diff options
| -rw-r--r-- | Documentation/hwmon/adm1275 | 20 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/hwmon/pmbus/adm1275.c | 67 |
3 files changed, 80 insertions, 11 deletions
diff --git a/Documentation/hwmon/adm1275 b/Documentation/hwmon/adm1275 index 791bc0bd91e6..39033538eb03 100644 --- a/Documentation/hwmon/adm1275 +++ b/Documentation/hwmon/adm1275 @@ -6,6 +6,10 @@ Supported chips: Prefix: 'adm1075' Addresses scanned: - Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1075.pdf + * Analog Devices ADM1272 + Prefix: 'adm1272' + Addresses scanned: - + Datasheet: www.analog.com/static/imported-files/data_sheets/ADM1272.pdf * Analog Devices ADM1275 Prefix: 'adm1275' Addresses scanned: - @@ -29,11 +33,11 @@ Author: Guenter Roeck <linux@roeck-us.net> Description ----------- -This driver supports hardware monitoring for Analog Devices ADM1075, ADM1275, -ADM1276, ADM1278, ADM1293, and ADM1294 Hot-Swap Controller and Digital -Power Monitors. +This driver supports hardware monitoring for Analog Devices ADM1075, ADM1272, +ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 Hot-Swap Controller and +Digital Power Monitors. -ADM1075, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 are hot-swap +ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 are hot-swap controllers that allow a circuit board to be removed from or inserted into a live backplane. They also feature current and voltage readback via an integrated 12 bit analog-to-digital converter (ADC), accessed using a @@ -100,11 +104,10 @@ power1_input_lowest Lowest observed input power. ADM1293 and ADM1294 only. power1_input_highest Highest observed input power. power1_reset_history Write any value to reset history. - Power attributes are supported on ADM1075, ADM1276, - ADM1293, and ADM1294. + Power attributes are supported on ADM1075, ADM1272, + ADM1276, ADM1293, and ADM1294. temp1_input Chip temperature. - Temperature attributes are only available on ADM1278. temp1_max Maximum chip temperature. temp1_max_alarm Temperature alarm. temp1_crit Critical chip temperature. @@ -112,4 +115,5 @@ temp1_crit_alarm Critical temperature high alarm. temp1_highest Highest observed temperature. temp1_reset_history Write any value to reset history. - Temperature attributes are supported on ADM1278. + Temperature attributes are supported on ADM1272 and + ADM1278. diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 6e4298e99222..e71aec69e76e 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -31,8 +31,8 @@ config SENSORS_ADM1275 default n help If you say yes here you get hardware monitoring support for Analog - Devices ADM1075, ADM1275, ADM1276, ADM1278, ADM1293, and ADM1294 - Hot-Swap Controller and Digital Power Monitors. + Devices ADM1075, ADM1272, ADM1275, ADM1276, ADM1278, ADM1293, + and ADM1294 Hot-Swap Controller and Digital Power Monitors. This driver can also be built as a module. If so, the module will be called adm1275. diff --git a/drivers/hwmon/pmbus/adm1275.c b/drivers/hwmon/pmbus/adm1275.c index 8a44e94d5679..13600fa79e7f 100644 --- a/drivers/hwmon/pmbus/adm1275.c +++ b/drivers/hwmon/pmbus/adm1275.c @@ -3,6 +3,7 @@ * and Digital Power Monitor * * Copyright (c) 2011 Ericsson AB. + * Copyright (c) 2018 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 @@ -24,7 +25,7 @@ #include <linux/bitops.h> #include "pmbus.h" -enum chips { adm1075, adm1275, adm1276, adm1278, adm1293, adm1294 }; +enum chips { adm1075, adm1272, adm1275, adm1276, adm1278, adm1293, adm1294 }; #define ADM1275_MFR_STATUS_IOUT_WARN2 BIT(0) #define ADM1293_MFR_STATUS_VAUX_UV_WARN BIT(5) @@ -41,6 +42,8 @@ enum chips { adm1075, adm1275, adm1276, adm1278, adm1293, adm1294 }; #define ADM1075_IRANGE_25 BIT(3) #define ADM1075_IRANGE_MASK (BIT(3) | BIT(4)) +#define ADM1272_IRANGE BIT(0) + #define ADM1278_TEMP1_EN BIT(3) #define ADM1278_VIN_EN BIT(2) #define ADM1278_VOUT_EN BIT(1) @@ -105,6 +108,19 @@ static const struct coefficients adm1075_coefficients[] = { [4] = { 4279, 0, -1 }, /* power, irange50 */ }; +static const struct coefficients adm1272_coefficients[] = { + [0] = { 6770, 0, -2 }, /* voltage, vrange 60V */ + [1] = { 4062, 0, -2 }, /* voltage, vrange 100V */ + [2] = { 1326, 20480, -1 }, /* current, vsense range 15mV */ + [3] = { 663, 20480, -1 }, /* current, vsense range 30mV */ + [4] = { 3512, 0, -2 }, /* power, vrange 60V, irange 15mV */ + [5] = { 21071, 0, -3 }, /* power, vrange 100V, irange 15mV */ + [6] = { 17561, 0, -3 }, /* power, vrange 60V, irange 30mV */ + [7] = { 10535, 0, -3 }, /* power, vrange 100V, irange 30mV */ + [8] = { 42, 31871, -1 }, /* temperature */ + +}; + static const struct coefficients adm1275_coefficients[] = { [0] = { 19199, 0, -2 }, /* voltage, vrange set */ [1] = { 6720, 0, -1 }, /* voltage, vrange not set */ @@ -335,6 +351,7 @@ static int adm1275_read_byte_data(struct i2c_client *client, int page, int reg) static const struct i2c_device_id adm1275_id[] = { { "adm1075", adm1075 }, + { "adm1272", adm1272 }, { "adm1275", adm1275 }, { "adm1276", adm1276 }, { "adm1278", adm1278 }, @@ -451,6 +468,54 @@ static int adm1275_probe(struct i2c_client *client, info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; break; + case adm1272: + data->have_vout = true; + data->have_pin_max = true; + data->have_temp_max = true; + + coefficients = adm1272_coefficients; + vindex = (config & ADM1275_VRANGE) ? 1 : 0; + cindex = (config & ADM1272_IRANGE) ? 3 : 2; + /* pindex depends on the combination of the above */ + switch (config & (ADM1275_VRANGE | ADM1272_IRANGE)) { + case 0: + default: + pindex = 4; + break; + case ADM1275_VRANGE: + pindex = 5; + break; + case ADM1272_IRANGE: + pindex = 6; + break; + case ADM1275_VRANGE | ADM1272_IRANGE: + pindex = 7; + break; + } + tindex = 8; + + info->func[0] |= PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT | + PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; + + /* Enable VOUT if not enabled (it is disabled by default) */ + if (!(config & ADM1278_VOUT_EN)) { + config |= ADM1278_VOUT_EN; + ret = i2c_smbus_write_byte_data(client, + ADM1275_PMON_CONFIG, + config); + if (ret < 0) { + dev_err(&client->dev, + "Failed to enable VOUT monitoring\n"); + return -ENODEV; + } + } + + if (config & ADM1278_TEMP1_EN) + info->func[0] |= + PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + if (config & ADM1278_VIN_EN) + info->func[0] |= PMBUS_HAVE_VIN; + break; case adm1275: if (device_config & ADM1275_IOUT_WARN2_SELECT) data->have_oc_fault = true; |
