPS11_BUCK9:
  		s2mps11->ramp_delay9 = ramp_delay;
  		ramp_shift = S2MPS11_BUCK9_RAMP_SHIFT;
  		break;
  	default:
  		return 0;
  	}
  
  	if (!ramp_enable)
  		goto ramp_disable;

  	/* Ramp delay can be enabled/disabled only for buck[2346] */

  	if ((rdev_id >= S2MPS11_BUCK2 && rdev_id <= S2MPS11_BUCK4) ||
  	    rdev_id == S2MPS11_BUCK6)  {

  		ret = regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
  					 1 << enable_shift, 1 << enable_shift);
  		if (ret) {
  			dev_err(&rdev->dev, "failed to enable ramp rate
  ");
  			return ret;
  		}

  	}
  
  	ramp_val = get_ramp_delay(ramp_delay);

  	return regmap_update_bits(rdev->regmap, ramp_reg, 0x3 << ramp_shift,
  				  ramp_val << ramp_shift);

  
  ramp_disable:

  	return regmap_update_bits(rdev->regmap, S2MPS11_REG_RAMP,
  				  1 << enable_shift, 0);

  }

  static int s2mps11_regulator_enable(struct regulator_dev *rdev)
  {
  	struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
  	int rdev_id = rdev_get_id(rdev);
  	unsigned int val;
  
  	switch (s2mps11->dev_type) {
  	case S2MPS11X:
  		if (test_bit(rdev_id, s2mps11->suspend_state))
  			val = S2MPS14_ENABLE_SUSPEND;
  		else
  			val = rdev->desc->enable_mask;
  		break;
  	case S2MPS13X:
  	case S2MPS14X:
  		if (test_bit(rdev_id, s2mps11->suspend_state))
  			val = S2MPS14_ENABLE_SUSPEND;
  		else if (s2mps11->ext_control_gpiod[rdev_id])
  			val = S2MPS14_ENABLE_EXT_CONTROL;
  		else
  			val = rdev->desc->enable_mask;
  		break;
  	case S2MPU02:
  		if (test_bit(rdev_id, s2mps11->suspend_state))
  			val = S2MPU02_ENABLE_SUSPEND;
  		else
  			val = rdev->desc->enable_mask;
  		break;
  	default:
  		return -EINVAL;
  	}
  
  	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
  			rdev->desc->enable_mask, val);
  }
  
  static int s2mps11_regulator_set_suspend_disable(struct regulator_dev *rdev)
  {
  	int ret;
  	unsigned int val, state;
  	struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev);
  	int rdev_id = rdev_get_id(rdev);
  
  	/* Below LDO should be always on or does not support suspend mode. */
  	switch (s2mps11->dev_type) {
  	case S2MPS11X:
  		switch (rdev_id) {
  		case S2MPS11_LDO2:
  		case S2MPS11_LDO36:
  		case S2MPS11_LDO37:
  		case S2MPS11_LDO38:
  			return 0;
  		default:
  			state = S2MPS14_ENABLE_SUSPEND;
  			break;
  		}
  		break;
  	case S2MPS13X:
  	case S2MPS14X:
  		switch (rdev_id) {
  		case S2MPS14_LDO3:
  			return 0;
  		default:
  			state = S2MPS14_ENABLE_SUSPEND;
  			break;
  		}
  		break;
  	case S2MPU02:
  		switch (rdev_id) {
  		case S2MPU02_LDO13:
  		case S2MPU02_LDO14:
  		case S2MPU02_LDO15:
  		case S2MPU02_LDO17:
  		case S2MPU02_BUCK7:
  			state = S2MPU02_DISABLE_SUSPEND;
  			break;
  		default:
  			state = S2MPU02_ENABLE_SUSPEND;
  			break;
  		}
  		break;
  	default:
  		return -EINVAL;
  	}
  
  	ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
  	if (ret < 0)
  		return ret;
  
  	set_bit(rdev_id, s2mps11->suspend_state);
  	/*
  	 * Don't enable suspend mode if regulator is already disabled because
  	 * this would effectively for a short time turn on the regulator after
  	 * resuming.
  	 * However we still want to toggle the suspend_state bit for regulator
  	 * in case if it got enabled before suspending the system.
  	 */
  	if (!(val & rdev->desc->enable_mask))
  		return 0;
  
  	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
  				  rdev->desc->enable_mask, state);
  }

  static const struct regulator_ops s2mps11_ldo_ops = {

  	.list_voltage		= regulator_list_voltage_linear,
  	.map_voltage		= regulator_map_voltage_linear,
  	.is_enabled		= regulator_is_enabled_regmap,

  	.enable			= s2mps11_regulator_enable,

  	.disable		= regulator_disable_regmap,
  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
  	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
  	.set_voltage_time_sel	= regulator_set_voltage_time_sel,

  	.set_suspend_disable	= s2mps11_regulator_set_suspend_disable,

  };

  static const struct regulator_ops s2mps11_buck_ops = {

  	.list_voltage		= regulator_list_voltage_linear,
  	.map_voltage		= regulator_map_voltage_linear,
  	.is_enabled		= regulator_is_enabled_regmap,

  	.enable			= s2mps11_regulator_enable,

  	.disable		= regulator_disable_regmap,
  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
  	.set_voltage_sel	= regulator_set_voltage_sel_regmap,

  	.set_voltage_time_sel	= s2mps11_regulator_set_voltage_time_sel,

  	.set_ramp_delay		= s2mps11_set_ramp_delay,

  	.set_suspend_disable	= s2mps11_regulator_set_suspend_disable,

  };

  #define regulator_desc_s2mps11_ldo(num, step) {		\

  	.name		= "LDO"#num,			\
  	.id		= S2MPS11_LDO##num,		\
  	.ops		= &s2mps11_ldo_ops,		\
  	.type		= REGULATOR_VOLTAGE,		\
  	.owner		= THIS_MODULE,			\

  	.ramp_delay	= RAMP_DELAY_12_MVUS,		\

  	.min_uV		= MIN_800_MV,			\

  	.uV_step	= step,				\

  	.n_voltages	= S2MPS11_LDO_N_VOLTAGES,	\
  	.vsel_reg	= S2MPS11_REG_L1CTRL + num - 1,	\

