drivers/power/regulator/tps65911_regulator.c - u-boot - Git at Google

 // SPDX-License-Identifier: GPL-2.0+
 /*
  *  Copyright(C) 2023 Svyatoslav Ryhel <clamor95@gmail.com>
  */

 #include <dm.h>
 #include <power/pmic.h>
 #include <power/regulator.h>
 #include <power/tps65910_pmic.h>

 /* fist row is control registers, second is voltage registers */
 static const char tps65911_vdd_reg[][TPS65911_VDD_NUM] = {
 	{ TPS65911_REG_VDD1, TPS65911_REG_VDD2,
 	  TPS65911_REG_VDDCTRL, TPS65911_REG_VIO },
 	{ TPS65911_REG_VDD1_OP, TPS65911_REG_VDD2_OP,
 	  TPS65911_REG_VDDCTRL_OP, 0x00 },
 };

 static const char tps65911_ldo_reg[TPS65911_LDO_NUM] = {
 	TPS65911_REG_LDO1, TPS65911_REG_LDO2, TPS65911_REG_LDO3,
 	TPS65911_REG_LDO4, TPS65911_REG_LDO5, TPS65911_REG_LDO6,
 	TPS65911_REG_LDO7, TPS65911_REG_LDO8
 };

 static int tps65911_regulator_enable(struct udevice *dev, int op, bool *enable)
 {
 	struct dm_regulator_uclass_plat *uc_pdata =
 					dev_get_uclass_plat(dev);
 	u32 adr = uc_pdata->ctrl_reg;
 	int val, ret;

 	val = pmic_reg_read(dev->parent, adr);
 	if (val < 0)
 		return val;

 	if (op == PMIC_OP_GET) {
 		if (val & TPS65910_SUPPLY_STATE_ON)
 			*enable = true;
 		else
 			*enable = false;

 		return 0;
 	} else if (op == PMIC_OP_SET) {
 		val &= ~TPS65910_SUPPLY_STATE_MASK;

 		if (*enable)
 			val |= TPS65910_SUPPLY_STATE_ON;

 		ret = pmic_reg_write(dev->parent, adr, val);
 		if (ret)
 			return ret;
 	}

 	return 0;
 }

 static int tps65911_get_enable(struct udevice *dev)
 {
 	bool enable = false;
 	int ret;

 	ret = tps65911_regulator_enable(dev, PMIC_OP_GET, &enable);
 	if (ret)
 		return ret;

 	return enable;
 }

 static int tps65911_set_enable(struct udevice *dev, bool enable)
 {
 	return tps65911_regulator_enable(dev, PMIC_OP_SET, &enable);
 }

 /**
  * tps65911_vdd_volt2hex() - convert voltage in uV into
  *			     applicable to register hex value
  *
  * @uV:		voltage in uV
  *
  * Return: voltage in hex on success, -ve on failure
  */
 static int tps65911_vdd_volt2hex(int uV)
 {
 	if (uV > TPS65911_VDD_VOLT_MAX)
 		return -EINVAL;

 	if (uV < TPS65911_VDD_VOLT_MIN)
 		uV = TPS65911_VDD_VOLT_MIN;

 	return (uV - TPS65911_VDD_VOLT_BASE) / 12500;
 }

 /**
  * tps65911_vdd_hex2volt() - convert register hex value into
  *			     actual voltage in uV
  *
  * @hex:	hex value of register
  *
  * Return: voltage in uV on success, -ve on failure
  */
 static int tps65911_vdd_hex2volt(int hex)
 {
 	if (hex > TPS65910_VDD_SEL_MAX)
 		return -EINVAL;

 	if (hex < TPS65910_VDD_SEL_MIN)
 		hex = TPS65910_VDD_SEL_MIN;

 	return TPS65911_VDD_VOLT_BASE + hex * 12500;
 }

 static int tps65911_vio_range[4] = {
 	1500000, 1800000, 2500000, 3300000
 };

 static int tps65911_vio_val(struct udevice *dev, int op, int *uV)
 {
 	struct dm_regulator_uclass_plat *uc_pdata =
 					dev_get_uclass_plat(dev);
 	u32 adr = uc_pdata->volt_reg;
 	int i, val;

 	val = pmic_reg_read(dev->parent, adr);
 	if (val < 0)
 		return val;

 	if (op == PMIC_OP_GET) {
 		*uV = 0;

 		val &= TPS65910_SEL_MASK;

