mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 02:36:39 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
491 lines
9.5 KiB
C
491 lines
9.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2016
|
|
* Texas Instruments Incorporated, <www.ti.com>
|
|
*
|
|
* Keerthy <j-keerthy@ti.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <fdtdec.h>
|
|
#include <errno.h>
|
|
#include <dm.h>
|
|
#include <i2c.h>
|
|
#include <power/pmic.h>
|
|
#include <power/regulator.h>
|
|
#include <power/palmas.h>
|
|
|
|
#define REGULATOR_ON 0x1
|
|
#define REGULATOR_OFF 0x0
|
|
|
|
#define SMPS_MODE_MASK 0x3
|
|
#define SMPS_MODE_SHIFT 0x0
|
|
#define LDO_MODE_MASK 0x1
|
|
#define LDO_MODE_SHIFT 0x0
|
|
|
|
static const char palmas_smps_ctrl[][PALMAS_SMPS_NUM] = {
|
|
{0x20, 0x24, 0x28, 0x2c, 0x30, 0x34, 0x38, 0x3c},
|
|
{0x20, 0x24, 0x28, 0x2c, 0x30, 0x34, 0x38},
|
|
{0x20, 0x24, 0x2c, 0x30, 0x38},
|
|
};
|
|
|
|
static const char palmas_smps_volt[][PALMAS_SMPS_NUM] = {
|
|
{0x23, 0x27, 0x2b, 0x2f, 0x33, 0x37, 0x3b, 0x3c},
|
|
{0x23, 0x27, 0x2b, 0x2f, 0x33, 0x37, 0x3b},
|
|
{0x23, 0x27, 0x2f, 0x33, 0x3B}
|
|
};
|
|
|
|
static const char palmas_ldo_ctrl[][PALMAS_LDO_NUM] = {
|
|
{0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e, 0x60, 0x62, 0x64},
|
|
{0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e, 0x60, 0x62, 0x64},
|
|
{0x50, 0x52, 0x54, 0x5e, 0x62}
|
|
};
|
|
|
|
static const char palmas_ldo_volt[][PALMAS_LDO_NUM] = {
|
|
{0x51, 0x53, 0x55, 0x57, 0x59, 0x5b, 0x5d, 0x5f, 0x61, 0x63, 0x65},
|
|
{0x51, 0x53, 0x55, 0x57, 0x59, 0x5b, 0x5d, 0x5f, 0x61, 0x63, 0x65},
|
|
{0x51, 0x53, 0x55, 0x5f, 0x63}
|
|
};
|
|
|
|
static int palmas_smps_enable(struct udevice *dev, int op, bool *enable)
|
|
{
|
|
int ret;
|
|
unsigned int adr;
|
|
struct dm_regulator_uclass_platdata *uc_pdata;
|
|
|
|
uc_pdata = dev_get_uclass_platdata(dev);
|
|
adr = uc_pdata->ctrl_reg;
|
|
|
|
ret = pmic_reg_read(dev->parent, adr);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
ret &= PALMAS_SMPS_STATUS_MASK;
|
|
|
|
if (ret)
|
|
*enable = true;
|
|
else
|
|
*enable = false;
|
|
|
|
return 0;
|
|
} else if (op == PMIC_OP_SET) {
|
|
if (*enable)
|
|
ret |= PALMAS_SMPS_MODE_MASK;
|
|
else
|
|
ret &= ~(PALMAS_SMPS_MODE_MASK);
|
|
|
|
ret = pmic_reg_write(dev->parent, adr, ret);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int palmas_smps_volt2hex(int uV)
|
|
{
|
|
if (uV > PALMAS_LDO_VOLT_MAX)
|
|
return -EINVAL;
|
|
|
|
if (uV > 1650000)
|
|
return (uV - 1000000) / 20000 + 0x6;
|
|
|
|
if (uV == 500000)
|
|
return 0x6;
|
|
else
|
|
return 0x6 + ((uV - 500000) / 10000);
|
|
}
|
|
|
|
static int palmas_smps_hex2volt(int hex, bool range)
|
|
{
|
|
unsigned int uV = 0;
|
|
|
|
if (hex > PALMAS_SMPS_VOLT_MAX_HEX)
|
|
return -EINVAL;
|
|
|
|
if (hex < 0x7)
|
|
uV = 500000;
|
|
