From: Benjamin Gaignard <[email protected]>

In addition of the generic sysfs-bus-counter ABI stm32-timer-cnt
offerts three functionality:
- enable the counter
- set preset value
- allow to read counter direction

Signed-off-by: Benjamin Gaignard <[email protected]>
Signed-off-by: William Breathitt Gray <[email protected]>
---
 .../ABI/testing/sysfs-bus-counter-stm32-timer-cnt   | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-counter-stm32-timer-cnt

diff --git a/Documentation/ABI/testing/sysfs-bus-counter-stm32-timer-cnt 
b/Documentation/ABI/testing/sysfs-bus-counter-stm32-timer-cnt
new file mode 100644
index 000000000000..73328e8e6d7e
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-counter-stm32-timer-cnt
@@ -0,0 +1,21 @@
+What:          /sys/bus/counter/devices/counterX/countY_direction
+KernelVersion: 4.17
+Contact:       [email protected]
+Description:
+               Read-only attribute that indicates the count direction of
+               Count Y. Two count directions are available: Forward and
+               Backward.
+
+What:          /sys/bus/counter/devices/counterX/countY_enable
+KernelVersion: 4.17
+Contact:       [email protected]
+Description:
+               Whether channel Y inputs A and B are enabled. Valid attribute
+               values are boolean.
+
+What:          /sys/bus/counter/devices/counterX/countY_preset
+KernelVersion: 4.17
+Contact:       [email protected]
+Description:
+               If the counter device supports preset registers, the preset
+               count for channel Y is provided by this attribute.
-- 
2.16.2

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