 		*uV = tps65911_vio_range[val >> 2];

 		return 0;
 	}

 	val &= ~TPS65910_SEL_MASK;

 	for (i = 0; i < ARRAY_SIZE(tps65911_vio_range); i++)
 		if (*uV <= tps65911_vio_range[i])
 			break;

 	return pmic_reg_write(dev->parent, adr, val | i << 2);
 }

 static int tps65911_vdd_val(struct udevice *dev, int op, int *uV)
 {
 	struct dm_regulator_uclass_plat *uc_pdata =
 					dev_get_uclass_plat(dev);
 	u32 adr = uc_pdata->volt_reg;
 	int val, ret;

 	/* in case vdd is vio */
 	if (!adr)
 		return tps65911_vio_val(dev, op, uV);

 	val = pmic_reg_read(dev->parent, adr);
 	if (val < 0)
 		return val;

 	if (op == PMIC_OP_GET) {
 		*uV = 0;

 		ret = tps65911_vdd_hex2volt(val);
 		if (ret < 0)
 			return ret;

 		*uV = ret;
 		return 0;
 	}

 	val = tps65911_vdd_volt2hex(*uV);
 	if (val < 0)
 		return val;

 	return pmic_reg_write(dev->parent, adr, val);
 }

 static int tps65911_vdd_probe(struct udevice *dev)
 {
 	struct dm_regulator_uclass_plat *uc_pdata =
 					dev_get_uclass_plat(dev);

 	uc_pdata->type = REGULATOR_TYPE_BUCK;

 	/* check for vddctrl and vddio cases */
 	if (!strcmp("vddctrl", dev->name)) {
 		uc_pdata->ctrl_reg = tps65911_vdd_reg[0][2];
 		uc_pdata->volt_reg = tps65911_vdd_reg[1][2];
 		return 0;
 	}

 	if (!strcmp("vddio", dev->name)) {
 		uc_pdata->ctrl_reg = tps65911_vdd_reg[0][3];
 		uc_pdata->volt_reg = tps65911_vdd_reg[1][3];
 		return 0;
 	}

 	if (dev->driver_data > 0) {
 		u8 idx = dev->driver_data - 1;

 		uc_pdata->ctrl_reg = tps65911_vdd_reg[0][idx];
 		uc_pdata->volt_reg = tps65911_vdd_reg[1][idx];
 	}

 	return 0;
 }

 static int vdd_get_value(struct udevice *dev)
 {
 	int uV;
 	int ret;

 	ret = tps65911_vdd_val(dev, PMIC_OP_GET, &uV);
 	if (ret)
 		return ret;

 	return uV;
 }

 static int vdd_set_value(struct udevice *dev, int uV)
 {
 	return tps65911_vdd_val(dev, PMIC_OP_SET, &uV);
 }

 static const struct dm_regulator_ops tps65911_vdd_ops = {
 	.get_value  = vdd_get_value,
 	.set_value  = vdd_set_value,
 	.get_enable = tps65911_get_enable,
 	.set_enable = tps65911_set_enable,
 };

 U_BOOT_DRIVER(tps65911_vdd) = {
 	.name = TPS65911_VDD_DRIVER,
 	.id = UCLASS_REGULATOR,
 	.ops = &tps65911_vdd_ops,
 	.probe = tps65911_vdd_probe,
 };