  	.vsel_mask	= S2MPS11_LDO_VSEL_MASK,	\

  	.enable_reg	= S2MPS11_REG_L1CTRL + num - 1,	\
  	.enable_mask	= S2MPS11_ENABLE_MASK		\
  }

  #define regulator_desc_s2mps11_buck1_4(num) {			\

  	.name		= "BUCK"#num,				\
  	.id		= S2MPS11_BUCK##num,			\
  	.ops		= &s2mps11_buck_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\

  	.min_uV		= MIN_650_MV,				\

  	.uV_step	= STEP_6_25_MV,				\

  	.linear_min_sel	= 8,					\
  	.n_voltages	= S2MPS11_BUCK12346_N_VOLTAGES,		\

  	.ramp_delay	= S2MPS11_RAMP_DELAY,			\

  	.vsel_reg	= S2MPS11_REG_B1CTRL2 + (num - 1) * 2,	\

  	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK,		\

  	.enable_reg	= S2MPS11_REG_B1CTRL1 + (num - 1) * 2,	\
  	.enable_mask	= S2MPS11_ENABLE_MASK			\
  }

  #define regulator_desc_s2mps11_buck5 {				\

  	.name		= "BUCK5",				\
  	.id		= S2MPS11_BUCK5,			\
  	.ops		= &s2mps11_buck_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\

  	.min_uV		= MIN_650_MV,				\

  	.uV_step	= STEP_6_25_MV,				\

  	.linear_min_sel	= 8,					\
  	.n_voltages	= S2MPS11_BUCK5_N_VOLTAGES,		\

  	.ramp_delay	= S2MPS11_RAMP_DELAY,			\

  	.vsel_reg	= S2MPS11_REG_B5CTRL2,			\

  	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK,		\

  	.enable_reg	= S2MPS11_REG_B5CTRL1,			\
  	.enable_mask	= S2MPS11_ENABLE_MASK			\
  }

  #define regulator_desc_s2mps11_buck67810(num, min, step, min_sel, voltages) {	\

  	.name		= "BUCK"#num,				\
  	.id		= S2MPS11_BUCK##num,			\
  	.ops		= &s2mps11_buck_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\

  	.min_uV		= min,					\
  	.uV_step	= step,					\

  	.linear_min_sel	= min_sel,				\
  	.n_voltages	= voltages,				\

  	.ramp_delay	= S2MPS11_RAMP_DELAY,			\

  	.vsel_reg	= S2MPS11_REG_B6CTRL2 + (num - 6) * 2,	\

  	.vsel_mask	= S2MPS11_BUCK_VSEL_MASK,		\

  	.enable_reg	= S2MPS11_REG_B6CTRL1 + (num - 6) * 2,	\
  	.enable_mask	= S2MPS11_ENABLE_MASK			\
  }

  #define regulator_desc_s2mps11_buck9 {				\
  	.name		= "BUCK9",				\
  	.id		= S2MPS11_BUCK9,			\
  	.ops		= &s2mps11_buck_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= MIN_3000_MV,				\
  	.uV_step	= STEP_25_MV,				\
  	.n_voltages	= S2MPS11_BUCK9_N_VOLTAGES,		\
  	.ramp_delay	= S2MPS11_RAMP_DELAY,			\
  	.vsel_reg	= S2MPS11_REG_B9CTRL2,			\
  	.vsel_mask	= S2MPS11_BUCK9_VSEL_MASK,		\
  	.enable_reg	= S2MPS11_REG_B9CTRL1,			\
  	.enable_mask	= S2MPS11_ENABLE_MASK			\
  }

  static const struct regulator_desc s2mps11_regulators[] = {

  	regulator_desc_s2mps11_ldo(1, STEP_25_MV),
  	regulator_desc_s2mps11_ldo(2, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(3, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(4, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(5, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(6, STEP_25_MV),
  	regulator_desc_s2mps11_ldo(7, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(8, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(9, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(10, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(11, STEP_25_MV),
  	regulator_desc_s2mps11_ldo(12, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(13, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(14, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(15, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(16, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(17, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(18, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(19, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(20, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(21, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(22, STEP_25_MV),
  	regulator_desc_s2mps11_ldo(23, STEP_25_MV),
  	regulator_desc_s2mps11_ldo(24, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(25, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(26, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(27, STEP_25_MV),
  	regulator_desc_s2mps11_ldo(28, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(29, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(30, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(31, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(32, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(33, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(34, STEP_50_MV),

  	regulator_desc_s2mps11_ldo(35, STEP_25_MV),

  	regulator_desc_s2mps11_ldo(36, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(37, STEP_50_MV),
  	regulator_desc_s2mps11_ldo(38, STEP_50_MV),

  	regulator_desc_s2mps11_buck1_4(1),
  	regulator_desc_s2mps11_buck1_4(2),
  	regulator_desc_s2mps11_buck1_4(3),
  	regulator_desc_s2mps11_buck1_4(4),
  	regulator_desc_s2mps11_buck5,

  	regulator_desc_s2mps11_buck67810(6, MIN_650_MV, STEP_6_25_MV, 8,
  					 S2MPS11_BUCK12346_N_VOLTAGES),
  	regulator_desc_s2mps11_buck67810(7, MIN_750_MV, STEP_12_5_MV, 0,
  					 S2MPS11_BUCK7810_N_VOLTAGES),
  	regulator_desc_s2mps11_buck67810(8, MIN_750_MV, STEP_12_5_MV, 0,
  					 S2MPS11_BUCK7810_N_VOLTAGES),

  	regulator_desc_s2mps11_buck9,

  	regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV, 0,
  					 S2MPS11_BUCK7810_N_VOLTAGES),

  };

  static const struct regulator_ops s2mps14_reg_ops;

  
  #define regulator_desc_s2mps13_ldo(num, min, step, min_sel) {	\
  	.name		= "LDO"#num,				\
  	.id		= S2MPS13_LDO##num,			\
  	.ops		= &s2mps14_reg_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= min,					\
  	.uV_step	= step,					\
  	.linear_min_sel	= min_sel,				\
  	.n_voltages	= S2MPS14_LDO_N_VOLTAGES,		\
  	.vsel_reg	= S2MPS13_REG_L1CTRL + num - 1,		\
  	.vsel_mask	= S2MPS14_LDO_VSEL_MASK,		\
  	.enable_reg	= S2MPS13_REG_L1CTRL + num - 1,		\
  	.enable_mask	= S2MPS14_ENABLE_MASK			\
  }
  
