linux-kernel - Re: [PATCH v3 2/3] dt-bindings: i3c: Document Synopsys DesignWare I3C master bindings

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Date:   Mon, 12 Nov 2018 10:17:03 +0100
From:   Boris Brezillon <boris.brezillon@...tlin.com>
To:     Vitor soares <vitor.soares@...opsys.com>
Cc:     wsa@...-dreams.de, linux-i2c@...r.kernel.org, corbet@....net,
        linux-doc@...r.kernel.org, gregkh@...uxfoundation.org,
        arnd@...db.de, psroka@...ence.com, agolec@...ence.com,
        adouglas@...ence.com, bfolta@...ence.com, dkos@...ence.com,
        alicja@...ence.com, cwronka@...ence.com, sureshp@...ence.com,
        rafalc@...ence.com, thomas.petazzoni@...tlin.com, nm@...com,
        robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
        ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        geert@...ux-m68k.org, linus.walleij@...aro.org,
        Xiang.Lin@...aptics.com, linux-gpio@...r.kernel.org,
        nsekhar@...com, pgaj@...ence.com, peda@...ntia.se,
        mshettel@...eaurora.org, swboyd@...omium.org,
        joao.pinto@...opsys.com
Subject: Re: [PATCH v3 2/3] dt-bindings: i3c: Document Synopsys DesignWare
 I3C master bindings

On Thu,  8 Nov 2018 17:14:10 +0000
Vitor soares <vitor.soares@...opsys.com> wrote:

> Document Synopsys DesignWare I3C master module
> 
> Signed-off-by: Vitor soares <soares@...opsys.com>
> ---
> Changes in v3:
> - Remove dummy characters
> 
> Changes in v2:
> - Address the changes in Documentation/devicetree/bindings/i3c/i3c.txt
> - Add controller version on compatible string
> 
>  .../devicetree/bindings/i3c/snps,dw-i3c-master.txt | 42 ++++++++++++++++++++++
>  1 file changed, 42 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
> 
> diff --git a/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt b/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
> new file mode 100644
> index 0000000..b930c09
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
> @@ -0,0 +1,42 @@
> +Bindings for Synopsys DesignWare I3C master block
> +=================================================
> +
> +Required properties:
> +--------------------
> +- compatible: shall be "snps,dw-i3c-master-1.00a"
> +- clocks: shall reference the core_clk

Are you sure this IP only requires only one clock? If you're unsure,
you'd better have a clock-names prop.

> +- interrupts: the interrupt line connected to this I3C master
> +- reg: Offset and length of I3C master registers
> +
> +Mandatory properties defined by the generic binding (see
> +Documentation/devicetree/bindings/i3c/i3c.txt for more details):
> +
> +- #address-cells: shall be set to 3
> +- #size-cells: shall be set to 0
> +
> +Optional properties defined by the generic binding (see
> +Documentation/devicetree/bindings/i3c/i3c.txt for more details):
> +
> +- i2c-scl-hz
> +- i3c-scl-hz
> +
> +I3C device connected on the bus follow the generic description (see
> +Documentation/devicetree/bindings/i3c/i3c.txt for more details).
> +
> +Example:
> +
> +	i3c-master@...0 {
> +		compatible = "snps,dw-i3c-master-1.00a";
> +		#address-cells = <3>;
> +		#size-cells = <0>;
> +		reg = <0x02000 0x1000>;
> +		interrupts = <0>;
> +		clocks = <&i3cclk>;
> +
> +		eeprom@57{
> +			compatible = "atmel,24c01";
> +			reg = < 0x57 0x0 0x10>;

			       ^ remove this white space.

> +			pagesize = <0x8>;
> +		};
> +	};
> +