linux-kernel - Re: [PATCH 2/2] dt-bindings: memory-controllers: Add mediatek common-dramc dt-bindings

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Message-ID: <d81c46ca-45de-4c69-a786-9c74bd06333c@kernel.org>
Date: Tue, 11 Feb 2025 16:55:13 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Crystal Guo (郭晶) <Crystal.Guo@...iatek.com>,
 "robh@...nel.org" <robh@...nel.org>,
 "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
 "conor+dt@...nel.org" <conor+dt@...nel.org>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: "linux-arm-kernel@...ts.infradead.org"
 <linux-arm-kernel@...ts.infradead.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
 "linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
 Project_Global_Chrome_Upstream_Group
 <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH 2/2] dt-bindings: memory-controllers: Add mediatek
 common-dramc dt-bindings

On 11/02/2025 13:56, Crystal Guo (郭晶) wrote:
>>> Signed-off-by: Crystal Guo <crystal.guo@...iatek.com>
>>> ---
>>>  .../mediatek,common-dramc.yaml                | 129
>>> ++++++++++++++++++
>>>  1 file changed, 129 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/memory-
>>> controllers/mediatek,common-dramc.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/memory-
>>> controllers/mediatek,common-dramc.yaml
>>> b/Documentation/devicetree/bindings/memory-
>>> controllers/mediatek,common-dramc.yaml
>>> new file mode 100644
>>> index 000000000000..c9e608c7f183
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/memory-
>>> controllers/mediatek,common-dramc.yaml
>>> @@ -0,0 +1,129 @@
>>> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
>>> +# Copyright (c) 2024 MediaTek Inc.
>>> +%YAML 1.2
>>> +---
>>> +$id: 
>>> https://urldefense.com/v3/__http://devicetree.org/schemas/memory-controllers/mediatek,common-dramc.yaml*__;Iw!!CTRNKA9wMg0ARbw!mztYfN3n6_IAx78S44PFOetQS51-h6obm2HHrjEVRI-HJYyzJ2VWbbik2rn3pybssUBOT4gp5GD5-Mgk$
>>> +$schema: 
>>> https://urldefense.com/v3/__http://devicetree.org/meta-schemas/core.yaml*__;Iw!!CTRNKA9wMg0ARbw!mztYfN3n6_IAx78S44PFOetQS51-h6obm2HHrjEVRI-HJYyzJ2VWbbik2rn3pybssUBOT4gp5AGE5Eci$
>>> +
>>> +title: MediaTek Common DRAMC (DRAM Controller)
>>
>> Common? Is this a real thing? Please describe the hardware.
>>
> 
> Sorry, my original description was not accurate. It has been changed
> to:
> 
> Title: MediaTek DRAM Controller (DRAMC)
> 
>>> +
>>> +maintainers:
>>> +  - Crystal Guo <crystal.guo@...iatek.com>
>>> +
>>> +description: |
>>
>> Do not need '|' unless you need to preserve formatting.
>>
> 
> Okay, remove it in v2.
> 
>>> +  The DRAM controller of MediaTek SoC provides an interface to
>>> +  get the current data rate of DRAM.
>>
>> So not common here?
> 
> Sorry, my original title description was not accurate.
> 
>>
>>> +
>>> +properties:
>>> +  compatible:
>>> +    const: mediatek,common-dramc
>>
>> This has to be SoC.
>>
> 
> Change to "mediatek,mt8196-dramc"
> 
>>> +
>>> +  reg:
>>> +    minItems: 9
>>
>> Why this is flexible?
>>
> The original implementation was incorrect and has been corrected in v2


You replied to two months old review. I don't have the context and I do
not have these emails in my inbox, therefore if you have any questions I
cannot answer.

Please implement entire feedback or discuss within reasonable amount of
time. If something is unresolved, please mention it in the changelog of
future versions.

Best regards,
Krzysztof