diff options
Diffstat (limited to 'drivers/hwmon/pmbus/ltc2978.c')
| -rw-r--r-- | drivers/hwmon/pmbus/ltc2978.c | 69 |
1 files changed, 64 insertions, 5 deletions
diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c index 4c306943383a..8f5be520a15d 100644 --- a/drivers/hwmon/pmbus/ltc2978.c +++ b/drivers/hwmon/pmbus/ltc2978.c @@ -23,11 +23,11 @@ enum chips { /* Managers */ ltc2972, ltc2974, ltc2975, ltc2977, ltc2978, ltc2979, ltc2980, /* Controllers */ - ltc3880, ltc3882, ltc3883, ltc3884, ltc3886, ltc3887, ltc3889, ltc7132, - ltc7841, ltc7880, + lt7170, lt7171, ltc3880, ltc3882, ltc3883, ltc3884, ltc3886, ltc3887, + ltc3889, ltc7132, ltc7841, ltc7880, /* Modules */ - ltm2987, ltm4664, ltm4675, ltm4676, ltm4677, ltm4678, ltm4680, ltm4686, - ltm4700, + ltm2987, ltm4664, ltm4673, ltm4675, ltm4676, ltm4677, ltm4678, ltm4680, + ltm4686, ltm4700, }; /* Common for all chips */ @@ -62,6 +62,7 @@ enum chips { #define LTC2978_ID_MASK 0xfff0 +#define LT7170_ID 0x1C10 #define LTC2972_ID 0x0310 #define LTC2974_ID 0x0210 #define LTC2975_ID 0x0220 @@ -86,6 +87,8 @@ enum chips { #define LTM2987_ID_A 0x8010 /* A/B for two die IDs */ #define LTM2987_ID_B 0x8020 #define LTM4664_ID 0x4120 +#define LTM4673_ID_REV1 0x0230 +#define LTM4673_ID 0x4480 #define LTM4675_ID 0x47a0 #define LTM4676_ID_REV1 0x4400 #define LTM4676_ID_REV2 0x4480 @@ -535,6 +538,8 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page, } static const struct i2c_device_id ltc2978_id[] = { + {"lt7170", lt7170}, + {"lt7171", lt7171}, {"ltc2972", ltc2972}, {"ltc2974", ltc2974}, {"ltc2975", ltc2975}, @@ -554,6 +559,7 @@ static const struct i2c_device_id ltc2978_id[] = { {"ltc7880", ltc7880}, {"ltm2987", ltm2987}, {"ltm4664", ltm4664}, + {"ltm4673", ltm4673}, {"ltm4675", ltm4675}, {"ltm4676", ltm4676}, {"ltm4677", ltm4677}, @@ -612,7 +618,7 @@ static int ltc2978_get_id(struct i2c_client *client) ret = i2c_smbus_read_block_data(client, PMBUS_MFR_ID, buf); if (ret < 0) return ret; - if (ret < 3 || strncmp(buf, "LTC", 3)) + if (ret < 3 || (strncmp(buf, "LTC", 3) && strncmp(buf, "ADI", 3))) return -ENODEV; ret = i2c_smbus_read_block_data(client, PMBUS_MFR_MODEL, buf); @@ -627,6 +633,25 @@ static int ltc2978_get_id(struct i2c_client *client) chip_id &= LTC2978_ID_MASK; + if (chip_id == LT7170_ID) { + u8 buf[I2C_SMBUS_BLOCK_MAX]; + int ret; + + ret = i2c_smbus_read_i2c_block_data(client, PMBUS_IC_DEVICE_ID, + sizeof(buf), buf); + if (ret < 0) + return ret; + + if (!strncmp(buf + 1, "LT7170", 6) || + !strncmp(buf + 1, "LT7170-1", 8)) + return lt7170; + if (!strncmp(buf + 1, "LT7171", 6) || + !strncmp(buf + 1, "LT7171-1", 8)) + return lt7171; + + return -ENODEV; + } + if (chip_id == LTC2972_ID) return ltc2972; else if (chip_id == LTC2974_ID) @@ -665,6 +690,8 @@ static int ltc2978_get_id(struct i2c_client *client) return ltm2987; else if (chip_id == LTM4664_ID) return ltm4664; + else if (chip_id == LTM4673_ID || chip_id == LTM4673_ID_REV1) + return ltm4673; else if (chip_id == LTM4675_ID) return ltm4675; else if (chip_id == LTM4676_ID_REV1 || chip_id == LTM4676_ID_REV2 || @@ -736,6 +763,20 @@ static int ltc2978_probe(struct i2c_client *client) data->temp2_max = 0x7c00; switch (data->id) { + case lt7170: + case lt7171: + data->features |= FEAT_CLEAR_PEAKS | FEAT_NEEDS_POLLING; + info->read_word_data = ltc3883_read_word_data; + info->pages = LTC3883_NUM_PAGES; + info->format[PSC_VOLTAGE_IN] = ieee754; + info->format[PSC_VOLTAGE_OUT] = ieee754; + info->format[PSC_CURRENT_OUT] = ieee754; + info->format[PSC_TEMPERATURE] = ieee754; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + break; case ltc2972: info->read_word_data = ltc2975_read_word_data; info->pages = LTC2972_NUM_PAGES; @@ -869,6 +910,21 @@ static int ltc2978_probe(struct i2c_client *client) | PMBUS_HAVE_IOUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; break; + case ltm4673: + data->features |= FEAT_NEEDS_POLLING; + info->read_word_data = ltc2975_read_word_data; + info->pages = LTC2974_NUM_PAGES; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_TEMP2; + for (i = 0; i < info->pages; i++) { + info->func[i] |= PMBUS_HAVE_IIN + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_PIN + | PMBUS_HAVE_POUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + } + break; default: return -ENODEV; } @@ -907,6 +963,8 @@ static int ltc2978_probe(struct i2c_client *client) #ifdef CONFIG_OF static const struct of_device_id ltc2978_of_match[] = { + { .compatible = "lltc,lt7170" }, + { .compatible = "lltc,lt7171" }, { .compatible = "lltc,ltc2972" }, { .compatible = "lltc,ltc2974" }, { .compatible = "lltc,ltc2975" }, @@ -926,6 +984,7 @@ static const struct of_device_id ltc2978_of_match[] = { { .compatible = "lltc,ltc7880" }, { .compatible = "lltc,ltm2987" }, { .compatible = "lltc,ltm4664" }, + { .compatible = "lltc,ltm4673" }, { .compatible = "lltc,ltm4675" }, { .compatible = "lltc,ltm4676" }, { .compatible = "lltc,ltm4677" }, |