wifi: ath11k: restore country code during resume
JIRA: https://issues.redhat.com/browse/RHEL-34696
commit 7f0343b7b8710436c1e6355c71782d32ada47e0c
Author: Baochen Qiang <quic_bqiang@quicinc.com>
Date: Tue May 21 11:08:11 2024 +0300
wifi: ath11k: restore country code during resume
We got report that regdomain is not correct after
return from hibernation:
Before hibernation:
% iw reg get
[...]
phy#0 (self-managed)
country CH: DFS-ETSI
(2402 - 2482 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 23), (N/A), NO-OUTDOOR, AUTO-BW
(5250 - 5330 @ 80), (N/A, 23), (0 ms), NO-OUTDOOR, DFS, AUTO-BW
(5490 - 5590 @ 80), (N/A, 30), (0 ms), DFS, AUTO-BW
(5590 - 5650 @ 40), (N/A, 30), (600000 ms), DFS, AUTO-BW
(5650 - 5730 @ 80), (N/A, 30), (0 ms), DFS, AUTO-BW
(5735 - 5875 @ 80), (N/A, 14), (N/A), AUTO-BW
After hibernation:
% iw reg get
[...]
phy#0 (self-managed)
country na: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 20), (N/A, 20), (N/A), PASSIVE-SCAN
(5170 - 5330 @ 160), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5735 - 5895 @ 160), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5945 - 7125 @ 160), (N/A, 30), (N/A), AUTO-BW, PASSIVE-SCAN
The reason is, during resume, firmware is reinitialized but host does
not send current country code to firmware. So default reg rules with
country code set to 'na' is uploaded to host, as shown above.
Fix it by restoring country code to firmware during resume.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03125-QCAHSPSWPL_V1_V2_SILICONZ_LITE-3.6510.30
Fixes: 166a490f59ac ("wifi: ath11k: support hibernation")
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240520024148.5472-3-quic_bqiang@quicinc.com
Signed-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>
fd3dade59b