Add p2p dev support when ath9k loaded with
use_chanctx=1. This will fix problem, when first
interface is an AP and next we would like to run
p2p_find. Before p2p scan failed.

Signed-off-by: Janusz Dziedzic <janusz.dzied...@tieto.com>
---
@Felix, Sujith please review. I am not sure if didn't miss some
case for NL80211_IFTYPE_P2P_DEVICE (special handling required?).

 drivers/net/wireless/ath/ath9k/init.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/init.c 
b/drivers/net/wireless/ath/ath9k/init.c
index f8d11ef..7da1a17 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -736,13 +736,14 @@ static const struct ieee80211_iface_limit 
if_limits_multi[] = {
                                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
                                 BIT(NL80211_IFTYPE_P2P_GO) },
        { .max = 1,     .types = BIT(NL80211_IFTYPE_ADHOC) },
+       { .max = 1,     .types = BIT(NL80211_IFTYPE_P2P_DEVICE) },
 };
 
 static const struct ieee80211_iface_combination if_comb_multi[] = {
        {
                .limits = if_limits_multi,
                .n_limits = ARRAY_SIZE(if_limits_multi),
-               .max_interfaces = 2,
+               .max_interfaces = 3,
                .num_different_channels = 2,
                .beacon_int_infra_match = true,
        },
@@ -855,6 +856,9 @@ static void ath9k_set_hw_capab(struct ath_softc *sc, struct 
ieee80211_hw *hw)
                        BIT(NL80211_IFTYPE_MESH_POINT) |
                        BIT(NL80211_IFTYPE_WDS);
 
+               if (ath9k_is_chanctx_enabled())
+                       hw->wiphy->interface_modes |= 
BIT(NL80211_IFTYPE_P2P_DEVICE);
+
                        hw->wiphy->iface_combinations = if_comb;
                        hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
        }
-- 
1.9.1

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