mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 18:30:54 +07:00
Notable hwmon updates for v4.5:
Add basic support for NCT6683 on Mitac boards Add support for AMD new 15h processors to fam15h_power driver Add pmbus client driver for LTC3815 Remove htu21 driver (now supported by iio subsystem) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJWkvlFAAoJEMsfJm/On5mBrpQP/3Q3hcyIJNgQS3oMosdBf4h2 PtHaC922PkwzMsJKO7OwhlMgD5eOGIqqkAjeFCkvj57CyXdfIY3dDRXrsjaL4Rh6 43r5NHOgeFm/i0NXCOPhNvm6EddhabH+rLi3hrEcAyCBApTvM0itnAWucvK1VgM+ ZSn/KnYciReZVVkHY2gWVo2YBybbulNNB5BxqGdx5nFDOrVOG1tOqyah4T43O7JY I5D4PqiSOG2kIJW9te0rPqoR/q3wOSurmhmMvIPF8G5Hlcf9ybPPpTyDK3MskqrL tOgF0XWL8DgaqtdeDgEnUSNzCz68HiITb2lb7pJ9eK8/VA07JUK3RnYIdxsybnH3 UuiLhwx4ktIeYczokXwhWrkZM1Az6jqR2f68qBiY3mi3s0qbaVNqUIposv+HZ21v WHa8vd/IepzRnaSkQ6hJy22HC980I7dNJ9fBPrgxtZ/ITpmyRL1baWHNJwf00XI+ UNnI0mqougvFusMuRMFKNO4nulPbJERTNi7XHA7O8XZLLDwR121t+xUazumadREo Qp2nqrbRwSIL2x4Uxsy4v3TJnQ+htIkV+HySPSfdJxHzCcMqtw3s/LRpKEGoJomR 88pQGO+dP9QKqyQjHnjPTqoMWDIlLt40WQ+JlA7/k7wGxTnAOsKKyGVq6c3SIbOb T4qna6dEUOjQQ42J3GdO =LTGB -----END PGP SIGNATURE----- Merge tag 'hwmon-for-linus-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull hwmon updates from Guenter Roeck: "Notable hwmon changes: - Add basic support for NCT6683 on Mitac boards - Add support for AMD new 15h processors to fam15h_power driver - Add pmbus client driver for LTC3815 - Remove htu21 driver (now supported by iio subsystem)" * tag 'hwmon-for-linus-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: hwmon: (nct6683) Add basic support for NCT6683 on Mitac boards hwmon: (ibmaem) constify aem_rw_sensor_template and aem_ro_sensor_template structures hwmon: (nct6683,nct6775) constify sensor_template_group structures MAINTAINERS: change the maintainer of fam15h_power driver hwmon: (fam15h_power) Add support for AMD new 15h processors hwmon: (pmbus) Add client driver for LTC3815 hwmon: (htu21) Remove driver
This commit is contained in:
Linus Torvalds
commit
2634bf2550
8
CREDITS
8
CREDITS
@ -1507,6 +1507,14 @@ S: 312/107 Canberra Avenue
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S: Griffith, ACT 2603
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S: Australia
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N: Andreas Herrmann
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E: herrmann.der.user@gmail.com
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E: herrmann.der.user@googlemail.com
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D: Key developer of x86/AMD64
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D: Author of AMD family 15h processor power monitoring driver
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D: Maintainer of AMD Athlon 64 and Opteron processor frequency driver
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S: Germany
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N: Sebastian Hetze
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E: she@lunetix.de
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D: German Linux Documentation,
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@ -1,46 +0,0 @@
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Kernel driver htu21
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===================
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Supported chips:
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* Measurement Specialties HTU21D
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Prefix: 'htu21'
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Addresses scanned: none
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Datasheet: Publicly available at the Measurement Specialties website
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http://www.meas-spec.com/downloads/HTU21D.pdf
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Author:
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William Markezana <william.markezana@meas-spec.com>
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Description
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-----------
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The HTU21D is a humidity and temperature sensor in a DFN package of
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only 3 x 3 mm footprint and 0.9 mm height.
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The devices communicate with the I2C protocol. All sensors are set to the
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same I2C address 0x40, so an entry with I2C_BOARD_INFO("htu21", 0x40) can
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be used in the board setup code.
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This driver does not auto-detect devices. You will have to instantiate the
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devices explicitly. Please see Documentation/i2c/instantiating-devices
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for details.
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sysfs-Interface
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---------------
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temp1_input - temperature input
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humidity1_input - humidity input
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Notes
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-----
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The driver uses the default resolution settings of 12 bit for humidity and 14
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bit for temperature, which results in typical measurement times of 11 ms for
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humidity and 44 ms for temperature. To keep self heating below 0.1 degree
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Celsius, the device should not be active for more than 10% of the time. For
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this reason, the driver performs no more than two measurements per second and
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reports cached information if polled more frequently.
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Different resolutions, the on-chip heater, using the CRC checksum and reading
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the serial number are not supported yet.
