mwifiex: check firmware capabilities while initialising 5GHz band par…

…ameters

There are some SD8787 cards which don't support 5GHz band.
Therefore initialise 5GHz band parameters only if hardware
supports the band.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/cfg80211.c

@@ -1235,20 +1235,23 @@ int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac,
 	wdev->wiphy->max_scan_ssids = 10;
 	wdev->wiphy->interface_modes =
 		BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
+
 	wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
-	wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
+	mwifiex_setup_ht_caps(
+		&wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
+
+	if (priv->adapter->config_bands & BAND_A) {
+		wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
+		mwifiex_setup_ht_caps(
+			&wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
+	} else {
+		wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
+	}
 
 	/* Initialize cipher suits */
 	wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
 	wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
 
-	/* Initialize parameters for 2GHz band */
-
-	mwifiex_setup_ht_caps(&wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap,
-									priv);
-	mwifiex_setup_ht_caps(&wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap,
-									priv);
-
 	memcpy(wdev->wiphy->perm_addr, mac, 6);
 	wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;