static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
u16 word)
{
int ret;
if (page)
return -ENXIO;
switch (reg) {
case PMBUS_IOUT_UC_FAULT_LIMIT:
case PMBUS_IOUT_OC_FAULT_LIMIT:
ret = pmbus_write_word_data(client, 0, ADM1275_IOUT_WARN2_LIMIT,
word);
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_IOUT, 0);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VOUT, 0);
break;
case PMBUS_VIRT_RESET_VIN_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VIN, 0);
break;
case PMBUS_VIRT_RESET_PIN_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1276_PEAK_PIN, 0);
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
static int max34440_write_word_data(struct i2c_client *client, int page,
int reg, u16 word)
{
int ret;
switch (reg) {
case PMBUS_VIRT_RESET_VOUT_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX34440_MFR_VOUT_PEAK, 0);
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX34440_MFR_IOUT_PEAK, 0);
break;
case PMBUS_VIRT_RESET_TEMP_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX34440_MFR_TEMPERATURE_PEAK,
0xffff);
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
u16 word)
{
int ret;
if (page > 1)
return -ENXIO;
switch (reg) {
case PMBUS_IIN_OC_WARN_LIMIT:
ret = pmbus_write_word_data(client, 0,
LM25066_MFR_IIN_OC_WARN_LIMIT,
word);
break;
case PMBUS_PIN_OP_WARN_LIMIT:
ret = pmbus_write_word_data(client, 0,
LM25066_MFR_PIN_OP_WARN_LIMIT,
word);
break;
case PMBUS_VIRT_RESET_PIN_HISTORY:
ret = pmbus_write_byte(client, 0, LM25066_CLEAR_PIN_PEAK);
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
static int ltc3815_write_word_data(struct i2c_client *client, int page,
int reg, u16 word)
{
int ret;
switch (reg) {
case PMBUS_VIRT_RESET_IIN_HISTORY:
ret = pmbus_write_word_data(client, page,
LTC3815_MFR_IIN_PEAK, 0);
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
ret = pmbus_write_word_data(client, page,
LTC3815_MFR_IOUT_PEAK, 0);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
ret = pmbus_write_word_data(client, page,
LTC3815_MFR_VOUT_PEAK, 0);
break;
case PMBUS_VIRT_RESET_VIN_HISTORY:
ret = pmbus_write_word_data(client, page,
LTC3815_MFR_VIN_PEAK, 0);
break;
case PMBUS_VIRT_RESET_TEMP_HISTORY:
ret = pmbus_write_word_data(client, page,
LTC3815_MFR_TEMP_PEAK, 0);
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
static int bmr46x_write_word_data(struct i2c_client *client, int page, int reg,
u16 word)
{
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
struct bmr46x_data *data = to_bmr46x_data(info);
int ret, vreg;
if (page > 0)
return -ENXIO;
/*
* Limit register detection.
*/
switch (reg) {
case PMBUS_VOUT_OV_WARN_LIMIT:
case PMBUS_VOUT_UV_WARN_LIMIT:
case PMBUS_IOUT_OC_WARN_LIMIT:
case PMBUS_IOUT_OC_LV_FAULT_LIMIT: /* NotImpl on BMR461 */
return -ENXIO;
default:
if (reg >= PMBUS_VIRT_BASE)
return -ENXIO;
vreg = reg;
break;
}
bmr46x_wait(data);
ret = pmbus_write_word_data(client, page, vreg, word);
data->access = ktime_get();
return ret;
}
static int max34440_write_word_data(struct i2c_client *client, int page,
int reg, u16 word)
{
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
const struct max34440_data *data = to_max34440_data(info);
int ret;
switch (reg) {
case PMBUS_VIRT_RESET_POUT_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX34446_MFR_POUT_PEAK, 0);
if (ret)
break;
ret = pmbus_write_word_data(client, page,
MAX34446_MFR_POUT_AVG, 0);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX34440_MFR_VOUT_MIN, 0x7fff);
if (ret)
break;
ret = pmbus_write_word_data(client, page,
MAX34440_MFR_VOUT_PEAK, 0);
break;
case PMBUS_VIRT_RESET_IOUT_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX34440_MFR_IOUT_PEAK, 0);
if (!ret && data->id == max34446)
ret = pmbus_write_word_data(client, page,
MAX34446_MFR_IOUT_AVG, 0);
break;
case PMBUS_VIRT_RESET_TEMP_HISTORY:
ret = pmbus_write_word_data(client, page,
MAX34440_MFR_TEMPERATURE_PEAK,
0x8000);
if (!ret && data->id == max34446)
ret = pmbus_write_word_data(client, page,
MAX34446_MFR_TEMPERATURE_AVG, 0);
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
static int adm1275_write_word_data(struct i2c_client *client, int page, int reg,
u16 word)
{
int ret;
if (page)
return -EINVAL;
switch (reg) {
case PMBUS_VIRT_RESET_IOUT_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_IOUT, 0);
break;
case PMBUS_VIRT_RESET_VOUT_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VOUT, 0);
break;
case PMBUS_VIRT_RESET_VIN_HISTORY:
ret = pmbus_write_word_data(client, 0, ADM1275_PEAK_VIN, 0);
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
static int zl6100_write_word_data(struct i2c_client *client, int page, int reg,
u16 word)
{
const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
struct zl6100_data *data = to_zl6100_data(info);
int ret, vreg;
if (page > 0)
return -ENXIO;
switch (reg) {
case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
word = zl6100_d2l(DIV_ROUND_CLOSEST(zl6100_l2d(word) * 10, 9));
vreg = MFR_VMON_OV_FAULT_LIMIT;
pmbus_clear_cache(client);
break;
case PMBUS_VIRT_VMON_OV_FAULT_LIMIT:
vreg = MFR_VMON_OV_FAULT_LIMIT;
pmbus_clear_cache(client);
break;
case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
word = zl6100_d2l(DIV_ROUND_CLOSEST(zl6100_l2d(word) * 10, 11));
vreg = MFR_VMON_UV_FAULT_LIMIT;
pmbus_clear_cache(client);
break;
case PMBUS_VIRT_VMON_UV_FAULT_LIMIT:
vreg = MFR_VMON_UV_FAULT_LIMIT;
pmbus_clear_cache(client);
break;
default:
if (reg >= PMBUS_VIRT_BASE)
return -ENXIO;
vreg = reg;
}
zl6100_wait(data);
ret = pmbus_write_word_data(client, page, vreg, word);
data->access = ktime_get();
return ret;
}
static int ltc3815_write_byte(struct i2c_client *client, int page, u8 reg)
{
int ret;
switch (reg) {
case PMBUS_CLEAR_FAULTS:
/*
* LTC3815 does not support the CLEAR_FAULTS command.
* Emulate it by clearing the status register.
*/
ret = pmbus_read_word_data(client, 0, PMBUS_STATUS_WORD);
if (ret > 0) {
pmbus_write_word_data(client, 0, PMBUS_STATUS_WORD,
ret);
ret = 0;
}
break;
default:
ret = -ENODATA;
break;
}
return ret;
}
