[v7,1/2] dt-bindings: watchdog: Add watchdog yaml file for Sunplus SP7021

This adds the documentation for the devicetree bindings of the Sunplus
SP7021 watchdog driver, found from SP7021 SoCs and newer.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Xiantao Hu <xt.hu@cqplus1.com>
---
 .../bindings/watchdog/sunplus,sp7021-wdt.yaml | 47 +++++++++++++++++++
 MAINTAINERS                                   |  6 +++
 2 files changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml

On Fri, Mar 04, 2022 at 04:12:08PM +0800, Xiantao Hu wrote:
> This adds the documentation for the devicetree bindings of the Sunplus
> SP7021 watchdog driver, found from SP7021 SoCs and newer.
> 
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Xiantao Hu <xt.hu@cqplus1.com>
> ---
>  .../bindings/watchdog/sunplus,sp7021-wdt.yaml | 47 +++++++++++++++++++
>  MAINTAINERS                                   |  6 +++
>  2 files changed, 53 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml

Please use scripts/get_maintainer.pl on recent kernel (newest mainline or
recent linux-next) to get the list of people to CC.

> 
> diff --git a/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml b/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
> new file mode 100644
> index 000000000..9a9bfe150
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) Sunplus Co., Ltd. 2021
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/sunplus,sp7021-wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Sunplus SoCs Watchdog Device Tree Bindings

s/Device Tree Bindings//

> +
> +maintainers:
> +  - XianTao Hu <xt.hu@cqplus1.com>
> +
> +allOf:
> +  - $ref: watchdog.yaml#
> +
> +properties:
> +  compatible:
> +    const: sunplus,sp7021-wdt
> +
> +  reg:
> +    items:
> +      - description: watchdog registers regions
> +      - description: miscellaneous control registers regions
> +
> +  clocks:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - resets
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    watchdog: watchdog@9c000630 {
> +        compatible = "sunplus,sp7021-wdt";
> +        reg = <0x9c000630 0x08>, <0x9C000274 0x04>;

lowercase hex (Second reg)

Can be fixed while applying, so in such case:
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>

Best regards,
Krzysztof

Dear Krzysztof
	Thanks for your review.

> -----Original Message-----
> From: Krzysztof Kozlowski [mailto:krzk@kernel.org]
> Sent: Monday, March 21, 2022 7:10 PM
> To: xt.hu[胡先韬] <xt.hu@cqplus1.com>
> Cc: wim@linux-watchdog.org; p.zabel@pengutronix.de; linux-kernel@vger.kernel.org;
> linux-watchdog@vger.kernel.org; linux@roeck-us.net; robh+dt@kernel.org; devicetree@vger.kernel.org;
> Wells Lu 呂芳騰 <wells.lu@sunplus.com>; qinjian[覃健] <qinjian@cqplus1.com>; Rob Herring
> <robh@kernel.org>
> Subject: Re: [PATCH v7 1/2] dt-bindings: watchdog: Add watchdog yaml file for Sunplus SP7021
> 
> On Fri, Mar 04, 2022 at 04:12:08PM +0800, Xiantao Hu wrote:
> > This adds the documentation for the devicetree bindings of the Sunplus
> > SP7021 watchdog driver, found from SP7021 SoCs and newer.
> >
> > Reviewed-by: Rob Herring <robh@kernel.org>
> > Signed-off-by: Xiantao Hu <xt.hu@cqplus1.com>
> > ---
> >  .../bindings/watchdog/sunplus,sp7021-wdt.yaml | 47 +++++++++++++++++++
> >  MAINTAINERS                                   |  6 +++
> >  2 files changed, 53 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
> 
> Please use scripts/get_maintainer.pl on recent kernel (newest mainline or
> recent linux-next) to get the list of people to CC.
> 

I will do it in the next patch.

> >
> > diff --git a/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
> b/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
> > new file mode 100644
> > index 000000000..9a9bfe150
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/watchdog/sunplus,sp7021-wdt.yaml
> > @@ -0,0 +1,47 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +# Copyright (C) Sunplus Co., Ltd. 2021
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/watchdog/sunplus,sp7021-wdt.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Sunplus SoCs Watchdog Device Tree Bindings
> 
> s/Device Tree Bindings//
> 

I will drop the string "Device Tree Bindings".

> > +
> > +maintainers:
> > +  - XianTao Hu <xt.hu@cqplus1.com>
> > +
> > +allOf:
> > +  - $ref: watchdog.yaml#
> > +
> > +properties:
> > +  compatible:
> > +    const: sunplus,sp7021-wdt
> > +
> > +  reg:
> > +    items:
> > +      - description: watchdog registers regions
> > +      - description: miscellaneous control registers regions
> > +
> > +  clocks:
> > +    maxItems: 1
> > +
> > +  resets:
> > +    maxItems: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - clocks
> > +  - resets
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    watchdog: watchdog@9c000630 {
> > +        compatible = "sunplus,sp7021-wdt";
> > +        reg = <0x9c000630 0x08>, <0x9C000274 0x04>;
> 
> lowercase hex (Second reg)
> 

I just realized the driver don't use second reg anymore. I will drop it and 
modify the description of reg.

> Can be fixed while applying, so in such case:
> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
> 

I got it.

Best regards,
Xian-tao
> Best regards,
> Krzysztof