Linux ARM-MSM sub-architecture
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From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
To: "Satya Priya Kakitapalli (Temp)" <quic_skakitap@quicinc.com>,
	Bjorn Andersson <andersson@kernel.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: dmitry.baryshkov@linaro.org, stable@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, linux-clk@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] clk: qcom: camcc-sc8280xp: Remove always-on GDSC hard-coding
Date: Sat, 20 Jul 2024 09:33:43 +0100	[thread overview]
Message-ID: <610efa39-e476-45ae-bd2b-3a0b8ea485dc@linaro.org> (raw)
In-Reply-To: <dd588276-8f1c-4389-7b3a-88f483b7072e@quicinc.com>

On 19/07/2024 08:25, Satya Priya Kakitapalli (Temp) wrote:
>>
>> What is the use-case to keep that clock always-on unless/util someone 
>> wants camss ?
>>
> 
> The clock also has dependency on MMCX rail, this rail anyway will be OFF 
> until there is a use-case. So the clock will also be OFF.

arch/arm64/boot/dts/qcom/sc8280xp.dtsi

camcc: clock-controller@ad00000 {
     power-domains = <&rpmhpd SC8280XP_MMCX>;
};

> 
> 
>> I've tested this patch on sc8280xp and it works just fine.
>>
> 
> Is the cam_cc_gdsc_clk clock ON after the boot up?

I have no idea. Why does it matter ?

---
bod

  reply	other threads:[~2024-07-20  8:33 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-07-15 14:59 [PATCH] clk: qcom: camcc-sc8280xp: Remove always-on GDSC hard-coding Bryan O'Donoghue
2024-07-17  6:32 ` Satya Priya Kakitapalli (Temp)
2024-07-17  8:49   ` Bryan O'Donoghue
2024-07-17 11:08     ` Satya Priya Kakitapalli (Temp)
2024-07-17 11:11       ` Bryan O'Donoghue
2024-07-19  7:25         ` Satya Priya Kakitapalli (Temp)
2024-07-20  8:33           ` Bryan O'Donoghue [this message]
2024-07-22  8:57             ` Satya Priya Kakitapalli (Temp)
2024-07-23  9:29               ` Bryan O'Donoghue
2024-07-23 11:37                 ` Satya Priya Kakitapalli (Temp)
2024-07-23 11:49                   ` Dmitry Baryshkov
2024-07-26  7:01                 ` Satya Priya Kakitapalli (Temp)
2024-07-26 20:31                   ` Bryan O'Donoghue
2024-07-29 10:57                     ` Satya Priya Kakitapalli (Temp)

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