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: Nuno Sa <nuno.sa@xxxxxxxxxx>
---
Documentation/ABI/testing/sysfs-class-hwmon | 9 +++++++++
drivers/hwmon/hwmon.c | 1 +
include/linux/hwmon.h | 2 ++
3 files changed, 12 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-class-hwmon b/Documentation/ABI/testing/sysfs-class-hwmon
index 3dac923c9b0e..6c4e68ad4a83 100644
--- a/Documentation/ABI/testing/sysfs-class-hwmon
+++ b/Documentation/ABI/testing/sysfs-class-hwmon
@@ -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.
diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index c7dd3f5b2bd5..18705049ad61 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -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[] = {
diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
index 8cd6a6b33593..67038479b0d1 100644
--- a/include/linux/hwmon.h
+++ b/include/linux/hwmon.h
@@ -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,
--
2.43.0