else
|
|
uV = 500000 + (hex - 0x6) * 10000;
|
|
|
|
if (range)
|
|
uV *= 2;
|
|
|
|
return uV;
|
|
}
|
|
|
|
static int palmas_smps_val(struct udevice *dev, int op, int *uV)
|
|
{
|
|
unsigned int hex, adr;
|
|
int ret;
|
|
bool range;
|
|
struct dm_regulator_uclass_platdata *uc_pdata;
|
|
|
|
uc_pdata = dev_get_uclass_platdata(dev);
|
|
|
|
if (op == PMIC_OP_GET)
|
|
*uV = 0;
|
|
|
|
adr = uc_pdata->volt_reg;
|
|
|
|
ret = pmic_reg_read(dev->parent, adr);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
if (ret & PALMAS_SMPS_RANGE_MASK)
|
|
range = true;
|
|
else
|
|
range = false;
|
|
|
|
ret &= PALMAS_SMPS_VOLT_MASK;
|
|
ret = palmas_smps_hex2volt(ret, range);
|
|
if (ret < 0)
|
|
return ret;
|
|
*uV = ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
hex = palmas_smps_volt2hex(*uV);
|
|
if (hex < 0)
|
|
return hex;
|
|
|
|
ret &= ~PALMAS_SMPS_VOLT_MASK;
|
|
ret |= hex;
|
|
if (*uV > 1650000)
|
|
ret |= PALMAS_SMPS_RANGE_MASK;
|
|
|
|
return pmic_reg_write(dev->parent, adr, ret);
|
|
}
|
|
|
|
static int palmas_ldo_bypass_enable(struct udevice *dev, bool enabled)
|
|
{
|
|
int type = dev_get_driver_data(dev_get_parent(dev));
|
|
struct dm_regulator_uclass_platdata *p;
|
|
unsigned int adr;
|
|
int reg;
|
|
|
|
if (type == TPS65917) {
|
|
/* bypass available only on LDO1 and LDO2 */
|
|
if (dev->driver_data > 2)
|
|
return -ENOTSUPP;
|
|
} else if (type == TPS659038) {
|
|
/* bypass available only on LDO9 */
|
|
if (dev->driver_data != 9)
|
|
return -ENOTSUPP;
|
|
}
|
|
|
|
p = dev_get_uclass_platdata(dev);
|
|
adr = p->ctrl_reg;
|
|
|
|
reg = pmic_reg_read(dev->parent, adr);
|
|
if (reg < 0)
|
|
return reg;
|
|
|
|
if (enabled)
|
|
reg |= PALMAS_LDO_BYPASS_EN;
|
|
else
|
|
reg &= ~PALMAS_LDO_BYPASS_EN;
|
|
|
|
return pmic_reg_write(dev->parent, adr, reg);
|
|
}
|
|
|
|
static int palmas_ldo_enable(struct udevice *dev, int op, bool *enable)
|
|
{
|
|
int ret;
|
|
unsigned int adr;
|
|
struct dm_regulator_uclass_platdata *uc_pdata;
|
|
|
|
uc_pdata = dev_get_uclass_platdata(dev);
|
|
adr = uc_pdata->ctrl_reg;
|
|
|
|
ret = pmic_reg_read(dev->parent, adr);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
ret &= PALMAS_LDO_STATUS_MASK;
|
|
|
|
if (ret)
|
|
*enable = true;
|
|
else
|
|
*enable = false;
|
|
|
|
return 0;
|
|
} else if (op == PMIC_OP_SET) {
|
|
if (*enable)
|
|
ret |= PALMAS_LDO_MODE_MASK;
|
|
else
|
|
ret &= ~(PALMAS_LDO_MODE_MASK);
|
|
|
|
ret = pmic_reg_write(dev->parent, adr, ret);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = palmas_ldo_bypass_enable(dev, false);
|
|
if (ret && (ret != -ENOTSUPP))
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int palmas_ldo_volt2hex(int uV)
|
|
{
|
|
if (uV > PALMAS_LDO_VOLT_MAX)
|
|
return -EINVAL;
|
|
|
|
return (uV - 850000) / 50000;
|
|
}
|
|
|
|
static int palmas_ldo_hex2volt(int hex)
