linux-kernel - Re: [PATCH 2/3] Documentation: DT: Add entry for DPAA2 console

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Message-ID: <20190103203250.GA18731@bogus>
Date:   Thu, 3 Jan 2019 14:32:50 -0600
From:   Rob Herring <robh@...nel.org>
To:     Ioana Ciornei <ioana.ciornei@....com>
Cc:     Leo Li <leoyang.li@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Roy Pledge <roy.pledge@....com>,
        Ioana Ciocoi Radulescu <ruxandra.radulescu@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/3] Documentation: DT: Add entry for DPAA2 console

On Fri, Dec 21, 2018 at 03:31:11PM +0000, Ioana Ciornei wrote:
> This patch adds a devicetree binding documentation for
> FSL's DPAA2 console.
> 
> Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
> ---
>  Documentation/devicetree/bindings/misc/dpaa2-console.txt | 11 +++++++++++
>  MAINTAINERS                                              |  1 +
>  2 files changed, 12 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/misc/dpaa2-console.txt
> 
> diff --git a/Documentation/devicetree/bindings/misc/dpaa2-console.txt b/Documentation/devicetree/bindings/misc/dpaa2-console.txt
> new file mode 100644
> index 0000000..f4e16b1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/dpaa2-console.txt
> @@ -0,0 +1,11 @@
> +DPAA2 console support
> +
> +Required properties:
> +
> +    - compatible
> +        Value type: <string>
> +        Definition: Must be "dpaa2-console".
> +    - reg
> +        Value type: <prop-encoded-array>
> +        Definition: A standard property.  Specifies the region where the MCFBA
> +                    (MC firmware base address) register can be found.

What's the relationship between MCFBA and the console? The binding 
should describe the h/w block or firmware interface not the feature you 
want to implement. Are there other functions provided by the MC 
firmware?

Rob