linux-kernel - Re: [PATCH ath-next v11 11/13] wifi: ath12k: Power up userPD

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Message-ID: <37a33341-a83f-6349-6bff-23b082aa46ad@oss.qualcomm.com>
Date: Tue, 18 Mar 2025 09:31:30 +0530
From: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@....qualcomm.com>
To: Raj Kumar Bhagat <quic_rajkbhag@...cinc.com>, ath12k@...ts.infradead.org
Cc: Johannes Berg <johannes@...solutions.net>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Jeff Johnson <jjohnson@...nel.org>, linux-wireless@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sowmiya Sree Elavalagan <quic_ssreeela@...cinc.com>
Subject: Re: [PATCH ath-next v11 11/13] wifi: ath12k: Power up userPD



On 3/18/2025 2:16 AM, Raj Kumar Bhagat wrote:
> From: Sowmiya Sree Elavalagan <quic_ssreeela@...cinc.com>
> 
> UserPD firmware image is loaded and booted by ath12k driver. Get the userPD
> memory region from DTS and load the firmware for userPD from pre-defined
> path into io-remapped address of this region. Authenticate this image
> using pasid which is a peripheral ID. Set the spawn bit to instruct Q6
> to spawn userPD thread. Wait for userPD to spawn which is indicated by
> spawn interrupt. Ready interrupt is triggered once the userPD is powered
> up completely.
> 
> Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Sowmiya Sree Elavalagan <quic_ssreeela@...cinc.com>
> Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@...cinc.com>

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