mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 06:12:58 +00:00
caa4daa2ae
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
608 lines
11 KiB
C
608 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2018 Samsung Electronics
|
|
* Jaehoon Chung <jh80.chung@samsung.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <fdtdec.h>
|
|
#include <errno.h>
|
|
#include <dm.h>
|
|
#include <i2c.h>
|
|
#include <linux/delay.h>
|
|
#include <power/pmic.h>
|
|
#include <power/regulator.h>
|
|
#include <power/s2mps11.h>
|
|
|
|
#define MODE(_id, _val, _name) { \
|
|
.id = _id, \
|
|
.register_value = _val, \
|
|
.name = _name, \
|
|
}
|
|
|
|
/* BUCK : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 */
|
|
static struct dm_regulator_mode s2mps11_buck_modes[] = {
|
|
MODE(OP_OFF, S2MPS11_BUCK_MODE_OFF, "OFF"),
|
|
MODE(OP_STANDBY, S2MPS11_BUCK_MODE_STANDBY, "ON/OFF"),
|
|
MODE(OP_ON, S2MPS11_BUCK_MODE_STANDBY, "ON"),
|
|
};
|
|
|
|
static struct dm_regulator_mode s2mps11_ldo_modes[] = {
|
|
MODE(OP_OFF, S2MPS11_LDO_MODE_OFF, "OFF"),
|
|
MODE(OP_STANDBY, S2MPS11_LDO_MODE_STANDBY, "ON/OFF"),
|
|
MODE(OP_STANDBY_LPM, S2MPS11_LDO_MODE_STANDBY_LPM, "ON/LPM"),
|
|
MODE(OP_ON, S2MPS11_LDO_MODE_ON, "ON"),
|
|
};
|
|
|
|
static const char s2mps11_buck_ctrl[] = {
|
|
0xff, 0x25, 0x27, 0x29, 0x2b, 0x2d, 0x33, 0x35, 0x37, 0x39, 0x3b
|
|
};
|
|
|
|
static const char s2mps11_buck_out[] = {
|
|
0xff, 0x26, 0x28, 0x2a, 0x2c, 0x2f, 0x34, 0x36, 0x38, 0x3a, 0x3c
|
|
};
|
|
|
|
static int s2mps11_buck_hex2volt(int buck, int hex)
|
|
{
|
|
unsigned int uV = 0;
|
|
|
|
if (hex < 0)
|
|
goto bad;
|
|
|
|
switch (buck) {
|
|
case 7:
|
|
case 8:
|
|
case 10:
|
|
if (hex > S2MPS11_BUCK7_8_10_VOLT_MAX_HEX)
|
|
goto bad;
|
|
|
|
uV = hex * S2MPS11_BUCK_HSTEP + S2MPS11_BUCK_UV_HMIN;
|
|
break;
|
|
case 9:
|
|
if (hex > S2MPS11_BUCK9_VOLT_MAX_HEX)
|
|
goto bad;
|
|
uV = hex * S2MPS11_BUCK9_STEP * 2 + S2MPS11_BUCK9_UV_MIN;
|
|
break;
|
|
default:
|
|
if (buck == 5 && hex > S2MPS11_BUCK5_VOLT_MAX_HEX)
|
|
goto bad;
|
|
else if (buck != 5 && hex > S2MPS11_BUCK_VOLT_MAX_HEX)
|
|
goto bad;
|
|
|
|
uV = hex * S2MPS11_BUCK_LSTEP + S2MPS11_BUCK_UV_MIN;
|
|
break;
|
|
}
|
|
|
|
return uV;
|
|
bad:
|
|
pr_err("Value: %#x is wrong for BUCK%d", hex, buck);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int s2mps11_buck_volt2hex(int buck, int uV)
|
|
{
|
|
int hex;
|
|
|
|
switch (buck) {
|
|
case 7:
|
|
case 8:
|
|
case 10:
|
|
hex = (uV - S2MPS11_BUCK_UV_HMIN) / S2MPS11_BUCK_HSTEP;
|
|
if (hex > S2MPS11_BUCK7_8_10_VOLT_MAX_HEX)
|
|
goto bad;
|
|
|
|
break;
|
|
case 9:
|
|
hex = (uV - S2MPS11_BUCK9_UV_MIN) / S2MPS11_BUCK9_STEP;
|
|
if (hex > S2MPS11_BUCK9_VOLT_MAX_HEX)