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61
Documentation/hwmon/ltc3815
Normal file
61
Documentation/hwmon/ltc3815
Normal file
@ -0,0 +1,61 @@
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Kernel driver ltc3815
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=====================
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Supported chips:
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* Linear Technology LTC3815
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Prefix: 'ltc3815'
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Addresses scanned: -
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Datasheet: http://www.linear.com/product/ltc3815
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Author: Guenter Roeck <linux@roeck-us.net>
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Description
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-----------
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LTC3815 is a Monolithic Synchronous DC/DC Step-Down Converter.
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Usage Notes
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-----------
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This driver does not probe for PMBus devices. You will have to instantiate
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devices explicitly.
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Example: the following commands will load the driver for an LTC3815
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at address 0x20 on I2C bus #1:
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# modprobe ltc3815
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# echo ltc3815 0x20 > /sys/bus/i2c/devices/i2c-1/new_device
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Sysfs attributes
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----------------
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in1_label "vin"
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in1_input Measured input voltage.
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in1_alarm Input voltage alarm.
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in1_highest Highest input voltage.
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in1_reset_history Reset input voltage history.
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in2_label "vout1".
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in2_input Measured output voltage.
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in2_alarm Output voltage alarm.
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in2_highest Highest output voltage.
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in2_reset_history Reset output voltage history.
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temp1_input Measured chip temperature.
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temp1_alarm Temperature alarm.
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temp1_highest Highest measured temperature.
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temp1_reset_history Reset temperature history.
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curr1_label "iin".
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curr1_input Measured input current.
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curr1_highest Highest input current.
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curr1_reset_history Reset input current history.
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curr2_label "iout1".
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curr2_input Measured output current.
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curr2_alarm Output current alarm.
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curr2_highest Highest output current.
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curr2_reset_history Reset output current history.
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@ -614,9 +614,9 @@ F: drivers/crypto/ccp/
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F: include/linux/ccp.h
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AMD FAM15H PROCESSOR POWER MONITORING DRIVER
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M: Andreas Herrmann <herrmann.der.user@googlemail.com>
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M: Huang Rui <ray.huang@amd.com>
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L: lm-sensors@lm-sensors.org
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S: Maintained
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S: Supported
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F: Documentation/hwmon/fam15h_power
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F: drivers/hwmon/fam15h_power.c
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@ -859,16 +859,6 @@ config SENSORS_MAX31790
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This driver can also be built as a module. If so, the module
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will be called max31790.
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config SENSORS_HTU21
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tristate "Measurement Specialties HTU21D humidity/temperature sensors"
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depends on I2C
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help
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If you say yes here you get support for the Measurement Specialties
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HTU21D humidity and temperature sensors.
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This driver can also be built as a module. If so, the module
