linux-kernel - RE: [PATCH v7 1/2] dt-bindings: watchdog: Add watchdog yaml file for Sunplus SP7021

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Date:   Mon, 21 Mar 2022 12:20:14 +0000
From:   xt.hu[胡先韬] <xt.hu@...lus1.com>
To:     Krzysztof Kozlowski <krzk@...nel.org>
CC:     "wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>,
        "linux@...ck-us.net" <linux@...ck-us.net>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Wells Lu 呂芳騰 <wells.lu@...plus.com>,
        qinjian[覃健] <qinjian@...lus1.com>,
        Rob Herring <robh@...nel.org>
Subject: RE: [PATCH v7 1/2] dt-bindings: watchdog: Add watchdog yaml file for
 Sunplus SP7021

Dear Krzysztof
	Thanks for your review.

> -----Original Message-----
> From: Krzysztof Kozlowski [mailto:krzk@...nel.org]
> Sent: Monday, March 21, 2022 7:10 PM
> To: xt.hu[胡先韬] <xt.hu@...lus1.com>
> Cc: wim@...ux-watchdog.org; p.zabel@...gutronix.de; linux-kernel@...r.kernel.org;
> linux-watchdog@...r.kernel.org; linux@...ck-us.net; robh+dt@...nel.org; devicetree@...r.kernel.org;
> Wells Lu 呂芳騰 <wells.lu@...plus.com>; qinjian[覃健] <qinjian@...lus1.com>; Rob Herring
> <robh@...nel.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@...nel.org>
> > Signed-off-by: Xiantao Hu <xt.hu@...lus1.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@...lus1.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@...00630 {
> > +        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@...nel.org>
> 

I got it.

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