|
|
goto bad;
|
|
break;
|
|
default:
|
|
hex = (uV - S2MPS11_BUCK_UV_MIN) / S2MPS11_BUCK_LSTEP;
|
|
if (buck == 5 && hex > S2MPS11_BUCK5_VOLT_MAX_HEX)
|
|
goto bad;
|
|
else if (buck != 5 && hex > S2MPS11_BUCK_VOLT_MAX_HEX)
|
|
goto bad;
|
|
break;
|
|
};
|
|
|
|
if (hex >= 0)
|
|
return hex;
|
|
|
|
bad:
|
|
pr_err("Value: %d uV is wrong for BUCK%d", uV, buck);
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int s2mps11_buck_val(struct udevice *dev, int op, int *uV)
|
|
{
|
|
int hex, buck, ret;
|
|
u32 mask, addr;
|
|
u8 val;
|
|
|
|
buck = dev->driver_data;
|
|
if (buck < 1 || buck > S2MPS11_BUCK_NUM) {
|
|
pr_err("Wrong buck number: %d\n", buck);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (op == PMIC_OP_GET)
|
|
*uV = 0;
|
|
|
|
addr = s2mps11_buck_out[buck];
|
|
|
|
switch (buck) {
|
|
case 9:
|
|
mask = S2MPS11_BUCK9_VOLT_MASK;
|
|
break;
|
|
default:
|
|
mask = S2MPS11_BUCK_VOLT_MASK;
|
|
break;
|
|
}
|
|
|
|
ret = pmic_read(dev->parent, addr, &val, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
val &= mask;
|
|
ret = s2mps11_buck_hex2volt(buck, val);
|
|
if (ret < 0)
|
|
return ret;
|
|
*uV = ret;
|
|
return 0;
|
|
}
|
|
|
|
hex = s2mps11_buck_volt2hex(buck, *uV);
|
|
if (hex < 0)
|
|
return hex;
|
|
|
|
val &= ~mask;
|
|
val |= hex;
|
|
ret = pmic_write(dev->parent, addr, &val, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int s2mps11_buck_mode(struct udevice *dev, int op, int *opmode)
|
|
{
|
|
unsigned int addr, mode;
|
|
unsigned char val;
|
|
int buck, ret;
|
|
|
|
buck = dev->driver_data;
|
|
if (buck < 1 || buck > S2MPS11_BUCK_NUM) {
|
|
pr_err("Wrong buck number: %d\n", buck);
|
|
return -EINVAL;
|
|
}
|
|
|
|
addr = s2mps11_buck_ctrl[buck];
|
|
|
|
ret = pmic_read(dev->parent, addr, &val, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
val &= (S2MPS11_BUCK_MODE_MASK << S2MPS11_BUCK_MODE_SHIFT);
|
|
switch (val) {
|
|
case S2MPS11_BUCK_MODE_OFF:
|
|
*opmode = OP_OFF;
|
|
break;
|
|
case S2MPS11_BUCK_MODE_STANDBY:
|
|
*opmode = OP_STANDBY;
|
|
break;
|
|
case S2MPS11_BUCK_MODE_ON:
|
|
*opmode = OP_ON;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
switch (*opmode) {
|
|
case OP_OFF:
|
|
mode = S2MPS11_BUCK_MODE_OFF;
|
|
break;
|
|
case OP_STANDBY:
|
|
mode = S2MPS11_BUCK_MODE_STANDBY;
|
|
break;
|
|
case OP_ON:
|
|
mode = S2MPS11_BUCK_MODE_ON;
|
|
break;
|
|
default:
|
|
pr_err("Wrong mode: %d for buck: %d\n", *opmode, buck);
|
|
return -EINVAL;
|
|
}
|
|
|
|
val &= ~(S2MPS11_BUCK_MODE_MASK << S2MPS11_BUCK_MODE_SHIFT);
|
|
val |= mode;
|
|
ret = pmic_write(dev->parent, addr, &val, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int s2mps11_buck_enable(struct udevice *dev, int op, bool *enable)