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will be called htu21.
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config SENSORS_MCP3021
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tristate "Microchip MCP3021 and compatibles"
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depends on I2C
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@ -68,7 +68,6 @@ obj-$(CONFIG_SENSORS_GL518SM) += gl518sm.o
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obj-$(CONFIG_SENSORS_GL520SM) += gl520sm.o
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obj-$(CONFIG_SENSORS_GPIO_FAN) += gpio-fan.o
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obj-$(CONFIG_SENSORS_HIH6130) += hih6130.o
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obj-$(CONFIG_SENSORS_HTU21) += htu21.o
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obj-$(CONFIG_SENSORS_ULTRA45) += ultra45_env.o
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obj-$(CONFIG_SENSORS_I5500) += i5500_temp.o
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obj-$(CONFIG_SENSORS_I5K_AMB) += i5k_amb.o
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@ -47,6 +47,8 @@ MODULE_LICENSE("GPL");
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#define MSR_F15H_CU_MAX_PWR_ACCUMULATOR 0xc001007b
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#define PCI_DEVICE_ID_AMD_15H_M70H_NB_F4 0x15b4
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struct fam15h_power_data {
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struct pci_dev *pdev;
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unsigned int tdp_to_watts;
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@ -124,7 +126,7 @@ static int fam15h_power_init_attrs(struct pci_dev *pdev,
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if (c->x86 == 0x15 &&
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(c->x86_model <= 0xf ||
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||||
(c->x86_model >= 0x60 && c->x86_model <= 0x6f)))
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||||
(c->x86_model >= 0x60 && c->x86_model <= 0x7f)))
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n += 1;
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fam15h_power_attrs = devm_kcalloc(&pdev->dev, n,
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@ -138,7 +140,7 @@ static int fam15h_power_init_attrs(struct pci_dev *pdev,
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fam15h_power_attrs[n++] = &dev_attr_power1_crit.attr;
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||||
if (c->x86 == 0x15 &&
|
||||
(c->x86_model <= 0xf ||
|
||||
(c->x86_model >= 0x60 && c->x86_model <= 0x6f)))
|
||||
(c->x86_model >= 0x60 && c->x86_model <= 0x7f)))
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fam15h_power_attrs[n++] = &dev_attr_power1_input.attr;
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data->group.attrs = fam15h_power_attrs;
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@ -296,6 +298,7 @@ static const struct pci_device_id fam15h_power_id_table[] = {
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{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) },
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{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M30H_NB_F4) },
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{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M60H_NB_F4) },
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{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M70H_NB_F4) },
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{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_NB_F4) },
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{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F4) },
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{}
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@ -1,174 +0,0 @@
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/*
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* Measurement Specialties HTU21D humidity and temperature sensor driver
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*
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* Copyright (C) 2013 William Markezana <william.markezana@meas-spec.com>
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||||
*
|
||||
* 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
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
*/
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|
||||
#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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#include <linux/device.h>
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#include <linux/jiffies.h>
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|
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/* HTU21 Commands */
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#define HTU21_T_MEASUREMENT_HM 0xE3
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#define HTU21_RH_MEASUREMENT_HM 0xE5
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struct htu21 {
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struct i2c_client *client;
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struct mutex lock;
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bool valid;
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unsigned long last_update;
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int temperature;
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int humidity;
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};
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|
