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/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <ec/google/chromeec/ec.h>
#include <soc/mt6359p.h>
#include <soc/mt6360.h>
#include <soc/mt6691.h>
#include <soc/regulator.h>
#define MT6691_I2C_NUM 7
static int get_mt6360_regulator_id(enum mtk_regulator regulator)
{
switch (regulator) {
case MTK_REGULATOR_VDD2:
return MT6360_BUCK1;
case MTK_REGULATOR_VDDQ:
return MT6360_BUCK2;
case MTK_REGULATOR_VCC:
return MT6360_LDO5;
case MTK_REGULATOR_VCCQ:
return MT6360_LDO3;
default:
break;
}
return -1;
}
static int get_mt6359p_regulator_id(enum mtk_regulator regulator)
{
return regulator == MTK_REGULATOR_VCORE ? MT6359P_GPU11 : -1;
}
static int get_mt6691_regulator_id(enum mtk_regulator regulator)
{
return regulator == MTK_REGULATOR_VMDDR ? MT6691_I2C_NUM : -1;
}
static int check_regulator_control(enum mtk_regulator regulator)
{
/*
* MT6880 is not controlled by SW.
* No need to control it.
*/
if (regulator == MTK_REGULATOR_VDD1) {
printk(BIOS_WARNING,
"[%d] MT6880 is not controlled by SW.\n", regulator);
return -1;
}
return 0;
}
void mainboard_set_regulator_voltage(enum mtk_regulator regulator, uint32_t voltage_uv)
{
if (check_regulator_control(regulator) < 0)
return;
int id;
id = get_mt6360_regulator_id(regulator);
if (id >= 0) {
if (CONFIG(BOARD_GOOGLE_CHERRY)) {
mt6360_set_voltage(id, voltage_uv);
} else {
uint32_t voltage_mv = voltage_uv / 1000;
if (google_chromeec_regulator_set_voltage(id, voltage_mv,
voltage_mv) < 0) {
printk(BIOS_WARNING,
"Failed to set voltage by ec: %d\n", regulator);
}
}
return;
}
id = get_mt6359p_regulator_id(regulator);
if (id >= 0) {
mt6359p_buck_set_voltage(id, voltage_uv);
return;
}
id = get_mt6691_regulator_id(regulator);
if (id >= 0) {
mt6691_set_voltage(id, voltage_uv);
return;
}
printk(BIOS_ERR, "Invalid regulator ID: %d\n", regulator);
}
uint32_t mainboard_get_regulator_voltage(enum mtk_regulator regulator)
{
if (check_regulator_control(regulator) < 0)
return 0;
int id;
id = get_mt6360_regulator_id(regulator);
if (id >= 0) {
if (CONFIG(BOARD_GOOGLE_CHERRY)) {
return mt6360_get_voltage(id);
} else {
uint32_t voltage_mv = 0;
if (google_chromeec_regulator_get_voltage(id, &voltage_mv) < 0) {
printk(BIOS_WARNING,
"Failed to get voltage by ec: %d\n", regulator);
return 0;
}
return voltage_mv * 1000;
}
}
id = get_mt6359p_regulator_id(regulator);
if (id >= 0)
return mt6359p_buck_get_voltage(id);
id = get_mt6691_regulator_id(regulator);
if (id >= 0)
return mt6691_get_voltage(id);
printk(BIOS_ERR, "Invalid regulator ID: %d\n", regulator);
return 0;
}
int mainboard_enable_regulator(enum mtk_regulator regulator, bool enable)
{
if (check_regulator_control(regulator) < 0)
return 0;
/* Return 0 if the regulator is already enabled or disabled. */
if (mainboard_regulator_is_enabled(regulator) == enable)
return 0;
int id;
id = get_mt6360_regulator_id(regulator);
if (id >= 0) {
if (CONFIG(BOARD_GOOGLE_CHERRY)) {
mt6360_enable(id, enable);
return 0;
} else {
if (google_chromeec_regulator_enable(id, enable) < 0) {
printk(BIOS_WARNING,
"Failed to enable regulator by ec: %d\n", regulator);
return -1;
}
return 0;
}
}
printk(BIOS_ERR, "Invalid regulator ID: %d\n", regulator);
return -1;
}
bool mainboard_regulator_is_enabled(enum mtk_regulator regulator)
{
if (check_regulator_control(regulator) < 0)
return false;
int id;
id = get_mt6360_regulator_id(regulator);
if (id >= 0) {
if (CONFIG(BOARD_GOOGLE_CHERRY)) {
return !!mt6360_is_enabled(id);
} else {
uint8_t enabled;
if (google_chromeec_regulator_is_enabled(id, &enabled) < 0) {
printk(BIOS_WARNING,
"Failed to retrieve is_enabled by ec; assuming disabled\n");
return 0;
}
return !!enabled;
}
}
printk(BIOS_ERR, "Invalid regulator ID: %d\n; assuming disabled", regulator);
return false;
}
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