  #define regulator_desc_s2mps13_buck(num, min, step, min_sel) {	\
  	.name		= "BUCK"#num,				\
  	.id		= S2MPS13_BUCK##num,			\
  	.ops		= &s2mps14_reg_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= min,					\
  	.uV_step	= step,					\
  	.linear_min_sel	= min_sel,				\
  	.n_voltages	= S2MPS14_BUCK_N_VOLTAGES,		\
  	.ramp_delay	= S2MPS13_BUCK_RAMP_DELAY,		\
  	.vsel_reg	= S2MPS13_REG_B1OUT + (num - 1) * 2,	\
  	.vsel_mask	= S2MPS14_BUCK_VSEL_MASK,		\
  	.enable_reg	= S2MPS13_REG_B1CTRL + (num - 1) * 2,	\
  	.enable_mask	= S2MPS14_ENABLE_MASK			\
  }

  #define regulator_desc_s2mps13_buck7(num, min, step, min_sel) {	\
  	.name		= "BUCK"#num,				\
  	.id		= S2MPS13_BUCK##num,			\
  	.ops		= &s2mps14_reg_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= min,					\
  	.uV_step	= step,					\
  	.linear_min_sel	= min_sel,				\
  	.n_voltages	= S2MPS14_BUCK_N_VOLTAGES,		\
  	.ramp_delay	= S2MPS13_BUCK_RAMP_DELAY,		\
  	.vsel_reg	= S2MPS13_REG_B1OUT + (num) * 2 - 1,	\
  	.vsel_mask	= S2MPS14_BUCK_VSEL_MASK,		\
  	.enable_reg	= S2MPS13_REG_B1CTRL + (num - 1) * 2,	\
  	.enable_mask	= S2MPS14_ENABLE_MASK			\
  }
  
  #define regulator_desc_s2mps13_buck8_10(num, min, step, min_sel) {	\
  	.name		= "BUCK"#num,				\
  	.id		= S2MPS13_BUCK##num,			\
  	.ops		= &s2mps14_reg_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= min,					\
  	.uV_step	= step,					\
  	.linear_min_sel	= min_sel,				\
  	.n_voltages	= S2MPS14_BUCK_N_VOLTAGES,		\
  	.ramp_delay	= S2MPS13_BUCK_RAMP_DELAY,		\
  	.vsel_reg	= S2MPS13_REG_B1OUT + (num) * 2 - 1,	\
  	.vsel_mask	= S2MPS14_BUCK_VSEL_MASK,		\
  	.enable_reg	= S2MPS13_REG_B1CTRL + (num) * 2 - 1,	\
  	.enable_mask	= S2MPS14_ENABLE_MASK			\
  }

  static const struct regulator_desc s2mps13_regulators[] = {
  	regulator_desc_s2mps13_ldo(1,  MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(2,  MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(3,  MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(4,  MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(5,  MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(6,  MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(7,  MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(8,  MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(9,  MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(11, MIN_800_MV,  STEP_25_MV,   0x10),
  	regulator_desc_s2mps13_ldo(12, MIN_800_MV,  STEP_25_MV,   0x10),
  	regulator_desc_s2mps13_ldo(13, MIN_800_MV,  STEP_25_MV,   0x10),
  	regulator_desc_s2mps13_ldo(14, MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(15, MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(23, MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(24, MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(36, MIN_800_MV,  STEP_12_5_MV, 0x00),
  	regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV,   0x08),
  	regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV,   0x0C),
  	regulator_desc_s2mps13_buck(1,  MIN_500_MV,  STEP_6_25_MV, 0x10),
  	regulator_desc_s2mps13_buck(2,  MIN_500_MV,  STEP_6_25_MV, 0x10),
  	regulator_desc_s2mps13_buck(3,  MIN_500_MV,  STEP_6_25_MV, 0x10),
  	regulator_desc_s2mps13_buck(4,  MIN_500_MV,  STEP_6_25_MV, 0x10),
  	regulator_desc_s2mps13_buck(5,  MIN_500_MV,  STEP_6_25_MV, 0x10),
  	regulator_desc_s2mps13_buck(6,  MIN_500_MV,  STEP_6_25_MV, 0x10),

  	regulator_desc_s2mps13_buck7(7,  MIN_500_MV,  STEP_6_25_MV, 0x10),
  	regulator_desc_s2mps13_buck8_10(8,  MIN_1000_MV, STEP_12_5_MV, 0x20),
  	regulator_desc_s2mps13_buck8_10(9,  MIN_1000_MV, STEP_12_5_MV, 0x20),
  	regulator_desc_s2mps13_buck8_10(10, MIN_500_MV,  STEP_6_25_MV, 0x10),

  };

  static const struct regulator_ops s2mps14_reg_ops = {

  	.list_voltage		= regulator_list_voltage_linear,
  	.map_voltage		= regulator_map_voltage_linear,
  	.is_enabled		= regulator_is_enabled_regmap,

  	.enable			= s2mps11_regulator_enable,

  	.disable		= regulator_disable_regmap,
  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
  	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
  	.set_voltage_time_sel	= regulator_set_voltage_time_sel,

  	.set_suspend_disable	= s2mps11_regulator_set_suspend_disable,

  };

  #define regulator_desc_s2mps14_ldo(num, min, step) {	\

  	.name		= "LDO"#num,			\
  	.id		= S2MPS14_LDO##num,		\
  	.ops		= &s2mps14_reg_ops,		\
  	.type		= REGULATOR_VOLTAGE,		\
  	.owner		= THIS_MODULE,			\

  	.min_uV		= min,				\
  	.uV_step	= step,				\

  	.n_voltages	= S2MPS14_LDO_N_VOLTAGES,	\
  	.vsel_reg	= S2MPS14_REG_L1CTRL + num - 1,	\
  	.vsel_mask	= S2MPS14_LDO_VSEL_MASK,	\
  	.enable_reg	= S2MPS14_REG_L1CTRL + num - 1,	\
  	.enable_mask	= S2MPS14_ENABLE_MASK		\
  }

