On 24/11/16 15:14, Benjamin Gaignard wrote:
> 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 <benjamin.gaignard@xxxxxx>
> ---
> .../bindings/iio/timer/stm32-iio-timer.txt | 41 ++++++++++++++++++++++
> 1 file changed, 41 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-iio-timer.txt
>
> diff --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@40010000 {
> + compatible = "st,stm32-gptimer";
> + reg = <0x40010000 0x400>;
> + clocks = <&rcc 0 160>;
> + clock-names = "clk_int";
> +
> + pwm1@0 {
> + compatible = "st,stm32-pwm";
> + st,pwm-num-chan = <4>;
> + st,breakinput;
> + st,complementary;
> + };
> +
> + iiotimer1@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;
> + };
> + };
>
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