02 Apr, 2017
2 commits
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The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:.But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.Signed-off-by: Javier Martinez Canillas
Signed-off-by: Guenter Roeck -
The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:.But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.Signed-off-by: Javier Martinez Canillas
Signed-off-by: Guenter Roeck
28 Mar, 2017
1 commit
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Seems like coefficient values for m, b and R under power have been
put in the wrong order. Rearranging them properly to get correct
values of coefficients for power.For specs, please refer to table 7 (page 35) on
http://www.analog.com/media/en/technical-documentation/data-sheets/ADM1075.pdfFixes: 904b296f308d ("hwmon: (adm1275) Introduce configuration data structure for coeffcients")
Signed-off-by: Shikhar Dogra
Signed-off-by: Guenter Roeck
03 Dec, 2016
1 commit
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The adm1278 can optionally monitor the VOUT pin. This functionality is
not enabled at reset, so PMON_CONFIG needs to be modified in order to
enable it.Signed-off-by: Yi Li
Signed-off-by: Joel Stanley
Signed-off-by: Guenter Roeck
09 Sep, 2016
2 commits
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The UCD90160 Power Supply Sequencer reuses the existing register layout,
so just an id addition was required.Signed-off-by: Matthew Weber
Signed-off-by: Ronak Desai
[groeck: Updated description, ordered alphabetically, added documentation]
Signed-off-by: Guenter Roeck -
Provide support for PSU DPS-460, DPS-800 from Delta Electronics, INC
and for SGD009 from Acbel Polytech, INC.These devices do not support the STATUS_CML register, and reports a
communication error in response to this command. For this reason,
the status register check is disabled for these controllers.Signed-off-by: Vadim Pasternak
Reviewed-by: Jiri Pirko
Reviewed-by: Jean Delvare
Signed-off-by: Guenter Roeck
05 Mar, 2016
1 commit
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ADM1278 is mostly compatible to other chips of the same series.
Besides the usual difference in coefficients, it supports
a temperature sensor, and it can measure both input and output
voltage at the same time.Signed-off-by: Guenter Roeck
19 Dec, 2015
1 commit
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LTC3815 is a Monolithic Synchronous DC/DC Step-Down Converter.
Cc: Michael Jones
Signed-off-by: Guenter Roeck
20 Aug, 2015
4 commits
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LTM2975 is a dual 9A or single 18A μModule regulator.
It is register compatible with LTM4676.Signed-off-by: Guenter Roeck
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Some of the LTC chips supported by this driver have to be polled
to ensure that they are ready to accept commands.Signed-off-by: Michael Jones
[Guenter Roeck: simplifications and formatting changes]
Signed-off-by: Guenter Roeck -
PMBus controllers optionally support PEC. Configure the driver
to use it if available to improve operational security.Suggested-by: Michael Jones
Signed-off-by: Guenter Roeck -
Using the BIT macro makes the code a little easier to read.
Signed-off-by: Guenter Roeck
18 Aug, 2015
8 commits
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LTC3886 is a is a dual PolyPhase DC/DC synchronous step-down switching
regulator controller. It is mostly command compatible to LTC3883,
but supports two phases instead of one.Suggested-by: Michael Jones
Tested-by: Michael Jones
Signed-off-by: Guenter Roeck -
LTC2980 and LTM2987 are command compatible to LTC2977. They consist of
two LTC2977 on a single die, and are instantiated as two separate chips,
each supporting eight channels.Suggested-by: Michael Jones
Tested-by: Michael Jones
Signed-off-by: Guenter Roeck -
Add additional chip ID for an older revision of LTC2978, as well
as two chip IDs for LTC3882. Turns out the LTC3882 does support the
LTC2978_MFR_SPECIAL_ID register, and reading it returns its chip ID,
but the register is undocumented.Suggested-by: Michael Jones
Tested-by: Michael Jones
Signed-off-by: Guenter Roeck -
Per information from Linear Technologies, the ID mask is 12 bit
for all chips of this series. Use this mask to detect chips to ensure
that all chip revisions are detected.Suggested-by: Michael Jones
Tested-by: Michael Jones
Signed-off-by: Guenter Roeck -
The code used to determine historic low and high peaks is repeated
several times. Introduce helper functions to simplify it.Tested-by: Michael Jones
Signed-off-by: Guenter Roeck -
It is becoming cumbersom to track per-chip feature support.
Introduce feature flag to simplify the code.Tested-by: Michael Jones
Signed-off-by: Guenter Roeck -
This will simplify adding new virtual commands.
Tested-by: Michael Jones
Signed-off-by: Guenter Roeck -
LTC2975 is mostly compatible to LTC2974, but supports input current
and power measurement.Tested-by: Michael Jones
Signed-off-by: Guenter Roeck
13 Aug, 2015
4 commits
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LTC3887 is an enhanced version of LTC3880 and supports the same commands.