 /**
  * tps65911_ldo_volt2hex() - convert voltage in uV into
  *			     applicable to register hex value
  *
  * @idx:	regulator index
  * @uV:		voltage in uV
  *
  * Return: voltage in hex on success, -ve on failure
  */
 static int tps65911_ldo_volt2hex(int idx, int uV)
 {
 	int step;

 	if (uV > TPS65911_LDO_VOLT_MAX)
 		return -EINVAL;

 	if (uV < TPS65911_LDO_VOLT_BASE)
 		uV = TPS65911_LDO_VOLT_BASE;

 	switch (idx) {
 	case 1:
 	case 2:
 	case 4:
 		step = TPS65911_LDO124_VOLT_STEP;
 		break;
 	case 3:
 	case 5:
 	case 6:
 	case 7:
 	case 8:
 		step = TPS65911_LDO358_VOLT_STEP;
 		break;
 	default:
 		return -EINVAL;
 	};

 	return ((uV - TPS65911_LDO_VOLT_BASE) / step) << 2;
 }

 /**
  * tps65911_ldo_hex2volt() - convert register hex value into
  *			     actual voltage in uV
  *
  * @idx:	regulator index
  * @hex:	hex value of register
  *
  * Return: voltage in uV on success, -ve on failure
  */
 static int tps65911_ldo_hex2volt(int idx, int hex)
 {
 	int step;

 	switch (idx) {
 	case 1:
 	case 2:
 	case 4:
 		if (hex > TPS65911_LDO124_VOLT_MAX_HEX)
 			return -EINVAL;

 		step = TPS65911_LDO124_VOLT_STEP;
 		break;
 	case 3:
 	case 5:
 	case 6:
 	case 7:
 	case 8:
 		if (hex > TPS65911_LDO358_VOLT_MAX_HEX)
 			return -EINVAL;

 		if (hex < TPS65911_LDO358_VOLT_MIN_HEX)
 			hex = TPS65911_LDO358_VOLT_MIN_HEX;

 		step = TPS65911_LDO358_VOLT_STEP;
 		break;
 	default:
 		return -EINVAL;
 	};

 	return TPS65911_LDO_VOLT_BASE + hex * step;
 }

 static int tps65911_ldo_val(struct udevice *dev, int op, int *uV)
 {
 	struct dm_regulator_uclass_plat *uc_pdata =
 					dev_get_uclass_plat(dev);
 	u32 adr = uc_pdata->ctrl_reg;
 	int idx = dev->driver_data;
 	int val, hex, ret;

 	val = pmic_reg_read(dev->parent, adr);
 	if (val < 0)
 		return val;

 	if (op == PMIC_OP_GET) {
 		*uV = 0;
 		val &= TPS65911_LDO_SEL_MASK;

 		ret = tps65911_ldo_hex2volt(idx, val >> 2);
 		if (ret < 0)
 			return ret;

 		*uV = ret;
 		return 0;
 	}

 	hex = tps65911_ldo_volt2hex(idx, *uV);
 	if (hex < 0)
 		return hex;

 	val &= ~TPS65911_LDO_SEL_MASK;

 	return pmic_reg_write(dev->parent, adr, val | hex);
 }

 static int tps65911_ldo_probe(struct udevice *dev)
 {
 	struct dm_regulator_uclass_plat *uc_pdata =
 					dev_get_uclass_plat(dev);
 	u8 idx = dev->driver_data - 1;

 	uc_pdata->type = REGULATOR_TYPE_LDO;
 	uc_pdata->ctrl_reg = tps65911_ldo_reg[idx];

 	return 0;
 }

 static int ldo_get_value(struct udevice *dev)
 {
 	int uV;
 	int ret;

 	ret = tps65911_ldo_val(dev, PMIC_OP_GET, &uV);
 	if (ret)
 		return ret;

 	return uV;
 }

 static int ldo_set_value(struct udevice *dev, int uV)
 {
 	return tps65911_ldo_val(dev, PMIC_OP_SET, &uV);
 }

 static const struct dm_regulator_ops tps65911_ldo_ops = {
 	.get_value  = ldo_get_value,
 	.set_value  = ldo_set_value,
 	.get_enable = tps65911_get_enable,
 	.set_enable = tps65911_set_enable,
 };

