linux-kernel - Re: [PATCH v7 02/11] dt-bindings: soc/microchip: add info about services to mpfs sysctrl

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Date:   Mon, 21 Feb 2022 07:40:17 +0000
From:   <Conor.Dooley@...rochip.com>
To:     <robh+dt@...nel.org>
CC:     <linus.walleij@...aro.org>, <Lewis.Hanly@...rochip.com>,
        <Daire.McNamara@...rochip.com>, <Ivan.Griffin@...rochip.com>,
        <atishp@...osinc.com>, <brgl@...ev.pl>, <jassisinghbrar@...il.com>,
        <thierry.reding@...il.com>, <u.kleine-koenig@...gutronix.de>,
        <lee.jones@...aro.org>, <a.zummo@...ertech.it>,
        <alexandre.belloni@...tlin.com>, <paul.walmsley@...ive.com>,
        <palmer@...belt.com>, <aou@...s.berkeley.edu>,
        <geert@...ux-m68k.org>, <krzysztof.kozlowski@...onical.com>,
        <linux-gpio@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-pwm@...r.kernel.org>,
        <linux-rtc@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH v7 02/11] dt-bindings: soc/microchip: add info about
 services to mpfs sysctrl

Hey Rob,
I removed the children and added a link to the documentation for the 
services. Could you take a look and see if this version meets your approval?
Thanks.
Conor

On 14/02/2022 13:58, conor.dooley@...rochip.com wrote:
> From: Conor Dooley <conor.dooley@...rochip.com>
> 
> The services actually provided by the system controller are not
> documented so add some words about what the system controller can
> actually do. Add a link to the oneline documentation with the specific
> details of each individual service.
> Also, drop the unneeded label from the example.
> 
> Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
> ---
>   .../soc/microchip/microchip,mpfs-sys-controller.yaml  | 11 ++++++++---
>   1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
> index f699772fedf3..b0dae51e1d42 100644
> --- a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
> +++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
> @@ -10,9 +10,14 @@ maintainers:
>     - Conor Dooley <conor.dooley@...rochip.com>
>   
>   description: |
> -  The PolarFire SoC system controller is communicated with via a mailbox.
> -  This document describes the bindings for the client portion of that mailbox.
> +  PolarFire SoC devices include a microcontroller acting as the system controller,
> +  which provides "services" to the main processor and to the FPGA fabric. These
> +  services include hardware rng, reprogramming of the FPGA and verfification of the
> +  eNVM contents etc. More information on these services can be found online, at
> +  https://onlinedocs.microchip.com/pr/GUID-1409CF11-8EF9-4C24-A94E-70979A688632-en-US-1/index.html
>   
> +  Communication with the system controller is done via a mailbox, of which the client
> +  portion is documented here.
>   
>   properties:
>     mboxes:
> @@ -29,7 +34,7 @@ additionalProperties: false
>   
>   examples:
>     - |
> -    syscontroller: syscontroller {
> +    syscontroller {
>         compatible = "microchip,mpfs-sys-controller";
>         mboxes = <&mbox 0>;
>       };