Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
84 lines
3.8 KiB
ReStructuredText
84 lines
3.8 KiB
ReStructuredText
Kernel Driver Lochnagar
|
|
=======================
|
|
|
|
Supported systems:
|
|
* Cirrus Logic : Lochnagar 2
|
|
|
|
Author: Lucas A. Tanure Alves
|
|
|
|
Description
|
|
-----------
|
|
|
|
Lochnagar 2 features built-in Current Monitor circuitry that allows for the
|
|
measurement of both voltage and current on up to eight of the supply voltage
|
|
rails provided to the minicards. The Current Monitor does not require any
|
|
hardware modifications or external circuitry to operate.
|
|
|
|
The current and voltage measurements are obtained through the standard register
|
|
map interface to the Lochnagar board controller, and can therefore be monitored
|
|
by software.
|
|
|
|
Sysfs attributes
|
|
----------------
|
|
|
|
======================= =======================================================
|
|
temp1_input The Lochnagar board temperature (milliCelsius)
|
|
in0_input Measured voltage for DBVDD1 (milliVolts)
|
|
in0_label "DBVDD1"
|
|
curr1_input Measured current for DBVDD1 (milliAmps)
|
|
curr1_label "DBVDD1"
|
|
power1_average Measured average power for DBVDD1 (microWatts)
|
|
power1_average_interval Power averaging time input valid from 1 to 1708mS
|
|
power1_label "DBVDD1"
|
|
in1_input Measured voltage for 1V8 DSP (milliVolts)
|
|
in1_label "1V8 DSP"
|
|
curr2_input Measured current for 1V8 DSP (milliAmps)
|
|
curr2_label "1V8 DSP"
|
|
power2_average Measured average power for 1V8 DSP (microWatts)
|
|
power2_average_interval Power averaging time input valid from 1 to 1708mS
|
|
power2_label "1V8 DSP"
|
|
in2_input Measured voltage for 1V8 CDC (milliVolts)
|
|
in2_label "1V8 CDC"
|
|
curr3_input Measured current for 1V8 CDC (milliAmps)
|
|
curr3_label "1V8 CDC"
|
|
power3_average Measured average power for 1V8 CDC (microWatts)
|
|
power3_average_interval Power averaging time input valid from 1 to 1708mS
|
|
power3_label "1V8 CDC"
|
|
in3_input Measured voltage for VDDCORE DSP (milliVolts)
|
|
in3_label "VDDCORE DSP"
|
|
curr4_input Measured current for VDDCORE DSP (milliAmps)
|
|
curr4_label "VDDCORE DSP"
|
|
power4_average Measured average power for VDDCORE DSP (microWatts)
|
|
power4_average_interval Power averaging time input valid from 1 to 1708mS
|
|
power4_label "VDDCORE DSP"
|
|
in4_input Measured voltage for AVDD 1V8 (milliVolts)
|
|
in4_label "AVDD 1V8"
|
|
curr5_input Measured current for AVDD 1V8 (milliAmps)
|
|
curr5_label "AVDD 1V8"
|
|
power5_average Measured average power for AVDD 1V8 (microWatts)
|
|
power5_average_interval Power averaging time input valid from 1 to 1708mS
|
|
power5_label "AVDD 1V8"
|
|
curr6_input Measured current for SYSVDD (milliAmps)
|
|
curr6_label "SYSVDD"
|
|
power6_average Measured average power for SYSVDD (microWatts)
|
|
power6_average_interval Power averaging time input valid from 1 to 1708mS
|
|
power6_label "SYSVDD"
|
|
in6_input Measured voltage for VDDCORE CDC (milliVolts)
|
|
in6_label "VDDCORE CDC"
|
|
curr7_input Measured current for VDDCORE CDC (milliAmps)
|
|
curr7_label "VDDCORE CDC"
|
|
power7_average Measured average power for VDDCORE CDC (microWatts)
|
|
power7_average_interval Power averaging time input valid from 1 to 1708mS
|
|
power7_label "VDDCORE CDC"
|
|
in7_input Measured voltage for MICVDD (milliVolts)
|
|
in7_label "MICVDD"
|
|
curr8_input Measured current for MICVDD (milliAmps)
|
|
curr8_label "MICVDD"
|
|
power8_average Measured average power for MICVDD (microWatts)
|
|
power8_average_interval Power averaging time input valid from 1 to 1708mS
|
|
power8_label "MICVDD"
|
|
======================= =======================================================
|
|
|
|
Note:
|
|
It is not possible to measure voltage on the SYSVDD rail.
|