 U_BOOT_DRIVER(tps65911_ldo) = {
 	.name = TPS65911_LDO_DRIVER,
 	.id = UCLASS_REGULATOR,
 	.ops = &tps65911_ldo_ops,
 	.probe = tps65911_ldo_probe,
 };
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Copyright(C) 2023 Svyatoslav Ryhel <clamor95@gmail.com>
	*/

	#include <dm.h>
	#include <power/pmic.h>
	#include <power/regulator.h>
	#include <power/tps65910_pmic.h>

	/* fist row is control registers, second is voltage registers */
	static const char tps65911_vdd_reg[][TPS65911_VDD_NUM] = {
	{ TPS65911_REG_VDD1, TPS65911_REG_VDD2,
	TPS65911_REG_VDDCTRL, TPS65911_REG_VIO },
	{ TPS65911_REG_VDD1_OP, TPS65911_REG_VDD2_OP,
	TPS65911_REG_VDDCTRL_OP, 0x00 },
	};

	static const char tps65911_ldo_reg[TPS65911_LDO_NUM] = {
	TPS65911_REG_LDO1, TPS65911_REG_LDO2, TPS65911_REG_LDO3,
	TPS65911_REG_LDO4, TPS65911_REG_LDO5, TPS65911_REG_LDO6,
	TPS65911_REG_LDO7, TPS65911_REG_LDO8
	};

	static int tps65911_regulator_enable(struct udevice dev, int op, bool enable)
	{
	struct dm_regulator_uclass_plat *uc_pdata =
	dev_get_uclass_plat(dev);
	u32 adr = uc_pdata->ctrl_reg;
	int val, ret;

	val = pmic_reg_read(dev->parent, adr);
	if (val < 0)
	return val;

	if (op == PMIC_OP_GET) {
	if (val & TPS65910_SUPPLY_STATE_ON)
	*enable = true;
	else
	*enable = false;

	return 0;
	} else if (op == PMIC_OP_SET) {
	val &= ~TPS65910_SUPPLY_STATE_MASK;

	if (*enable)
	val \|= TPS65910_SUPPLY_STATE_ON;

	ret = pmic_reg_write(dev->parent, adr, val);
	if (ret)
	return ret;
	}

	return 0;
	}

	static int tps65911_get_enable(struct udevice *dev)
	{
	bool enable = false;
	int ret;

	ret = tps65911_regulator_enable(dev, PMIC_OP_GET, &enable);
	if (ret)
	return ret;

	return enable;
	}

	static int tps65911_set_enable(struct udevice *dev, bool enable)
	{
	return tps65911_regulator_enable(dev, PMIC_OP_SET, &enable);
	}

	/**
	* tps65911_vdd_volt2hex() - convert voltage in uV into
	* applicable to register hex value
	*
	* @uV: voltage in uV
	*
	* Return: voltage in hex on success, -ve on failure
	*/
	static int tps65911_vdd_volt2hex(int uV)
	{
	if (uV > TPS65911_VDD_VOLT_MAX)
	return -EINVAL;

	if (uV < TPS65911_VDD_VOLT_MIN)
	uV = TPS65911_VDD_VOLT_MIN;

	return (uV - TPS65911_VDD_VOLT_BASE) / 12500;
	}

	/**
	* tps65911_vdd_hex2volt() - convert register hex value into
	* actual voltage in uV
	*
	* @hex: hex value of register
	*
	* Return: voltage in uV on success, -ve on failure
	*/
	static int tps65911_vdd_hex2volt(int hex)
	{
	if (hex > TPS65910_VDD_SEL_MAX)
	return -EINVAL;

	if (hex < TPS65910_VDD_SEL_MIN)
	hex = TPS65910_VDD_SEL_MIN;

	return TPS65911_VDD_VOLT_BASE + hex * 12500;
	}

	static int tps65911_vio_range[4] = {
	1500000, 1800000, 2500000, 3300000
	};

	static int tps65911_vio_val(struct udevice dev, int op, int uV)
	{
	struct dm_regulator_uclass_plat *uc_pdata =
	dev_get_uclass_plat(dev);
	u32 adr = uc_pdata->volt_reg;
	int i, val;

	val = pmic_reg_read(dev->parent, adr);
	if (val < 0)
	return val;

	if (op == PMIC_OP_GET) {
	*uV = 0;

	val &= TPS65910_SEL_MASK;

