From: William Breathitt Gray <vilhelm.gray@gmail.com>
To: gregkh@linuxfoundation.org
Cc: jic23@kernel.org, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-iio@vger.kernel.org, fabrice.gasnier@st.com,
benjamin.gaignard@st.com, robh+dt@kernel.org, knaack.h@gmx.de,
lars@metafoo.de, pmeerw@pmeerw.net, mark.rutland@arm.com,
William Breathitt Gray <vilhelm.gray@gmail.com>
Subject: [PATCH v7 07/10] dt-bindings: counter: Document stm32 quadrature encoder
Date: Thu, 21 Jun 2018 17:08:34 -0400 [thread overview]
Message-ID: <c1cc3d567d0a5799c3afe6e24ca9ec3b1547224e.1529607879.git.vilhelm.gray@gmail.com> (raw)
In-Reply-To: <cover.1529607879.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
quadratic encoder part of the hardware.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
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 | 31 +++++++++++++++++++
.../devicetree/bindings/mfd/stm32-timers.txt | 7 +++++
2 files changed, 38 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..c52fcdd4bf6c
--- /dev/null
+++ b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt
@@ -0,0 +1,31 @@
+STMicroelectronics STM32 Timer quadrature encoder
+
+STM32 Timer provides quadrature encoder 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 CH1/CH2 pins in mode of operation for STM32
+ Timer input on external pin.
+
+Example:
+ timers@40010000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "st,stm32-timers";
+ reg = <0x40010000 0x400>;
+ clocks = <&rcc 0 160>;
+ clock-names = "int";
+
+ 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>;
+ };
};
--
2.17.1
next prev parent reply other threads:[~2018-06-21 21:08 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-21 21:06 [PATCH v7 00/10] Introduce the Counter subsystem William Breathitt Gray
2018-06-21 21:07 ` [PATCH v7 01/10] counter: Introduce the Generic Counter interface William Breathitt Gray
2018-07-07 15:16 ` Greg KH
2018-07-09 17:40 ` William Breathitt Gray
2018-07-09 18:54 ` Greg KH
2018-07-09 18:56 ` William Breathitt Gray
2018-07-18 3:49 ` Andrew Morton
2018-07-21 16:26 ` William Breathitt Gray
2018-07-22 5:41 ` Andrew Morton
2018-06-21 21:07 ` [PATCH v7 02/10] counter: Documentation: Add Generic Counter sysfs documentation William Breathitt Gray
2018-07-02 19:11 ` [v7, " David Lechner
2018-07-03 14:04 ` William Breathitt Gray
2018-06-21 21:07 ` [PATCH v7 03/10] docs: Add Generic Counter interface documentation William Breathitt Gray
2018-06-22 16:51 ` Jonathan Cameron
2018-07-02 19:37 ` [v7,03/10] " David Lechner
2018-07-03 14:16 ` William Breathitt Gray
2018-07-04 17:23 ` Linus Walleij
2018-07-06 17:15 ` Jonathan Cameron
2018-07-06 18:25 ` David Lechner
2018-07-02 19:42 ` David Lechner
2018-07-03 14:21 ` William Breathitt Gray
2018-06-21 21:07 ` [PATCH v7 04/10] counter: 104-quad-8: Add Generic Counter interface support William Breathitt Gray
2018-06-22 16:57 ` Jonathan Cameron
2018-06-21 21:08 ` [PATCH v7 05/10] counter: 104-quad-8: Documentation: Add Generic Counter sysfs documentation William Breathitt Gray
2018-06-22 16:59 ` Jonathan Cameron
2018-06-21 21:08 ` [PATCH v7 06/10] counter: Add STM32 Timer quadrature encoder William Breathitt Gray
2018-06-22 17:03 ` Jonathan Cameron
2018-06-21 21:08 ` William Breathitt Gray [this message]
2018-07-02 19:56 ` [v7,07/10] dt-bindings: counter: Document stm32 " David Lechner
2018-07-05 21:13 ` [PATCH v7 07/10] " Rob Herring
2018-06-21 21:08 ` [PATCH v7 08/10] counter: stm32-lptimer: add counter device William Breathitt Gray
2018-06-22 17:06 ` Jonathan Cameron
2018-06-21 21:08 ` [PATCH v7 09/10] dt-bindings: counter: Adjust dt-bindings for STM32 lptimer move William Breathitt Gray
2018-07-05 21:13 ` Rob Herring
2018-06-21 21:09 ` [PATCH v7 10/10] iio: counter: Add deprecation markings for IIO Counter attributes William Breathitt Gray
2018-06-22 17:10 ` [PATCH v7 00/10] Introduce the Counter subsystem Jonathan Cameron
2018-07-02 18:13 ` David Lechner
2018-07-03 2:48 ` William Breathitt Gray
2018-07-06 17:21 ` Jonathan Cameron
2018-07-06 18:22 ` David Lechner
2018-07-06 19:20 ` William Breathitt Gray
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