  #define regulator_desc_s2mps14_buck(num, min, step, min_sel) {	\

  	.name		= "BUCK"#num,				\
  	.id		= S2MPS14_BUCK##num,			\
  	.ops		= &s2mps14_reg_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\

  	.min_uV		= min,					\
  	.uV_step	= step,					\

  	.n_voltages	= S2MPS14_BUCK_N_VOLTAGES,		\

  	.linear_min_sel = min_sel,				\

  	.ramp_delay	= S2MPS14_BUCK_RAMP_DELAY,		\
  	.vsel_reg	= S2MPS14_REG_B1CTRL2 + (num - 1) * 2,	\
  	.vsel_mask	= S2MPS14_BUCK_VSEL_MASK,		\
  	.enable_reg	= S2MPS14_REG_B1CTRL1 + (num - 1) * 2,	\
  	.enable_mask	= S2MPS14_ENABLE_MASK			\
  }

  
  static const struct regulator_desc s2mps14_regulators[] = {

  	regulator_desc_s2mps14_ldo(1, MIN_800_MV, STEP_12_5_MV),
  	regulator_desc_s2mps14_ldo(2, MIN_800_MV, STEP_12_5_MV),
  	regulator_desc_s2mps14_ldo(3, MIN_800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(4, MIN_800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(5, MIN_800_MV, STEP_12_5_MV),
  	regulator_desc_s2mps14_ldo(6, MIN_800_MV, STEP_12_5_MV),
  	regulator_desc_s2mps14_ldo(7, MIN_800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(8, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(9, MIN_800_MV, STEP_12_5_MV),
  	regulator_desc_s2mps14_ldo(10, MIN_800_MV, STEP_12_5_MV),
  	regulator_desc_s2mps14_ldo(11, MIN_800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(12, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(13, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(14, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(15, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(16, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(17, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(18, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(19, MIN_800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(20, MIN_800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(21, MIN_800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(22, MIN_800_MV, STEP_12_5_MV),
  	regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
  	regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),

  	regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV,
  				    S2MPS14_BUCK1235_START_SEL),
  	regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV,
  				    S2MPS14_BUCK1235_START_SEL),
  	regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV,
  				    S2MPS14_BUCK1235_START_SEL),
  	regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV,
  				    S2MPS14_BUCK4_START_SEL),
  	regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV,
  				    S2MPS14_BUCK1235_START_SEL),

  };

  static const struct regulator_ops s2mps15_reg_ldo_ops = {

  	.list_voltage		= regulator_list_voltage_linear_range,
  	.map_voltage		= regulator_map_voltage_linear_range,
  	.is_enabled		= regulator_is_enabled_regmap,
  	.enable			= regulator_enable_regmap,
  	.disable		= regulator_disable_regmap,
  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
  	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
  };

  static const struct regulator_ops s2mps15_reg_buck_ops = {

  	.list_voltage		= regulator_list_voltage_linear_range,
  	.map_voltage		= regulator_map_voltage_linear_range,
  	.is_enabled		= regulator_is_enabled_regmap,
  	.enable			= regulator_enable_regmap,
  	.disable		= regulator_disable_regmap,
  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
  	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
  	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
  };
  
  #define regulator_desc_s2mps15_ldo(num, range) {	\
  	.name		= "LDO"#num,			\
  	.id		= S2MPS15_LDO##num,		\
  	.ops		= &s2mps15_reg_ldo_ops,		\
  	.type		= REGULATOR_VOLTAGE,		\
  	.owner		= THIS_MODULE,			\
  	.linear_ranges	= range,			\
  	.n_linear_ranges = ARRAY_SIZE(range),		\
  	.n_voltages	= S2MPS15_LDO_N_VOLTAGES,	\
  	.vsel_reg	= S2MPS15_REG_L1CTRL + num - 1,	\
  	.vsel_mask	= S2MPS15_LDO_VSEL_MASK,	\
  	.enable_reg	= S2MPS15_REG_L1CTRL + num - 1,	\
  	.enable_mask	= S2MPS15_ENABLE_MASK		\
  }
  
  #define regulator_desc_s2mps15_buck(num, range) {			\
  	.name		= "BUCK"#num,					\
  	.id		= S2MPS15_BUCK##num,				\
  	.ops		= &s2mps15_reg_buck_ops,			\
  	.type		= REGULATOR_VOLTAGE,				\
  	.owner		= THIS_MODULE,					\
  	.linear_ranges	= range,					\
  	.n_linear_ranges = ARRAY_SIZE(range),				\
  	.ramp_delay	= 12500,					\
  	.n_voltages	= S2MPS15_BUCK_N_VOLTAGES,			\
  	.vsel_reg	= S2MPS15_REG_B1CTRL2 + ((num - 1) * 2),	\
  	.vsel_mask	= S2MPS15_BUCK_VSEL_MASK,			\
  	.enable_reg	= S2MPS15_REG_B1CTRL1 + ((num - 1) * 2),	\
  	.enable_mask	= S2MPS15_ENABLE_MASK				\
  }
  
  /* voltage range for s2mps15 LDO 3, 5, 15, 16, 18, 20, 23 and 27 */

  static const struct linear_range s2mps15_ldo_voltage_ranges1[] = {

  	REGULATOR_LINEAR_RANGE(1000000, 0xc, 0x38, 25000),
  };
  
  /* voltage range for s2mps15 LDO 2, 6, 14, 17, 19, 21, 24 and 25 */

  static const struct linear_range s2mps15_ldo_voltage_ranges2[] = {

  	REGULATOR_LINEAR_RANGE(1800000, 0x0, 0x3f, 25000),
  };
  
  /* voltage range for s2mps15 LDO 4, 11, 12, 13, 22 and 26 */

  static const struct linear_range s2mps15_ldo_voltage_ranges3[] = {

  	REGULATOR_LINEAR_RANGE(700000, 0x0, 0x34, 12500),
  };
  
  /* voltage range for s2mps15 LDO 7, 8, 9 and 10 */

  static const struct linear_range s2mps15_ldo_voltage_ranges4[] = {

  	REGULATOR_LINEAR_RANGE(700000, 0x10, 0x20, 25000),

  };
  
  /* voltage range for s2mps15 LDO 1 */

  static const struct linear_range s2mps15_ldo_voltage_ranges5[] = {

  	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x20, 12500),
  };
  
