Re: [RFC PATCH v1 1/2] dt-bindings: pwm: rockchip: add interrupts property

From: Rob Herring
Date: Fri Sep 30 2022 - 15:55:35 EST


On Thu, 29 Sep 2022 16:04:00 +0200, Johan Jonker wrote:
> The Rockchip SoCs have 4 or more built-in PWM channels.
>
> Configurable to operate in capture mode.
> Measures the high/low polarity effective cycles of this input waveform
> Generates a single interrupt at the transition of input waveform polarity
>
> Configurable to operate in continuous mode or one-shot mode.
> One-shot operation will produce N + 1 periods of the waveform,
> where N is the repeat counter value, and generates a single interrupt at
> the end of operation.
> Continuous mode generates the waveform continuously and
> do not generates any interrupts.
>
> Older SoCs have an interrupt for each node.
> Newer models share an interrupt.
>
> Add interrupts property to the pwm-rockchip.yaml file.
> DT describes hardware. Rockchip PWM driver support for
> interrupts might not available.
>
> Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx>
> ---
> Documentation/devicetree/bindings/pwm/pwm-rockchip.yaml | 3 +++
> 1 file changed, 3 insertions(+)
>

Acked-by: Rob Herring <robh@xxxxxxxxxx>