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

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Message-Id: <1481027929-13704-6-git-send-email-benjamin.gaignard@st.com>
Date:   Tue,  6 Dec 2016 13:38:47 +0100
From:   Benjamin Gaignard <benjamin.gaignard@...aro.org>
To:     lee.jones@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        alexandre.torgue@...com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, thierry.reding@...il.com,
        linux-pwm@...r.kernel.org, jic23@...nel.org, knaack.h@....de,
        lars@...afoo.de, pmeerw@...erw.net, linux-iio@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     fabrice.gasnier@...com, gerald.baeza@...com,
        arnaud.pouliquen@...com, linus.walleij@...aro.org,
        linaro-kernel@...ts.linaro.org, benjamin.gaignard@...aro.org,
        Benjamin Gaignard <benjamin.gaignard@...com>
Subject: [PATCH v4 5/7] IIO: add bindings for STM32 timer trigger driver

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@...com>
---
 .../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@...10000 {
+		#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