  /* voltage range for s2mps15 BUCK 1, 2, 3, 4, 5, 6 and 7 */

  static const struct linear_range s2mps15_buck_voltage_ranges1[] = {

  	REGULATOR_LINEAR_RANGE(500000, 0x20, 0xc0, 6250),

  };
  
  /* voltage range for s2mps15 BUCK 8, 9 and 10 */

  static const struct linear_range s2mps15_buck_voltage_ranges2[] = {

  	REGULATOR_LINEAR_RANGE(1000000, 0x20, 0x78, 12500),

  };
  
  static const struct regulator_desc s2mps15_regulators[] = {
  	regulator_desc_s2mps15_ldo(1, s2mps15_ldo_voltage_ranges5),
  	regulator_desc_s2mps15_ldo(2, s2mps15_ldo_voltage_ranges2),
  	regulator_desc_s2mps15_ldo(3, s2mps15_ldo_voltage_ranges1),
  	regulator_desc_s2mps15_ldo(4, s2mps15_ldo_voltage_ranges3),
  	regulator_desc_s2mps15_ldo(5, s2mps15_ldo_voltage_ranges1),
  	regulator_desc_s2mps15_ldo(6, s2mps15_ldo_voltage_ranges2),
  	regulator_desc_s2mps15_ldo(7, s2mps15_ldo_voltage_ranges4),
  	regulator_desc_s2mps15_ldo(8, s2mps15_ldo_voltage_ranges4),
  	regulator_desc_s2mps15_ldo(9, s2mps15_ldo_voltage_ranges4),
  	regulator_desc_s2mps15_ldo(10, s2mps15_ldo_voltage_ranges4),
  	regulator_desc_s2mps15_ldo(11, s2mps15_ldo_voltage_ranges3),
  	regulator_desc_s2mps15_ldo(12, s2mps15_ldo_voltage_ranges3),
  	regulator_desc_s2mps15_ldo(13, s2mps15_ldo_voltage_ranges3),
  	regulator_desc_s2mps15_ldo(14, s2mps15_ldo_voltage_ranges2),
  	regulator_desc_s2mps15_ldo(15, s2mps15_ldo_voltage_ranges1),
  	regulator_desc_s2mps15_ldo(16, s2mps15_ldo_voltage_ranges1),
  	regulator_desc_s2mps15_ldo(17, s2mps15_ldo_voltage_ranges2),
  	regulator_desc_s2mps15_ldo(18, s2mps15_ldo_voltage_ranges1),
  	regulator_desc_s2mps15_ldo(19, s2mps15_ldo_voltage_ranges2),
  	regulator_desc_s2mps15_ldo(20, s2mps15_ldo_voltage_ranges1),
  	regulator_desc_s2mps15_ldo(21, s2mps15_ldo_voltage_ranges2),
  	regulator_desc_s2mps15_ldo(22, s2mps15_ldo_voltage_ranges3),
  	regulator_desc_s2mps15_ldo(23, s2mps15_ldo_voltage_ranges1),
  	regulator_desc_s2mps15_ldo(24, s2mps15_ldo_voltage_ranges2),
  	regulator_desc_s2mps15_ldo(25, s2mps15_ldo_voltage_ranges2),
  	regulator_desc_s2mps15_ldo(26, s2mps15_ldo_voltage_ranges3),
  	regulator_desc_s2mps15_ldo(27, s2mps15_ldo_voltage_ranges1),
  	regulator_desc_s2mps15_buck(1, s2mps15_buck_voltage_ranges1),
  	regulator_desc_s2mps15_buck(2, s2mps15_buck_voltage_ranges1),
  	regulator_desc_s2mps15_buck(3, s2mps15_buck_voltage_ranges1),
  	regulator_desc_s2mps15_buck(4, s2mps15_buck_voltage_ranges1),
  	regulator_desc_s2mps15_buck(5, s2mps15_buck_voltage_ranges1),
  	regulator_desc_s2mps15_buck(6, s2mps15_buck_voltage_ranges1),
  	regulator_desc_s2mps15_buck(7, s2mps15_buck_voltage_ranges1),
  	regulator_desc_s2mps15_buck(8, s2mps15_buck_voltage_ranges2),
  	regulator_desc_s2mps15_buck(9, s2mps15_buck_voltage_ranges2),
  	regulator_desc_s2mps15_buck(10, s2mps15_buck_voltage_ranges2),
  };

  static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
  		struct regulator_dev *rdev)
  {
  	return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
  			rdev->desc->enable_mask, S2MPS14_ENABLE_EXT_CONTROL);
  }
  
  static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev,

  		struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
  {

  	struct gpio_desc **gpio = s2mps11->ext_control_gpiod;

  	unsigned int i;
  	unsigned int valid_regulators[3] = { S2MPS14_LDO10, S2MPS14_LDO11,
  		S2MPS14_LDO12 };
  
  	for (i = 0; i < ARRAY_SIZE(valid_regulators); i++) {
  		unsigned int reg = valid_regulators[i];
  
  		if (!rdata[reg].init_data || !rdata[reg].of_node)
  			continue;

  		gpio[reg] = devm_fwnode_gpiod_get(&pdev->dev,
  				of_fwnode_handle(rdata[reg].of_node),
  				"samsung,ext-control",

  				GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE,
  				"s2mps11-regulator");

  		if (PTR_ERR(gpio[reg]) == -ENOENT)
  			gpio[reg] = NULL;
  		else if (IS_ERR(gpio[reg])) {

  			dev_err(&pdev->dev, "Failed to get control GPIO for %d/%s
  ",
  				reg, rdata[reg].name);

  			gpio[reg] = NULL;

  			continue;
  		}
  		if (gpio[reg])
  			dev_dbg(&pdev->dev, "Using GPIO for ext-control over %d/%s
  ",
  				reg, rdata[reg].name);

  	}
  }
  
  static int s2mps11_pmic_dt_parse(struct platform_device *pdev,

  		struct of_regulator_match *rdata, struct s2mps11_info *s2mps11,
  		unsigned int rdev_num)

