linux-kernel - Re: [PATCH v7 1/2] arm64: dts: qcom: sm8650: extend the register range for UFS ICE

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Message-ID: <e44d7132-72ac-49aa-b44e-c6f9ac237ccc@linaro.org>
Date: Mon, 7 Oct 2024 09:11:10 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Bartosz Golaszewski <brgl@...ev.pl>,
 Bjorn Andersson <quic_bjorande@...cinc.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
 Om Prakash Singh <quic_omprsing@...cinc.com>,
 Gaurav Kashyap <quic_gaurkash@...cinc.com>
Subject: Re: [PATCH v7 1/2] arm64: dts: qcom: sm8650: extend the register
 range for UFS ICE

On 04/10/2024 16:15, Bartosz Golaszewski wrote:
> On Fri, Oct 4, 2024 at 4:06 PM Bjorn Andersson
> <quic_bjorande@...cinc.com> wrote:
>>
>> On Tue, Oct 01, 2024 at 10:35:30AM +0200, Bartosz Golaszewski wrote:
>>> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
>>>
>>> The Inline Crypto Engine (ICE) for UFS/EMMC supports the Hardware Key
>>> Manager (HWKM) to securely manage storage keys. Enable using this
>>> hardware on sm8650.
>>>
>>> This requires us to increase the register range: HWKM is an additional
>>> piece of hardware sitting alongside ICE, and extends the old ICE's
>>> register space.
>>>
>>
>> This commit message doesn't follow what Neil requested in v5:
>>
>> https://lore.kernel.org/lkml/109b1e46-f46f-4636-87d5-66266e04ccff@linaro.org/
>>
> 
> Because we have dropped the new property two versions ago as per this
> series' cover letter.

The patch now is fine for me, the comment was applicable to v5

> 
>>> Reviewed-by: Om Prakash Singh <quic_omprsing@...cinc.com>
>>> Tested-by: Neil Armstrong <neil.armstrong@...aro.org>
>>
>> I unfortunately can't find where Neil provided this.
>>
>> Is this tag referring to this patch having been tested together with the
>> driver changes, so he's saying that HWKM works fine. Or is he saying
>> that the old feature set still works after the growth of the register
>> region (i.e. what he requested in v5)?
>>
> 
> I think Neil tested the full functionality of HWKM on sm8650 as per
> Gaurav's instructions. I did the same as well.

Exact, I can re-test if necessary, but I trust Bartosz here.

Neil

> 
> Bart