diff options
Diffstat (limited to 'drivers/hwmon/pmbus/ltc2978.c')
| -rw-r--r-- | drivers/hwmon/pmbus/ltc2978.c | 44 |
1 files changed, 40 insertions, 4 deletions
diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c index 531aa674a928..6d2592731ba3 100644 --- a/drivers/hwmon/pmbus/ltc2978.c +++ b/drivers/hwmon/pmbus/ltc2978.c @@ -562,7 +562,24 @@ static const struct i2c_device_id ltc2978_id[] = { MODULE_DEVICE_TABLE(i2c, ltc2978_id); #if IS_ENABLED(CONFIG_SENSORS_LTC2978_REGULATOR) +#define LTC2978_ADC_RES 0xFFFF +#define LTC2978_N_ADC 122 +#define LTC2978_MAX_UV (LTC2978_ADC_RES * LTC2978_N_ADC) +#define LTC2978_UV_STEP 1000 +#define LTC2978_N_VOLTAGES ((LTC2978_MAX_UV / LTC2978_UV_STEP) + 1) + static const struct regulator_desc ltc2978_reg_desc[] = { + PMBUS_REGULATOR_STEP("vout", 0, LTC2978_N_VOLTAGES, LTC2978_UV_STEP), + PMBUS_REGULATOR_STEP("vout", 1, LTC2978_N_VOLTAGES, LTC2978_UV_STEP), + PMBUS_REGULATOR_STEP("vout", 2, LTC2978_N_VOLTAGES, LTC2978_UV_STEP), + PMBUS_REGULATOR_STEP("vout", 3, LTC2978_N_VOLTAGES, LTC2978_UV_STEP), + PMBUS_REGULATOR_STEP("vout", 4, LTC2978_N_VOLTAGES, LTC2978_UV_STEP), + PMBUS_REGULATOR_STEP("vout", 5, LTC2978_N_VOLTAGES, LTC2978_UV_STEP), + PMBUS_REGULATOR_STEP("vout", 6, LTC2978_N_VOLTAGES, LTC2978_UV_STEP), + PMBUS_REGULATOR_STEP("vout", 7, LTC2978_N_VOLTAGES, LTC2978_UV_STEP), +}; + +static const struct regulator_desc ltc2978_reg_desc_default[] = { PMBUS_REGULATOR("vout", 0), PMBUS_REGULATOR("vout", 1), PMBUS_REGULATOR("vout", 2), @@ -839,10 +856,29 @@ static int ltc2978_probe(struct i2c_client *client) #if IS_ENABLED(CONFIG_SENSORS_LTC2978_REGULATOR) info->num_regulators = info->pages; - info->reg_desc = ltc2978_reg_desc; - if (info->num_regulators > ARRAY_SIZE(ltc2978_reg_desc)) { - dev_err(&client->dev, "num_regulators too large!"); - info->num_regulators = ARRAY_SIZE(ltc2978_reg_desc); + switch (data->id) { + case ltc2972: + case ltc2974: + case ltc2975: + case ltc2977: + case ltc2978: + case ltc2979: + case ltc2980: + case ltm2987: + info->reg_desc = ltc2978_reg_desc; + if (info->num_regulators > ARRAY_SIZE(ltc2978_reg_desc)) { + dev_warn(&client->dev, "num_regulators too large!"); + info->num_regulators = ARRAY_SIZE(ltc2978_reg_desc); + } + break; + default: + info->reg_desc = ltc2978_reg_desc_default; + if (info->num_regulators > ARRAY_SIZE(ltc2978_reg_desc_default)) { + dev_warn(&client->dev, "num_regulators too large!"); + info->num_regulators = + ARRAY_SIZE(ltc2978_reg_desc_default); + } + break; } #endif |