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Date:   Thu, 14 Jun 2018 10:25:37 -0700
From:   Jae Hyun Yoo <jae.hyun.yoo@...ux.intel.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, openbmc@...ts.ozlabs.org,
        Andrew Jeffery <andrew@...id.au>,
        James Feist <james.feist@...ux.intel.com>,
        Jason M Biils <jason.m.bills@...ux.intel.com>,
        Joel Stanley <joel@....id.au>,
        Vernon Mauery <vernon.mauery@...ux.intel.com>
Subject: Re: [PATCH linux-next v5 07/13] dt-bindings: mfd: Add a document for
 PECI client mfd

Thanks for the review. Please check my answers inline.

On 6/12/2018 11:16 PM, Lee Jones wrote:
> All s/mfd/MFD/
> 

Got it. Will fix it.

>> This commit adds a dt-bindings document for PECI client multi-function
>> device.
> 
> Multi-Function Device
> 

Will fix it.

>> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@...ux.intel.com>
>> Cc: Andrew Jeffery <andrew@...id.au>
>> Cc: James Feist <james.feist@...ux.intel.com>
>> Cc: Jason M Biils <jason.m.bills@...ux.intel.com>
>> Cc: Joel Stanley <joel@....id.au>
>> Cc: Vernon Mauery <vernon.mauery@...ux.intel.com>
>> ---
>>   .../devicetree/bindings/mfd/peci-client.txt   | 23 +++++++++++++++++++
>>   1 file changed, 23 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/mfd/peci-client.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mfd/peci-client.txt b/Documentation/devicetree/bindings/mfd/peci-client.txt
>> new file mode 100644
>> index 000000000000..4eb8f6bb6ca4
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mfd/peci-client.txt
>> @@ -0,0 +1,23 @@
>> +* Intel PECI client bindings
> 
> Now it the time to expand on what a "PECI client" is.
> 

Okay, I'll add more description about the "PECI client".

>> +Required properties:
>> +- compatible : Should be "intel,peci-client", "simple-mfd".
>> +- reg        : Should contain address of a client CPU. Address range of CPU
>> +	       clients is starting from 0x30 based on PECI specification.
> 
> s/is starting/start/
> 

Will change it to "Address range of CPU clients starts from ...".

>> +Example:
>> +	peci-bus@0 {
> 
> 0?
> 

Because the actual reg value of the peci bus is reg = <0x0 0x60> but
anyway it's an example.

>> +		#address-cells = <1>;
>> +		#size-cells = <0>;
> 
> No 'reg' property?
> 

This is the actual peci bus node which is a parent of this MFD node:
	peci0: peci-bus@0 {
		compatible = "aspeed,ast2500-peci";
		reg = <0x0 0x60>;
		#address-cells = <1>;
		#size-cells = <0>;
		interrupts = <15>;
		clocks = <&syscon ASPEED_CLK_GATE_REFCLK>;
		resets = <&syscon ASPEED_RESET_PECI>;
		clock-frequency = <24000000>;
		msg-timing = <1>;
		addr-timing = <1>;
		rd-sampling-point = <8>;
		cmd-timeout-ms = <1000>;
	};

>> +		< more properties >
> 
> Remove this.
> 

I dropped all other properties into < more properties > because I want
to show the #address-cells and #size-cells to state its sub-nodes
should have a single unique reg value. Should I remove this line or the
whole parent node?

>> +		peci-client@30 {
>> +			compatible = "intel,peci-client", "simple-mfd";
>> +			reg = <0x30>;
>> +		};
>> +
>> +		peci-client@31 {
>> +			compatible = "intel,peci-client", "simple-mfd";
>> +			reg = <0x31>;
>> +		};
>> +	};
> 

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