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arm-trusted-firmware/drivers/st/pmic/stpmu1.c
Antonio Nino Diaz 09d40e0e08 Sanitise includes across codebase 
Enforce full include path for includes. Deprecate old paths.

The following folders inside include/lib have been left unchanged:

- include/lib/cpus/${ARCH}
- include/lib/el3_runtime/${ARCH}

The reason for this change is that having a global namespace for
includes isn't a good idea. It defeats one of the advantages of having
folders and it introduces problems that are sometimes subtle (because
you may not know the header you are actually including if there are two
of them).

For example, this patch had to be created because two headers were
called the same way: e0ea0928d5 ("Fix gpio includes of mt8173 platform
to avoid collision."). More recently, this patch has had similar
problems: 46f9b2c3a2 ("drivers: add tzc380 support").

This problem was introduced in commit 4ecca33988 ("Move include and
source files to logical locations"). At that time, there weren't too
many headers so it wasn't a real issue. However, time has shown that
this creates problems.

Platforms that want to preserve the way they include headers may add the
removed paths to PLAT_INCLUDES, but this is discouraged.

Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2019-01-04 10:43:17 +00:00

601 lines
8.5 KiB
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/*
* Copyright (c) 2016-2018, STMicroelectronics - All Rights Reserved
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <string.h>
#include <common/debug.h>
#include <drivers/st/stpmu1.h>
#include <plat/common/platform.h>
struct regul_struct {
const char *dt_node_name;
const uint16_t *voltage_table;
uint8_t voltage_table_size;
uint8_t control_reg;
uint8_t low_power_reg;
};
static struct i2c_handle_s *stpmu_i2c_handle;
static uint16_t stpmu_i2c_addr;
/* Voltage tables in mV */
static const uint16_t buck1_voltage_table[] = {
600,
625,
650,
675,
700,
725,
750,
775,
800,
825,
850,
875,
900,
925,
950,
975,
1000,
1025,
1050,
1075,
1100,
1125,
1150,
1175,
1200,
1225,
1250,
1275,
1300,
1325,
1350,
1350,
};
static const uint16_t buck2_voltage_table[] = {
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1050,
1050,
1100,
1100,
1150,
1150,
1200,
1200,
1250,
1250,
1300,
1300,
1350,
1350,
1400,
1400,
1450,
1450,
1500,
};
static const uint16_t buck3_voltage_table[] = {
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1000,
1100,
1100,
1100,
1100,
1200,
1200,
1200,
1200,
1300,
1300,
1300,
1300,
1400,
1400,
1400,
1400,
1500,
1600,
1700,
1800,
1900,
2000,
2100,
2200,
2300,
2400,
2500,
2600,
2700,
2800,
2900,
3000,
3100,
3200,
3300,
3400,
};
static const uint16_t buck4_voltage_table[] = {
600,
625,
650,
675,
700,
725,
750,
775,
800,
825,
850,
875,
900,
925,
950,
975,
1000,
1025,
1050,
1075,
1100,
1125,
1150,
1175,
1200,
1225,
1250,
1275,
1300,
1300,
1350,
1350,
1400,
1400,
1450,
1450,
1500,
1600,
1700,
1800,
1900,
2000,
2100,
2200,
2300,
2400,
2500,
2600,
2700,
2800,
2900,
3000,
3100,
3200,
3300,
3400,
3500,
3600,
3700,
3800,
3900,
};
static const uint16_t ldo1_voltage_table[] = {
