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| author | Vadim Pasternak <vadimp@nvidia.com> | 2023-08-22 11:34:51 +0000 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2023-08-23 17:31:30 +0200 |
| commit | 42bab8eac42584ecae2357a1a12b6588ee4cc53c (patch) | |
| tree | 76e5a72af4fac8d228b206c9d2793b3ecaea6fc9 /Documentation/ABI/stable | |
| parent | e2aabb7cd4dd145c07d6a66407b01c635710849e (diff) | |
| download | linux-42bab8eac42584ecae2357a1a12b6588ee4cc53c.tar.gz | |
Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
Add documentation for the new attributes:
- CPLD versioning: "cpld5_pn", "cpld5_version", "cpld5_version_min".
- JTAG capability: "jtag_cap", indicating the available method of
CPLD/FPGA devices field update.
- System lid status: "lid_open".
- Reset caused by long press of power button: "reset_long_pwr_pb".
- Reset caused by switch board DC-DC converter device failure:
"reset_swb_dc_dc_pwr_fail".
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Reviewed-by: Michael Shych <michaelsh@nvidia.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230822113451.13785-17-vadimp@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'Documentation/ABI/stable')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-mlxreg-io | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-mlxreg-io b/Documentation/ABI/stable/sysfs-driver-mlxreg-io index 60953903d0077..2cdfd09123da0 100644 --- a/Documentation/ABI/stable/sysfs-driver-mlxreg-io +++ b/Documentation/ABI/stable/sysfs-driver-mlxreg-io @@ -662,3 +662,56 @@ Description: This file shows the system reset cause due to AC power failure. Value 1 in file means this is reset cause, 0 - otherwise. The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_pn +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_version +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld5_version_min +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: These files show with which CPLD part numbers, version and minor + versions have been burned the 5-th CPLD device equipped on a + system. + + The files are read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_cap +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file indicates the available method of CPLD/FPGA devices + field update through the JTAG chain: + + b00 - field update through LPC bus register memory space. + b01 - Reserved. + b10 - Reserved. + b11 - field update through CPU GPIOs bit-banging. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/lid_open +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: 1 - indicates that system lid is opened, otherwise 0. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_long_pwr_pb +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file if set 1 indicates that system has been reset by + long press of power button. + + The file is read only. + +What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_dc_dc_pwr_fail +Date: August 2023 +KernelVersion: 6.6 +Contact: Vadim Pasternak <vadimp@nvidia.com> +Description: This file shows 1 in case the system reset happened due to the + failure of any DC-DC power converter devices equipped on the + switch board. + + The file is read only. |