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Message-ID: <1498055415-31513-6-git-send-email-fabrice.gasnier@st.com>
Date: Wed, 21 Jun 2017 16:30:12 +0200
From: Fabrice Gasnier <fabrice.gasnier@...com>
To: <lee.jones@...aro.org>, <benjamin.gaignard@...aro.org>,
<jic23@...nel.org>, <thierry.reding@...il.com>,
<robh+dt@...nel.org>
CC: <mark.rutland@....com>, <alexandre.torgue@...com>,
<mcoquelin.stm32@...il.com>, <fabrice.gasnier@...com>,
<benjamin.gaignard@...com>, <linux-iio@...r.kernel.org>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, <linux-pwm@...r.kernel.org>
Subject: [PATCH v2 5/8] 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@...com>
---
Changes in v2:
- s/Low Power/Low-Power
- remove leading 0x in example (parent node)
- improve reg property description
---
.../bindings/iio/timer/stm32-lptimer-trigger.txt | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt
diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt
new file mode 100644
index 0000000..466d99f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/timer/stm32-lptimer-trigger.txt
@@ -0,0 +1,23 @@
+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: Selects trigger hardware block. Must be 0, 1 or 2
+ respectively for lptimer1, lptimer2 or lptimer3
+ trigger output.
+
+Example:
+ lptimer1: lptimer@...02400 {
+ compatible = "st,stm32-lptimer";
+ ...
+ trigger@0 {
+ compatible = "st,stm32-lptimer-trigger";
+ reg = <0>;
+ };
+ };
--
1.9.1
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