diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/pmbus/adm1275.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c index 71770ffbdaf6..c936e2782309 100644 --- a/drivers/hwmon/pmbus/adm1275.c +++ b/drivers/hwmon/pmbus/adm1275.c @@ -23,11 +23,68 @@ #include <linux/i2c.h> #include "pmbus.h" +#define ADM1275_PEAK_IOUT 0xd0 +#define ADM1275_PEAK_VIN 0xd1 +#define ADM1275_PEAK_VOUT 0xd2 #define ADM1275_PMON_CONFIG 0xd4 #define ADM1275_VIN_VOUT_SELECT (1 << 6) #define ADM1275_VRANGE (1 << 5) +static int adm1275_read_word_data(struct i2c_client *client, int page, int reg) +{ + int ret; + + if (page) + return -EINVAL; + + switch (reg) { + case PMBUS_VIRT_READ_IOUT_MAX: + ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_IOUT); + break; + case PMBUS_VIRT_READ_VOUT_MAX: + ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VOUT); + break; + case PMBUS_VIRT_READ_VIN_MAX: + ret = pmbus_read_word_data(client, 0, ADM1275_PEAK_VIN); + break; + case PMBUS_VIRT_RESET_IOUT_HISTORY: + case PMBUS_VIRT_RESET_VOUT_HISTORY: + case PMBUS_VIRT_RESET_VIN_HISTORY: + ret = 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 adm1275_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -58,6 +115,9 @@ static int adm1275_probe(struct i2c_client *client, info->R[PSC_CURRENT_OUT] = -1; info->func[0] = PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT; + info->read_word_data = adm1275_read_word_data; + info->write_word_data = adm1275_write_word_data; + if (config & ADM1275_VRANGE) { info->m[PSC_VOLTAGE_IN] = 19199; info->b[PSC_VOLTAGE_IN] = 0; |