|
|
{
|
|
if (hex > PALMAS_LDO_VOLT_MAX_HEX)
|
|
return -EINVAL;
|
|
|
|
if (!hex)
|
|
return 0;
|
|
|
|
return (hex * 50000) + 850000;
|
|
}
|
|
|
|
static int palmas_ldo_val(struct udevice *dev, int op, int *uV)
|
|
{
|
|
unsigned int hex, adr;
|
|
int ret;
|
|
|
|
struct dm_regulator_uclass_platdata *uc_pdata;
|
|
|
|
if (op == PMIC_OP_GET)
|
|
*uV = 0;
|
|
|
|
uc_pdata = dev_get_uclass_platdata(dev);
|
|
|
|
adr = uc_pdata->volt_reg;
|
|
|
|
ret = pmic_reg_read(dev->parent, adr);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
ret &= PALMAS_LDO_VOLT_MASK;
|
|
ret = palmas_ldo_hex2volt(ret);
|
|
if (ret < 0)
|
|
return ret;
|
|
*uV = ret;
|
|
return 0;
|
|
}
|
|
|
|
hex = palmas_ldo_volt2hex(*uV);
|
|
if (hex < 0)
|
|
return hex;
|
|
|
|
ret &= ~PALMAS_LDO_VOLT_MASK;
|
|
ret |= hex;
|
|
if (*uV > 1650000)
|
|
ret |= 0x80;
|
|
|
|
return pmic_reg_write(dev->parent, adr, ret);
|
|
}
|
|
|
|
static int palmas_ldo_probe(struct udevice *dev)
|
|
{
|
|
struct dm_regulator_uclass_platdata *uc_pdata;
|
|
struct udevice *parent;
|
|
|
|
uc_pdata = dev_get_uclass_platdata(dev);
|
|
|
|
parent = dev_get_parent(dev);
|
|
int type = dev_get_driver_data(parent);
|
|
|
|
uc_pdata->type = REGULATOR_TYPE_LDO;
|
|
|
|
if (dev->driver_data) {
|
|
u8 idx = dev->driver_data - 1;
|
|
uc_pdata->ctrl_reg = palmas_ldo_ctrl[type][idx];
|
|
uc_pdata->volt_reg = palmas_ldo_volt[type][idx];
|
|
} else {
|
|
/* check for ldoln and ldousb cases */
|
|
if (!strcmp("ldoln", dev->name)) {
|
|
uc_pdata->ctrl_reg = palmas_ldo_ctrl[type][9];
|
|
uc_pdata->volt_reg = palmas_ldo_volt[type][9];
|
|
} else if (!strcmp("ldousb", dev->name)) {
|
|
uc_pdata->ctrl_reg = palmas_ldo_ctrl[type][10];
|
|
uc_pdata->volt_reg = palmas_ldo_volt[type][10];
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ldo_get_value(struct udevice *dev)
|
|
{
|
|
int uV;
|
|
int ret;
|
|
|
|
ret = palmas_ldo_val(dev, PMIC_OP_GET, &uV);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return uV;
|
|
}
|
|
|
|
static int ldo_set_value(struct udevice *dev, int uV)
|
|
{
|
|
return palmas_ldo_val(dev, PMIC_OP_SET, &uV);
|
|
}
|
|
|
|
static int ldo_get_enable(struct udevice *dev)
|
|
{
|
|
bool enable = false;
|
|
int ret;
|
|
|
|
ret = palmas_ldo_enable(dev, PMIC_OP_GET, &enable);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return enable;
|
|
}
|
|
|
|
static int ldo_set_enable(struct udevice *dev, bool enable)
|
|
{
|
|
return palmas_ldo_enable(dev, PMIC_OP_SET, &enable);
|
|
}
|
|
|
|
static int palmas_smps_probe(struct udevice *dev)
|
|
{
|
|
struct dm_regulator_uclass_platdata *uc_pdata;
|
|
struct udevice *parent;
|
|
int idx;
|
|
|
|
uc_pdata = dev_get_uclass_platdata(dev);
|
|
|
|
parent = dev_get_parent(dev);
|
|
int type = dev_get_driver_data(parent);
|
|
|
|
uc_pdata->type = REGULATOR_TYPE_BUCK;