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static inline int htu21_temp_ticks_to_millicelsius(int ticks)
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{
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ticks &= ~0x0003; /* clear status bits */
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/*
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* Formula T = -46.85 + 175.72 * ST / 2^16 from datasheet p14,
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* optimized for integer fixed point (3 digits) arithmetic
|
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*/
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return ((21965 * ticks) >> 13) - 46850;
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}
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static inline int htu21_rh_ticks_to_per_cent_mille(int ticks)
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{
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ticks &= ~0x0003; /* clear status bits */
|
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/*
|
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* Formula RH = -6 + 125 * SRH / 2^16 from datasheet p14,
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* optimized for integer fixed point (3 digits) arithmetic
|
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*/
|
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return ((15625 * ticks) >> 13) - 6000;
|
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}
|
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|
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static int htu21_update_measurements(struct device *dev)
|
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{
|
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struct htu21 *htu21 = dev_get_drvdata(dev);
|
||||
struct i2c_client *client = htu21->client;
|
||||
int ret = 0;
|
||||
|
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mutex_lock(&htu21->lock);
|
||||
|
||||
if (time_after(jiffies, htu21->last_update + HZ / 2) ||
|
||||
!htu21->valid) {
|
||||
ret = i2c_smbus_read_word_swapped(client,
|
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HTU21_T_MEASUREMENT_HM);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
htu21->temperature = htu21_temp_ticks_to_millicelsius(ret);
|
||||
ret = i2c_smbus_read_word_swapped(client,
|
||||
HTU21_RH_MEASUREMENT_HM);
|
||||
if (ret < 0)
|
||||
goto out;
|
||||
htu21->humidity = htu21_rh_ticks_to_per_cent_mille(ret);
|
||||
htu21->last_update = jiffies;
|
||||
htu21->valid = true;
|
||||
}
|
||||
out:
|
||||
mutex_unlock(&htu21->lock);
|
||||
|
||||
return ret >= 0 ? 0 : ret;
|
||||
}
|
||||
|
||||
static ssize_t htu21_show_temperature(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct htu21 *htu21 = dev_get_drvdata(dev);
|
||||
int ret;
|
||||
|
||||
ret = htu21_update_measurements(dev);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
return sprintf(buf, "%d\n", htu21->temperature);
|
||||
}
|
||||
|
||||
static ssize_t htu21_show_humidity(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct htu21 *htu21 = dev_get_drvdata(dev);
|
||||
int ret;
|
||||
|
||||
ret = htu21_update_measurements(dev);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
return sprintf(buf, "%d\n", htu21->humidity);
|
||||
}
|
||||
|
||||
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
|
||||
htu21_show_temperature, NULL, 0);
|
||||
static SENSOR_DEVICE_ATTR(humidity1_input, S_IRUGO,
|
||||
htu21_show_humidity, NULL, 0);
|
||||
|
||||
static struct attribute *htu21_attrs[] = {
|
||||
&sensor_dev_attr_temp1_input.dev_attr.attr,
|
||||
&sensor_dev_attr_humidity1_input.dev_attr.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
ATTRIBUTE_GROUPS(htu21);
|
||||
|
||||
static int htu21_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct device *dev = &client->dev;
|
||||
struct htu21 *htu21;
|
||||
struct device *hwmon_dev;
|
||||
|
||||
if (!i2c_check_functionality(client->adapter,
|
||||
I2C_FUNC_SMBUS_READ_WORD_DATA)) {
|
||||
dev_err(&client->dev,
|
||||
"adapter does not support SMBus word transactions\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
htu21 = devm_kzalloc(dev, sizeof(*htu21), GFP_KERNEL);
|
||||
if (!htu21)
|
||||
return -ENOMEM;
|
||||
|
||||
htu21->client = client;
|
||||
mutex_init(&htu21->lock);
|
||||
|
||||
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
|
||||
htu21,
|
||||
htu21_groups);
|
||||
return PTR_ERR_OR_ZERO(hwmon_dev);
|
||||
}
|
||||
|
||||
static const struct i2c_device_id htu21_id[] = {
|
||||
{ "htu21", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, htu21_id);
|
||||
|
||||
static struct i2c_driver htu21_driver = {
|
||||
.class = I2C_CLASS_HWMON,
|
||||
.driver = {
|
||||
.name = "htu21",
|
||||
},
|
||||
.probe = htu21_probe,
|
||||
.id_table = htu21_id,
|
||||
};
|
||||
|
||||
module_i2c_driver(htu21_driver);
|
||||
|
||||
MODULE_AUTHOR("William Markezana <william.markezana@meas-spec.com>");
|
||||
MODULE_DESCRIPTION("MEAS HTU21D humidity and temperature sensor driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -920,8 +920,8 @@ static ssize_t aem_set_power_period(struct device *dev,
|
||||
|
||||
/* Discover sensors on an AEM device */
|
||||
static int aem_register_sensors(struct aem_data *data,
|
||||
struct aem_ro_sensor_template *ro,
|
||||
struct aem_rw_sensor_template *rw)
|
||||
const struct aem_ro_sensor_template *ro,
|
||||
const struct aem_rw_sensor_template *rw)
|
||||
{
|
||||
struct device *dev = &data->pdev->dev;
|
||||
struct sensor_device_attribute *sensors = data->sensors;
|
||||
@ -1020,19 +1020,19 @@ static void aem_remove_sensors(struct aem_data *data)
|
||||
/* Sensor probe functions */
|
||||
|
||||