|
|
{
|
|
int ret, on_off;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
ret = s2mps11_buck_mode(dev, op, &on_off);
|
|
if (ret)
|
|
return ret;
|
|
switch (on_off) {
|
|
case OP_OFF:
|
|
*enable = false;
|
|
break;
|
|
case OP_ON:
|
|
*enable = true;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
} else if (op == PMIC_OP_SET) {
|
|
if (*enable)
|
|
on_off = OP_ON;
|
|
else
|
|
on_off = OP_OFF;
|
|
|
|
ret = s2mps11_buck_mode(dev, op, &on_off);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int buck_get_value(struct udevice *dev)
|
|
{
|
|
int uV;
|
|
int ret;
|
|
|
|
ret = s2mps11_buck_val(dev, PMIC_OP_GET, &uV);
|
|
if (ret)
|
|
return ret;
|
|
return uV;
|
|
}
|
|
|
|
static int buck_set_value(struct udevice *dev, int uV)
|
|
{
|
|
return s2mps11_buck_val(dev, PMIC_OP_SET, &uV);
|
|
}
|
|
|
|
static int buck_get_enable(struct udevice *dev)
|
|
{
|
|
bool enable = false;
|
|
int ret;
|
|
|
|
ret = s2mps11_buck_enable(dev, PMIC_OP_GET, &enable);
|
|
if (ret)
|
|
return ret;
|
|
return enable;
|
|
}
|
|
|
|
static int buck_set_enable(struct udevice *dev, bool enable)
|
|
{
|
|
return s2mps11_buck_enable(dev, PMIC_OP_SET, &enable);
|
|
}
|
|
|
|
static int buck_get_mode(struct udevice *dev)
|
|
{
|
|
int mode;
|
|
int ret;
|
|
|
|
ret = s2mps11_buck_mode(dev, PMIC_OP_GET, &mode);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return mode;
|
|
}
|
|
|
|
static int buck_set_mode(struct udevice *dev, int mode)
|
|
{
|
|
return s2mps11_buck_mode(dev, PMIC_OP_SET, &mode);
|
|
}
|
|
|
|
static int s2mps11_buck_probe(struct udevice *dev)
|
|
{
|
|
struct dm_regulator_uclass_plat *uc_pdata;
|
|
|
|
uc_pdata = dev_get_uclass_plat(dev);
|
|
|
|
uc_pdata->type = REGULATOR_TYPE_BUCK;
|
|
uc_pdata->mode = s2mps11_buck_modes;
|
|
uc_pdata->mode_count = ARRAY_SIZE(s2mps11_buck_modes);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dm_regulator_ops s2mps11_buck_ops = {
|
|
.get_value = buck_get_value,
|
|
.set_value = buck_set_value,
|
|
.get_enable = buck_get_enable,
|
|
.set_enable = buck_set_enable,
|
|
.get_mode = buck_get_mode,
|
|
.set_mode = buck_set_mode,
|
|
};
|
|
|
|
U_BOOT_DRIVER(s2mps11_buck) = {
|
|
.name = S2MPS11_BUCK_DRIVER,
|
|
.id = UCLASS_REGULATOR,
|
|
.ops = &s2mps11_buck_ops,
|
|
.probe = s2mps11_buck_probe,
|
|
};
|
|
|
|
static int s2mps11_ldo_hex2volt(int ldo, int hex)
|
|
{
|
|
unsigned int uV = 0;
|
|
|
|
if (hex > S2MPS11_LDO_VOLT_MAX_HEX) {
|
|
pr_err("Value: %#x is wrong for LDO%d", hex, ldo);
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (ldo) {
|
|
case 1:
|
|
case 6:
|
|
case 11:
|
|
case 22:
|
|
case 23:
|
|
case 27:
|
|
case 35:
|
|
uV = hex * S2MPS11_LDO_STEP + S2MPS11_LDO_UV_MIN;
