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Date:   Wed, 8 Aug 2018 17:59:24 +0100
From:   vitor <Vitor.Soares@...opsys.com>
To:     Rob Herring <robh@...nel.org>,
        Vitor soares <Vitor.Soares@...opsys.com>
CC:     <boris.brezillon@...tlin.com>, <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>,
        <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>,
        <Joao.Pinto@...opsys.com>
Subject: Re: [PATCH 2/3] dt-bindings: i3c: Document Synopsys DesignWare I3C
 master bindings

Hi Rob,


On 25-07-2018 20:57, Rob Herring wrote:
> On Fri, Jul 20, 2018 at 09:57:51PM +0100, Vitor soares wrote:
>> This patch document Synopsys DesignWare I3C master DT bindings.
>>
>> Signed-off-by: Vitor soares <soares@...opsys.com>
>> ---
>>   .../devicetree/bindings/i3c/snps,dw-i3c-master.txt | 43 ++++++++++++++++++++++
>>   1 file changed, 43 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..7f5c8b0
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.txt
>> @@ -0,0 +1,43 @@
>> +Bindings for Synopsys DesignWare I3C master block
>> +=================================================
>> +
>> +Required properties:
>> +--------------------
>> +- compatible: shall be "snps,dw-i3c-master"
> Only one version and no version number?
>
> ... and an SoC specific compatible string.

I'm not understanding. Can you explain?

>
>> +- clocks: shall reference the core_clk
>> +- clock-names: shall contain "core_clk"
> "_clk" is redundant and *-names with a single entry is kind of
> pointless.

I will fix it for next version.

>
>> +- 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@...000 {
> Drop the '0x'
>
>> +		compatible = "snps,dw-i3c-master";
>> +		#address-cells = <3>;
>> +		#size-cells = <0>;
>> +		reg = <0x02000 0x1000>;
>> +		interrupts = <0>;
>> +		clocks = <&i3cclk>;
>> +		clock-names = "core_clk";
>> +
>> +		eeprom@...7{
>> +			compatible = "atmel,24c01";
>> +			reg = < 0x57 0x80000010 0x0>;
>> +			pagesize = <0x8>;
>> +		};
>> +	};
>> -- 
>> 2.7.4
>>
>>

Thanks for your feedback.

Best regards,
Vitor Soares

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