linux-kernel - Re: [PATCH ath-next v4 8/9] wifi: ath12k: handle ath12k_core

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Message-ID: <c93e0a01-1ea4-6417-557b-51fbdc4a728b@quicinc.com>
Date: Tue, 8 Apr 2025 15:28:38 +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 8/9] wifi: ath12k: handle ath12k_core_reset()
 with hardware grouping



On 4/8/2025 11:36 AM, Aditya Kumar Singh wrote:
> Currently, in ath12k_core_reset(), the device is powered up immediately
> after a power down. However, with hardware grouping, when one device
> asserts, all partner devices also asserts. If there is a delay in
> processing these asserts, by the time this device powers up, other devices
> might still be asserting, leading to an overall recovery failure.
> 
> To prevent this issue, ensure all asserts for a group are processed before
> initiating the power-up sequence.
> 
> 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>