[PATCH v4 5/7] IIO: add bindings for STM32 timer trigger driver

[Benjamin Gaignard <benjamin.gaignard-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>]

Define bindings for STM32 timer trigger

version 4:
- remove triggers enumeration from DT
- add reg parameter

version 3:
- change file name
- add cross reference with mfd bindings

version 2:
- only keep one compatible
- add DT parameters to set lists of the triggers:
  one list describe the triggers created by the device
  another one give the triggers accepted by the device

Signed-off-by: Benjamin Gaignard <benjamin.gaignard-qxv4g6HH51o@public.gmane.org>
---
 .../bindings/iio/timer/stm32-timer-trigger.txt     | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt

diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
new file mode 100644
index 0000000..fbaeba9
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
@@ -0,0 +1,23 @@
+STMicroelectronics STM32 General Purpose Timer IIO timer bindings
+
+Must be a sub-node of an STM32 General Purpose Timer device tree node.
+See ../mfd/stm32-general-purpose-timer.txt for details about the parent node.
+
+Required parameters:
+- compatible:	Must be "st,stm32-timer-trigger".
+- reg:		Define triggers configuration of the hardware IP.
+
+Example:
+	gptimer@40010000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "st,stm32-gptimer";
+		reg = <0x40010000 0x400>;
+		clocks = <&rcc 0 160>;
+		clock-names = "clk_int";
+
+		timer@0 {
+			compatible = "st,stm32-timer-trigger";
+			reg = <0>;
+		};
+	};
-- 
1.9.1

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