ath5k: add possible wiphy interface combinations

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

drivers/net/wireless/ath/ath5k/base.c

@@ -2415,6 +2415,22 @@ ath5k_tx_complete_poll_work(struct work_struct *work)
 * Initialization routines *
 \*************************/
 
+static const struct ieee80211_iface_limit if_limits[] = {
+	{ .max = 2048,	.types = BIT(NL80211_IFTYPE_STATION) },
+	{ .max = 4,	.types =
+#ifdef CONFIG_MAC80211_MESH
+				 BIT(NL80211_IFTYPE_MESH_POINT) |
+#endif
+				 BIT(NL80211_IFTYPE_AP) },
+};
+
+static const struct ieee80211_iface_combination if_comb = {
+	.limits = if_limits,
+	.n_limits = ARRAY_SIZE(if_limits),
+	.max_interfaces = 2048,
+	.num_different_channels = 1,
+};
+
 int __devinit
 ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
 {
@@ -2436,6 +2452,9 @@ ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
 		BIT(NL80211_IFTYPE_ADHOC) |
 		BIT(NL80211_IFTYPE_MESH_POINT);
 
+	hw->wiphy->iface_combinations = &if_comb;
+	hw->wiphy->n_iface_combinations = 1;
+
 	/* SW support for IBSS_RSN is provided by mac80211 */
 	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;