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.