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

From: Vasanthakumar Thiagarajan
Date: Tue Apr 08 2025 - 06:08:20 EST




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@xxxxxxxxxxxxxxxx>

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