| 51ed3428 | 20-Jan-2026 |
Rong Zhang <i@rong.moe> |
platform/x86: lenovo-wmi-other: Add HWMON for fan reporting/tuning
Register an HWMON device for fan reporting/tuning according to
Capability Data 00 (capdata00) and Fan Test Data (capdata_fan) provi
platform/x86: lenovo-wmi-other: Add HWMON for fan reporting/tuning
Register an HWMON device for fan reporting/tuning according to
Capability Data 00 (capdata00) and Fan Test Data (capdata_fan) provided
by lenovo-wmi-capdata. The corresponding HWMON nodes are:
- fanX_div: internal RPM divisor
- fanX_input: current RPM
- fanX_max: maximum RPM
- fanX_min: minimum RPM
- fanX_target: target RPM (tunable, 0=auto)
Information from capdata00 and capdata_fan are used to control the
visibility and constraints of HWMON attributes. Fan info from capdata00
is collected on bind, while fan info from capdata_fan is collected in a
callback. Once all fan info is collected, register the HWMON device.
Signed-off-by: Rong Zhang <i@rong.moe>
Reviewed-by: Derek J. Clark <derekjohn.clark@gmail.com>
Tested-by: Kurt Borja <kuurtb@gmail.com>
Link: https://patch.msgid.link/20260120182104.163424-8-i@rong.moe
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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| 2bd1870a | 29-Apr-2025 |
Armin Wolf <W_Armin@gmx.de> |
platform/x86: dell-ddv: Expose the battery health to userspace
The health of a given battery is exposed over the Dell DDV WMI
interface using the "BatteryManufactureAceess" WMI method. The
resulting
platform/x86: dell-ddv: Expose the battery health to userspace
The health of a given battery is exposed over the Dell DDV WMI
interface using the "BatteryManufactureAceess" WMI method. The
resulting data contains, among other data, the health status of
the battery.
Expose this value to userspace using the power supply extension
interface.
Tested on a Dell Inspiron 3505.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250429003606.303870-4-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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| 303ecf69 | 29-Apr-2025 |
Armin Wolf <W_Armin@gmx.de> |
platform/x86: dell-ddv: Expose the battery manufacture date to userspace
The manufacture date of a given battery is exposed over the Dell DDV
WMI interface using the "BatteryManufactureDate" WMI met
platform/x86: dell-ddv: Expose the battery manufacture date to userspace
The manufacture date of a given battery is exposed over the Dell DDV
WMI interface using the "BatteryManufactureDate" WMI method. The
resulting data contains the manufacture date of the battery encoded
inside a 16-bit value as described in the Smart Battery Data
Specification.
Expose this value to userspace using the power supply extension
interface.
Tested on a Dell Inspiron 3505.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250429003606.303870-3-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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| 058de163 | 29-Apr-2025 |
Armin Wolf <W_Armin@gmx.de> |
platform/x86: dell-ddv: Implement the battery matching algorithm
Since commit db0a507cb24d ("ACPICA: Update integer-to-hex-string
conversions") the battery serial number is no longer distorted,
allo
platform/x86: dell-ddv: Implement the battery matching algorithm
Since commit db0a507cb24d ("ACPICA: Update integer-to-hex-string
conversions") the battery serial number is no longer distorted,
allowing us to finally implement the battery matching algorithm.
The battery matchign algorithm is necessary when translating between
ACPI batteries and the associated indices used by the WMI interface
based on the battery serial number. Since this serial number can only
be retrieved when the battery is present we cannot perform the initial
translation inside dell_wmi_ddv_add_battery() because the ACPI battery
might be absent at this point in time.
Introduce dell_wmi_ddv_battery_translate() which implements the
battery matching algorithm and replaces dell_wmi_ddv_battery_index().
Also implement a translation cache for caching previous translations
between ACPI batteries and indices. This is necessary because
performing a translation can be very expensive.
Tested on a Dell Inspiron 3505.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20250429003606.303870-2-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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| b64c1a15 | 08-May-2023 |
Armin Wolf <W_Armin@gmx.de> |
platform/x86: dell-ddv: Add documentation
The WMI interface used by the dell-wmi-ddv driver contains
many methods which are currently unused, making it difficult
to document these inside the drivers
platform/x86: dell-ddv: Add documentation
The WMI interface used by the dell-wmi-ddv driver contains
many methods which are currently unused, making it difficult
to document these inside the drivers source code.
Create the necessary documentation based on current knowledge
so that all details of the WMI interface can be written down
for later use.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20230508204241.11076-1-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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