mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-24 21:54:01 +00:00
power: regulator: tps80031: add regulator support
The driver provides regulator set/get voltage enable/disable functions for TI TPS80031/TPS80032 PMICs. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Svyatoslav Ryhel
Tom Rini
parent
51201e49b0
commit
a70a75aa6c
3 changed files with 356 additions and 0 deletions
|
|
@ -356,6 +356,14 @@ config DM_REGULATOR_TPS62360
|
|||
implements the get/set api for value only, as the power line is
|
||||
always on.
|
||||
|
||||
config DM_REGULATOR_TPS80031
|
||||
bool "Enable driver for TPS80031/TPS80032 PMIC regulators"
|
||||
depends on DM_PMIC_TPS80031
|
||||
---help---
|
||||
This enables implementation of driver-model regulator uclass
|
||||
features for TPS80031/TPS80032 PMICs. The driver implements
|
||||
get/set api for: value and enable.
|
||||
|
||||
config DM_REGULATOR_STPMIC1
|
||||
bool "Enable driver for STPMIC1 regulators"
|
||||
depends on DM_REGULATOR && PMIC_STPMIC1
|
||||
|
|
|
|||
|
|
@ -33,6 +33,7 @@ obj-$(CONFIG_$(SPL_)DM_REGULATOR_LP87565) += lp87565_regulator.o
|
|||
obj-$(CONFIG_$(SPL_)DM_REGULATOR_STM32_VREFBUF) += stm32-vrefbuf.o
|
||||
obj-$(CONFIG_DM_REGULATOR_TPS65910) += tps65910_regulator.o
|
||||
obj-$(CONFIG_DM_REGULATOR_TPS62360) += tps62360_regulator.o
|
||||
obj-$(CONFIG_$(SPL_)DM_REGULATOR_TPS80031) += tps80031_regulator.o
|
||||
obj-$(CONFIG_$(SPL_)DM_REGULATOR_STPMIC1) += stpmic1.o
|
||||
obj-$(CONFIG_DM_REGULATOR_TPS65941) += tps65941_regulator.o
|
||||
obj-$(CONFIG_DM_REGULATOR_SCMI) += scmi_regulator.o
|
||||
|
|
|
|||
347
drivers/power/regulator/tps80031_regulator.c
Normal file
347
drivers/power/regulator/tps80031_regulator.c
Normal file
|
|
@ -0,0 +1,347 @@
|
|||
// 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/tps80031.h>
|
||||
|
||||
static const char tps80031_smps_reg[][TPS80031_SMPS_NUM] = {
|
||||
{ 0x54, 0x5a, 0x66, 0x42, 0x48 },
|
||||
{ 0x56, 0x5c, 0x68, 0x44, 0x4a },
|
||||
{ BIT(3), BIT(4), BIT(6), BIT(0), BIT(1) },
|
||||
};
|
||||
|
||||
static const char tps80031_ldo_reg[][TPS80031_LDO_NUM] = {
|
||||
{ 0x9e, 0x86, 0x8e, 0x8a, 0x9a, 0x92, 0xa6, 0x96, 0xa2 },
|
||||
{ 0x9f, 0x87, 0x8f, 0x8b, 0x9b, 0x93, 0xa7, 0x97, 0xa3 },
|
||||
};
|
||||
|
||||
static int tps80031_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 & REGULATOR_MODE_ON)
|
||||
*enable = true;
|
||||
else
|
||||
*enable = false;
|
||||
|
||||
return 0;
|
||||
} else if (op == PMIC_OP_SET) {
|
||||
val &= ~REGULATOR_STATUS_MASK;
|
||||
|
||||
if (*enable)
|
||||
val |= REGULATOR_MODE_ON;
|
||||
|
||||
ret = pmic_reg_write(dev->parent, adr, val);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int tps80031_get_enable(struct udevice *dev)
|
||||
{
|
||||
bool enable = false;
|
||||
int ret;
|
||||
|
||||
ret = tps80031_regulator_enable(dev, PMIC_OP_GET, &enable);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return enable;
|
||||
}
|
||||
|
||||
static int tps80031_set_enable(struct udevice *dev, bool enable)
|
||||
{
|
||||
return tps80031_regulator_enable(dev, PMIC_OP_SET, &enable);
|
||||
}
|
||||
|
||||
/**
|
||||
* tps80031_ldo_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 tps80031_ldo_volt2hex(int uV)
|
||||
{
|
||||
if (uV > LDO_VOLT_MAX)
|
||||
return -EINVAL;
|
||||
|
||||
if (uV < LDO_VOLT_MIN)
|
||||
uV = LDO_VOLT_MIN;
|
||||
|
||||
return DIV_ROUND_UP(uV - LDO_VOLT_BASE, 102000);
