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Message-ID: <64c9ffc1-6f4b-7ddb-01ab-1ddf9ba628db@linaro.org>
Date:   Tue, 2 Aug 2022 14:13:42 +0200
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Subject: Re: [PATCH v3 4/4] dt-binding: perf: Add Amlogic DDR PMU
Content-Language: en-US
To:     Jiucheng Xu <jiucheng.xu@amlogic.com>,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org
Cc:     Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Will Deacon <will@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Kevin Hilman <khilman@baylibre.com>,
        Jerome Brunet <jbrunet@baylibre.com>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        Chris Healy <cphealy@gmail.com>
References: <20220801060049.1655177-1-jiucheng.xu@amlogic.com>
 <20220801060049.1655177-4-jiucheng.xu@amlogic.com>
 <0893fab6-a7e1-bfa7-2497-239e044cc7ed@linaro.org>
 <bafb824a-d450-b4d3-20a9-026dccaca2cd@amlogic.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <bafb824a-d450-b4d3-20a9-026dccaca2cd@amlogic.com>
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On 02/08/2022 11:25, Jiucheng Xu wrote:
> 
> On 2022/8/2 16:04, Krzysztof Kozlowski wrote:
>> [ EXTERNAL EMAIL ]
>>
>> On 01/08/2022 08:00, Jiucheng Xu wrote:
>>> Add binding documentation for the Amlogic G12 series DDR
>>> performance monitor unit.
>>>
>>> Signed-off-by: Jiucheng Xu <jiucheng.xu@amlogic.com>
>>> ---
>>> Changes v2 -> v3:
>>>    - Remove oneOf
>>>    - Add descriptions
>>>    - Fix compiling warning
>>>
>>> Changes v1 -> v2:
>>>    - Rename file, from aml_ddr_pmu.yaml to amlogic,g12_ddr_pmu.yaml
>>>    - Delete "model", "dmc_nr", "chann_nr" new properties
>>>    - Fix compiling error
>>> ---
>>>   .../bindings/perf/amlogic,g12_ddr_pmu.yaml    | 51 +++++++++++++++++++
>>>   MAINTAINERS                                   |  1 +
>>>   2 files changed, 52 insertions(+)
>>>   create mode 100644 Documentation/devicetree/bindings/perf/amlogic,g12_ddr_pmu.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/perf/amlogic,g12_ddr_pmu.yaml b/Documentation/devicetree/bindings/perf/amlogic,g12_ddr_pmu.yaml
>>> new file mode 100644
>>> index 000000000000..961656d4db6e
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/perf/amlogic,g12_ddr_pmu.yaml
>>> @@ -0,0 +1,51 @@
>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/perf/amlogic,g12-ddr-pmu.yaml#
>> You still did not test the bindings...
>>
>> You received such comment (with instructions how to do it) and still
>> decided to send untested bindings.
>>
>> That's not how submission procces should look like.
>>
>> NAK, till you send something which you actually test.
>>
>>
>> Best regards,
>> Krzysztof
> 
> Hi Krzysztof,
> 
> 
> Thanks for your time. I think I got a wrong understanding.
> 
> As the binding doc says, I run the following command to check:
> 
> # make dt_binding_check DT_SCHEMA_FILES=amlogic,g12_ddr_pmu.yaml ARCH=arm64

Ah, cool, thanks.

> 
> I saw the warning/errors in v2 patch, and thanks to your comments let 
> them gone.
> 
> But I didn't see any warning/errors keywords printing in v3 except the 
> message as below:
> 
> "$id: relative path/filename doesn't match actual path or filename".
> 
> 
> I admit I didn't understand this prompt. I found the doc in example says 
> that:
> 
> # $id is a unique identifier based on the filename. There may or may not 
> be a
> # file present at the URL.
> 
> So I thought that was not warning/errors prompt.

Unfortunately, it is and warning message. The final part of this ID is
directory and filename - these must match real file path.


> 
> Today, I find the root cause of the warning/errors prompt.
> 
> I think I have fixed it and the building log is so quiet.
> 
> 
> This is my first upstream patch, TBH I even didn't know what is binding 
> before.
> 
> In order to upstream my driver, I try to learn how to write binding scheme.
> 
> It looks like I still did terribly.
> 
> I think my stupid misunderstanding get you angry. I'm sorry for wasting 
> your time and comments.

Apologies for being harsh. We all make mistakes and hopefully learn from
them.

> 
> I will re-submit v4 to fix it.
> 

Awesome, thank you!

Best regards,
Krzysztof