  {

  	struct device_node *reg_np;
  
  	reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
  	if (!reg_np) {
  		dev_err(&pdev->dev, "could not find regulators sub-node
  ");
  		return -EINVAL;
  	}

  	of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num);

  	if (s2mps11->dev_type == S2MPS14X)

  		s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11);

  	of_node_put(reg_np);
  
  	return 0;
  }

  static int s2mpu02_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
  {
  	unsigned int ramp_val, ramp_shift, ramp_reg;

  	int rdev_id = rdev_get_id(rdev);

  	switch (rdev_id) {

  	case S2MPU02_BUCK1:
  		ramp_shift = S2MPU02_BUCK1_RAMP_SHIFT;
  		break;
  	case S2MPU02_BUCK2:
  		ramp_shift = S2MPU02_BUCK2_RAMP_SHIFT;
  		break;
  	case S2MPU02_BUCK3:
  		ramp_shift = S2MPU02_BUCK3_RAMP_SHIFT;
  		break;
  	case S2MPU02_BUCK4:
  		ramp_shift = S2MPU02_BUCK4_RAMP_SHIFT;
  		break;
  	default:
  		return 0;
  	}
  	ramp_reg = S2MPU02_REG_RAMP1;
  	ramp_val = get_ramp_delay(ramp_delay);
  
  	return regmap_update_bits(rdev->regmap, ramp_reg,
  				  S2MPU02_BUCK1234_RAMP_MASK << ramp_shift,
  				  ramp_val << ramp_shift);
  }

  static const struct regulator_ops s2mpu02_ldo_ops = {

  	.list_voltage		= regulator_list_voltage_linear,
  	.map_voltage		= regulator_map_voltage_linear,
  	.is_enabled		= regulator_is_enabled_regmap,

  	.enable			= s2mps11_regulator_enable,

  	.disable		= regulator_disable_regmap,
  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
  	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
  	.set_voltage_time_sel	= regulator_set_voltage_time_sel,

  	.set_suspend_disable	= s2mps11_regulator_set_suspend_disable,

  };

  static const struct regulator_ops s2mpu02_buck_ops = {

  	.list_voltage		= regulator_list_voltage_linear,
  	.map_voltage		= regulator_map_voltage_linear,
  	.is_enabled		= regulator_is_enabled_regmap,

  	.enable			= s2mps11_regulator_enable,

  	.disable		= regulator_disable_regmap,
  	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
  	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
  	.set_voltage_time_sel	= regulator_set_voltage_time_sel,

  	.set_suspend_disable	= s2mps11_regulator_set_suspend_disable,

  	.set_ramp_delay		= s2mpu02_set_ramp_delay,
  };
  
  #define regulator_desc_s2mpu02_ldo1(num) {		\
  	.name		= "LDO"#num,			\
  	.id		= S2MPU02_LDO##num,		\
  	.ops		= &s2mpu02_ldo_ops,		\
  	.type		= REGULATOR_VOLTAGE,		\
  	.owner		= THIS_MODULE,			\
  	.min_uV		= S2MPU02_LDO_MIN_900MV,	\
  	.uV_step	= S2MPU02_LDO_STEP_12_5MV,	\
  	.linear_min_sel	= S2MPU02_LDO_GROUP1_START_SEL,	\
  	.n_voltages	= S2MPU02_LDO_N_VOLTAGES,	\
  	.vsel_reg	= S2MPU02_REG_L1CTRL,		\
  	.vsel_mask	= S2MPU02_LDO_VSEL_MASK,	\
  	.enable_reg	= S2MPU02_REG_L1CTRL,		\
  	.enable_mask	= S2MPU02_ENABLE_MASK		\
  }
  #define regulator_desc_s2mpu02_ldo2(num) {		\
  	.name		= "LDO"#num,			\
  	.id		= S2MPU02_LDO##num,		\
  	.ops		= &s2mpu02_ldo_ops,		\
  	.type		= REGULATOR_VOLTAGE,		\
  	.owner		= THIS_MODULE,			\
  	.min_uV		= S2MPU02_LDO_MIN_1050MV,	\
  	.uV_step	= S2MPU02_LDO_STEP_25MV,	\
  	.linear_min_sel	= S2MPU02_LDO_GROUP2_START_SEL,	\
  	.n_voltages	= S2MPU02_LDO_N_VOLTAGES,	\
  	.vsel_reg	= S2MPU02_REG_L2CTRL1,		\
  	.vsel_mask	= S2MPU02_LDO_VSEL_MASK,	\
  	.enable_reg	= S2MPU02_REG_L2CTRL1,		\
  	.enable_mask	= S2MPU02_ENABLE_MASK		\
  }
  #define regulator_desc_s2mpu02_ldo3(num) {		\
  	.name		= "LDO"#num,			\
  	.id		= S2MPU02_LDO##num,		\
  	.ops		= &s2mpu02_ldo_ops,		\
  	.type		= REGULATOR_VOLTAGE,		\
  	.owner		= THIS_MODULE,			\
  	.min_uV		= S2MPU02_LDO_MIN_900MV,	\
  	.uV_step	= S2MPU02_LDO_STEP_12_5MV,	\
  	.linear_min_sel	= S2MPU02_LDO_GROUP1_START_SEL,	\
  	.n_voltages	= S2MPU02_LDO_N_VOLTAGES,	\
  	.vsel_reg	= S2MPU02_REG_L3CTRL + num - 3,	\
  	.vsel_mask	= S2MPU02_LDO_VSEL_MASK,	\
  	.enable_reg	= S2MPU02_REG_L3CTRL + num - 3,	\
  	.enable_mask	= S2MPU02_ENABLE_MASK		\
  }
  #define regulator_desc_s2mpu02_ldo4(num) {		\
  	.name		= "LDO"#num,			\
  	.id		= S2MPU02_LDO##num,		\
  	.ops		= &s2mpu02_ldo_ops,		\
  	.type		= REGULATOR_VOLTAGE,		\
  	.owner		= THIS_MODULE,			\
  	.min_uV		= S2MPU02_LDO_MIN_1050MV,	\
  	.uV_step	= S2MPU02_LDO_STEP_25MV,	\
  	.linear_min_sel	= S2MPU02_LDO_GROUP2_START_SEL,	\
  	.n_voltages	= S2MPU02_LDO_N_VOLTAGES,	\
  	.vsel_reg	= S2MPU02_REG_L3CTRL + num - 3,	\
  	.vsel_mask	= S2MPU02_LDO_VSEL_MASK,	\
  	.enable_reg	= S2MPU02_REG_L3CTRL + num - 3,	\
  	.enable_mask	= S2MPU02_ENABLE_MASK		\
  }
  #define regulator_desc_s2mpu02_ldo5(num) {		\
  	.name		= "LDO"#num,			\
  	.id		= S2MPU02_LDO##num,		\
  	.ops		= &s2mpu02_ldo_ops,		\
  	.type		= REGULATOR_VOLTAGE,		\
  	.owner		= THIS_MODULE,			\
  	.min_uV		= S2MPU02_LDO_MIN_1600MV,	\
  	.uV_step	= S2MPU02_LDO_STEP_50MV,	\
  	.linear_min_sel	= S2MPU02_LDO_GROUP3_START_SEL,	\
  	.n_voltages	= S2MPU02_LDO_N_VOLTAGES,	\
  	.vsel_reg	= S2MPU02_REG_L3CTRL + num - 3,	\
  	.vsel_mask	= S2MPU02_LDO_VSEL_MASK,	\
  	.enable_reg	= S2MPU02_REG_L3CTRL + num - 3,	\
  	.enable_mask	= S2MPU02_ENABLE_MASK		\
  }
  