/* Description of AEM1 sensors */
|
||||
static struct aem_ro_sensor_template aem1_ro_sensors[] = {
|
||||
static const struct aem_ro_sensor_template aem1_ro_sensors[] = {
|
||||
{"energy1_input", aem_show_energy, 0},
|
||||
{"power1_average", aem_show_power, 0},
|
||||
{NULL, NULL, 0},
|
||||
};
|
||||
|
||||
static struct aem_rw_sensor_template aem1_rw_sensors[] = {
|
||||
static const struct aem_rw_sensor_template aem1_rw_sensors[] = {
|
||||
{"power1_average_interval", aem_show_power_period, aem_set_power_period, 0},
|
||||
{NULL, NULL, NULL, 0},
|
||||
};
|
||||
|
||||
/* Description of AEM2 sensors */
|
||||
static struct aem_ro_sensor_template aem2_ro_sensors[] = {
|
||||
static const struct aem_ro_sensor_template aem2_ro_sensors[] = {
|
||||
{"energy1_input", aem_show_energy, 0},
|
||||
{"energy2_input", aem_show_energy, 1},
|
||||
{"power1_average", aem_show_power, 0},
|
||||
@ -1050,7 +1050,7 @@ static struct aem_ro_sensor_template aem2_ro_sensors[] = {
|
||||
{NULL, NULL, 0},
|
||||
};
|
||||
|
||||
static struct aem_rw_sensor_template aem2_rw_sensors[] = {
|
||||
static const struct aem_rw_sensor_template aem2_rw_sensors[] = {
|
||||
{"power1_average_interval", aem_show_power_period, aem_set_power_period, 0},
|
||||
{"power2_average_interval", aem_show_power_period, aem_set_power_period, 1},
|
||||
{NULL, NULL, NULL, 0},
|
||||
|
||||
@ -29,7 +29,7 @@
|
||||
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
||||
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/dmi.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/io.h>
|
||||
@ -45,7 +45,7 @@ enum kinds { nct6683 };
|
||||
|
||||
static bool force;
|
||||
module_param(force, bool, 0);
|
||||
MODULE_PARM_DESC(force, "Set to one to enable detection on non-Intel boards");
|
||||
MODULE_PARM_DESC(force, "Set to one to enable support for unknown vendors");
|
||||
|
||||
static const char * const nct6683_device_names[] = {
|
||||
"nct6683",
|
||||
@ -141,6 +141,7 @@ superio_exit(int ioreg)
|
||||
#define NCT6683_REG_MON(x) (0x100 + (x) * 2)
|
||||
#define NCT6683_REG_FAN_RPM(x) (0x140 + (x) * 2)
|
||||
#define NCT6683_REG_PWM(x) (0x160 + (x))
|
||||
#define NCT6683_REG_PWM_WRITE(x) (0xa28 + (x))
|
||||
|
||||
#define NCT6683_REG_MON_STS(x) (0x174 + (x))
|
||||
#define NCT6683_REG_IDLE(x) (0x178 + (x))
|
||||
@ -165,8 +166,13 @@ superio_exit(int ioreg)
|
||||
|
||||
#define NCT6683_REG_FAN_MIN(x) (0x3b8 + (x) * 2) /* 16 bit */
|
||||
|
||||
#define NCT6683_REG_FAN_CFG_CTRL 0xa01
|
||||
#define NCT6683_FAN_CFG_REQ 0x80
|
||||
#define NCT6683_FAN_CFG_DONE 0x40
|
||||
|
||||
#define NCT6683_REG_CUSTOMER_ID 0x602
|
||||
#define NCT6683_CUSTOMER_ID_INTEL 0x805
|
||||
#define NCT6683_CUSTOMER_ID_MITAC 0xa0e
|
||||
|
||||
#define NCT6683_REG_BUILD_YEAR 0x604
|
||||
#define NCT6683_REG_BUILD_MONTH 0x605
|
||||
@ -394,7 +400,8 @@ struct sensor_template_group {
|
||||
};
|
||||
|
||||
static struct attribute_group *
|
||||
nct6683_create_attr_group(struct device *dev, struct sensor_template_group *tg,
|
||||
nct6683_create_attr_group(struct device *dev,
|
||||
const struct sensor_template_group *tg,
|
||||
int repeat)
|
||||
{
|
||||
struct sensor_device_attribute_2 *a2;
|
||||
@ -559,6 +566,7 @@ static int get_temp_reg(struct nct6683_data *data, int nr, int index)
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case NCT6683_CUSTOMER_ID_MITAC:
|
||||
default:
|
||||
switch (nr) {
|
||||
default:
|
||||
@ -703,7 +711,7 @@ static struct sensor_device_template *nct6683_attributes_in_template[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct sensor_template_group nct6683_in_template_group = {
|
||||
static const struct sensor_template_group nct6683_in_template_group = {
|
||||
.templates = nct6683_attributes_in_template,
|
||||
.is_visible = nct6683_in_is_visible,
|
||||
};
|
||||
@ -774,7 +782,7 @@ static struct sensor_device_template *nct6683_attributes_fan_template[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct sensor_template_group nct6683_fan_template_group = {
|
||||
static const struct sensor_template_group nct6683_fan_template_group = {
|
||||
.templates = nct6683_attributes_fan_template,
|
||||
.is_visible = nct6683_fan_is_visible,
|
||||
.base = 1,
|
||||
@ -902,7 +910,7 @@ static struct sensor_device_template *nct6683_attributes_temp_template[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct sensor_template_group nct6683_temp_template_group = {
|
||||
static const struct sensor_template_group nct6683_temp_template_group = {
|
||||
.templates = nct6683_attributes_temp_template,
|
||||
.is_visible = nct6683_temp_is_visible,
|
||||
.base = 1,
|
||||
@ -918,7 +926,29 @@ show_pwm(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
return sprintf(buf, "%d\n", data->pwm[index]);
|
||||
}
|
||||
|
||||
SENSOR_TEMPLATE(pwm, "pwm%d", S_IRUGO, show_pwm, NULL, 0);
|
||||
static ssize_t
|
||||
store_pwm(struct device *dev, struct device_attribute *attr, const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
|
||||
struct nct6683_data *data = dev_get_drvdata(dev);
|
||||
int index = sattr->index;
|
||||
unsigned long val;
|
||||
|
||||
if (kstrtoul(buf, 10, &val) || val > 255)
|
||||
return -EINVAL;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
nct6683_write(data, NCT6683_REG_FAN_CFG_CTRL, NCT6683_FAN_CFG_REQ);
|
||||
usleep_range(1000, 2000);
|
||||
nct6683_write(data, NCT6683_REG_PWM_WRITE(index), val);
|
||||
nct6683_write(data, NCT6683_REG_FAN_CFG_CTRL, NCT6683_FAN_CFG_DONE);
|
||||
mutex_unlock(&data->update_lock);
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
SENSOR_TEMPLATE(pwm, "pwm%d", S_IRUGO, show_pwm, store_pwm, 0);
|
||||
|
||||
static umode_t nct6683_pwm_is_visible(struct kobject *kobj,
|
||||
