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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-05 10:38:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-05 10:38:24 -0700
commit7fb68b6c821be7165d5be5d8801d909912af9159 (patch)
tree2a5437907a8238fc2789f8aa53fec835f7200a9e /Documentation/ABI
parentMerge tag 'tag-chrome-platform-for-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux (diff)
parentplatform/x86: use PLATFORM_DEVID_NONE instead of -1 (diff)
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Merge tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede: - AMD Platform Management Framework (PMF) driver with AMT and QnQF support - AMD PMC: Improved logging for debugging s2idle issues - Big refactor of the ACPI/x86 backlight handling, ensuring that we only register 1 /sys/class/backlight device per LCD panel - Microsoft Surface: - Surface Laptop Go 2 support - Surface Pro 8 HID sensor support - Asus WMI: - Lots of cleanups - Support for TUF RGB keyboard backlight control - Add support for ROG X13 tablet mode - Siemens Simatic: IPC227G and IPC427G support - Toshiba ACPI laptop driver: Fan hwmon and battery ECO mode support - tools/power/x86/intel-speed-select: Various improvements - Various cleanups - Various small bugfixes * tag 'platform-drivers-x86-v6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (153 commits) platform/x86: use PLATFORM_DEVID_NONE instead of -1 platform/x86/amd: pmc: Dump idle mask during "check" stage instead platform/x86/intel/wmi: thunderbolt: Use dev_groups callback platform/x86/amd: pmc: remove CONFIG_DEBUG_FS checks platform/surface: Split memcpy() of struct ssam_event flexible array platform/x86: compal-laptop: Get rid of a few forward declarations platform/x86: intel-uncore-freq: Use sysfs_emit() to instead of scnprintf() platform/x86: dell-smbios-base: Use sysfs_emit() platform/x86/amd/pmf: Remove unused power_delta instances platform/x86/amd/pmf: install notify handler after acpi init Documentation/ABI/testing/sysfs-amd-pmf: Add ABI doc for AMD PMF platform/x86/amd/pmf: Add sysfs to toggle CnQF platform/x86/amd/pmf: Add support for CnQF platform/x86/amd: pmc: Fix build without debugfs platform/x86: hp-wmi: Support touchpad on/off platform/x86: int3472/discrete: Drop a forward declaration platform/x86: toshiba_acpi: change turn_on_panel_on_resume to static platform/x86: wmi: Drop forward declaration of static functions platform/x86: toshiba_acpi: Remove duplicate include platform/x86: msi-laptop: Change DMI match / alias strings to fix module autoloading ...
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-amd-pmc13
-rw-r--r--Documentation/ABI/testing/sysfs-amd-pmf13
-rw-r--r--Documentation/ABI/testing/sysfs-class-power5
-rw-r--r--Documentation/ABI/testing/sysfs-platform-asus-wmi41
4 files changed, 71 insertions, 1 deletions
diff --git a/Documentation/ABI/testing/sysfs-amd-pmc b/Documentation/ABI/testing/sysfs-amd-pmc
new file mode 100644
index 000000000000..c421b72844f1
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-amd-pmc
@@ -0,0 +1,13 @@
+What: /sys/bus/platform/drivers/amd_pmc/*/smu_fw_version
+Date: October 2022
+Contact: Mario Limonciello <mario.limonciello@amd.com>
+Description: Reading this file reports the version of the firmware loaded to
+ System Management Unit (SMU) contained in AMD CPUs and
+ APUs.
+
+What: /sys/bus/platform/drivers/amd_pmc/*/smu_program
+Date: October 2022
+Contact: Mario Limonciello <mario.limonciello@amd.com>
+Description: Reading this file reports the program corresponding to the SMU
+ firmware version. The program field is used to disambiguate two
+ APU/CPU models that can share the same firmware binary.
diff --git a/Documentation/ABI/testing/sysfs-amd-pmf b/Documentation/ABI/testing/sysfs-amd-pmf
new file mode 100644
index 000000000000..7fc0e1c2b76b
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-amd-pmf
@@ -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.
diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index a9ce63cfbe87..e434fc523291 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -364,7 +364,10 @@ Date: April 2019
Contact: linux-pm@vger.kernel.org
Description:
Represents a battery percentage level, above which charging will
- stop.
+ stop. Not all hardware is capable of setting this to an arbitrary
+ percentage. Drivers will round written values to the nearest
+ supported value. Reading back the value will show the actual
+ threshold set by the driver.
Access: Read, Write
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 04885738cf15..a77a004a1baa 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -57,3 +57,44 @@ Description:
* 0 - default,
* 1 - overboost,
* 2 - silent
+
+What: /sys/devices/platform/<platform>/gpu_mux_mode
+Date: Aug 2022
+KernelVersion: 6.1
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Switch the GPU hardware MUX mode. Laptops with this feature can
+ can be toggled to boot with only the dGPU (discrete mode) or in
+ standard Optimus/Hybrid mode. On switch a reboot is required:
+
+ * 0 - Discrete GPU,
+ * 1 - Optimus/Hybrid,
+
+What: /sys/devices/platform/<platform>/dgpu_disable
+Date: Aug 2022
+KernelVersion: 5.17
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Disable discrete GPU:
+ * 0 - Enable dGPU,
+ * 1 - Disable dGPU
+
+What: /sys/devices/platform/<platform>/egpu_enable
+Date: Aug 2022
+KernelVersion: 5.17
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Enable the external GPU paired with ROG X-Flow laptops.
+ Toggling this setting will also trigger ACPI to disable the dGPU:
+
+ * 0 - Disable,
+ * 1 - Enable
+
+What: /sys/devices/platform/<platform>/panel_od
+Date: Aug 2022
+KernelVersion: 5.17
+Contact: "Luke Jones" <luke@ljones.dev>
+Description:
+ Enable an LCD response-time boost to reduce or remove ghosting:
+ * 0 - Disable,
+ * 1 - Enable