linux-kernel - Re: [PATCH v5 1/1] dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC

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Date: Mon, 8 Jan 2024 09:04:41 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Jingbao Qiu <qiujingbao.dlmu@...il.com>, a.zummo@...ertech.it,
 alexandre.belloni@...tlin.com, robh+dt@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 paul.walmsley@...ive.com, palmer@...belt.com, aou@...s.berkeley.edu
Cc: linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 1/1] dt-bindings: rtc: sophgo: add RTC support for
 Sophgo CV1800 series SoC

On 08/01/2024 08:22, Jingbao Qiu wrote:
> Add RTC devicetree binding for Sophgo CV1800 SoC.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Signed-off-by: Jingbao Qiu <qiujingbao.dlmu@...il.com>
> ---
>  .../bindings/rtc/sophgo,cv1800-rtc.yaml       | 56 +++++++++++++++++++
>  1 file changed, 56 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml b/Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
> new file mode 100644
> index 000000000000..01a926cb5c81
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml
> @@ -0,0 +1,56 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/sophgo,cv1800-rtc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Real Time Clock of the Sophgo CV1800 SoC
> +
> +allOf:
> +  - $ref: rtc.yaml#

Why the allOf has moved?

> +
> +maintainers:
> +  - Jingbao Qiu <qiujingbao.dlmu@...il.com>
> +
> +description:
> +  Real Time Clock (RTC) is an independently powered module
> +  within the chip, which includes a 32KHz oscillator and a
> +  Power On Reset/POR submodule. It can be used for time display
> +  and timed alarm generation. In addition, the hardware state
> +  machine provides triggering and timing control for chip
> +  power on, off, and reset.
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: sophgo,cv1800-rtc
> +      - const: syscon

Why is this syscon? Description does not explain this.

> +
> +  reg:
> +    maxItems: 1


Best regards,
Krzysztof