	*uV = tps65911_vio_range[val >> 2];

	return 0;
	}

	val &= ~TPS65910_SEL_MASK;

	for (i = 0; i < ARRAY_SIZE(tps65911_vio_range); i++)
	if (*uV <= tps65911_vio_range[i])
	break;

	return pmic_reg_write(dev->parent, adr, val \| i << 2);
	}

	static int tps65911_vdd_val(struct udevice dev, int op, int uV)
	{
	struct dm_regulator_uclass_plat *uc_pdata =
	dev_get_uclass_plat(dev);
	u32 adr = uc_pdata->volt_reg;
	int val, ret;

	/* in case vdd is vio */
	if (!adr)
	return tps65911_vio_val(dev, op, uV);

	val = pmic_reg_read(dev->parent, adr);
	if (val < 0)
	return val;

	if (op == PMIC_OP_GET) {
	*uV = 0;

	ret = tps65911_vdd_hex2volt(val);
	if (ret < 0)
	return ret;

	*uV = ret;
	return 0;
	}

	val = tps65911_vdd_volt2hex(*uV);
	if (val < 0)
	return val;

	return pmic_reg_write(dev->parent, adr, val);
	}

	static int tps65911_vdd_probe(struct udevice *dev)
	{
	struct dm_regulator_uclass_plat *uc_pdata =
	dev_get_uclass_plat(dev);

	uc_pdata->type = REGULATOR_TYPE_BUCK;

	/* check for vddctrl and vddio cases */
	if (!strcmp("vddctrl", dev->name)) {
	uc_pdata->ctrl_reg = tps65911_vdd_reg[0][2];
	uc_pdata->volt_reg = tps65911_vdd_reg[1][2];
	return 0;
	}

	if (!strcmp("vddio", dev->name)) {
	uc_pdata->ctrl_reg = tps65911_vdd_reg[0][3];
	uc_pdata->volt_reg = tps65911_vdd_reg[1][3];
	return 0;
	}

	if (dev->driver_data > 0) {
	u8 idx = dev->driver_data - 1;

	uc_pdata->ctrl_reg = tps65911_vdd_reg[0][idx];
	uc_pdata->volt_reg = tps65911_vdd_reg[1][idx];
	}

	return 0;
	}

	static int vdd_get_value(struct udevice *dev)
	{
	int uV;
	int ret;

	ret = tps65911_vdd_val(dev, PMIC_OP_GET, &uV);
	if (ret)
	return ret;

	return uV;
	}

	static int vdd_set_value(struct udevice *dev, int uV)
	{
	return tps65911_vdd_val(dev, PMIC_OP_SET, &uV);
	}

	static const struct dm_regulator_ops tps65911_vdd_ops = {
	.get_value = vdd_get_value,
	.set_value = vdd_set_value,
	.get_enable = tps65911_get_enable,
	.set_enable = tps65911_set_enable,
	};

	U_BOOT_DRIVER(tps65911_vdd) = {
	.name = TPS65911_VDD_DRIVER,
	.id = UCLASS_REGULATOR,
	.ops = &tps65911_vdd_ops,
	.probe = tps65911_vdd_probe,
	};

