/*!
* This function returns the PMIC version in system.
*
* @param ver pointer to the pmic_version_t structure
*
* @return This function returns PMIC version.
*/
void pmic_get_revision(pmic_version_t * ver)
{
int rev_id = 0;
int rev1 = 0;
int rev2 = 0;
int finid = 0;
int icid = 0;
ver->id = PMIC_MC13783;
pmic_read(REG_REVISION, &rev_id);
rev1 = (rev_id & 0x018) >> 3;
rev2 = (rev_id & 0x007);
icid = (rev_id & 0x01C0) >> 6;
finid = (rev_id & 0x01E00) >> 9;
/* Ver 0.2 is actually 3.2a. Report as 3.2 */
if ((rev1 == 0) && (rev2 == 2)) {
rev1 = 3;
}
if (rev1 == 0 || icid != 2) {
ver->revision = -1;
printk(KERN_NOTICE
"mc13783: Not detected.\tAccess failed\t!!!\n");
} else {
ver->revision = ((rev1 * 10) + rev2);
printk(KERN_INFO "mc13783 Rev %d.%d FinVer %x detected\n", rev1,
rev2, finid);
}
return;
}
/* Test PMIC I/O */
static int dm_test_power_pmic_io(struct unit_test_state *uts)
{
const char *name = "sandbox_pmic";
uint8_t out_buffer, in_buffer;
struct udevice *dev;
int reg_count, i;
ut_assertok(pmic_get(name, &dev));
reg_count = pmic_reg_count(dev);
ut_asserteq(reg_count, SANDBOX_PMIC_REG_COUNT);
/*
* Test PMIC I/O - write and read a loop counter.
* usually we can't write to all PMIC's registers in the real hardware,
* but we can to the sandbox pmic.
*/
for (i = 0; i < reg_count; i++) {
out_buffer = i;
ut_assertok(pmic_write(dev, i, &out_buffer, 1));
ut_assertok(pmic_read(dev, i, &in_buffer, 1));
ut_asserteq(out_buffer, in_buffer);
}
return 0;
}
static ssize_t mc13892_store(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
int reg, value, ret;
char *p;
reg = simple_strtoul(buf, NULL, 10);
p = NULL;
p = memchr(buf, ' ', count);
if (p == NULL) {
pmic_read(reg, &value);
pr_debug("reg%02d: %06x\n", reg, value);
return count;
}
p += 1;
value = simple_strtoul(p, NULL, 16);
ret = pmic_write(reg, value);
if (ret == 0)
pr_debug("write reg%02d: %06x\n", reg, value);
else
pr_debug("register update failed\n");
return count;
}
unsigned int pmic_get_active_events(unsigned int *active_events)
{
unsigned int count = 0;
unsigned int faults;
int bit_set;
/* Check for any relevant PMIC faults */
pmic_read(REG_MC34704_FAULTS, &faults);
faults &= events_enabled;
/*
* Mask all active events, because there is no way to acknowledge
* or dismiss them in the PMIC -- they're sticky.
*/
events_enabled &= ~faults;
/* Account for all unmasked faults */
while (faults) {
bit_set = ffs(faults) - 1;
*(active_events + count) = bit_set;
count++;
faults ^= (1 << bit_set);
}
return count;
}
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 ssize_t pmic_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
int i, value;
int offset = (REG_TEST4 + 1) / 4;
for (i = 0; i < offset; i++) {
pmic_read(i, &value);
pr_info("reg%02d: %06x\t\t", i, value);
pmic_read(i + offset, &value);
pr_info("reg%02d: %06x\t\t", i + offset, value);
pmic_read(i + offset * 2, &value);
pr_info("reg%02d: %06x\t\t", i + offset * 2, value);
pmic_read(i + offset * 3, &value);
pr_info("reg%02d: %06x\n", i + offset * 3, value);
}
return 0;
}
/*!