|
||||
}
|
||||
|
||||
/**
|
||||
* tps80031_ldo_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 tps80031_ldo_hex2volt(int hex)
|
||||
{
|
||||
if (hex > LDO_VOLT_MAX_HEX)
|
||||
return -EINVAL;
|
||||
|
||||
if (hex < LDO_VOLT_MIN_HEX)
|
||||
hex = LDO_VOLT_MIN_HEX;
|
||||
|
||||
return LDO_VOLT_BASE + hex * 102000;
|
||||
}
|
||||
|
||||
static int tps80031_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->volt_reg;
|
||||
int val, hex, ret;
|
||||
|
||||
val = pmic_reg_read(dev->parent, adr);
|
||||
if (val < 0)
|
||||
return val;
|
||||
|
||||
if (op == PMIC_OP_GET) {
|
||||
*uV = 0;
|
||||
|
||||
ret = tps80031_ldo_hex2volt(val & LDO_VOLT_MASK);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
*uV = ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
hex = tps80031_ldo_volt2hex(*uV);
|
||||
if (hex < 0)
|
||||
return hex;
|
||||
|
||||
val &= ~LDO_VOLT_MASK;
|
||||
|
||||
return pmic_reg_write(dev->parent, adr, val | hex);
|
||||
}
|
||||
|
||||
static int tps80031_ldo_probe(struct udevice *dev)
|
||||
{
|
||||
struct dm_regulator_uclass_plat *uc_pdata =
|
||||
dev_get_uclass_plat(dev);
|
||||
|
||||
uc_pdata->type = REGULATOR_TYPE_LDO;
|
||||
|
||||
/* check for ldoln and ldousb cases */
|
||||
if (!strcmp("ldoln", dev->name)) {
|
||||
uc_pdata->ctrl_reg = tps80031_ldo_reg[CTRL][7];
|
||||
uc_pdata->volt_reg = tps80031_ldo_reg[VOLT][7];
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!strcmp("ldousb", dev->name)) {
|
||||
uc_pdata->ctrl_reg = tps80031_ldo_reg[CTRL][8];
|
||||
uc_pdata->volt_reg = tps80031_ldo_reg[VOLT][8];
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (dev->driver_data > 0) {
|
||||
u8 idx = dev->driver_data - 1;
|
||||
|
||||
uc_pdata->ctrl_reg = tps80031_ldo_reg[CTRL][idx];
|
||||
uc_pdata->volt_reg = tps80031_ldo_reg[VOLT][idx];
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ldo_get_value(struct udevice *dev)
|
||||
{
|
||||
int uV;
|
||||
int ret;
|
||||
|
||||
ret = tps80031_ldo_val(dev, PMIC_OP_GET, &uV);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return uV;
|
||||
}
|
||||
|
||||
static int ldo_set_value(struct udevice *dev, int uV)
|
||||
{
|
||||
return tps80031_ldo_val(dev, PMIC_OP_SET, &uV);
|
||||
}
|
||||
|
||||
static const struct dm_regulator_ops tps80031_ldo_ops = {
|
||||
.get_value = ldo_get_value,
|
||||
.set_value = ldo_set_value,
|
||||
.get_enable = tps80031_get_enable,
|
||||
.set_enable = tps80031_set_enable,
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(tps80031_ldo) = {
|
||||
.name = TPS80031_LDO_DRIVER,
|
||||
.id = UCLASS_REGULATOR,
|
||||
.ops = &tps80031_ldo_ops,
|
||||
.probe = tps80031_ldo_probe,
|
||||
};
|
||||
|
||||
struct tps80031_smps_priv {
|
||||
int flags;
|
||||
};
|
||||
|
||||
/* DCDC voltages for the selector of 0x39 to 0x3F */
|
||||
static int tps80031_dcdc_voltages[5] = {
|
||||
1350000, 1500000, 1800000, 1900000, 2100000
|
||||
};
|
||||
|
||||
/**
|
||||
* tps80031_smps_volt2hex() - convert voltage in uV into
|
||||
* applicable to register hex value
|
||||
*
|
||||
* @base: base voltage in uV
|
||||
* @uV: voltage in uV
|
||||
*
|
||||
* Return: voltage in hex on success, -ve on failure
|
||||
*/
|
||||
static int tps80031_smps_volt2hex(u32 base, int uV)
|
||||
{
|
||||
int i;
|
||||
|
||||
if (uV < base)
|
||||
return 1;
|
||||
|
||||
if (uV > SMPS_VOLT_LINEAR) {
|
||||
for (i = 0; i < ARRAY_SIZE(tps80031_dcdc_voltages); i++)
