[PATCH v2 5/7] IIO: add bindings for stm32 IIO timer driver
From: jic23@kernel.org (Jonathan Cameron)
Date: 2016-11-27 14:25:56
Also in:
linux-devicetree, linux-iio, linux-pwm, lkml
On 24/11/16 15:14, Benjamin Gaignard wrote:
quoted hunk ↗ jump to hunk
Define bindings for stm32 IIO timer 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 <redacted> --- .../bindings/iio/timer/stm32-iio-timer.txt | 41 ++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-iio-timer.txtdiff --git a/Documentation/devicetree/bindings/iio/timer/stm32-iio-timer.txt b/Documentation/devicetree/bindings/iio/timer/stm32-iio-timer.txt new file mode 100644 index 0000000..840b417 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/timer/stm32-iio-timer.txt@@ -0,0 +1,41 @@ +timer IIO trigger bindings for STM32 + +Must be a sub-node of STM32 general purpose timer driver
Add a cross reference...
+ +Required parameters: +- compatible: must be "st,stm32-iio-timer"
st,stm32-adc-timer or something like that.
+- interrupts: Interrupt for this device + See ../interrupt-controller/st,stm32-exti.txt + +Optional parameters: +- st,input-triggers-names: List of the possible input triggers for + the device +- st,output-triggers-names: List of the possible output triggers for + the device
What are input / output triggers?
+
+Possible triggers are defined in include/dt-bindings/iio/timer/st,stm32-iio-timer.h
+
+Example:
+ gptimer1: gptimer1 at 40010000 {
+ compatible = "st,stm32-gptimer";
+ reg = <0x40010000 0x400>;
+ clocks = <&rcc 0 160>;
+ clock-names = "clk_int";
+
+ pwm1 at 0 {
+ compatible = "st,stm32-pwm";
+ st,pwm-num-chan = <4>;
+ st,breakinput;
+ st,complementary;
+ };
+
+ iiotimer1 at 0 {
+ compatible = "st,stm32-iio-timer";
+ interrupts = <27>;
+ st,input-triggers-names = TIM5_TRGO,
+ TIM2_TRGO,
+ TIM4_TRGO,
+ TIM3_TRGO;
+ st,output-triggers-names = TIM1_TRGO;
+ };
+ };