struct attribute *attr, int index)
|
||||
@ -930,6 +960,10 @@ static umode_t nct6683_pwm_is_visible(struct kobject *kobj,
|
||||
if (!(data->have_pwm & (1 << pwm)))
|
||||
return 0;
|
||||
|
||||
/* Only update pwm values for Mitac boards */
|
||||
if (data->customer_id == NCT6683_CUSTOMER_ID_MITAC)
|
||||
return attr->mode | S_IWUSR;
|
||||
|
||||
return attr->mode;
|
||||
}
|
||||
|
||||
@ -938,7 +972,7 @@ static struct sensor_device_template *nct6683_attributes_pwm_template[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct sensor_template_group nct6683_pwm_template_group = {
|
||||
static const struct sensor_template_group nct6683_pwm_template_group = {
|
||||
.templates = nct6683_attributes_pwm_template,
|
||||
.is_visible = nct6683_pwm_is_visible,
|
||||
.base = 1,
|
||||
@ -1170,6 +1204,7 @@ static int nct6683_probe(struct platform_device *pdev)
|
||||
struct device *hwmon_dev;
|
||||
struct resource *res;
|
||||
int groups = 0;
|
||||
char build[16];
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
|
||||
if (!devm_request_region(dev, res->start, IOREGION_LENGTH, DRVNAME))
|
||||
@ -1187,6 +1222,17 @@ static int nct6683_probe(struct platform_device *pdev)
|
||||
|
||||
data->customer_id = nct6683_read16(data, NCT6683_REG_CUSTOMER_ID);
|
||||
|
||||
/* By default only instantiate driver if the customer ID is known */
|
||||
switch (data->customer_id) {
|
||||
case NCT6683_CUSTOMER_ID_INTEL:
|
||||
break;
|
||||
case NCT6683_CUSTOMER_ID_MITAC:
|
||||
break;
|
||||
default:
|
||||
if (!force)
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
nct6683_init_device(data);
|
||||
nct6683_setup_fans(data);
|
||||
nct6683_setup_sensors(data);
|
||||
@ -1230,13 +1276,22 @@ static int nct6683_probe(struct platform_device *pdev)
|
||||
}
|
||||
data->groups[groups++] = &nct6683_group_other;
|
||||
|
||||
dev_info(dev, "%s EC firmware version %d.%d build %02x/%02x/%02x\n",
|
||||
if (data->customer_id == NCT6683_CUSTOMER_ID_INTEL)
|
||||
scnprintf(build, sizeof(build), "%02x/%02x/%02x",
|
||||
nct6683_read(data, NCT6683_REG_BUILD_MONTH),
|
||||
nct6683_read(data, NCT6683_REG_BUILD_DAY),
|
||||
nct6683_read(data, NCT6683_REG_BUILD_YEAR));
|
||||
else
|
||||
scnprintf(build, sizeof(build), "%02d/%02d/%02d",
|
||||
nct6683_read(data, NCT6683_REG_BUILD_MONTH),
|
||||
nct6683_read(data, NCT6683_REG_BUILD_DAY),
|
||||
nct6683_read(data, NCT6683_REG_BUILD_YEAR));
|
||||
|
||||
dev_info(dev, "%s EC firmware version %d.%d build %s\n",
|
||||
nct6683_chip_names[data->kind],
|
||||
nct6683_read(data, NCT6683_REG_VERSION_HI),
|
||||
nct6683_read(data, NCT6683_REG_VERSION_LO),
|
||||
nct6683_read(data, NCT6683_REG_BUILD_MONTH),
|
||||
nct6683_read(data, NCT6683_REG_BUILD_DAY),
|
||||
nct6683_read(data, NCT6683_REG_BUILD_YEAR));
|
||||
build);
|
||||
|
||||
hwmon_dev = devm_hwmon_device_register_with_groups(dev,
|
||||
nct6683_device_names[data->kind], data, data->groups);
|
||||
@ -1292,20 +1347,10 @@ static struct platform_driver nct6683_driver = {
|
||||
|
||||
static int __init nct6683_find(int sioaddr, struct nct6683_sio_data *sio_data)
|
||||
{
|
||||
const char *board_vendor;
|
||||
int addr;
|
||||
u16 val;
|
||||
int err;
|
||||
|
||||
/*
|
||||
* Only run on Intel boards unless the 'force' module parameter is set
|
||||
*/
|
||||
if (!force) {
|
||||
board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
|
||||
if (!board_vendor || strcmp(board_vendor, "Intel Corporation"))
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
err = superio_enter(sioaddr);
|
||||
if (err)
|
||||
return err;
|
||||
|
||||
@ -1045,7 +1045,8 @@ struct sensor_template_group {
|
||||
};
|
||||
|
||||
static struct attribute_group *
|
||||
nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
|
||||
nct6775_create_attr_group(struct device *dev,
|
||||
const struct sensor_template_group *tg,
|
||||
int repeat)
|
||||
{
|
||||
struct attribute_group *group;
|
||||
@ -1827,7 +1828,7 @@ static struct sensor_device_template *nct6775_attributes_in_template[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct sensor_template_group nct6775_in_template_group = {
|
||||
static const struct sensor_template_group nct6775_in_template_group = {
|
||||
.templates = nct6775_attributes_in_template,
|
||||
.is_visible = nct6775_in_is_visible,
|
||||
};
|
||||
@ -2046,7 +2047,7 @@ static struct sensor_device_template *nct6775_attributes_fan_template[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct sensor_template_group nct6775_fan_template_group = {
|
||||
static const struct sensor_template_group nct6775_fan_template_group = {
|
||||
.templates = nct6775_attributes_fan_template,
|
||||
.is_visible = nct6775_fan_is_visible,
|
||||
.base = 1,
|
||||
@ -2255,7 +2256,7 @@ static struct sensor_device_template *nct6775_attributes_temp_template[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct sensor_template_group nct6775_temp_template_group = {
|
||||
static const struct sensor_template_group nct6775_temp_template_group = {
|
||||
.templates = nct6775_attributes_temp_template,
|
||||
.is_visible = nct6775_temp_is_visible,
|
||||
.base = 1,
|
||||
@ -3117,7 +3118,7 @@ static struct sensor_device_template *nct6775_attributes_pwm_template[] = {
|
||||
NULL
|
||||
};
|
||||
|
||||
static struct sensor_template_group nct6775_pwm_template_group = {
|
||||
static const struct sensor_template_group nct6775_pwm_template_group = {
|
||||
.templates = nct6775_attributes_pwm_template,
|
||||
.is_visible = nct6775_pwm_is_visible,
|
||||
.base = 1,
|
||||
|
||||
@ -65,6 +65,16 @@ config SENSORS_LTC2978_REGULATOR
|
||||
If you say yes here you get regulator support for Linear
|
||||
Technology LTC2974, LTC2977, LTC2978, LTC3880, LTC3883, and LTM4676.
