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Mon, 08 Jun 2026 01:23:51 -0700 (PDT) X-Received: by 2002:a17:90b:2742:b0:36b:4d63:4a96 with SMTP id 98e67ed59e1d1-370eeb1bec5mr15699133a91.1.1780907031357; Mon, 08 Jun 2026 01:23:51 -0700 (PDT) Received: from [10.217.198.68] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36f710ee4f3sm15849306a91.13.2026.06.08.01.23.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 08 Jun 2026 01:23:50 -0700 (PDT) Message-ID: <41cd662a-31ff-470b-9e77-af5655f210c4@oss.qualcomm.com> Date: Mon, 8 Jun 2026 13:53:46 +0530 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/2] arm64: dts: qcom: monaco: Remove the little/big_cpu_sleep_0 idle states To: Dmitry Baryshkov Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260522-ml_cpuidle-v1-0-fd311cf33fb4@oss.qualcomm.com> <20260522-ml_cpuidle-v1-1-fd311cf33fb4@oss.qualcomm.com> Content-Language: en-US From: Navya Malempati In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjA4MDA3NyBTYWx0ZWRfX7tbD5w6yESsz IqXHh7d/YricCxFIK0oIgwN6mzxYzZZeWJ6wC/Rybmf5G8QFzOBhSj5PkYl1WqH24R2DOyh7wm7 MIiIape/mKDpwzESzLBOK6dbp1JiKyPVPNcodb8YPJT6yxUhUt/q9eSq+M6aO9KWvv7Zx/cMXMg xNAnPIhRxmKwYVv3CzDoQ8+whcDLcT3tiC5whk7fjLOT1jGEY93O7lGKhGqM1/MFwsFEn78PLqH 6LwDsQFt47flk0bZWjqj3cVYLPq2uxkBzWWEt83kTgeclDeurTfyg5eSq36wB6jeyAsjIPwJcVi uQeggO5ljjV2fkuZDUVPjBP2P69GfbOqmhjNTGL8rfsZA5WYyFkZ3yBC4gI1D1rWEZtG6KPaFCi 3LpS3If0A/N25/rrRUREpZoTHUs4u7ig+KJ6HcdbZfEA8DrVyrdD96CrPsLWGN7dOaPjTdQahga ehjuhCVw183dwlk6tgw== X-Proofpoint-ORIG-GUID: AMIS7p9r7wW1Z03svWTMvPOOBTfCJqNe X-Proofpoint-GUID: AMIS7p9r7wW1Z03svWTMvPOOBTfCJqNe X-Authority-Analysis: v=2.4 cv=TIB1jVla c=1 sm=1 tr=0 ts=6a267c18 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=rJkE3RaqiGZ5pbrm-msn:22 a=A8xlVPZPMDKzmvWz11YA:9 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-08_02,2026-06-05_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 phishscore=0 clxscore=1015 adultscore=0 priorityscore=1501 bulkscore=0 malwarescore=0 suspectscore=0 spamscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2606080077 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