linux-kernel - Re: [PATCH] media: iris: vpu3x: Add MNoC low power handshake during hardware power-off

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Message-ID: <0ed803d1-ad7f-8a1b-b704-a3a38bdf4878@quicinc.com>
Date: Tue, 12 Aug 2025 15:01:19 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Vikash Garodia
	<quic_vgarodia@...cinc.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        "Mauro
 Carvalho Chehab" <mchehab@...nel.org>
CC: <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>
Subject: Re: [PATCH] media: iris: vpu3x: Add MNoC low power handshake during
 hardware power-off



On 8/12/2025 2:30 PM, Bryan O'Donoghue wrote:
> On 12/08/2025 08:48, 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.
> 
> Can you confirm this is the sequence you want for sm8750 also ?

Yes, I have already mentioned in the SM8750 patches.

Thanks,
Dikshita
> 
> ---
> bod