|
||||
|
||||
config SENSORS_LTC3815
|
||||
tristate "Linear Technologies LTC3815"
|
||||
default n
|
||||
help
|
||||
If you say yes here you get hardware monitoring support for Linear
|
||||
Technology LTC3815.
|
||||
|
||||
This driver can also be built as a module. If so, the module will
|
||||
be called ltc3815.
|
||||
|
||||
config SENSORS_MAX16064
|
||||
tristate "Maxim MAX16064"
|
||||
default n
|
||||
|
||||
@ -7,6 +7,7 @@ obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o
|
||||
obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o
|
||||
obj-$(CONFIG_SENSORS_LM25066) += lm25066.o
|
||||
obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o
|
||||
obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o
|
||||
obj-$(CONFIG_SENSORS_MAX16064) += max16064.o
|
||||
obj-$(CONFIG_SENSORS_MAX20751) += max20751.o
|
||||
obj-$(CONFIG_SENSORS_MAX34440) += max34440.o
|
||||
|
||||
215
drivers/hwmon/pmbus/ltc3815.c
Normal file
215
drivers/hwmon/pmbus/ltc3815.c
Normal file
@ -0,0 +1,215 @@
|
||||
/*
|
||||
* Hardware monitoring driver for LTC3815
|
||||
*
|
||||
* Copyright (c) 2015 Linear Technology
|
||||
* Copyright (c) 2015 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
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*/
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include "pmbus.h"
|
||||
|
||||
#define LTC3815_MFR_IOUT_PEAK 0xd7
|
||||
#define LTC3815_MFR_VOUT_PEAK 0xdd
|
||||
#define LTC3815_MFR_VIN_PEAK 0xde
|
||||
#define LTC3815_MFR_TEMP_PEAK 0xdf
|
||||
#define LTC3815_MFR_IIN_PEAK 0xe1
|
||||
#define LTC3815_MFR_SPECIAL_ID 0xe7
|
||||
|
||||
#define LTC3815_ID 0x8000
|
||||
#define LTC3815_ID_MASK 0xff00
|
||||
|
||||
static int ltc3815_read_byte_data(struct i2c_client *client, int page, int reg)
|
||||
{
|
||||
int ret;
|
||||
|
||||
switch (reg) {
|
||||
case PMBUS_VOUT_MODE:
|
||||
/*
|
||||
* The chip returns 0x3e, suggesting VID mode with manufacturer
|
||||
* specific VID codes. Since the output voltage is reported
|
||||
* with a LSB of 0.5mV, override and report direct mode with
|
||||
* appropriate coefficients.
|
||||
*/
|
||||
ret = 0x40;
|
||||
break;
|
||||
default:
|
||||
ret = -ENODATA;
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ltc3815_write_byte(struct i2c_client *client, int page, u8 reg)
|
||||
{
|
||||
int ret;
|
||||
|
||||
switch (reg) {
|
||||
case PMBUS_CLEAR_FAULTS:
|
||||
/*
|
||||
* LTC3815 does not support the CLEAR_FAULTS command.
|
||||
* Emulate it by clearing the status register.
|
||||
*/
|
||||
ret = pmbus_read_word_data(client, 0, PMBUS_STATUS_WORD);
|
||||
if (ret > 0) {
|
||||
pmbus_write_word_data(client, 0, PMBUS_STATUS_WORD,
|
||||
ret);
|
||||
ret = 0;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
ret = -ENODATA;
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ltc3815_read_word_data(struct i2c_client *client, int page, int reg)
|
||||
{
|
||||
int ret;
|
||||
|
||||
switch (reg) {
|
||||
case PMBUS_VIRT_READ_VIN_MAX:
|
||||
ret = pmbus_read_word_data(client, page, LTC3815_MFR_VIN_PEAK);
|
||||
break;
|
||||
case PMBUS_VIRT_READ_VOUT_MAX:
|
||||
ret = pmbus_read_word_data(client, page, LTC3815_MFR_VOUT_PEAK);
|
||||
break;
|
||||
case PMBUS_VIRT_READ_TEMP_MAX:
|
||||
ret = pmbus_read_word_data(client, page, LTC3815_MFR_TEMP_PEAK);
|
||||
break;
|
||||
case PMBUS_VIRT_READ_IOUT_MAX:
|
||||
ret = pmbus_read_word_data(client, page, LTC3815_MFR_IOUT_PEAK);
|
||||
break;
|
||||
case PMBUS_VIRT_READ_IIN_MAX:
|
||||
ret = pmbus_read_word_data(client, page, LTC3815_MFR_IIN_PEAK);
