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Message-ID: <1c95f61c-7460-43aa-9858-37e8799a1e5d@linaro.org>
Date: Wed, 30 Aug 2023 12:45:38 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Luca Weiss <luca.weiss@...rphone.com>,
cros-qcom-dts-watchers@...omium.org,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
Linus Walleij <linus.walleij@...aro.org>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Viresh Kumar <viresh.kumar@...aro.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
linux-pm@...r.kernel.org
Subject: Re: [PATCH 01/11] arm64: dts: qcom: sc7280: Mark some nodes as
'reserved'
On 30.08.2023 12:35, Luca Weiss wrote:
> On Wed Aug 30, 2023 at 12:08 PM CEST, Konrad Dybcio wrote:
>> On 30.08.2023 11:58, Luca Weiss wrote:
>>> With the standard Qualcomm TrustZone setup, components such as lpasscc,
>>> pdc_reset and watchdog shouldn't be touched by Linux. Mark them with
>>> the status 'reserved' and reeable them in the chrome-common dtsi.
>>>
>>> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
>>> ---
>> Could probably use /* Owned by ADSP firmware */ or /* Owned by Gunyah hyp */
>
> Do you know which one is more fitting for these nodes? I don't really
> have a reference to if the ADSP or Gunyah (is this even used here?) owns
> this.
ADSP owns the audio hw, Gunyah owns the wdog
Konrad
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