Signed-off-by: Guenter Roeck
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Per datasheet, the chip ID for LTM4676 is 0x448x. This was observed
in real systems. In addition to that, chip ID 0x4401 was observed
as well. Research shows that the chip ID has been changed from 0x440x
to 0x448x in datasheet revision C. Add support for the additional chip ID.Also add the chip ID for LTM4676A, which is functionally identical
to LTM4676.Reported-by: Ananda Babu Nettam
Cc: Ananda Babu Nettam
Cc: Amit U Jain
Signed-off-by: Guenter Roeck -
LTC3882 is mostly compatible with LTC3880. Major differences are that it
does not measure the input current, and it no longer supports LTC's legacy
mechanism to identify the chip.Signed-off-by: Guenter Roeck
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Verifying the chip type is getting more complicated with new chips,
since not all chips support the same mechanism to read the chip type.
Move the code into a separate function to simplify adding support for
those chips.Signed-off-by: Guenter Roeck
11 Aug, 2015
1 commit
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Add device IDs and references for Texas Instruments TPS544B20, TPS544B25,
TPS544C20, and TPS544C25 to the generic PMBus driver.Reviewed-by: Jean Delvare
Signed-off-by: Guenter Roeck
10 Aug, 2015
10 commits
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MAX20751 is a multiphase power controller with internal buck converter.
It uses VR12.0 to report the output voltage. This requires an explicit
driver, since the VR version can not be auto-detected.The chip supports a manufacturer specific command to fine-tune the output
voltage. This command is not currently supported.Signed-off-by: Guenter Roeck
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Newer chips such as MAX20751 support VR12. Add support for it.
Signed-off-by: Guenter Roeck
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Use the CLEAR_PEAKS command on LTM4676.
Reviewed-by: Jean Delvare
Signed-off-by: Guenter Roeck -
ADM1293 and ADM1294 are mostly compatible with other chips of the same
series, but have more configuration options. There are also some
differences in register details.Signed-off-by: Guenter Roeck
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Add support for powerX_input_lowest for both input and output power.
Signed-off-by: Guenter Roeck
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Introduce have_vout, have_vaux_status, have_pin_max, and have_uc_fault
to simplify adding support for new chips.Also simplify error returns where appropriate to return immediately
on error.Signed-off-by: Guenter Roeck
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Each new chip supported by the driver has a new set of coefficients,
making hard-coding coefficients more and more cumbersome. Introduce
a datastructure and table to simplify configuration.Signed-off-by: Guenter Roeck
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Use BIT macro to simplify adding new bit masks.
Signed-off-by: Guenter Roeck
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pmbus_regulator_ops is not modified after initialized, so make it const.
Signed-off-by: Axel Lin
Signed-off-by: Guenter Roeck -
The pmbus_regulator_ops is for voltage regulators, so explicitly set
regulator type for better readability.Signed-off-by: Axel Lin
Signed-off-by: Guenter Roeck
07 Jan, 2015
1 commit
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Support for keyword 'boolean' will be dropped later on.
No functional change.
Reference: http://lkml.kernel.org/r/cover.1418003065.git.cj@linux.com
Signed-off-by: Christoph Jaeger
Signed-off-by: Michal Marek
01 Dec, 2014
3 commits
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Add simple on/off regulator support for ltc2978 and
other pmbus parts supported by the ltc2978 driver.Signed-off-by: Alan Tull
Cc: Guenter Roeck
Cc: Mark Brown
Signed-off-by: Guenter Roeck -
Add support for simple on/off control of each channel.
To add regulator support, the pmbus part driver needs to add
regulator_desc information and number of regulators to its
pmbus_driver_info struct.regulator_desc can be declared using default macro for a
regulator (PMBUS_REGULATOR) that is in pmbus.hThe regulator_init_data can be initialized from either
platform data or the device tree.Signed-off-by: Alan Tull
Reviewed-by: Mark Brown
Signed-off-by: Guenter Roeck -
Add two helper functions:
* pmbus_write_byte_data = paged byte write
* pmbus_update_byte_data = paged byte read/modify/writeSigned-off-by: Alan Tull
Cc: Mark Brown
Signed-off-by: Guenter Roeck
04 Aug, 2014
1 commit
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For TI power management chip TPS40422, READ_TEMPERATURE_2 command is supported on
page 1 of the chip, but the original driver(pmbus.c) only tried to detect this command
on page 0, this will lead to a result that the temperature sensor in page 1 couldn't
be detected. This change is to isolate the tps40422 driver from pmbus.c into a solo
front-end driver.Signed-off-by: Zhu Laiwen
[Guenter Roeck: Dropped unnecessary license text (fixes checkpatch warning)]
Signed-off-by: Guenter Roeck
