linux-kernel - Re: [PATCH] clk: qcom: camcc-sc8280xp: Remove always-on GDSC hard-coding

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Message-ID: <a0ac4c3b-3c46-4c89-9947-d91ba06309f4@linaro.org>
Date: Tue, 23 Jul 2024 10:29:56 +0100
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: "Satya Priya Kakitapalli (Temp)" <quic_skakitap@...cinc.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>
Cc: dmitry.baryshkov@...aro.org, stable@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] clk: qcom: camcc-sc8280xp: Remove always-on GDSC
 hard-coding

On 22/07/2024 09:57, Satya Priya Kakitapalli (Temp) wrote:
>> I have no idea. Why does it matter ?
>>
> 
> This clock expected to be kept always ON, as per design, or else the 
> GDSC transition form ON to OFF (vice versa) wont work.

Yes, parking to XO per this patch works for me. So I guess its already 
on and is left in that state by the park.

> Want to know the clock status after bootup, to understand if the clock 
> got turned off during the late init. May I know exactly what you have 
> tested? Did you test the camera usecases as well?

Of course.

The camera works on x13s with this patch. That's what I mean by tested.

---
bod