Re: [PATCH V5 1/5] dt-bindings: rtc: Remove the LS2X from the trivial RTCs

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On Fri, Jun 02, 2023 at 05:50:20PM +0800, Binbin Zhou wrote:
> Move Loongson RTC bindings from trivial-rtc.yaml into loongson,rtc.yaml.

$subject: dt-bindings: rtc: Remove the LS2X from the trivial RTCs

If you end up resubmitting, could you use a subject like that better
describes the changes?
Say "dt-bindings: rtc: Split loongson,ls2x-rtc into SoC-based compatibles"?
Otherwise,
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>

Thanks,
Conor.
> 
> The architectures associated with this driver use the built-in DTB, so
> we can just drop the compatible(rtc-ls2x) with wildcards.
> Also, soc-based compatible is more accurate for hardware differences
> between chips.
> 
> Signed-off-by: Binbin Zhou <zhoubinbin@xxxxxxxxxxx>
> ---
>  .../devicetree/bindings/rtc/loongson,rtc.yaml | 57 +++++++++++++++++++
>  .../devicetree/bindings/rtc/trivial-rtc.yaml  |  2 -
>  2 files changed, 57 insertions(+), 2 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/rtc/loongson,rtc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/loongson,rtc.yaml b/Documentation/devicetree/bindings/rtc/loongson,rtc.yaml
> new file mode 100644
> index 000000000000..f89c1f660aee
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/loongson,rtc.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/loongson,rtc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Loongson Real-Time Clock
> +
> +description:
> +  The Loongson family chips use an on-chip counter 0 (Time Of Year
> +  counter) as the RTC.
> +
> +maintainers:
> +  - Binbin Zhou <zhoubinbin@xxxxxxxxxxx>
> +
> +allOf:
> +  - $ref: rtc.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - enum:
> +          - loongson,ls1b-rtc
> +          - loongson,ls1c-rtc
> +          - loongson,ls7a-rtc
> +          - loongson,ls2k1000-rtc
> +      - items:
> +          - enum:
> +              - loongson,ls2k2000-rtc
> +              - loongson,ls2k0500-rtc
> +          - const: loongson,ls7a-rtc
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +
> +    rtc@1fe27800 {
> +        compatible = "loongson,ls2k1000-rtc";
> +        reg = <0x1fe27800 0x100>;
> +
> +        interrupt-parent = <&liointc1>;
> +        interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
> +    };
> +
> +...
> diff --git a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
> index a3603e638c37..9af77f21bb7f 100644
> --- a/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
> +++ b/Documentation/devicetree/bindings/rtc/trivial-rtc.yaml
> @@ -47,8 +47,6 @@ properties:
>        - isil,isl1218
>        # Intersil ISL12022 Real-time Clock
>        - isil,isl12022
> -      # Loongson-2K Socs/LS7A bridge Real-time Clock
> -      - loongson,ls2x-rtc
>        # Real Time Clock Module with I2C-Bus
>        - microcrystal,rv3029
>        # Real Time Clock
> -- 
> 2.39.1
> 

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