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1800,
1900,
2000,
2100,
2200,
2300,
2400,
2500,
2600,
2700,
2800,
2900,
3000,
3100,
3200,
3300,
};
static const uint16_t ldo2_voltage_table[] = {
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1800,
1900,
2000,
2100,
2200,
2300,
2400,
2500,
2600,
2700,
2800,
2900,
3000,
3100,
3200,
3300,
};
static const uint16_t ldo3_voltage_table[] = {
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1800,
1900,
2000,
2100,
2200,
2300,
2400,
2500,
2600,
2700,
2800,
2900,
3000,
3100,
3200,
3300,
3300,
3300,
3300,
3300,
3300,
3300,
0xFFFF, /* VREFDDR */
};
static const uint16_t ldo5_voltage_table[] = {
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1700,
1800,
1900,
2000,
2100,
2200,
2300,
2400,
2500,
2600,
2700,
2800,
2900,
3000,
3100,
3200,
3300,
3400,
3500,
3600,
3700,
3800,
3900,
};
static const uint16_t ldo6_voltage_table[] = {
900,
1000,
1100,
1200,
1300,
1400,
1500,
1600,
1700,
1800,
1900,
2000,
2100,
2200,
2300,
2400,
2500,
2600,
2700,
2800,
2900,
3000,
3100,
3200,
3300,
};
static const uint16_t ldo4_voltage_table[] = {
3300,
};
static const uint16_t vref_ddr_voltage_table[] = {
3300,
};
/* Table of Regulators in PMIC SoC */
static const struct regul_struct regulators_table[] = {
{
.dt_node_name = "buck1",
.voltage_table = buck1_voltage_table,
.voltage_table_size = ARRAY_SIZE(buck1_voltage_table),
.control_reg = BUCK1_CONTROL_REG,
.low_power_reg = BUCK1_PWRCTRL_REG,
},
{
.dt_node_name = "buck2",
.voltage_table = buck2_voltage_table,
.voltage_table_size = ARRAY_SIZE(buck2_voltage_table),
.control_reg = BUCK2_CONTROL_REG,
.low_power_reg = BUCK2_PWRCTRL_REG,
},
{
.dt_node_name = "buck3",
.voltage_table = buck3_voltage_table,
.voltage_table_size = ARRAY_SIZE(buck3_voltage_table),
.control_reg = BUCK3_CONTROL_REG,
.low_power_reg = BUCK3_PWRCTRL_REG,
},
{
.dt_node_name = "buck4",
.voltage_table = buck4_voltage_table,
.voltage_table_size = ARRAY_SIZE(buck4_voltage_table),
.control_reg = BUCK4_CONTROL_REG,
.low_power_reg = BUCK4_PWRCTRL_REG,
},
{
.dt_node_name = "ldo1",
.voltage_table = ldo1_voltage_table,
.voltage_table_size = ARRAY_SIZE(ldo1_voltage_table),
.control_reg = LDO1_CONTROL_REG,
.low_power_reg = LDO1_PWRCTRL_REG,
},
{
.dt_node_name = "ldo2",
.voltage_table = ldo2_voltage_table,
.voltage_table_size = ARRAY_SIZE(ldo2_voltage_table),
.control_reg = LDO2_CONTROL_REG,
.low_power_reg = LDO2_PWRCTRL_REG,
},
{
.dt_node_name = "ldo3",
.voltage_table = ldo3_voltage_table,
.voltage_table_size = ARRAY_SIZE(ldo3_voltage_table),
.control_reg = LDO3_CONTROL_REG,
.low_power_reg = LDO3_PWRCTRL_REG,
},
{
.dt_node_name = "ldo4",
.voltage_table = ldo4_voltage_table,
.voltage_table_size = ARRAY_SIZE(ldo4_voltage_table),
.control_reg = LDO4_CONTROL_REG,
.low_power_reg = LDO4_PWRCTRL_REG,
},
{
.dt_node_name = "ldo5",
.voltage_table = ldo5_voltage_table,
.voltage_table_size = ARRAY_SIZE(ldo5_voltage_table),
.control_reg = LDO5_CONTROL_REG,
.low_power_reg = LDO5_PWRCTRL_REG,
},
{
.dt_node_name = "ldo6",
.voltage_table = ldo6_voltage_table,
.voltage_table_size = ARRAY_SIZE(ldo6_voltage_table),
.control_reg = LDO6_CONTROL_REG,