  #define regulator_desc_s2mpu02_buck1234(num) {			\
  	.name		= "BUCK"#num,				\
  	.id		= S2MPU02_BUCK##num,			\
  	.ops		= &s2mpu02_buck_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= S2MPU02_BUCK1234_MIN_600MV,		\
  	.uV_step	= S2MPU02_BUCK1234_STEP_6_25MV,		\
  	.n_voltages	= S2MPU02_BUCK_N_VOLTAGES,		\
  	.linear_min_sel = S2MPU02_BUCK1234_START_SEL,		\
  	.ramp_delay	= S2MPU02_BUCK_RAMP_DELAY,		\
  	.vsel_reg	= S2MPU02_REG_B1CTRL2 + (num - 1) * 2,	\
  	.vsel_mask	= S2MPU02_BUCK_VSEL_MASK,		\
  	.enable_reg	= S2MPU02_REG_B1CTRL1 + (num - 1) * 2,	\
  	.enable_mask	= S2MPU02_ENABLE_MASK			\
  }
  #define regulator_desc_s2mpu02_buck5(num) {			\
  	.name		= "BUCK"#num,				\
  	.id		= S2MPU02_BUCK##num,			\
  	.ops		= &s2mpu02_ldo_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= S2MPU02_BUCK5_MIN_1081_25MV,		\
  	.uV_step	= S2MPU02_BUCK5_STEP_6_25MV,		\
  	.n_voltages	= S2MPU02_BUCK_N_VOLTAGES,		\
  	.linear_min_sel = S2MPU02_BUCK5_START_SEL,		\
  	.ramp_delay	= S2MPU02_BUCK_RAMP_DELAY,		\
  	.vsel_reg	= S2MPU02_REG_B5CTRL2,			\
  	.vsel_mask	= S2MPU02_BUCK_VSEL_MASK,		\
  	.enable_reg	= S2MPU02_REG_B5CTRL1,			\
  	.enable_mask	= S2MPU02_ENABLE_MASK			\
  }
  #define regulator_desc_s2mpu02_buck6(num) {			\
  	.name		= "BUCK"#num,				\
  	.id		= S2MPU02_BUCK##num,			\
  	.ops		= &s2mpu02_ldo_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= S2MPU02_BUCK6_MIN_1700MV,		\
  	.uV_step	= S2MPU02_BUCK6_STEP_2_50MV,		\
  	.n_voltages	= S2MPU02_BUCK_N_VOLTAGES,		\
  	.linear_min_sel = S2MPU02_BUCK6_START_SEL,		\
  	.ramp_delay	= S2MPU02_BUCK_RAMP_DELAY,		\
  	.vsel_reg	= S2MPU02_REG_B6CTRL2,			\
  	.vsel_mask	= S2MPU02_BUCK_VSEL_MASK,		\
  	.enable_reg	= S2MPU02_REG_B6CTRL1,			\
  	.enable_mask	= S2MPU02_ENABLE_MASK			\
  }
  #define regulator_desc_s2mpu02_buck7(num) {			\
  	.name		= "BUCK"#num,				\
  	.id		= S2MPU02_BUCK##num,			\
  	.ops		= &s2mpu02_ldo_ops,			\
  	.type		= REGULATOR_VOLTAGE,			\
  	.owner		= THIS_MODULE,				\
  	.min_uV		= S2MPU02_BUCK7_MIN_900MV,		\
  	.uV_step	= S2MPU02_BUCK7_STEP_6_25MV,		\
  	.n_voltages	= S2MPU02_BUCK_N_VOLTAGES,		\
  	.linear_min_sel = S2MPU02_BUCK7_START_SEL,		\
  	.ramp_delay	= S2MPU02_BUCK_RAMP_DELAY,		\
  	.vsel_reg	= S2MPU02_REG_B7CTRL2,			\
  	.vsel_mask	= S2MPU02_BUCK_VSEL_MASK,		\
  	.enable_reg	= S2MPU02_REG_B7CTRL1,			\
  	.enable_mask	= S2MPU02_ENABLE_MASK			\
  }
  
