linux-kernel - Re: [PATCH 1/4] arm64: dts: rockchip: list all CPU supplies on ArmSoM Sige5

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Message-Id: <36711B65-DD45-4539-BD9C-0382936FD0A3@gmail.com>
Date: Mon, 23 Jun 2025 17:02:56 +0200
From: Piotr Oniszczuk <piotr.oniszczuk@...il.com>
To: Alexey Charkov <alchark@...il.com>
Cc: Heiko Stuebner <heiko@...ech.de>,
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>,
 XiaoDong Huang <derrick.huang@...k-chips.com>,
 Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org,
 Jonas Karlman <jonas@...boo.se>
Subject: Re: [PATCH 1/4] arm64: dts: rockchip: list all CPU supplies on ArmSoM
 Sige5



> Wiadomość napisana przez Alexey Charkov <alchark@...il.com> w dniu 23 cze 2025, o godz. 15:58:
> 
> On Mon, Jun 23, 2025 at 1:19 PM Alexey Charkov <alchark@...il.com> wrote:
>> 
>> 
> 
> Okay, I've bisected this.
> 
> TLDR: Linux and u-boot seem to have nothing to do with it, opensource
> TF-A doesn't work, binary BL31 starting with v1.09 do not work. BL31
> v1.08 and earlier work fine.


just fyi: 
to confirm: replacing only bl31 to 1.08 makes all good
with perf gov. clocks staying on 2200/2300
clock estimations are predictable, constant and estimating constantly 2400
ux is „like” on 3588

Alexey: many thx for finding root cause component!