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authorFabrice Gasnier <fabrice.gasnier@st.com>2017-08-28 12:04:10 +0200
committerLee Jones <lee.jones@linaro.org>2017-09-04 14:49:18 +0100
commit5dae3c90fe76f18815945177498e680e711a4347 (patch)
treecfa111a6217aa02f620759aa9a865a914524eddb /Documentation/devicetree
parentefd11ad164bf78c2ac1d9d8c27257bbdba494388 (diff)
dt-bindings: iio: Add STM32 LPTimer trigger binding
Add documentation for STMicroelectronics STM32 Low-Power Timer Trigger binding. Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt23
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diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt
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+STMicroelectronics STM32 Low-Power Timer Trigger
+
+STM32 Low-Power Timer provides trigger source (LPTIM output) that can be used
+by STM32 internal ADC and/or DAC.
+
+Must be a sub-node of an STM32 Low-Power Timer device tree node.
+See ../mfd/stm32-lptimer.txt for details about the parent node.
+
+Required properties:
+- compatible: Must be "st,stm32-lptimer-trigger".
+- reg: Identify trigger hardware block. Must be 0, 1 or 2
+ respectively for lptimer1, lptimer2 or lptimer3
+ trigger output.
+
+Example:
+ timer@40002400 {
+ compatible = "st,stm32-lptimer";
+ ...
+ trigger@0 {
+ compatible = "st,stm32-lptimer-trigger";
+ reg = <0>;
+ };
+ };