  static const struct regulator_desc s2mpu02_regulators[] = {
  	regulator_desc_s2mpu02_ldo1(1),
  	regulator_desc_s2mpu02_ldo2(2),
  	regulator_desc_s2mpu02_ldo4(3),
  	regulator_desc_s2mpu02_ldo5(4),
  	regulator_desc_s2mpu02_ldo4(5),
  	regulator_desc_s2mpu02_ldo3(6),
  	regulator_desc_s2mpu02_ldo3(7),
  	regulator_desc_s2mpu02_ldo4(8),
  	regulator_desc_s2mpu02_ldo5(9),
  	regulator_desc_s2mpu02_ldo3(10),
  	regulator_desc_s2mpu02_ldo4(11),
  	regulator_desc_s2mpu02_ldo5(12),
  	regulator_desc_s2mpu02_ldo5(13),
  	regulator_desc_s2mpu02_ldo5(14),
  	regulator_desc_s2mpu02_ldo5(15),
  	regulator_desc_s2mpu02_ldo5(16),
  	regulator_desc_s2mpu02_ldo4(17),
  	regulator_desc_s2mpu02_ldo5(18),
  	regulator_desc_s2mpu02_ldo3(19),
  	regulator_desc_s2mpu02_ldo4(20),
  	regulator_desc_s2mpu02_ldo5(21),
  	regulator_desc_s2mpu02_ldo5(22),
  	regulator_desc_s2mpu02_ldo5(23),
  	regulator_desc_s2mpu02_ldo4(24),
  	regulator_desc_s2mpu02_ldo5(25),
  	regulator_desc_s2mpu02_ldo4(26),
  	regulator_desc_s2mpu02_ldo5(27),
  	regulator_desc_s2mpu02_ldo5(28),
  	regulator_desc_s2mpu02_buck1234(1),
  	regulator_desc_s2mpu02_buck1234(2),
  	regulator_desc_s2mpu02_buck1234(3),
  	regulator_desc_s2mpu02_buck1234(4),
  	regulator_desc_s2mpu02_buck5(5),
  	regulator_desc_s2mpu02_buck6(6),
  	regulator_desc_s2mpu02_buck7(7),
  };

  static int s2mps11_pmic_probe(struct platform_device *pdev)

  {
  	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);

  	struct sec_platform_data *pdata = NULL;

  	struct of_regulator_match *rdata = NULL;

  	struct regulator_config config = { };

  	struct s2mps11_info *s2mps11;

  	unsigned int rdev_num = 0;

  	int i, ret = 0;

  	const struct regulator_desc *regulators;

  	s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
  				GFP_KERNEL);
  	if (!s2mps11)
  		return -ENOMEM;

  	s2mps11->dev_type = platform_get_device_id(pdev)->driver_data;
  	switch (s2mps11->dev_type) {

  	case S2MPS11X:

  		rdev_num = ARRAY_SIZE(s2mps11_regulators);

  		regulators = s2mps11_regulators;

  		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators));

  		break;

  	case S2MPS13X:

  		rdev_num = ARRAY_SIZE(s2mps13_regulators);

  		regulators = s2mps13_regulators;

  		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators));

  		break;

  	case S2MPS14X:

  		rdev_num = ARRAY_SIZE(s2mps14_regulators);

  		regulators = s2mps14_regulators;

  		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators));

  		break;

  	case S2MPS15X:

  		rdev_num = ARRAY_SIZE(s2mps15_regulators);

  		regulators = s2mps15_regulators;

  		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators));

  		break;

  	case S2MPU02:

  		rdev_num = ARRAY_SIZE(s2mpu02_regulators);

  		regulators = s2mpu02_regulators;

  		BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators));

  		break;

  	default:

  		dev_err(&pdev->dev, "Invalid device type: %u
  ",
  				    s2mps11->dev_type);

  		return -EINVAL;

  	}

  	s2mps11->ext_control_gpiod = devm_kcalloc(&pdev->dev, rdev_num,
  			       sizeof(*s2mps11->ext_control_gpiod), GFP_KERNEL);

  	if (!s2mps11->ext_control_gpiod)

  		return -ENOMEM;

  	if (!iodev->dev->of_node) {

  		if (iodev->pdata) {
  			pdata = iodev->pdata;

  			goto common_reg;
  		} else {
  			dev_err(pdev->dev.parent,
  				"Platform data or DT node not supplied
  ");
  			return -ENODEV;
  		}
  	}

  	rdata = kcalloc(rdev_num, sizeof(*rdata), GFP_KERNEL);

  	if (!rdata)
  		return -ENOMEM;

  	for (i = 0; i < rdev_num; i++)

  		rdata[i].name = regulators[i].name;

  	ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num);

  	if (ret)

  		goto out;

  common_reg:
  	platform_set_drvdata(pdev, s2mps11);

  	config.dev = &pdev->dev;

  	config.regmap = iodev->regmap_pmic;

  	config.driver_data = s2mps11;

  	for (i = 0; i < rdev_num; i++) {

  		struct regulator_dev *regulator;

  		if (pdata) {

  			config.init_data = pdata->regulators[i].initdata;

  			config.of_node = pdata->regulators[i].reg_node;

  		} else {
  			config.init_data = rdata[i].init_data;
  			config.of_node = rdata[i].of_node;
  		}

  		config.ena_gpiod = s2mps11->ext_control_gpiod[i];

  		/*
  		 * Hand the GPIO descriptor management over to the regulator
  		 * core, remove it from devres management.
  		 */
  		if (config.ena_gpiod)
  			devm_gpiod_unhinge(&pdev->dev, config.ena_gpiod);

  		regulator = devm_regulator_register(&pdev->dev,

  						&regulators[i], &config);

  		if (IS_ERR(regulator)) {
  			ret = PTR_ERR(regulator);

  			dev_err(&pdev->dev, "regulator init failed for %d
  ",
  				i);

  			goto out;

  		}

  		if (config.ena_gpiod) {

  			ret = s2mps14_pmic_enable_ext_control(s2mps11,
  					regulator);
  			if (ret < 0) {
  				dev_err(&pdev->dev,
  						"failed to enable GPIO control over %s: %d
  ",
  						regulator->desc->name, ret);
  				goto out;
  			}
  		}

  	}

  out:
  	kfree(rdata);
  
  	return ret;

  }
  
  static const struct platform_device_id s2mps11_pmic_id[] = {

  	{ "s2mps11-regulator", S2MPS11X},
  	{ "s2mps13-regulator", S2MPS13X},
  	{ "s2mps14-regulator", S2MPS14X},

  	{ "s2mps15-regulator", S2MPS15X},

  	{ "s2mpu02-regulator", S2MPU02},

  	{ },
  };
  MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
  
  static struct platform_driver s2mps11_pmic_driver = {
  	.driver = {
  		.name = "s2mps11-pmic",

  	},
  	.probe = s2mps11_pmic_probe,

  	.id_table = s2mps11_pmic_id,
  };

  module_platform_driver(s2mps11_pmic_driver);

  
  /* Module information */
  MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");

  MODULE_DESCRIPTION("Samsung S2MPS11/S2MPS14/S2MPS15/S2MPU02 Regulator Driver");

  MODULE_LICENSE("GPL");