Merge tag 'defconfig-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

[linux-2.6-microblaze.git] / Documentation / ABI / testing / sysfs-platform-dptf

diff --git a/Documentation/ABI/testing/sysfs-platform-dptf b/Documentation/ABI/testing/sysfs-platform-dptf
index 1418343..53c6b10 100644 (file)
--- a/Documentation/ABI/testing/sysfs-platform-dptf
+++ b/Documentation/ABI/testing/sysfs-platform-dptf
@@ -111,3 +111,43 @@ Contact:   linux-acpi@vger.kernel.org
 Description:
                (RW) The PCH FIVR (Fully Integrated Voltage Regulator) switching frequency in MHz,
                when FIVR clock is 38.4MHz.
+
+What:          /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_freq_mhz
+Date:          September, 2021
+KernelVersion: v5.15
+Contact:       linux-acpi@vger.kernel.org
+Description:
+               (RO) Get the FIVR switching control frequency in MHz.
+
+What:          /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/fivr_switching_fault_status
+Date:          September, 2021
+KernelVersion: v5.15
+Contact:       linux-acpi@vger.kernel.org
+Description:
+               (RO) Read the FIVR switching frequency control fault status.
+
+What:          /sys/bus/platform/devices/INTC1045:00/pch_fivr_switch_frequency/ssc_clock_info
+Date:          September, 2021
+KernelVersion: v5.15
+Contact:       linux-acpi@vger.kernel.org
+Description:
+               (RO) Presents SSC (spread spectrum clock) information for EMI
+               (Electro magnetic interference) control. This is a bit mask.
+               Bits    Description
+               [7:0]   Sets clock spectrum spread percentage:
+                       0x00=0.2% , 0x3F=10%
+                       1 LSB = 0.1% increase in spread (for
+                       settings 0x01 thru 0x1C)
+                       1 LSB = 0.2% increase in spread (for
+                       settings 0x1E thru 0x3F)
+               [8]     When set to 1, enables spread
+                       spectrum clock
+               [9]     0: Triangle mode. FFC frequency
+                       walks around the Fcenter in a linear
+                       fashion
+                       1: Random walk mode. FFC frequency
+                       changes randomly within the SSC
+                       (Spread spectrum clock) range
+               [10]    0: No white noise. 1: Add white noise
+                       to spread waveform
+               [11]    When 1, future writes are ignored.