|
|
break;
|
|
default:
|
|
uV = hex * S2MPS11_LDO_STEP * 2 + S2MPS11_LDO_UV_MIN;
|
|
break;
|
|
}
|
|
|
|
return uV;
|
|
}
|
|
|
|
static int s2mps11_ldo_volt2hex(int ldo, int uV)
|
|
{
|
|
int hex = 0;
|
|
|
|
switch (ldo) {
|
|
case 1:
|
|
case 6:
|
|
case 11:
|
|
case 22:
|
|
case 23:
|
|
case 27:
|
|
case 35:
|
|
hex = (uV - S2MPS11_LDO_UV_MIN) / S2MPS11_LDO_STEP;
|
|
break;
|
|
default:
|
|
hex = (uV - S2MPS11_LDO_UV_MIN) / (S2MPS11_LDO_STEP * 2);
|
|
break;
|
|
}
|
|
|
|
if (hex >= 0 && hex <= S2MPS11_LDO_VOLT_MAX_HEX)
|
|
return hex;
|
|
|
|
pr_err("Value: %d uV is wrong for LDO%d", uV, ldo);
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int s2mps11_ldo_val(struct udevice *dev, int op, int *uV)
|
|
{
|
|
unsigned int addr;
|
|
unsigned char val;
|
|
int hex, ldo, ret;
|
|
|
|
ldo = dev->driver_data;
|
|
if (ldo < 1 || ldo > S2MPS11_LDO_NUM) {
|
|
pr_err("Wrong ldo number: %d\n", ldo);
|
|
return -EINVAL;
|
|
}
|
|
|
|
addr = S2MPS11_REG_L1CTRL + ldo - 1;
|
|
|
|
ret = pmic_read(dev->parent, addr, &val, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
*uV = 0;
|
|
val &= S2MPS11_LDO_VOLT_MASK;
|
|
ret = s2mps11_ldo_hex2volt(ldo, val);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
*uV = ret;
|
|
return 0;
|
|
}
|
|
|
|
hex = s2mps11_ldo_volt2hex(ldo, *uV);
|
|
if (hex < 0)
|
|
return hex;
|
|
|
|
val &= ~S2MPS11_LDO_VOLT_MASK;
|
|
val |= hex;
|
|
ret = pmic_write(dev->parent, addr, &val, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int s2mps11_ldo_mode(struct udevice *dev, int op, int *opmode)
|
|
{
|
|
unsigned int addr, mode;
|
|
unsigned char val;
|
|
int ldo, ret;
|
|
|
|
ldo = dev->driver_data;
|
|
if (ldo < 1 || ldo > S2MPS11_LDO_NUM) {
|
|
pr_err("Wrong ldo number: %d\n", ldo);
|
|
return -EINVAL;
|
|
}
|
|
addr = S2MPS11_REG_L1CTRL + ldo - 1;
|
|
|
|
ret = pmic_read(dev->parent, addr, &val, 1);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
val &= (S2MPS11_LDO_MODE_MASK << S2MPS11_LDO_MODE_SHIFT);
|
|
switch (val) {
|
|
case S2MPS11_LDO_MODE_OFF:
|
|
*opmode = OP_OFF;
|
|
break;
|
|
case S2MPS11_LDO_MODE_STANDBY:
|
|
*opmode = OP_STANDBY;
|
|
break;
|
|
case S2MPS11_LDO_MODE_STANDBY_LPM:
|
|
*opmode = OP_STANDBY_LPM;
|
|
break;
|
|
case S2MPS11_LDO_MODE_ON:
|
|
*opmode = OP_ON;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
switch (*opmode) {
|
|
case OP_OFF:
|
|
mode = S2MPS11_LDO_MODE_OFF;
|
|
break;
|
|
case OP_STANDBY:
|
|
mode = S2MPS11_LDO_MODE_STANDBY;
|
|
break;
|
|
case OP_STANDBY_LPM:
|
|
mode = S2MPS11_LDO_MODE_STANDBY_LPM;
|
|
break;
|
|
case OP_ON:
|
|
mode = S2MPS11_LDO_MODE_ON;
|
|
break;
|
|
default:
|
|
pr_err("Wrong mode: %d for ldo: %d\n", *opmode, ldo);
