linux-kernel - Re: [PATCH 09/10] wifi: ath12k: handle ath12k_core

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Message-ID: <b3773859-4cb4-4d8c-aa61-fb227fc22bbd@oss.qualcomm.com>
Date: Mon, 13 Jan 2025 11:24:42 -0800
From: Jeff Johnson <jeff.johnson@....qualcomm.com>
To: Aditya Kumar Singh <quic_adisi@...cinc.com>,
        Kalle Valo
 <kvalo@...nel.org>, Jeff Johnson <jjohnson@...nel.org>,
        Karthikeyan Periyasamy <quic_periyasa@...cinc.com>,
        Harshitha Prem <quic_hprem@...cinc.com>
Cc: Kalle Valo <quic_kvalo@...cinc.com>, linux-wireless@...r.kernel.org,
        ath12k@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/10] wifi: ath12k: handle ath12k_core_reset() with
 hardware grouping

On 1/8/2025 8:25 PM, 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
> 
> Signed-off-by: Aditya Kumar Singh <quic_adisi@...cinc.com>

Acked-by: Jeff Johnson <jeff.johnson@....qualcomm.com>