[PATCH 4/4] Documentation: ABI: Document Broadcom STB PSCI firmware files

[Florian Fainelli]

Document the attributes created by the Broadcom STB PSCI firmware code
to allow retrieving the firmware version and the control of the CPU
retention upon system suspend entry.

Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-firmware-brcmstb | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-firmware-brcmstb

diff --git a/Documentation/ABI/testing/sysfs-firmware-brcmstb b/Documentation/ABI/testing/sysfs-firmware-brcmstb
new file mode 100644
index 000000000000..5ebd8d0a34be
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-firmware-brcmstb
@@ -0,0 +1,16 @@
+What:		/sys/firmware/brcmstb/mon_version
+Date:		Jan 2022
+Contact:	Florian Fainelli <f.fainelli@xxxxxxxxx>
+Description:
+		Reports the ARM trusted firmware (monitor) version running on
+		the Broadcom STB platforms under the format:
+		A.B.C.D
+
+What:		/sys/firmware/brcmstb/cpu_retention
+Date:		Jan 2022
+Contact:	Florian Fainelli <f.fainelli@xxxxxxxxx>
+Description:
+		Allows the toggling of whether S2 standby should be entered
+		with (default) or without CPU retention.
+
+		Accepted values are 0 or 1.
-- 
2.25.1