linux-kernel - Re: [V3, 1/4] Documentation: dt-bindings: phy: Document the Synopsys MIPI DPHY Rx bindings

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Date:   Wed, 24 Oct 2018 12:36:11 -0500
From:   Rob Herring <robh@...nel.org>
To:     Luis Oliveira <luis.oliveira@...opsys.com>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        joao.pinto@...opsys.com, festevam@...il.com,
        Mark Rutland <mark.rutland@....com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        Arnd Bergmann <arnd@...db.de>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Neil Armstrong <narmstrong@...libre.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Keiichi Watanabe <keiichiw@...omium.org>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Todor Tomov <todor.tomov@...aro.org>,
        devicetree@...r.kernel.org
Subject: Re: [V3, 1/4] Documentation: dt-bindings: phy: Document the Synopsys
 MIPI DPHY Rx bindings

On Fri, Oct 19, 2018 at 02:52:23PM +0200, Luis Oliveira wrote:
> Add device-tree bindings documentation for SNPS DesignWare MIPI D-PHY in
> RX mode.
> 
> Signed-off-by: Luis Oliveira <lolivei@...opsys.com>
> ---
> Changelog
> v2-V3
> - removed gpios reference - it was for a separated driver
> - changed address to show complete address
> 
>  .../devicetree/bindings/phy/snps,dphy-rx.txt       | 28 ++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/snps,dphy-rx.txt
> 
> diff --git a/Documentation/devicetree/bindings/phy/snps,dphy-rx.txt b/Documentation/devicetree/bindings/phy/snps,dphy-rx.txt
> new file mode 100644
> index 0000000..03d17ab
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/snps,dphy-rx.txt
> @@ -0,0 +1,28 @@
> +Synopsys DesignWare MIPI Rx D-PHY block details
> +
> +Description
> +-----------
> +
> +The Synopsys MIPI D-PHY controller supports MIPI-DPHY in receiver mode.
> +Please refer to phy-bindings.txt for more information.
> +
> +Required properties:
> +- compatible		: Shall be "snps,dphy-rx".
> +- #phy-cells		: Must be 1.
> +- snps,dphy-frequency	: Output frequency of the D-PHY.

Needs a unit suffix (-hz).

> +- snps,dphy-te-len	: Size of the communication interface (8 bits->8 or 12bits->12).
> +- reg			: Physical base address and size of the device memory mapped
> +		 	  registers;

How many, what are they, and what order? Looks like 3 below.

Also, a tab after spaces error.

> +
> +Example:
> +
> +	mipi_dphy_rx1: dphy@...003040 {
> +		compatible = "snps,dphy-rx";
> +		#phy-cells = <1>;
> +		snps,dphy-frequency = <300000>;
> +		snps,dphy-te-len = <12>;
> +		reg = < 0xd0003040 0x20
> +			0xd0008000 0x100
> +			0xd0009000 0x100>;
> +	};
> +
> --
> 2.7.4
>