diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/pmbus/lm25066.c | 73 |
1 files changed, 21 insertions, 52 deletions
diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c index c299392716a..5489d70015c 100644 --- a/drivers/hwmon/pmbus/lm25066.c +++ b/drivers/hwmon/pmbus/lm25066.c @@ -2,6 +2,7 @@ * Hardware monitoring driver for LM25066 / LM5064 / LM5066 * * Copyright (c) 2011 Ericsson AB. + * Copyright (c) 2013 Guenter Roeck * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -56,42 +57,27 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg) const struct lm25066_data *data = to_lm25066_data(info); int ret; - if (page > 1) - return -ENXIO; - - /* Map READ_VAUX into READ_VOUT register on page 1 */ - if (page == 1) { - switch (reg) { - case PMBUS_READ_VOUT: - ret = pmbus_read_word_data(client, 0, - LM25066_READ_VAUX); - if (ret < 0) - break; - /* Adjust returned value to match VOUT coefficients */ - switch (data->id) { - case lm25066: - /* VOUT: 4.54 mV VAUX: 283.2 uV LSB */ - ret = DIV_ROUND_CLOSEST(ret * 2832, 45400); - break; - case lm5064: - /* VOUT: 4.53 mV VAUX: 700 uV LSB */ - ret = DIV_ROUND_CLOSEST(ret * 70, 453); - break; - case lm5066: - /* VOUT: 2.18 mV VAUX: 725 uV LSB */ - ret = DIV_ROUND_CLOSEST(ret * 725, 2180); - break; - } + switch (reg) { + case PMBUS_VIRT_READ_VMON: + ret = pmbus_read_word_data(client, 0, LM25066_READ_VAUX); + if (ret < 0) + break; + /* Adjust returned value to match VIN coefficients */ + switch (data->id) { + case lm25066: + /* VIN: 4.54 mV VAUX: 283.2 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 2832, 45400); + break; + case lm5064: + /* VIN: 4.53 mV VAUX: 700 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 70, 453); break; - default: - /* No other valid registers on page 1 */ - ret = -ENXIO; + case lm5066: + /* VIN: 2.18 mV VAUX: 725 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 725, 2180); break; } - goto done; - } - - switch (reg) { + break; case PMBUS_READ_IIN: ret = pmbus_read_word_data(client, 0, LM25066_MFR_READ_IIN); break; @@ -128,7 +114,6 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg) ret = -ENODATA; break; } -done: return ret; } @@ -137,9 +122,6 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg, { int ret; - if (page > 1) - return -ENXIO; - switch (reg) { case PMBUS_IIN_OC_WARN_LIMIT: ret = pmbus_write_word_data(client, 0, @@ -161,17 +143,6 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg, return ret; } -static int lm25066_write_byte(struct i2c_client *client, int page, u8 value) -{ - if (page > 1) - return -ENXIO; - - if (page <= 0) - return pmbus_write_byte(client, page, value); - - return 0; -} - static int lm25066_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -195,7 +166,7 @@ static int lm25066_probe(struct i2c_client *client, data->id = id->driver_data; info = &data->info; - info->pages = 2; + info->pages = 1; info->format[PSC_VOLTAGE_IN] = direct; info->format[PSC_VOLTAGE_OUT] = direct; info->format[PSC_CURRENT_IN] = direct; @@ -206,14 +177,12 @@ static int lm25066_probe(struct i2c_client *client, info->b[PSC_TEMPERATURE] = 0; info->R[PSC_TEMPERATURE] = 0; - info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VMON | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_PIN | PMBUS_HAVE_IIN | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; - info->func[1] = PMBUS_HAVE_VOUT; info->read_word_data = lm25066_read_word_data; info->write_word_data = lm25066_write_word_data; - info->write_byte = lm25066_write_byte; switch (id->driver_data) { case lm25066: |