wifi: ath12k: encode max Tx power in scan channel list command

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-v1-1-70d9963a21e4@quicinc.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 57132c269aad883ed5181a3e8b300fc9b11a9d93..c7d128d41a9222debdca477dc6c08e1372ccd304 100644 (file)
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -2832,6 +2832,8 @@ 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",