Thread (7 messages) flat view 7 messages, 2 authors, 2018-07-05

Re: [PATCH v3 3/3] hwmon: Document the sensor enable attribute and update ibmpowernv

From: Guenter Roeck <linux@roeck-us.net>
Date: 2018-07-05 15:31:30
Also in: linux-hwmon, lkml

On 07/05/2018 06:51 AM, Shilpasri G Bhat wrote:
Signed-off-by: Shilpasri G Bhat <redacted>
---
  Documentation/hwmon/ibmpowernv      | 35 +++++++++++++++-
  Documentation/hwmon/sysfs-interface | 82 +++++++++++++++++++++++++++++++++++++
I guess I wasn't specific enough. The sysfs ABI change must be a separate patch,
independent of the driver (and driver documentation) changes. If you want to document
the driver changes with the same patch as the driver or in a separate patch is up
to you, but I'll want the ABI changes in a separate patch.

Guenter
quoted hunk ↗ jump to hunk
  2 files changed, 115 insertions(+), 2 deletions(-)
diff --git a/Documentation/hwmon/ibmpowernv b/Documentation/hwmon/ibmpowernv
index 8826ba2..77ddba7 100644
--- a/Documentation/hwmon/ibmpowernv
+++ b/Documentation/hwmon/ibmpowernv
@@ -33,9 +33,40 @@ fanX_input		Measured RPM value.
  fanX_min		Threshold RPM for alert generation.
  fanX_fault		0: No fail condition
  			1: Failing fan
+
  tempX_input		Measured ambient temperature.
  tempX_max		Threshold ambient temperature for alert generation.
-inX_input		Measured power supply voltage
+tempX_highest		Historical maximum temperature
+tempX_lowest		Historical minimum temperature
+temp1_enable		Enable/disable all temperature sensors
+			1: Enable
+			0: Disable
+temp[2-N]_enable	State of the sensor (enabled/disabled)
+
+inX_input		Measured power supply voltage (millivolt)
  inX_fault		0: No fail condition.
  			1: Failing power supply.
-power1_input		System power consumption (microWatt)
+inX_highest		Historical maximum voltage
+inX_lowest		Historical minimum voltage
+in1_enable		Enable/disable all voltage sensors
+			1: Enable
+			0: Disable
+in[2-N]_enable		State of the sensor (enabled/disabled)
+
+powerX_input		Power consumption (microWatt)
+powerX_input_highest	Historical maximum power
+powerX_input_lowest	Historical minimum power
+power1_enable		Enable/disable all power sensors
+			1: Enable
+			0: Disable
+power[2-N]_enable	State of the sensor (enabled/disabled)
+
+currX_input		Measured current (milliampere)
+currX_highest		Historical maximum current
+currX_lowest		Historical minimum current
+curr1_enable		Enable/disable all current sensors
+			1: Enable
+			0: Disable
+curr[2-N]_enable	State of the sensor (enabled/disabled)
+
+energyX_input		Cumulative energy (microJoule)
diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface
index fc337c3..d81109c 100644
--- a/Documentation/hwmon/sysfs-interface
+++ b/Documentation/hwmon/sysfs-interface
@@ -171,6 +171,17 @@ in[0-*]_label	Suggested voltage channel label.
  		user-space.
  		RO
  
+in[0-*]_enable
+		Enable or disable the sensor.
+		When disabled the sensor read will return -ENODATA. For chips
+		which do not have the capability to disable/enable single sensor
+		but have support for sensor-group disable/enable, will only have
+		the first attribute with write permission. In such cases write
+		to the first attribute will affect all the sensors of this type.
+		1: Enable
+		0: Disable
+		RW/RO
+
  cpu[0-*]_vid	CPU core reference voltage.
  		Unit: millivolt
  		RO
@@ -236,6 +247,17 @@ fan[1-*]_label	Suggested fan channel label.
  		In all other cases, the label is provided by user-space.
  		RO
  
+fan[1-*]_enable
+		Enable or disable the sensor.
+		When disabled the sensor read will return -ENODATA. For chips
+		which do not have the capability to disable/enable single sensor
+		but have support for sensor-group disable/enable, will only have
+		the first attribute with write permission. In such cases write
+		to the first attribute will affect all the sensors of this type.
+		1: Enable
+		0: Disable
+		RW/RO
+
  Also see the Alarms section for status flags associated with fans.
  
  
@@ -409,6 +431,17 @@ temp_reset_history
  		Reset temp_lowest and temp_highest for all sensors
  		WO
  
+temp[1-*]_enable
+		Enable or disable the sensor.
+		When disabled the sensor read will return -ENODATA. For chips
+		which do not have the capability to disable/enable single sensor
+		but have support for sensor-group disable/enable, will only have
+		the first attribute with write permission. In such cases write
+		to the first attribute will affect all the sensors of this type.
+		1: Enable
+		0: Disable
+		RW/RO
+
  Some chips measure temperature using external thermistors and an ADC, and
  report the temperature measurement as a voltage. Converting this voltage
  back to a temperature (or the other way around for limits) requires
@@ -468,6 +501,17 @@ curr_reset_history
  		Reset currX_lowest and currX_highest for all sensors
  		WO
  
+curr[1-*]_enable
+		Enable or disable the sensor.
+		When disabled the sensor read will return -ENODATA. For chips
+		which do not have the capability to disable/enable single sensor
+		but have support for sensor-group disable/enable, will only have
+		the first attribute with write permission. In such cases write
+		to the first attribute will affect all the sensors of this type.
+		1: Enable
+		0: Disable
+		RW/RO
+
  Also see the Alarms section for status flags associated with currents.
  
  *********
@@ -566,6 +610,19 @@ power[1-*]_crit			Critical maximum power.
  				Unit: microWatt
  				RW
  
+power[1-*]_enable		Enable or disable the sensor.
+				When disabled the sensor read will return
+				-ENODATA. For chips which do not have the
+				capability to disable/enable single sensor but
+				have support for sensor-group disable/enable,
+				will only have the first attribute with write
+				permission. In such cases write	to the first
+				attribute will affect all the sensors of this
+				type.
+				1: Enable
+				0: Disable
+				RW/RO
+
  Also see the Alarms section for status flags associated with power readings.
  
  **********
@@ -576,6 +633,18 @@ energy[1-*]_input		Cumulative energy use
  				Unit: microJoule
  				RO
  
+energy[1-*]_enable		Enable or disable the sensor.
+				When disabled the sensor read will return
+				-ENODATA. For chips which do not have the
+				capability to disable/enable single sensor but
+				have support for sensor-group disable/enable,
+				will only have the first attribute with write
+				permission. In such cases write	to the first
+				attribute will affect all the sensors of this
+				type.
+				1: Enable
+				0: Disable
+				RW/RO
  
  ************
  * Humidity *
@@ -586,6 +655,19 @@ humidity[1-*]_input		Humidity
  				RO
  
  
+humidity[1-*]_enable		Enable or disable the sensor.
+				When disabled the sensor read will return
+				-ENODATA. For chips which do not have the
+				capability to disable/enable single sensor but
+				have support for sensor-group disable/enable,
+				will only have the first attribute with write
+				permission. In such cases write	to the first
+				attribute will affect all the sensors of this
+				type.
+				1: Enable
+				0: Disable
+				RW/RO
+
  **********
  * Alarms *
  **********
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