6.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sathishkumar Muruganandam quic_murugana@quicinc.com
[ Upstream commit 07c34cad10ab0ac8b06ede8a7fbc55ecf2efa3e6 ]
Currently, when sending the scan channel list command to the firmware, the maximum Tx power is not encoded in the reg2 member. This omission causes the firmware to be unaware of the host's maximum Tx power, leading to incorrect Tx power derivation at firmware level.
To resolve this issue, encode the maximum Tx power in the scan channel list command before sending it to firmware.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.3.1-00173-QCAHKSWPL_SILICONZ-1 Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Signed-off-by: Sathishkumar Muruganandam quic_murugana@quicinc.com Signed-off-by: Aditya Kumar Singh quic_adisi@quicinc.com Tested-by: Nicolas Escande nico.escande@gmail.com Link: https://patch.msgid.link/20250107-add_max_reg_pwr_in_scan_ch_list_cmd-v1-1-7... Signed-off-by: Jeff Johnson jeff.johnson@oss.qualcomm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath12k/wmi.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c index abb510d235a52..7a87777e0a047 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.c +++ b/drivers/net/wireless/ath/ath12k/wmi.c @@ -2794,6 +2794,8 @@ int ath12k_wmi_send_scan_chan_list_cmd(struct ath12k *ar, WMI_CHAN_REG_INFO1_REG_CLS); *reg2 |= le32_encode_bits(channel_arg->antennamax, WMI_CHAN_REG_INFO2_ANT_MAX); + *reg2 |= le32_encode_bits(channel_arg->maxregpower, + WMI_CHAN_REG_INFO2_MAX_TX_PWR);
ath12k_dbg(ar->ab, ATH12K_DBG_WMI, "WMI chan scan list chan[%d] = %u, chan_info->info %8x\n",