* Get the current version of the Altas part
*/
int get_pmic_revision(void)
{
int rev_id = 0;
int finid = 0;
pmic_read(REG_IDENTIFICATION, &rev_id);
finid = (rev_id & 0x01E00) >> 9;
return finid;
}
static int axp192_usb_online(void)
{
int ret;
uint8_t val;
struct pmic_charger *charger = &pmic_charger;
ret = pmic_read(charger->master, AXP192_POWER_STATE, &val);
if (ret < 0)
return ret;
return (val >> 5) & 0x01;
}
static int max77686_buck_val(struct udevice *dev, int op, int *uV)
{
unsigned int hex, ret, mask, adr;
unsigned char val;
int buck;
buck = dev->driver_data;
if (buck < 1 || buck > MAX77686_BUCK_NUM) {
error("Wrong buck number: %d", buck);
return -EINVAL;
}
if (op == PMIC_OP_GET)
*uV = 0;
/* &buck_out = ctrl + 1 */
adr = max77686_buck_addr[buck] + 1;
/* mask */
switch (buck) {
case 2:
case 3:
case 4:
/* Those use voltage scallers - will support in the future */
mask = MAX77686_BUCK234_VOLT_MASK;
return -ENOSYS;
default:
mask = MAX77686_BUCK_VOLT_MASK;
}
ret = pmic_read(dev->parent, adr, &val, 1);
if (ret)
return ret;
if (op == PMIC_OP_GET) {
val &= mask;
ret = max77686_buck_hex2volt(buck, val);
if (ret < 0)
return ret;
*uV = ret;
return 0;
}
hex = max77686_buck_volt2hex(buck, *uV);
if (hex < 0)
return hex;
val &= ~mask;
val |= hex;
ret = pmic_write(dev->parent, adr, &val, 1);
return ret;
}
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;
}
/*!
* This function is called by PMIC clients to read a register on PMIC.
*
* @param reg number of register
* @param reg_value return value of register
* @param reg_mask Bitmap mask indicating which bits to modify
*
* @return This function returns PMIC_SUCCESS if successful.
*/
PMIC_STATUS pmic_read_reg(int reg, unsigned int *reg_value,
unsigned int reg_mask)
{
int ret = 0;
unsigned int temp = 0;
ret = pmic_read(reg, &temp);
if (ret != PMIC_SUCCESS) {
return PMIC_ERROR;
}
*reg_value = (temp & reg_mask);
pr_debug("Read REG[ %d ] = 0x%x\n", reg, *reg_value);
return ret;
}
/*!
* This function returns the PMIC version in system.
*
* @param ver pointer to the pmic_version_t structure
*
* @return This function returns PMIC version.
*/
void mc13892_get_revision(pmic_version_t *ver)
{
int rev_id = 0;
int rev1 = 0;
int rev2 = 0;
int finid = 0;
int icid = 0;
ver->id = PMIC_MC13892;
pmic_read(REG_IDENTIFICATION, &rev_id);
rev1 = (rev_id & 0x018) >> 3;
rev2 = (rev_id & 0x007);
icid = (rev_id & 0x01C0) >> 6;
finid = (rev_id & 0x01E00) >> 9;
ver->revision = ((rev1 * 10) + rev2);
printk(KERN_INFO "mc13892 Rev %d.%d FinVer %x detected\n", rev1,
rev2, finid);
}
static int max77686_ldo_val(struct udevice *dev, int op, int *uV)
{
unsigned int ret, hex, adr;
unsigned char val;
int ldo;
if (op == PMIC_OP_GET)
*uV = 0;
ldo = dev->driver_data;
if (ldo < 1 || ldo > MAX77686_LDO_NUM) {
error("Wrong ldo number: %d", ldo);
return -EINVAL;
}
adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;
ret = pmic_read(dev->parent, adr, &val, 1);
if (ret)
return ret;
if (op == PMIC_OP_GET) {
val &= MAX77686_LDO_VOLT_MASK;
ret = max77686_ldo_hex2volt(ldo, val);
if (ret < 0)
return ret;
*uV = ret;
return 0;
}
hex = max77686_ldo_volt2hex(ldo, *uV);
if (hex < 0)
return hex;
val &= ~MAX77686_LDO_VOLT_MASK;
val |= hex;
ret = pmic_write(dev->parent, adr, &val, 1);
return ret;
}
static int max77686_buck_mode(struct udevice *dev, int op, int *opmode)
{
unsigned int ret, mask, adr, mode, mode_shift;
unsigned char val;
int buck;
buck = dev->driver_data;
if (buck < 1 || buck > MAX77686_BUCK_NUM) {
error("Wrong buck number: %d", buck);
return -EINVAL;
}
adr = max77686_buck_addr[buck];
/* mask */
switch (buck) {
case 2:
case 3:
case 4:
mode_shift = MAX77686_BUCK_MODE_SHIFT_2;
break;
default:
mode_shift = MAX77686_BUCK_MODE_SHIFT_1;
}
mask = MAX77686_BUCK_MODE_MASK << mode_shift;
ret = pmic_read(dev->parent, adr, &val, 1);
if (ret)
return ret;
if (op == PMIC_OP_GET) {
val &= mask;
val >>= mode_shift;
ret = max77686_buck_hex2mode(buck, val);
if (ret < 0)
return ret;
*opmode = ret;
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;
}
/*!
