linux-kernel - RE: [PATCH 2/5] dt-bindings: power: reset: Add RZ/V2M PWC Power OFF bindings

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Message-ID: <TYWPR01MB8775F68FD5F270350045EDD3C2EA9@TYWPR01MB8775.jpnprd01.prod.outlook.com>
Date:   Tue, 20 Dec 2022 21:22:12 +0000
From:   Fabrizio Castro <fabrizio.castro.jz@...esas.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Sebastian Reichel <sre@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>
CC:     Lee Jones <lee@...nel.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Biju Das <biju.das@...renesas.com>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Jacopo Mondi <jacopo@...ndi.org>
Subject: RE: [PATCH 2/5] dt-bindings: power: reset: Add RZ/V2M PWC Power OFF
 bindings

Hi Krzysztof,

Thanks for your feedback.

> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Sent: 15 December 2022 09:50
> To: Fabrizio Castro <fabrizio.castro.jz@...esas.com>;
> Subject: Re: [PATCH 2/5] dt-bindings: power: reset: Add RZ/V2M PWC Power
> OFF bindings
> 
> On 13/12/2022 23:43, Fabrizio Castro wrote:
> > Add dt-bindings document for the RZ/V2M PWC Power OFF driver.
> 
> Drop driver.
> 
> Subject: drop second, redundant "bindings".

Thanks

> 
> >
> > Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@...esas.com>
> > ---
> >  .../reset/renesas,rzv2m-pwc-poweroff.yaml     | 48 +++++++++++++++++++
> >  1 file changed, 48 insertions(+)
> >  create mode 100644
> Documentation/devicetree/bindings/power/reset/renesas,rzv2m-pwc-
> poweroff.yaml
> >
> > diff --git
> a/Documentation/devicetree/bindings/power/reset/renesas,rzv2m-pwc-
> poweroff.yaml
> b/Documentation/devicetree/bindings/power/reset/renesas,rzv2m-pwc-
> poweroff.yaml
> > new file mode 100644
> > index 000000000000..12456e3e93e6
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/power/reset/renesas,rzv2m-pwc-
> poweroff.yaml
> > @@ -0,0 +1,48 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +
> > +title: Renesas RZ/V2M External Power Sequence Controller (PWC) Power
> OFF
> > +
> > +description: |+
> > +  The PWC IP found in the RZ/V2M family of chips comes with the below
> > +  capabilities
> > +    - external power supply on/off sequence generation
> > +    - on/off signal generation for the LPDDR4 core power supply (LPVDD)
> > +    - key input signals processing
> > +    - general-purpose output pins
> > +  This node uses syscon to map the registers relevant to Power OFF (the
> > +  register map is retrieved from the parent dt-node), and the node
> should be
> > +  represented as a sub node of a "syscon", "simple-mfd" node.
> > +
> > +maintainers:
> > +  - Fabrizio Castro <fabrizio.castro.jz@...esas.com>
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - enum:
> > +          - renesas,r9a09g011-pwc-poweroff # RZ/V2M
> > +          - renesas,r9a09g055-pwc-poweroff # RZ/V2MA
> > +      - const: renesas,rzv2m-pwc-poweroff
> > +
> > +  regmap:
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +    description: |
> > +      Phandle to the register map node.
> 
> This also has to go.

It'll go

> 
> > +
> > +required:
> > +  - compatible
> > +  - regmap
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    poweroff {
> > +            compatible = "renesas,r9a09g011-pwc-poweroff",
> 
> Use 4 spaces for example indentation.

Doh, I'll be more careful next time.

Thanks,
Fab

> 
> > +                         "renesas,rzv2m-pwc-poweroff";
> > +            regmap = <&regmapnode>;
> > +    };
> 
> Best regards,
> Krzysztof