From: William Breathitt Gray <vilhelm.gray@gmail.com>
To: jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net
Cc: benjamin.gaignard@st.com, linux-iio@vger.kernel.org,
linux-kernel@vger.kernel.org,
William Breathitt Gray <vilhelm.gray@gmail.com>
Subject: [PATCH v5 6/8] dt-bindings: counter: Document stm32 quadrature encoder
Date: Fri, 9 Mar 2018 13:43:32 -0500 [thread overview]
Message-ID: <7f160c33e6e37c13974054f3dcfea4a02f1250fb.1520614431.git.vilhelm.gray@gmail.com> (raw)
In-Reply-To: <cover.1520614431.git.vilhelm.gray@gmail.com>
From: Benjamin Gaignard <benjamin.gaignard@st.com>
Add bindings for STM32 Timer quadrature encoder.
It is a sub-node of STM32 Timer which implement the
counter part of the hardware.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
---
.../bindings/counter/stm32-timer-cnt.txt | 26 ++++++++++++++++++++++
.../devicetree/bindings/mfd/stm32-timers.txt | 7 ++++++
2 files changed, 33 insertions(+)
create mode 100644 Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt
diff --git a/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt
new file mode 100644
index 000000000000..377728128bef
--- /dev/null
+++ b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt
@@ -0,0 +1,26 @@
+STMicroelectronics STM32 Timer quadrature encoder
+
+STM32 Timer provides quadrature encoder counter mode to detect
+angular position and direction of rotary elements,
+from IN1 and IN2 input signals.
+
+Must be a sub-node of an STM32 Timer device tree node.
+See ../mfd/stm32-timers.txt for details about the parent node.
+
+Required properties:
+- compatible: Must be "st,stm32-timer-counter".
+- pinctrl-names: Set to "default".
+- pinctrl-0: List of phandles pointing to pin configuration nodes,
+ to set IN1/IN2 pins in mode of operation for Low-Power
+ Timer input on external pin.
+
+Example:
+ timers@40010000 {
+ compatible = "st,stm32-timers";
+ ...
+ counter {
+ compatible = "st,stm32-timer-counter";
+ pinctrl-names = "default";
+ pinctrl-0 = <&tim1_in_pins>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mfd/stm32-timers.txt b/Documentation/devicetree/bindings/mfd/stm32-timers.txt
index 1db6e0057a63..ff9c14ada30b 100644
--- a/Documentation/devicetree/bindings/mfd/stm32-timers.txt
+++ b/Documentation/devicetree/bindings/mfd/stm32-timers.txt
@@ -23,6 +23,7 @@ Optional parameters:
Optional subnodes:
- pwm: See ../pwm/pwm-stm32.txt
- timer: See ../iio/timer/stm32-timer-trigger.txt
+- counter: See ../counter/stm32-timer-cnt.txt
Example:
timers@40010000 {
@@ -43,4 +44,10 @@ Example:
compatible = "st,stm32-timer-trigger";
reg = <0>;
};
+
+ counter {
+ compatible = "st,stm32-timer-counter";
+ pinctrl-names = "default";
+ pinctrl-0 = <&tim1_in_pins>;
+ };
};
--
2.16.2
next prev parent reply other threads:[~2018-03-09 18:43 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-09 18:41 [PATCH v5 0/8] Introduce the Counter subsystem William Breathitt Gray
2018-03-09 18:42 ` [PATCH v5 1/8] counter: Introduce the Generic Counter interface William Breathitt Gray
2018-03-24 17:33 ` Jonathan Cameron
2018-03-25 7:46 ` Joe Perches
2018-03-25 16:56 ` Jonathan Cameron
2018-03-25 17:04 ` Joe Perches
2018-04-01 0:41 ` William Breathitt Gray
2018-04-06 15:02 ` Jonathan Cameron
2018-03-09 18:42 ` [PATCH v5 2/8] counter: Documentation: Add Generic Counter sysfs documentation William Breathitt Gray
2018-03-24 17:05 ` Jonathan Cameron
2018-03-09 18:42 ` [PATCH v5 3/8] docs: Add Generic Counter interface documentation William Breathitt Gray
2018-03-17 23:43 ` Randy Dunlap
2018-03-24 16:09 ` Jonathan Cameron
2018-03-09 18:43 ` [PATCH v5 4/8] counter: 104-quad-8: Add Generic Counter interface support William Breathitt Gray
2018-03-24 17:14 ` Jonathan Cameron
2018-03-09 18:43 ` [PATCH v5 5/8] counter: 104-quad-8: Documentation: Add Generic Counter sysfs documentation William Breathitt Gray
2018-03-24 17:21 ` Jonathan Cameron
2018-04-02 19:41 ` William Breathitt Gray
2018-04-06 15:08 ` Jonathan Cameron
2018-03-09 18:43 ` William Breathitt Gray [this message]
2018-03-24 17:23 ` [PATCH v5 6/8] dt-bindings: counter: Document stm32 quadrature encoder Jonathan Cameron
2018-03-09 18:43 ` [PATCH v5 7/8] counter: stm32-timer-cnt: Add sysfs documentation William Breathitt Gray
2018-03-24 17:27 ` Jonathan Cameron
2018-03-09 18:43 ` [PATCH v5 8/8] Counter: Add STM32 Timer quadrature encoder William Breathitt Gray
2018-03-24 17:30 ` Jonathan Cameron
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