* This function is called by PMIC clients to write a register on PMIC.
*
* @param reg number of register
* @param reg_value New value of register
* @param reg_mask Bitmap mask indicating which bits to modify
*
* @return This function returns PMIC_SUCCESS if successful.
*/
PMIC_STATUS pmic_write_reg(int reg, unsigned int reg_value,
unsigned int reg_mask)
{
int ret = 0;
unsigned int temp = 0;
ret = pmic_read(reg, &temp);
if (ret != PMIC_SUCCESS) {
return PMIC_ERROR;
}
temp = (temp & (~reg_mask)) | reg_value;
#ifdef CONFIG_MXC_PMIC_MC13783
if (reg == REG_POWER_MISCELLANEOUS)
temp &= 0xFFFE7FFF;
#endif
ret = pmic_write(reg, temp);
if (ret != PMIC_SUCCESS) {
return PMIC_ERROR;
}
pr_debug("Write REG[ %d ] = 0x%x\n", reg, reg_value);
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 max77686_ldo_mode(struct udevice *dev, int op, int *opmode)
{
unsigned int ret, adr, mode;
unsigned char val;
int ldo;
if (op == PMIC_OP_GET)
*opmode = -EINVAL;
ldo = dev->driver_data;
if (ldo < 1 || ldo > MAX77686_LDO_NUM) {
error("Wrong ldo number: %d", ldo);
return -EINVAL;
}
adr = MAX77686_REG_PMIC_LDO1CTRL1 + ldo - 1;
ret = pmic_read(dev->parent, adr, &val, 1);
if (ret)
return ret;
if (op == PMIC_OP_GET) {
val &= MAX77686_LDO_MODE_MASK;
ret = max77686_ldo_hex2mode(ldo, val);
if (ret < 0)
return ret;
*opmode = ret;
return 0;
}
/* mode */
switch (*opmode) {
case OPMODE_OFF:
mode = MAX77686_LDO_MODE_OFF;
break;
case OPMODE_LPM:
switch (ldo) {
case 2:
case 6:
case 7:
case 8:
case 10:
case 11:
case 12:
case 14:
case 15:
case 16:
return -EINVAL;
default:
mode = MAX77686_LDO_MODE_LPM;
}
break;
case OPMODE_STANDBY:
switch (ldo) {
case 2:
case 6:
case 7:
case 8:
case 10:
case 11:
case 12:
case 14:
case 15:
case 16:
mode = MAX77686_LDO_MODE_STANDBY;
break;
default:
return -EINVAL;
}
break;
case OPMODE_STANDBY_LPM:
mode = MAX77686_LDO_MODE_STANDBY_LPM;
break;
case OPMODE_ON:
mode = MAX77686_LDO_MODE_ON;
break;
default:
mode = 0xff;
}
if (mode == 0xff) {
error("Wrong mode: %d for ldo%d", *opmode, ldo);
return -EINVAL;
}
val &= ~MAX77686_LDO_MODE_MASK;
val |= mode;
ret = pmic_write(dev->parent, adr, &val, 1);
return ret;
}