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Message-ID: <385198cbb91c4a36ad758997916ad271@codeaurora.org>
Date:   Wed, 16 May 2018 10:33:14 -0700
From:   rishabhb@...eaurora.org
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm@...ts.infradead.org, tsoni@...eaurora.org,
        ckadabi@...eaurora.org, evgreen@...omium.org, robh@...nel.org
Subject: Re: [PATCH v6 1/2] dt-bindings: Documentation for qcom, llcc

On 2018-05-16 10:03, Stephen Boyd wrote:
> Quoting Rishabh Bhatnagar (2018-05-08 13:22:00)
>> diff --git a/Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt 
>> b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt
>> new file mode 100644
>> index 0000000..a586a17
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/arm/msm/qcom,llcc.txt
>> @@ -0,0 +1,32 @@
>> +== Introduction==
>> +
>> +LLCC (Last Level Cache Controller) provides last level of cache 
>> memory in SOC,
>> +that can be shared by multiple clients. Clients here are different 
>> cores in the
>> +SOC, the idea is to minimize the local caches at the clients and 
>> migrate to
>> +common pool of memory. Cache memory is divided into partitions called 
>> slices
>> +which are assigned to clients. Clients can query the slice details, 
>> activate
>> +and deactivate them.
>> +
>> +Properties:
>> +- compatible:
>> +       Usage: required
>> +       Value type: <string>
>> +       Definition: must be "qcom,sdm845-llcc"
>> +
>> +- reg:
>> +       Usage: required
>> +       Value Type: <prop-encoded-array>
>> +       Definition: Start address and the range of the LLCC registers.
> 
> Start address and size?
> 
Yes i'll change it to Start address and size of the register region.

>> +
>> +- max-slices:
>> +       usage: required
>> +       Value Type: <u32>
>> +       Definition: Number of cache slices supported by hardware
>> +
>> +Example:
>> +
>> +       llcc: qcom,llcc@...0000 {
> 
> cache-controller@...0000 ?
> 
We have tried to use consistent naming convention as in llcc_* 
everywhere.
Using cache-controller will mix and match the naming convention. Also in
the documentation it is explained what llcc is and its full form.

>> +               compatible = "qcom,sdm845-llcc";
>> +               reg = <0x1100000 0x250000>;
>> +               max-slices = <32>;
>> +       };
>> --

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