diff options
| author | Joaquín Ignacio Aramendía <samsagax@gmail.com> | 2022-11-04 11:07:00 -0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2022-12-04 16:45:02 -0800 |
| commit | ed264e8a7d18c5fec2587ed750c87b75d5348210 (patch) | |
| tree | 9b7ac6bcac868b9ce2dbb68355fc062068f0efd4 /Documentation/hwmon | |
| parent | d5d896b838222fcd037c91c9e0e8f6ab719db05f (diff) | |
| download | linux-next-ed264e8a7d18c5fec2587ed750c87b75d5348210.tar.gz | |
hwmon: add OneXPlayer mini AMD sensors driver
Sensors driver for OXP Handhelds from One-Netbook that expose fan reading
and control via hwmon sysfs.
As far as I could gather all OXP boards have the same DMI strings and
they can be told appart only by the boot cpu vendor (Intel/AMD).
Currently only AMD boards are supported since Intel have different EC
registers and values to read/write.
Fan control is provided via pwm interface in the range [0-255]. AMD
boards have [0-100] as range in the EC, the written value is scaled to
accommodate for that.
Signed-off-by: Joaquín Ignacio Aramendía <samsagax@gmail.com>
Link: https://lore.kernel.org/r/20221104140659.593608-1-samsagax@gmail.com
[groeck: Removed misleading comment about module_platform_driver()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/hwmon/oxp-sensors.rst | 34 |
2 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index ddff3c5713d7..fe2cc6b73634 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -160,6 +160,7 @@ Hardware Monitoring Kernel Drivers nzxt-kraken2 nzxt-smart2 occ + oxp-sensors pc87360 pc87427 pcf8591 diff --git a/Documentation/hwmon/oxp-sensors.rst b/Documentation/hwmon/oxp-sensors.rst new file mode 100644 index 000000000000..f612dddc964a --- /dev/null +++ b/Documentation/hwmon/oxp-sensors.rst @@ -0,0 +1,34 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver oxp-sensors +========================= + +Author: + - Joaquín Ignacio Aramendía <samsagax@gmail.com> + +Description: +------------ + +One X Player devices from One Netbook provide fan readings and fan control +through its Embedded Controller. + +Currently only supports AMD boards from the One X Player lineup. Intel boards +could be supported if we could figure out the EC registers and values to write +to since the EC layout and model is different. + +Sysfs entries +------------- + +The following attributes are supported: + +fan1_input + Read Only. Reads current fan RMP. + +pwm1_enable + Read Write. Enable manual fan control. Write "1" to set to manual, write "0" + to let the EC control de fan speed. Read this attribute to see current status. + +pwm1 + Read Write. Read this attribute to see current duty cycle in the range [0-255]. + When pwm1_enable is set to "1" (manual) write any value in the range [0-255] + to set fan speed. |