.low_power_reg = LDO6_PWRCTRL_REG,
},
{
.dt_node_name = "vref_ddr",
.voltage_table = vref_ddr_voltage_table,
.voltage_table_size = ARRAY_SIZE(vref_ddr_voltage_table),
.control_reg = VREF_DDR_CONTROL_REG,
.low_power_reg = VREF_DDR_PWRCTRL_REG,
},
};
#define MAX_REGUL ARRAY_SIZE(regulators_table)
static const struct regul_struct *stpmu1_get_regulator_data(const char *name)
{
uint8_t i;
for (i = 0 ; i < MAX_REGUL ; i++) {
if (strncmp(name, regulators_table[i].dt_node_name,
strlen(regulators_table[i].dt_node_name)) == 0) {
return &regulators_table[i];
}
}
/* Regulator not found */
panic();
return NULL;
}
static uint8_t stpmu1_voltage_find_index(const char *name,
uint16_t millivolts)
{
const struct regul_struct *regul = stpmu1_get_regulator_data(name);
uint8_t i;
for (i = 0 ; i < regul->voltage_table_size ; i++) {
if (regul->voltage_table[i] == millivolts) {
return i;
}
}
/* Voltage not found */
panic();
return 0;
}
int stpmu1_switch_off(void)
{
return stpmu1_register_update(MAIN_CONTROL_REG, 1,
SOFTWARE_SWITCH_OFF_ENABLED);
}
int stpmu1_regulator_enable(const char *name)
{
const struct regul_struct *regul = stpmu1_get_regulator_data(name);
return stpmu1_register_update(regul->control_reg, BIT(0), BIT(0));
}
int stpmu1_regulator_disable(const char *name)
{
const struct regul_struct *regul = stpmu1_get_regulator_data(name);
return stpmu1_register_update(regul->control_reg, 0, BIT(0));
}
uint8_t stpmu1_is_regulator_enabled(const char *name)
{
uint8_t val;
const struct regul_struct *regul = stpmu1_get_regulator_data(name);
if (stpmu1_register_read(regul->control_reg, &val) != 0) {
panic();
}
return (val & 0x1U);
}
int stpmu1_regulator_voltage_set(const char *name, uint16_t millivolts)
{
uint8_t voltage_index = stpmu1_voltage_find_index(name, millivolts);
const struct regul_struct *regul = stpmu1_get_regulator_data(name);
return stpmu1_register_update(regul->control_reg, voltage_index << 2,
0xFC);
}
int stpmu1_register_read(uint8_t register_id, uint8_t *value)
{
return stm32_i2c_mem_read(stpmu_i2c_handle, stpmu_i2c_addr,
(uint16_t)register_id, I2C_MEMADD_SIZE_8BIT,
value, 1, 100000);
}
int stpmu1_register_write(uint8_t register_id, uint8_t value)
{
int status;
status = stm32_i2c_mem_write(stpmu_i2c_handle, stpmu_i2c_addr,
(uint16_t)register_id,
I2C_MEMADD_SIZE_8BIT, &value, 1, 100000);
if (status != 0) {
return status;
}
if ((register_id != WATCHDOG_CONTROL_REG) && (register_id <= 0x40U)) {
uint8_t readval;
status = stpmu1_register_read(register_id, &readval);
if (status != 0) {
return status;
}
if (readval != value) {
return -1;
}
}
return 0;
}
int stpmu1_register_update(uint8_t register_id, uint8_t value, uint8_t mask)
{
int status;
uint8_t val;
status = stpmu1_register_read(register_id, &val);
if (status != 0) {
return status;
}
/* Clear bits to update */
val &= ~mask;
/* Update appropriate bits*/
val |= (value & mask);
/* Send new value on I2C Bus */
return stpmu1_register_write(register_id, val);
}
void stpmu1_bind_i2c(struct i2c_handle_s *i2c_handle, uint16_t i2c_addr)
{
stpmu_i2c_handle = i2c_handle;
stpmu_i2c_addr = i2c_addr;
}
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