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authorSascha Hauer <s.hauer@pengutronix.de>2019-06-05 00:06:30 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2019-06-11 09:11:11 +0200
commit796af3473b8222bcd89aa63e9886c355a6baf95d (patch)
treead357b2756bda409b46747faaaf57a0ffd003c9c /dts/Bindings/counter
parent649b9ebcf53d697277bcdb01334dbcd563a33aa8 (diff)
downloadbarebox-796af3473b8222bcd89aa63e9886c355a6baf95d.tar.gz
dts: update to v5.2-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/counter')
-rw-r--r--dts/Bindings/counter/ftm-quaddec.txt18
-rw-r--r--dts/Bindings/counter/stm32-lptimer-cnt.txt29
-rw-r--r--dts/Bindings/counter/stm32-timer-cnt.txt31
3 files changed, 78 insertions, 0 deletions
diff --git a/dts/Bindings/counter/ftm-quaddec.txt b/dts/Bindings/counter/ftm-quaddec.txt
new file mode 100644
index 0000000..4d18cd7
--- /dev/null
+++ b/dts/Bindings/counter/ftm-quaddec.txt
@@ -0,0 +1,18 @@
+FlexTimer Quadrature decoder counter
+
+This driver exposes a simple counter for the quadrature decoder mode.
+
+Required properties:
+- compatible: Must be "fsl,ftm-quaddec".
+- reg: Must be set to the memory region of the flextimer.
+
+Optional property:
+- big-endian: Access the device registers in big-endian mode.
+
+Example:
+ counter0: counter@29d0000 {
+ compatible = "fsl,ftm-quaddec";
+ reg = <0x0 0x29d0000 0x0 0x10000>;
+ big-endian;
+ status = "disabled";
+ };
diff --git a/dts/Bindings/counter/stm32-lptimer-cnt.txt b/dts/Bindings/counter/stm32-lptimer-cnt.txt
new file mode 100644
index 0000000..e90bc47
--- /dev/null
+++ b/dts/Bindings/counter/stm32-lptimer-cnt.txt
@@ -0,0 +1,29 @@
+STMicroelectronics STM32 Low-Power Timer quadrature encoder and counter
+
+STM32 Low-Power Timer provides several counter modes. It can be used as:
+- quadrature encoder to detect angular position and direction of rotary
+ elements, from IN1 and IN2 input signals.
+- simple counter from IN1 input signal.
+
+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-counter".
+- pinctrl-names: Set to "default". An additional "sleep" state can be
+ defined to set pins in sleep state.
+- pinctrl-n: 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:
+ timer@40002400 {
+ compatible = "st,stm32-lptimer";
+ ...
+ counter {
+ compatible = "st,stm32-lptimer-counter";
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&lptim1_in_pins>;
+ pinctrl-1 = <&lptim1_sleep_in_pins>;
+ };
+ };
diff --git a/dts/Bindings/counter/stm32-timer-cnt.txt b/dts/Bindings/counter/stm32-timer-cnt.txt
new file mode 100644
index 0000000..c52fcdd
--- /dev/null
+++ b/dts/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>;
+ };
+ };