linux-kernel - Re: [PATCH 2/3] dt-bindings: serial: document LiteUART bindings

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Message-ID: <CAL_JsqLXJNvWOOajS4JVVek=h+v_Fxrx58ogQ0Cz+5n5Sh0+=g@mail.gmail.com>
Date:   Mon, 30 Sep 2019 16:32:27 -0500
From:   Rob Herring <robh+dt@...nel.org>
To:     Mateusz Holenko <mholenko@...micro.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
        devicetree@...r.kernel.org, Karol Gugala <kgugala@...micro.com>,
        Jiri Slaby <jslaby@...e.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Sam Ravnborg <sam@...nborg.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Icenowy Zheng <icenowy@...c.io>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        "Paul E. McKenney" <paulmck@...ux.ibm.com>
Subject: Re: [PATCH 2/3] dt-bindings: serial: document LiteUART bindings

On Mon, Sep 30, 2019 at 8:04 AM Mateusz Holenko <mholenko@...micro.com> wrote:
>
> From: Filip Kokosinski <fkokosinski@...ernships.antmicro.com>
>
> Add documentation for LiteUART devicetree bindings.
>
> Signed-off-by: Filip Kokosinski <fkokosinski@...ernships.antmicro.com>
> Signed-off-by: Mateusz Holenko <mholenko@...micro.com>
> ---
>  .../devicetree/bindings/serial/litex,liteuart.txt    | 12 ++++++++++++
>  MAINTAINERS                                          |  6 ++++++
>  2 files changed, 18 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/serial/litex,liteuart.txt

Please make this a schema. See
Documentation/devicetree/writing-schema.rst (or .md before 5.4).

>
> diff --git a/Documentation/devicetree/bindings/serial/litex,liteuart.txt b/Documentation/devicetree/bindings/serial/litex,liteuart.txt
> new file mode 100644
> index 000000000..13c71a0c9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/serial/litex,liteuart.txt
> @@ -0,0 +1,12 @@
> +LiteUART serial controller
> +
> +Required properties:
> +- compatible: should be "litex,liteuart"

Only 1 version?

> +- reg: base address and length of the register set for this device

Is there really no interrupt line? That should be added if there's h/w
support even if the driver doesn't yet support it.

> +
> +Example:
> +
> +uart0: serial@...01000 {

Wrong unit address. Should be "@e0001800".


> +       compatible = "litex,liteuart";
> +       reg = <0xe0001800 0x100>;
> +};
> diff --git a/MAINTAINERS b/MAINTAINERS
> index b2326dece..65a6cf296 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9462,6 +9462,12 @@ F:       Documentation/misc-devices/lis3lv02d.rst
>  F:     drivers/misc/lis3lv02d/
>  F:     drivers/platform/x86/hp_accel.c
>
> +LITEX PLATFORM
> +M:     Karol Gugala <kgugala@...micro.com>
> +M:     Mateusz Holenko <mholenko@...micro.com>
> +S:     Maintained
> +F:     Documentation/devicetree/bindings/serial/litex,liteuart.txt
> +
>  LIVE PATCHING
>  M:     Josh Poimboeuf <jpoimboe@...hat.com>
>  M:     Jiri Kosina <jikos@...nel.org>
> --
> 2.23.0
>