Hi, On 7/12/22 16:58, Shyam Sundar S K wrote: > AMD PMF driver provides the flexibility to turn "on" or "off" > CnQF feature (introduced in the earlier patch). > > Add corresponding ABI documentation for the new sysfs node. > > Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx> Thanks, patch looks good to me: Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx> Regards, Hans > --- > Documentation/ABI/testing/sysfs-amd-pmf | 11 +++++++++++ > 1 file changed, 11 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-amd-pmf > > diff --git a/Documentation/ABI/testing/sysfs-amd-pmf b/Documentation/ABI/testing/sysfs-amd-pmf > new file mode 100644 > index 000000000000..5935dc549185 > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-amd-pmf > @@ -0,0 +1,11 @@ > +What: /sys/devices/platform/AMDI0102\:00/cnqf/feat > +Date: July 2022 > +Contact: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx> > +Description: Reading this file tells if the AMD Platform Management(PMF) > + Cool n Quiet Framework(CnQF) feature is enabled or not. > + > + This feature is not enabled by default and gets only turned on > + if OEM BIOS passes a "flag" to PMF ACPI function (index 11 or 12) > + or in case the user writes "on". > + > + To turn off CnQF user can write "off" to the sysfs node.
