linux-kernel - Re: [PATCH ath-next v4 5/9] wifi: ath12k: fix firmware assert during reboot with hardware grouping

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Message-ID: <7db95e73-18c9-cad2-5a5c-181db8e4aba7@quicinc.com>
Date: Tue, 8 Apr 2025 15:23:55 +0530
From: Vasanthakumar Thiagarajan <quic_vthiagar@...cinc.com>
To: Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>,
        Johannes Berg
	<johannes@...solutions.net>,
        Jeff Johnson <jjohnson@...nel.org>,
        "Karthikeyan
 Periyasamy" <quic_periyasa@...cinc.com>,
        Kalle Valo <kvalo@...nel.org>, Harshitha Prem <quic_hprem@...cinc.com>
CC: Jeff Johnson <jeff.johnson@....qualcomm.com>,
        <linux-wireless@...r.kernel.org>, <ath12k@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH ath-next v4 5/9] wifi: ath12k: fix firmware assert during
 reboot with hardware grouping



On 4/8/2025 11:36 AM, Aditya Kumar Singh wrote:
> At present, during PCI shutdown, the power down is only executed for a
> single device. However, when operating in a group, all devices need to be
> powered down simultaneously. Failure to do so will result in a firmware
> assertion.
> 
> Hence, introduce a new ath12k_pci_hw_group_power_down() and call it during
> power down. This will ensure that all partner devices are properly powered
> down.
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> 
> Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@....qualcomm.com>

Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@....qualcomm.com>