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From: Navya Malempati <navya.malempati@oss.qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] arm64: dts: qcom: monaco: Remove the little/big_cpu_sleep_0 idle states
Date: Mon, 8 Jun 2026 13:53:46 +0530	[thread overview]
Message-ID: <41cd662a-31ff-470b-9e77-af5655f210c4@oss.qualcomm.com> (raw)
In-Reply-To: <qlraiygk7tcq5xvdxwp5ijfffhmn4akza237lij4xf65fmc3dj@33yozanoe4rk>



On 6/8/2026 12:54 AM, Dmitry Baryshkov wrote:
> On Fri, May 22, 2026 at 04:40:13PM +0530, Navya Malempati wrote:
>> Firmware supports both CPU power collapse (little/big_cpu_sleep_0) and
>> CPU PLL/rail power collapse (little/big_cpu_sleep_1) idle states.
>> However, CPU power collapse modes are often not utilized in favor of
>> performance, so remove the CPU power collapse modes for monaco,
> 
> They are not used now. Will they be used if the cpuidle governor is
> changed? If they are valid from the hardware point of view, why do you
> want to remove them?
> 

Even though they are valid from hardware and can be used, they do not 
seem to be benefiting power/performance, hence removing them. This is 
irrespective of cpuidle governor menu/teo making use of them.

Thanks,
Navya

  reply	other threads:[~2026-06-08  8:23 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-22 11:10 [PATCH 0/2] Remove gold/silver_cpu_sleep idle states for lemans and monaco Navya Malempati
2026-05-22 11:10 ` [PATCH 1/2] arm64: dts: qcom: monaco: Remove the little/big_cpu_sleep_0 idle states Navya Malempati
2026-06-05 10:04   ` Maulik Shah (mkshah)
2026-06-07 19:24   ` Dmitry Baryshkov
2026-06-08  8:23     ` Navya Malempati [this message]
2026-05-22 11:10 ` [PATCH 2/2] arm64: dts: qcom: lemans: Remove the gold_cpu_sleep idle state Navya Malempati
2026-06-05 10:05   ` Maulik Shah (mkshah)
2026-07-08 14:56 ` [PATCH 0/2] Remove gold/silver_cpu_sleep idle states for lemans and monaco Bjorn Andersson

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