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[188.141.3.146]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-45b4e8de85bsm12008615e9.7.2025.08.21.07.00.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 Aug 2025 07:00:53 -0700 (PDT) Message-ID: <9863f7e7-ef3e-4f57-bbbe-9ac4aa88a426@linaro.org> Date: Thu, 21 Aug 2025 15:00:41 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] media: iris: vpu3x: Add MNoC low power handshake during hardware power-off To: Dikshita Agarwal , Vikash Garodia , Abhinav Kumar , Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Neil Armstrong References: <20250821-sm8650-power-sequence-fix-v3-1-645816ba3826@quicinc.com> From: Bryan O'Donoghue Content-Language: en-US In-Reply-To: <20250821-sm8650-power-sequence-fix-v3-1-645816ba3826@quicinc.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 21/08/2025 11:54, Dikshita Agarwal wrote: > Add the missing write to AON_WRAPPER_MVP_NOC_LPI_CONTROL before > reading the LPI status register. Introduce a handshake loop to ensure > MNoC enters low power mode reliably during VPU3 hardware power-off with > timeout handling. So right now upstream we have an incorrect power-off sequence. In which case this is a bug fix and needs a Fixes: tag. --- bod