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hwmon: (pmbus/max34440) Add support for MAX34460 and MAX34461
MAX34460 is a PMBus 12-Channel Voltage Monitor & Sequencer. MAX34461 is a PMBus 16-Channel Voltage Monitor & Sequencer. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Guenter Roeck
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16c6d01f3b
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50115ac9b6
@ -16,6 +16,16 @@ Supported chips:
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Prefixes: 'max34446'
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Addresses scanned: -
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Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX34446.pdf
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* Maxim MAX34460
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PMBus 12-Channel Voltage Monitor & Sequencer
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Prefix: 'max34460'
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Addresses scanned: -
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Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34460.pdf
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* Maxim MAX34461
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PMBus 16-Channel Voltage Monitor & Sequencer
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Prefix: 'max34461'
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Addresses scanned: -
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Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX34461.pdf
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Author: Guenter Roeck <guenter.roeck@ericsson.com>
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@ -26,6 +36,9 @@ Description
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This driver supports hardware montoring for Maxim MAX34440 PMBus 6-Channel
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Power-Supply Manager, MAX34441 PMBus 5-Channel Power-Supply Manager
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and Intelligent Fan Controller, and MAX34446 PMBus Power-Supply Data Logger.
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It also supports the MAX34460 and MAX34461 PMBus Voltage Monitor & Sequencers.
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The MAX34460 supports 12 voltage channels, and the MAX34461 supports 16 voltage
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channels.
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The driver is a client driver to the core PMBus driver. Please see
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Documentation/hwmon/pmbus for details on PMBus client drivers.
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@ -109,3 +122,6 @@ temp[1-8]_reset_history Write any value to reset history.
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temp7 and temp8 attributes only exist for MAX34440.
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MAX34446 only supports temp[1-3].
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MAX34460 supports attribute groups in[1-12] and temp[1-5].
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MAX34461 supports attribute groups in[1-16] and temp[1-5].
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@ -72,7 +72,7 @@ config SENSORS_MAX34440
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default n
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help
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If you say yes here you get hardware monitoring support for Maxim
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MAX34440, MAX34441, and MAX34446.
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MAX34440, MAX34441, MAX34446, MAX34460, and MAX34461.
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This driver can also be built as a module. If so, the module will
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be called max34440.
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@ -2,6 +2,7 @@
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* Hardware monitoring driver for Maxim MAX34440/MAX34441
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*
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* Copyright (c) 2011 Ericsson AB.
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* Copyright (c) 2012 Guenter Roeck
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -25,7 +26,7 @@
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#include <linux/i2c.h>
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#include "pmbus.h"
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enum chips { max34440, max34441, max34446 };
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enum chips { max34440, max34441, max34446, max34460, max34461 };
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#define MAX34440_MFR_VOUT_PEAK 0xd4
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#define MAX34440_MFR_IOUT_PEAK 0xd5
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@ -87,7 +88,8 @@ static int max34440_read_word_data(struct i2c_client *client, int page, int reg)
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MAX34446_MFR_POUT_PEAK);
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break;
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case PMBUS_VIRT_READ_TEMP_AVG:
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if (data->id != max34446)
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if (data->id != max34446 && data->id != max34460 &&
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data->id != max34461)
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return -ENXIO;
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ret = pmbus_read_word_data(client, page,
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MAX34446_MFR_TEMPERATURE_AVG);
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@ -322,6 +324,73 @@ static struct pmbus_driver_info max34440_info[] = {
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.read_word_data = max34440_read_word_data,
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.write_word_data = max34440_write_word_data,
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},
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[max34460] = {
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.pages = 18,
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.format[PSC_VOLTAGE_OUT] = direct,
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.format[PSC_TEMPERATURE] = direct,
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.m[PSC_VOLTAGE_OUT] = 1,
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.b[PSC_VOLTAGE_OUT] = 0,
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.R[PSC_VOLTAGE_OUT] = 3,
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.m[PSC_TEMPERATURE] = 1,
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.b[PSC_TEMPERATURE] = 0,
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.R[PSC_TEMPERATURE] = 2,
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.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[13] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.func[14] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.func[15] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.func[16] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.read_byte_data = max34440_read_byte_data,
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.read_word_data = max34440_read_word_data,
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.write_word_data = max34440_write_word_data,
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},
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[max34461] = {
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.pages = 23,
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.format[PSC_VOLTAGE_OUT] = direct,
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.format[PSC_TEMPERATURE] = direct,
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.m[PSC_VOLTAGE_OUT] = 1,
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.b[PSC_VOLTAGE_OUT] = 0,
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.R[PSC_VOLTAGE_OUT] = 3,
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.m[PSC_TEMPERATURE] = 1,
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.b[PSC_TEMPERATURE] = 0,
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.R[PSC_TEMPERATURE] = 2,
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.func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[1] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[2] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[3] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[4] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[5] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[6] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[7] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[8] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[9] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[10] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[11] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[12] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[13] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[14] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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.func[15] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT,
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/* page 16 is reserved */
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.func[17] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.func[18] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.func[19] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.func[20] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.func[21] = PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
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.read_byte_data = max34440_read_byte_data,
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.read_word_data = max34440_read_word_data,
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.write_word_data = max34440_write_word_data,
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},
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};
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static int max34440_probe(struct i2c_client *client,
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@ -343,6 +412,8 @@ static const struct i2c_device_id max34440_id[] = {
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{"max34440", max34440},
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{"max34441", max34441},
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{"max34446", max34446},
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{"max34460", max34460},
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{"max34461", max34461},
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{}
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};
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MODULE_DEVICE_TABLE(i2c, max34440_id);
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