| Message ID | 20240520024148.5472-3-quic_bqiang@quicinc.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | wifi: ath11k: fix wrong regdomain after hibernation | expand |
On 5/19/2024 7:41 PM, Baochen Qiang wrote: > 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> Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c index 748e3ad2bec3..3772e64d4976 100644 --- a/drivers/net/wireless/ath/ath11k/core.c +++ b/drivers/net/wireless/ath/ath11k/core.c @@ -1009,6 +1009,16 @@ int ath11k_core_resume(struct ath11k_base *ab) return -ETIMEDOUT; } + if (ab->hw_params.current_cc_support && + ar->alpha2[0] != 0 && ar->alpha2[1] != 0) { + ret = ath11k_reg_set_cc(ar); + if (ret) { + ath11k_warn(ab, "failed to set country code during resume: %d\n", + ret); + return ret; + } + } + ret = ath11k_dp_rx_pktlog_start(ab); if (ret) ath11k_warn(ab, "failed to start rx pktlog during resume: %d\n",
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> --- drivers/net/wireless/ath/ath11k/core.c | 10 ++++++++++ 1 file changed, 10 insertions(+)