wifi: ath12k: limit number of channels per WMI command

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Currently the number of channels can be sent in a single WMI command is
calculated based on the maximum message length of the target, this results
in WMI exchange hang for QCC2072 as its firmware can not support those
many channels in a single command.

Add a limit to avoid this issue.

Tested-on: QCC2072 hw1.0 PCI WLAN.COL.1.0-01560-QCACOLSWPL_V1_TO_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3

Signed-off-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20260112-ath12k-support-qcc2072-v2-15-fc8ce1e43969@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>

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This commit is contained in:

Baochen Qiang 2026-01-12 15:36:35 +08:00 • committed by Jeff Johnson

parent 37b34a1c54

commit d518b2d601

2 changed files with 5 additions and 1 deletions

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3

drivers/net/wireless/ath/ath12k/wmi.c

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3

drivers/net/wireless/ath/ath12k/wmi.h

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