iwlwifi: make scan antenna forcing more generic

Some future hardware will also require some antenna
overrides so make the current logic more generic;
right now it is semantically based on a workaround
for off-channel reception but the reasons for the
new antenna overrides will be different.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index ccf335775ec3..4bd0aecc7713 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -1405,13 +1405,6 @@ void iwlagn_request_scan(struct iwl_priv *priv)
                  * detect transmissions.
                  */
                 scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH : 0;
-
-                /* Force use of chains B and C (0x6) for scan Rx
-                 * Avoid A (0x1) for the device has off-channel reception
-                 * on A-band.
-                 */
-                if (priv->cfg->off_channel_workaround)
-                        rx_ant = ANT_BC;
                 break;
         default:
                 IWL_WARN(priv, "Invalid scan band count\n");
@@ -1420,6 +1413,9 @@ void iwlagn_request_scan(struct iwl_priv *priv)
 
         band = priv->scan_band;
 
+        if (priv->cfg->scan_antennas[band])
+                rx_ant = priv->cfg->scan_antennas[band];
+
         priv->scan_tx_ant[band] =
                         iwl_toggle_tx_ant(priv, priv->scan_tx_ant[band]);
         rate_flags |= iwl_ant_idx_to_flags(priv->scan_tx_ant[band]);