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

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On 7/23/2024 2:59 PM, Bryan O'Donoghue wrote:
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.


Parking RCG to XO doesn't keep the branch clock always-on. It just keeps the parent RCG at 19.2MHz, branch can still be disabled by clearing bit(0). So during late init, the CCF will disable this clock(in clk_disable_unused API) if modelled. Hence this clock shouldn't be modelled.


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




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