|
||||
break;
|
||||
case PMBUS_VIRT_RESET_VOUT_HISTORY:
|
||||
case PMBUS_VIRT_RESET_VIN_HISTORY:
|
||||
case PMBUS_VIRT_RESET_TEMP_HISTORY:
|
||||
case PMBUS_VIRT_RESET_IOUT_HISTORY:
|
||||
case PMBUS_VIRT_RESET_IIN_HISTORY:
|
||||
ret = 0;
|
||||
break;
|
||||
default:
|
||||
ret = -ENODATA;
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int ltc3815_write_word_data(struct i2c_client *client, int page,
|
||||
int reg, u16 word)
|
||||
{
|
||||
int ret;
|
||||
|
||||
switch (reg) {
|
||||
case PMBUS_VIRT_RESET_IIN_HISTORY:
|
||||
ret = pmbus_write_word_data(client, page,
|
||||
LTC3815_MFR_IIN_PEAK, 0);
|
||||
break;
|
||||
case PMBUS_VIRT_RESET_IOUT_HISTORY:
|
||||
ret = pmbus_write_word_data(client, page,
|
||||
LTC3815_MFR_IOUT_PEAK, 0);
|
||||
break;
|
||||
case PMBUS_VIRT_RESET_VOUT_HISTORY:
|
||||
ret = pmbus_write_word_data(client, page,
|
||||
LTC3815_MFR_VOUT_PEAK, 0);
|
||||
break;
|
||||
case PMBUS_VIRT_RESET_VIN_HISTORY:
|
||||
ret = pmbus_write_word_data(client, page,
|
||||
LTC3815_MFR_VIN_PEAK, 0);
|
||||
break;
|
||||
case PMBUS_VIRT_RESET_TEMP_HISTORY:
|
||||
ret = pmbus_write_word_data(client, page,
|
||||
LTC3815_MFR_TEMP_PEAK, 0);
|
||||
break;
|
||||
default:
|
||||
ret = -ENODATA;
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct i2c_device_id ltc3815_id[] = {
|
||||
{"ltc3815", 0},
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, ltc3815_id);
|
||||
|
||||
static struct pmbus_driver_info ltc3815_info = {
|
||||
.pages = 1,
|
||||
.format[PSC_VOLTAGE_IN] = direct,
|
||||
.format[PSC_VOLTAGE_OUT] = direct,
|
||||
.format[PSC_CURRENT_IN] = direct,
|
||||
.format[PSC_CURRENT_OUT] = direct,
|
||||
.format[PSC_TEMPERATURE] = direct,
|
||||
.m[PSC_VOLTAGE_IN] = 250,
|
||||
.b[PSC_VOLTAGE_IN] = 0,
|
||||
.R[PSC_VOLTAGE_IN] = 0,
|
||||
.m[PSC_VOLTAGE_OUT] = 2,
|
||||
.b[PSC_VOLTAGE_OUT] = 0,
|
||||
.R[PSC_VOLTAGE_OUT] = 3,
|
||||
.m[PSC_CURRENT_IN] = 1,
|
||||
.b[PSC_CURRENT_IN] = 0,
|
||||
.R[PSC_CURRENT_IN] = 2,
|
||||
.m[PSC_CURRENT_OUT] = 1,
|
||||
.b[PSC_CURRENT_OUT] = 0,
|
||||
.R[PSC_CURRENT_OUT] = 2,
|
||||
.m[PSC_TEMPERATURE] = 1,
|
||||
.b[PSC_TEMPERATURE] = 0,
|
||||
.R[PSC_TEMPERATURE] = 0,
|
||||
.func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | PMBUS_HAVE_VOUT |
|
||||
PMBUS_HAVE_IOUT | PMBUS_HAVE_TEMP,
|
||||
.read_byte_data = ltc3815_read_byte_data,
|
||||
.read_word_data = ltc3815_read_word_data,
|
||||
.write_byte = ltc3815_write_byte,
|
||||
.write_word_data = ltc3815_write_word_data,
|
||||
};
|
||||
|
||||
static int ltc3815_probe(struct i2c_client *client,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
int chip_id;
|
||||
|
||||
if (!i2c_check_functionality(client->adapter,
|
||||
I2C_FUNC_SMBUS_READ_WORD_DATA))
|
||||
return -ENODEV;
|
||||
|
||||
chip_id = i2c_smbus_read_word_data(client, LTC3815_MFR_SPECIAL_ID);
|
||||
if (chip_id < 0)
|
||||
return chip_id;
|
||||
if ((chip_id & LTC3815_ID_MASK) != LTC3815_ID)
|
||||
return -ENODEV;
|
||||
|
||||
return pmbus_do_probe(client, id, <c3815_info);
|
||||
}
|
||||
|
||||
static struct i2c_driver ltc3815_driver = {
|
||||
.driver = {
|
||||
.name = "ltc3815",
|
||||
},
|
||||
.probe = ltc3815_probe,
|
||||
.remove = pmbus_do_remove,
|
||||
.id_table = ltc3815_id,
|
||||
};
|
||||
|
||||
module_i2c_driver(ltc3815_driver);
|
||||
|
||||
MODULE_AUTHOR("Guenter Roeck");
|
||||
MODULE_DESCRIPTION("PMBus driver for LTC3815");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in New Issue
Block a user