Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/Documentation/hwmon/aquacomputer_d5next.rst b/Documentation/hwmon/aquacomputer_d5next.rst
new file mode 100644
index 000000000..e238533b5
--- /dev/null
+++ b/Documentation/hwmon/aquacomputer_d5next.rst
@@ -0,0 +1,79 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+Kernel driver aquacomputer-d5next
+=================================
+
+Supported devices:
+
+* Aquacomputer D5 Next watercooling pump
+* Aquacomputer Farbwerk RGB controller
+* Aquacomputer Farbwerk 360 RGB controller
+* Aquacomputer Octo fan controller
+* Aquacomputer Quadro fan controller
+* Aquacomputer High Flow Next sensor
+
+Author: Aleksa Savic
+
+Description
+-----------
+
+This driver exposes hardware sensors of listed Aquacomputer devices, which
+communicate through proprietary USB HID protocols.
+
+For the D5 Next pump, available sensors are pump and fan speed, power, voltage
+and current, as well as coolant temperature and eight virtual temp sensors. Also
+available through debugfs are the serial number, firmware version and power-on
+count. Attaching a fan to it is optional and allows it to be controlled using
+temperature curves directly from the pump. If it's not connected, the fan-related
+sensors will report zeroes.
+
+The pump can be configured either through software or via its physical
+interface. Configuring the pump through this driver is not implemented, as it
+seems to require sending it a complete configuration. That includes addressable
+RGB LEDs, for which there is no standard sysfs interface. Thus, that task is
+better suited for userspace tools.
+
+The Octo exposes four physical and sixteen virtual temperature sensors, as well as
+eight PWM controllable fans, along with their speed (in RPM), power, voltage and
+current.
+
+The Quadro exposes four physical and sixteen virtual temperature sensors, a flow
+sensor and four PWM controllable fans, along with their speed (in RPM), power,
+voltage and current.
+
+The Farbwerk and Farbwerk 360 expose four temperature sensors. Additionally,
+sixteen virtual temperature sensors of the Farbwerk 360 are exposed.
+
+The High Flow Next exposes +5V voltages, water quality, conductivity and flow readings.
+A temperature sensor can be connected to it, in which case it provides its reading
+and an estimation of the dissipated/absorbed power in the liquid cooling loop.
+
+Depending on the device, not all sysfs and debugfs entries will be available.
+Writing to virtual temperature sensors is not currently supported.
+
+Usage notes
+-----------
+
+The devices communicate via HID reports. The driver is loaded automatically by
+the kernel and supports hotswapping.
+
+Sysfs entries
+-------------
+
+================ ==============================================================
+temp[1-20]_input Physical/virtual temperature sensors (in millidegrees Celsius)
+fan[1-8]_input   Pump/fan speed (in RPM) / Flow speed (in dL/h)
+power[1-8]_input Pump/fan power (in micro Watts)
+in[0-7]_input    Pump/fan voltage (in milli Volts)
+curr[1-8]_input  Pump/fan current (in milli Amperes)
+pwm[1-8]         Fan PWM (0 - 255)
+================ ==============================================================
+
+Debugfs entries
+---------------
+
+================ =================================================
+serial_number    Serial number of the device
+firmware_version Version of installed firmware
+power_cycles     Count of how many times the device was powered on
+================ =================================================