	/**
	* tps65911_ldo_volt2hex() - convert voltage in uV into
	* applicable to register hex value
	*
	* @idx: regulator index
	* @uV: voltage in uV
	*
	* Return: voltage in hex on success, -ve on failure
	*/
	static int tps65911_ldo_volt2hex(int idx, int uV)
	{
	int step;

	if (uV > TPS65911_LDO_VOLT_MAX)
	return -EINVAL;

	if (uV < TPS65911_LDO_VOLT_BASE)
	uV = TPS65911_LDO_VOLT_BASE;

	switch (idx) {
	case 1:
	case 2:
	case 4:
	step = TPS65911_LDO124_VOLT_STEP;
	break;
	case 3:
	case 5:
	case 6:
	case 7:
	case 8:
	step = TPS65911_LDO358_VOLT_STEP;
	break;
	default:
	return -EINVAL;
	};

	return ((uV - TPS65911_LDO_VOLT_BASE) / step) << 2;
	}

	/**
	* tps65911_ldo_hex2volt() - convert register hex value into
	* actual voltage in uV
	*
	* @idx: regulator index
	* @hex: hex value of register
	*
	* Return: voltage in uV on success, -ve on failure
	*/
	static int tps65911_ldo_hex2volt(int idx, int hex)
	{
	int step;

	switch (idx) {
	case 1:
	case 2:
	case 4:
	if (hex > TPS65911_LDO124_VOLT_MAX_HEX)
	return -EINVAL;

	step = TPS65911_LDO124_VOLT_STEP;
	break;
	case 3:
	case 5:
	case 6:
	case 7:
	case 8:
	if (hex > TPS65911_LDO358_VOLT_MAX_HEX)
	return -EINVAL;

	if (hex < TPS65911_LDO358_VOLT_MIN_HEX)
	hex = TPS65911_LDO358_VOLT_MIN_HEX;

	step = TPS65911_LDO358_VOLT_STEP;
	break;
	default:
	return -EINVAL;
	};

	return TPS65911_LDO_VOLT_BASE + hex * step;
	}

	static int tps65911_ldo_val(struct udevice dev, int op, int uV)
	{
	struct dm_regulator_uclass_plat *uc_pdata =
	dev_get_uclass_plat(dev);
	u32 adr = uc_pdata->ctrl_reg;
	int idx = dev->driver_data;
	int val, hex, ret;

	val = pmic_reg_read(dev->parent, adr);
	if (val < 0)
	return val;

	if (op == PMIC_OP_GET) {
	*uV = 0;
	val &= TPS65911_LDO_SEL_MASK;

	ret = tps65911_ldo_hex2volt(idx, val >> 2);
	if (ret < 0)
	return ret;

	*uV = ret;
	return 0;
	}

	hex = tps65911_ldo_volt2hex(idx, *uV);
	if (hex < 0)
	return hex;

	val &= ~TPS65911_LDO_SEL_MASK;

	return pmic_reg_write(dev->parent, adr, val \| hex);
	}

	static int tps65911_ldo_probe(struct udevice *dev)
	{
	struct dm_regulator_uclass_plat *uc_pdata =
	dev_get_uclass_plat(dev);
	u8 idx = dev->driver_data - 1;

	uc_pdata->type = REGULATOR_TYPE_LDO;
	uc_pdata->ctrl_reg = tps65911_ldo_reg[idx];

	return 0;
	}

	static int ldo_get_value(struct udevice *dev)
	{
	int uV;
	int ret;

	ret = tps65911_ldo_val(dev, PMIC_OP_GET, &uV);
	if (ret)
	return ret;

	return uV;
	}

	static int ldo_set_value(struct udevice *dev, int uV)
	{
	return tps65911_ldo_val(dev, PMIC_OP_SET, &uV);
	}

	static const struct dm_regulator_ops tps65911_ldo_ops = {
	.get_value = ldo_get_value,
	.set_value = ldo_set_value,
	.get_enable = tps65911_get_enable,
	.set_enable = tps65911_set_enable,
	};

	U_BOOT_DRIVER(tps65911_ldo) = {
	.name = TPS65911_LDO_DRIVER,
	.id = UCLASS_REGULATOR,
	.ops = &tps65911_ldo_ops,
	.probe = tps65911_ldo_probe,
	};