[Linux-stm32] [PATCH 1/3] dt-bindings: timer: Add STM32 Low Power Timer bindings

[Rob Herring]

On Thu, Jan 09, 2020 at 03:53:31PM +0100, Benjamin Gaignard wrote:
> Document STM32 Low Power bindings.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard at st.com>
> ---
>  .../bindings/timer/st,stm32-lp-timer.yaml          | 44 ++++++++++++++++++++++
>  1 file changed, 44 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/timer/st,stm32-lp-timer.yaml
> 
> diff --git a/Documentation/devicetree/bindings/timer/st,stm32-lp-timer.yaml b/Documentation/devicetree/bindings/timer/st,stm32-lp-timer.yaml
> new file mode 100644
> index 000000000000..ca040b96dc47
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/st,stm32-lp-timer.yaml

Use the compatible for the filename.

> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/timer/st,stm32-lp-timer.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: STMicroelectronics STM32 Low Power 16 bits timers bindings
> +
> +maintainers:
> +  - Benjamin Gaignard <benjamin.gaignard at st.com>
> +
> +properties:
> +  compatible:
> +    const: st,stm32-lptimer-clkevent

'clkevent' is a h/w name? Seems redundant and abusing compatible to 
bind to a specific Linux driver. 

> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/stm32mp1-clks.h>
> +    clkevent: clkevent at 40009000 {

timer at ...

> +      compatible = "st,stm32-lptimer-clkevent";
> +      reg = <0x40009000 0x400>;
> +      clocks = <&rcc LPTIM1_K>;
> +      interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
> +    };
> +
> +...
> -- 
> 2.15.0
>