|
||||
if (uV <= tps80031_dcdc_voltages[i])
|
||||
break;
|
||||
|
||||
return SMPS_VOLT_NLINEAR_HEX + i;
|
||||
}
|
||||
|
||||
return DIV_ROUND_UP(uV - base, 12500);
|
||||
}
|
||||
|
||||
/**
|
||||
* tps80031_smps_hex2volt() - convert register hex value into
|
||||
* actual voltage in uV
|
||||
*
|
||||
* @base: base voltage in uV
|
||||
* @hex: hex value of register
|
||||
*
|
||||
* Return: voltage in uV on success, -ve on failure
|
||||
*/
|
||||
static int tps80031_smps_hex2volt(u32 base, int hex)
|
||||
{
|
||||
if (!hex)
|
||||
return 0;
|
||||
|
||||
/* if reg value exceeds linear scale use table */
|
||||
if (hex > SMPS_VOLT_LINEAR_HEX)
|
||||
return tps80031_dcdc_voltages[hex - SMPS_VOLT_LINEAR_HEX];
|
||||
else
|
||||
return base + hex * 12500;
|
||||
}
|
||||
|
||||
static int tps80031_smps_val(struct udevice *dev, int op, int *uV)
|
||||
{
|
||||
struct dm_regulator_uclass_plat *uc_pdata =
|
||||
dev_get_uclass_plat(dev);
|
||||
struct tps80031_smps_priv *priv = dev_get_priv(dev);
|
||||
u32 adr = uc_pdata->volt_reg;
|
||||
int base, val, hex, ret;
|
||||
|
||||
/* If offset flag was set then base voltage is higher */
|
||||
if (priv->flags & TPS80031_OFFSET_FLAG)
|
||||
base = SMPS_VOLT_BASE_OFFSET;
|
||||
else
|
||||
base = SMPS_VOLT_BASE;
|
||||
|
||||
val = pmic_reg_read(dev->parent, adr);
|
||||
if (val < 0)
|
||||
return val;
|
||||
|
||||
if (op == PMIC_OP_GET) {
|
||||
*uV = 0;
|
||||
|
||||
ret = tps80031_smps_hex2volt(base, val & SMPS_VOLT_MASK);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
*uV = ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
hex = tps80031_smps_volt2hex(base, *uV);
|
||||
if (hex < 0)
|
||||
return hex;
|
||||
|
||||
val &= ~SMPS_VOLT_MASK;
|
||||
|
||||
return pmic_reg_write(dev->parent, adr, val | hex);
|
||||
}
|
||||
|
||||
static int tps80031_smps_probe(struct udevice *dev)
|
||||
{
|
||||
struct dm_regulator_uclass_plat *uc_pdata =
|
||||
dev_get_uclass_plat(dev);
|
||||
struct tps80031_smps_priv *priv = dev_get_priv(dev);
|
||||
int idx = dev->driver_data - 1;
|
||||
int val;
|
||||
|
||||
uc_pdata->type = REGULATOR_TYPE_BUCK;
|
||||
|
||||
uc_pdata->ctrl_reg = tps80031_smps_reg[CTRL][idx];
|
||||
uc_pdata->volt_reg = tps80031_smps_reg[VOLT][idx];
|
||||
|
||||
/* Determine if smps regulator uses higher voltage */
|
||||
val = pmic_reg_read(dev->parent, TPS80031_SMPS_OFFSET);
|
||||
if (val & tps80031_smps_reg[OFFSET][idx])
|
||||
priv->flags |= TPS80031_OFFSET_FLAG;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int smps_get_value(struct udevice *dev)
|
||||
{
|
||||
int uV;
|
||||
int ret;
|
||||
|
||||
ret = tps80031_smps_val(dev, PMIC_OP_GET, &uV);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
return uV;
|
||||
}
|
||||
|
||||
static int smps_set_value(struct udevice *dev, int uV)
|
||||
{
|
||||
return tps80031_smps_val(dev, PMIC_OP_SET, &uV);
|
||||
}
|
||||
|
||||
static const struct dm_regulator_ops tps80031_smps_ops = {
|
||||
.get_value = smps_get_value,
|
||||
.set_value = smps_set_value,
|
||||
.get_enable = tps80031_get_enable,
|
||||
.set_enable = tps80031_set_enable,
|
||||
};
|
||||
|
||||
U_BOOT_DRIVER(tps80031_smps) = {
|
||||
.name = TPS80031_SMPS_DRIVER,
|
||||
.id = UCLASS_REGULATOR,
|
||||
.ops = &tps80031_smps_ops,
|
||||
.probe = tps80031_smps_probe,
|
||||
.priv_auto = sizeof(struct tps80031_smps_priv),
|
||||
};
|
||||
Loading…
Reference in a new issue