linux-kernel - Re: [PATCH V3 1/4] dt-bindings: mmc: Add dll-hsr-list for HS400 and HS200 modes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <abdde4ff-eae2-44c4-8608-89c762790549@kernel.org>
Date: Thu, 26 Jun 2025 19:42:41 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Ram Prakash Gupta <quic_rampraka@...cinc.com>,
 Sachin Gupta <quic_sachgupt@...cinc.com>,
 Ulf Hansson <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Adrian Hunter <adrian.hunter@...el.com>,
 Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc: linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 quic_cang@...cinc.com, quic_nguyenb@...cinc.com, quic_bhaskarv@...cinc.com,
 quic_mapa@...cinc.com, quic_narepall@...cinc.com, quic_nitirawa@...cinc.com,
 quic_sartgarg@...cinc.com
Subject: Re: [PATCH V3 1/4] dt-bindings: mmc: Add dll-hsr-list for HS400 and
 HS200 modes

On 26/06/2025 16:16, Ram Prakash Gupta wrote:
> On 1/22/2025 3:56 PM, Krzysztof Kozlowski wrote:
>> On 22/01/2025 10:47, Sachin Gupta wrote:
>>> Document the 'dll-hsr-list' property for MMC device tree bindings.
>>> The 'dll-hsr-list' property defines the DLL configurations for HS400
>>> and HS200 modes.
>>>
>>> Signed-off-by: Sachin Gupta <quic_sachgupt@...cinc.com>
>>> ---
>>>  Documentation/devicetree/bindings/mmc/sdhci-msm.yaml | 5 +++++
>>>  1 file changed, 5 insertions(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
>>> index 8b393e26e025..65dc3053df75 100644
>>> --- a/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
>>> +++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.yaml
>>> @@ -133,6 +133,11 @@ properties:
>>>      $ref: /schemas/types.yaml#/definitions/uint32
>>>      description: platform specific settings for DLL_CONFIG reg.
>>>  
>>> +  qcom,dll-hsr-list:
>>> +    maxItems: 10
>>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> uint32 has only one item. Anyway, there is already DLL there, so don't
>> duplicate or explain why this is different. Explain also why this is not
>> deducible from the compatible.
> 


Timeline still amazes me. I will be grumpy on this thread.

> I will change it to reflect array from uint32.
> There is change with artanis DLL hw addition where it need total of 5 entries
> (dll_config, dll_config_2, dll_config_3, dll_usr_ctl, ddr_config)
> for each HS400 and HS200 modes, hence the new addition in dt. And these values
> are not fixed and varies for every SoC, hence this needs to be passed through
> dt like it was passed earlier for qcom,dll-config & qcom,ddr-config.


Eh, no. That's not a valid reason. It's still SoC deducible. Don't bring
your downstream practices here, but remove EVERYTHING from downstream
and start doing things like upstream is doing.

Best regards,
Krzysztof