Commit 35c1bfb9 authored by Nuno Sa's avatar Nuno Sa Committed by Guenter Roeck
Browse files

hwmon: add fault attribute for voltage channels 



Sometimes a voltage channel might have an hard failure (eg: a shorted
MOSFET). Hence, add a fault attribute to report such failures.

Signed-off-by: default avatarNuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240129-b4-ltc4282-support-v4-2-fe75798164cc@analog.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent d07c41eb

Documentation/ABI/testing/sysfs-class-hwmon

+9 −0
Original line number Diff line number Diff line
@@ -149,6 +149,15 @@ Description: 


		RW



What:		/sys/class/hwmon/hwmonX/inY_fault

Description:

		Reports a voltage hard failure (eg: shorted component)



		- 1: Failed

		- 0: Ok



		RO



What:		/sys/class/hwmon/hwmonX/cpuY_vid

Description:

		CPU core reference voltage.

drivers/hwmon/hwmon.c

+1 −0
Original line number Diff line number Diff line
@@ -510,6 +510,7 @@ static const char * const hwmon_in_attr_templates[] = { 
	[hwmon_in_rated_min] = "in%d_rated_min",

	[hwmon_in_rated_max] = "in%d_rated_max",

	[hwmon_in_beep] = "in%d_beep",

	[hwmon_in_fault] = "in%d_fault",

};



static const char * const hwmon_curr_attr_templates[] = {

include/linux/hwmon.h

+2 −0
Original line number Diff line number Diff line
@@ -141,6 +141,7 @@ enum hwmon_in_attributes { 
	hwmon_in_rated_min,

	hwmon_in_rated_max,

	hwmon_in_beep,

	hwmon_in_fault,

};



#define HWMON_I_ENABLE		BIT(hwmon_in_enable)
@@ -162,6 +163,7 @@ enum hwmon_in_attributes { 
#define HWMON_I_RATED_MIN	BIT(hwmon_in_rated_min)

#define HWMON_I_RATED_MAX	BIT(hwmon_in_rated_max)

#define HWMON_I_BEEP		BIT(hwmon_in_beep)

#define HWMON_I_FAULT		BIT(hwmon_in_fault)



enum hwmon_curr_attributes {

	hwmon_curr_enable,