[PATCH v3 3/6] Documentation: sysfs: Document the Lantiq PEF2256 sysfs entry

Herve Codina
2023-03-22T13:47:30Z

Document the "subordinate" sysfs attribute exposed by the PEF2256
driver.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
.../ABI/testing/sysfs-bus-platform-devices-pef2256 | 12 ++++++++++++
1 file changed, 12 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-platform-devices-pef2256

diff --git a/Documentation/ABI/testing/sysfs-bus-platform-devices-pef2256 b/Documentation/ABI/testing/sysfs-bus-platform-devices-pef2256
new file mode 100644
index 000000000000..95ba1ae55daf
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-platform-devices-pef2256
@@ -0,0 +1,12 @@
+What: /sys/bus/platform/devices/*.pef2256/subordinate
+KernelVersion: 6.4
+Contact: Herve Codina <herve.codina@bootlin.com>
+Description:
+ (RW) Controls whether the PEF2256 works as subordinate or main
+ device mode.
+
+ - 0: main device mode
+ - 1: subordinate mode
+
+ In subordinate device mode it synchronizes on line interface
+ clock signals. Otherwise, it synchronizes on internal clocks.
--
2.39.2