|
|
return -EINVAL;
|
|
}
|
|
|
|
val &= ~(S2MPS11_LDO_MODE_MASK << S2MPS11_LDO_MODE_SHIFT);
|
|
val |= mode;
|
|
ret = pmic_write(dev->parent, addr, &val, 1);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int s2mps11_ldo_enable(struct udevice *dev, int op, bool *enable)
|
|
{
|
|
int ret, on_off;
|
|
|
|
if (op == PMIC_OP_GET) {
|
|
ret = s2mps11_ldo_mode(dev, op, &on_off);
|
|
if (ret)
|
|
return ret;
|
|
switch (on_off) {
|
|
case OP_OFF:
|
|
*enable = false;
|
|
break;
|
|
case OP_ON:
|
|
*enable = true;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
} else if (op == PMIC_OP_SET) {
|
|
if (*enable)
|
|
on_off = OP_ON;
|
|
else
|
|
on_off = OP_OFF;
|
|
|
|
ret = s2mps11_ldo_mode(dev, op, &on_off);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ldo_get_value(struct udevice *dev)
|
|
{
|
|
int uV;
|
|
int ret;
|
|
|
|
ret = s2mps11_ldo_val(dev, PMIC_OP_GET, &uV);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return uV;
|
|
}
|
|
|
|
static int ldo_set_value(struct udevice *dev, int uV)
|
|
{
|
|
return s2mps11_ldo_val(dev, PMIC_OP_SET, &uV);
|
|
}
|
|
|
|
static int ldo_get_enable(struct udevice *dev)
|
|
{
|
|
bool enable = false;
|
|
int ret;
|
|
|
|
ret = s2mps11_ldo_enable(dev, PMIC_OP_GET, &enable);
|
|
if (ret)
|
|
return ret;
|
|
return enable;
|
|
}
|
|
|
|
static int ldo_set_enable(struct udevice *dev, bool enable)
|
|
{
|
|
int ret;
|
|
|
|
ret = s2mps11_ldo_enable(dev, PMIC_OP_SET, &enable);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Wait the "enable delay" for voltage to start to rise */
|
|
udelay(15);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ldo_get_mode(struct udevice *dev)
|
|
{
|
|
int mode, ret;
|
|
|
|
ret = s2mps11_ldo_mode(dev, PMIC_OP_GET, &mode);
|
|
if (ret)
|
|
return ret;
|
|
return mode;
|
|
}
|
|
|
|
static int ldo_set_mode(struct udevice *dev, int mode)
|
|
{
|
|
return s2mps11_ldo_mode(dev, PMIC_OP_SET, &mode);
|
|
}
|
|
|
|
static int s2mps11_ldo_probe(struct udevice *dev)
|
|
{
|
|
struct dm_regulator_uclass_plat *uc_pdata;
|
|
|
|
uc_pdata = dev_get_uclass_plat(dev);
|
|
uc_pdata->type = REGULATOR_TYPE_LDO;
|
|
uc_pdata->mode = s2mps11_ldo_modes;
|
|
uc_pdata->mode_count = ARRAY_SIZE(s2mps11_ldo_modes);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dm_regulator_ops s2mps11_ldo_ops = {
|
|
.get_value = ldo_get_value,
|
|
.set_value = ldo_set_value,
|
|
.get_enable = ldo_get_enable,
|
|
.set_enable = ldo_set_enable,
|
|
.get_mode = ldo_get_mode,
|
|
.set_mode = ldo_set_mode,
|
|
};
|
|
|
|
U_BOOT_DRIVER(s2mps11_ldo) = {
|
|
.name = S2MPS11_LDO_DRIVER,
|
|
.id = UCLASS_REGULATOR,
|
|
.ops = &s2mps11_ldo_ops,
|
|
.probe = s2mps11_ldo_probe,
|
|
};
|