|
|
|
|
switch (type) {
|
|
case PALMAS:
|
|
case TPS659038:
|
|
switch (dev->driver_data) {
|
|
case 123:
|
|
case 12:
|
|
uc_pdata->ctrl_reg = palmas_smps_ctrl[type][0];
|
|
uc_pdata->volt_reg = palmas_smps_volt[type][0];
|
|
break;
|
|
case 3:
|
|
uc_pdata->ctrl_reg = palmas_smps_ctrl[type][1];
|
|
uc_pdata->volt_reg = palmas_smps_volt[type][1];
|
|
break;
|
|
case 45:
|
|
uc_pdata->ctrl_reg = palmas_smps_ctrl[type][2];
|
|
uc_pdata->volt_reg = palmas_smps_volt[type][2];
|
|
break;
|
|
case 6:
|
|
case 7:
|
|
case 8:
|
|
case 9:
|
|
case 10:
|
|
idx = dev->driver_data - 3;
|
|
uc_pdata->ctrl_reg = palmas_smps_ctrl[type][idx];
|
|
uc_pdata->volt_reg = palmas_smps_volt[type][idx];
|
|
break;
|
|
|
|
default:
|
|
printf("Wrong ID for regulator\n");
|
|
}
|
|
break;
|
|
|
|
case TPS65917:
|
|
switch (dev->driver_data) {
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
case 4:
|
|
case 5:
|
|
idx = dev->driver_data - 1;
|
|
uc_pdata->ctrl_reg = palmas_smps_ctrl[type][idx];
|
|
uc_pdata->volt_reg = palmas_smps_volt[type][idx];
|
|
break;
|
|
case 12:
|
|
idx = 0;
|
|
uc_pdata->ctrl_reg = palmas_smps_ctrl[type][idx];
|
|
uc_pdata->volt_reg = palmas_smps_volt[type][idx];
|
|
break;
|
|
default:
|
|
printf("Wrong ID for regulator\n");
|
|
}
|
|
break;
|
|
|
|
default:
|
|
printf("Invalid PMIC ID\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int smps_get_value(struct udevice *dev)
|
|
{
|
|
int uV;
|
|
int ret;
|
|
|
|
ret = palmas_smps_val(dev, PMIC_OP_GET, &uV);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return uV;
|
|
}
|
|
|
|
static int smps_set_value(struct udevice *dev, int uV)
|
|
{
|
|
return palmas_smps_val(dev, PMIC_OP_SET, &uV);
|
|
}
|
|
|
|
static int smps_get_enable(struct udevice *dev)
|
|
{
|
|
bool enable = false;
|
|
int ret;
|
|
|
|
ret = palmas_smps_enable(dev, PMIC_OP_GET, &enable);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return enable;
|
|
}
|
|
|
|
static int smps_set_enable(struct udevice *dev, bool enable)
|
|
{
|
|
return palmas_smps_enable(dev, PMIC_OP_SET, &enable);
|
|
}
|
|
|
|
static const struct dm_regulator_ops palmas_ldo_ops = {
|
|
.get_value = ldo_get_value,
|
|
.set_value = ldo_set_value,
|
|
.get_enable = ldo_get_enable,
|
|
.set_enable = ldo_set_enable,
|
|
};
|
|
|
|
U_BOOT_DRIVER(palmas_ldo) = {
|
|
.name = PALMAS_LDO_DRIVER,
|
|
.id = UCLASS_REGULATOR,
|
|
.ops = &palmas_ldo_ops,
|
|
.probe = palmas_ldo_probe,
|
|
};
|
|
|
|
static const struct dm_regulator_ops palmas_smps_ops = {
|
|
.get_value = smps_get_value,
|
|
.set_value = smps_set_value,
|
|
.get_enable = smps_get_enable,
|
|
.set_enable = smps_set_enable,
|
|
};
|
|
|
|
U_BOOT_DRIVER(palmas_smps) = {
|
|
.name = PALMAS_SMPS_DRIVER,
|
|
.id = UCLASS_REGULATOR,
|
|
.ops = &palmas_smps_ops,
|
|
.probe = palmas_smps_probe,
|
|
};
|