linux-kernel - Re: [PATCH 4/5] clk: qcom: videocc: Add support to attach multiple power domains

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: <5a86cb82-e313-4f50-a6ff-17181a2dd274@linaro.org>
Date: Thu, 20 Feb 2025 10:21:47 +0000
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: Jagadeesh Kona <quic_jkona@...cinc.com>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Konrad Dybcio <konradybcio@...nel.org>,
 Ajit Pandey <quic_ajipan@...cinc.com>,
 Imran Shaik <quic_imrashai@...cinc.com>, Taniya Das <quic_tdas@...cinc.com>,
 Satya Priya Kakitapalli <quic_skakitap@...cinc.com>,
 linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] clk: qcom: videocc: Add support to attach multiple
 power domains

On 20/02/2025 07:15, Jagadeesh Kona wrote:
>> Yes, its logically the same just done in core code.
>>
> Yes, this code attaches domains before configuring the PLLs, but it attaches PDs after get_sync()
> is called on device. As I mentioned in other patch earlier, if we attach PDS after get_sync() is
> already called on device, then power domains are not getting enabled during the probe, leading to
> the same improper PLL configuration issue. But the current patch series posted will fix this issue

That's not what I see.

The PLLs start and the GDSCs which depend also start.

Perhaps you could give the code a try and comment ?

---
bod