mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF 

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 and
also update MAINTAINERS file with this new information

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20220922131202.56529-4-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Shyam Sundar S K 2022-09-22 18:42:02 +05:30 committed by Hans de Goede
parent 3dae582529
commit 1590ac2c66
2 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Documentation/ABI/testing/sysfs-amd-pmf Normal file
View File

@ -0,0 +1,13 @@
What: /sys/devices/platform/*/cnqf_enable
Date: September 2022
Contact: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
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.
Note: Systems that support auto mode will not have this sysfs file
available.

1
MAINTAINERS
View File

@ -1026,6 +1026,7 @@ AMD PMF DRIVER
M: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
L: platform-driver-x86@vger.kernel.org
S: Maintained
F: Documentation/ABI/testing/sysfs-amd-pmf
F: drivers/platform/x86/amd/pmf/
AMD HSMP DRIVER