qcacld-3.0: Set chainmask based on home channel frequency

Host uses return value of function "hdd_get_adapter_home_channel" as
channel number when starting spectral scan and setting chainmask.
Which cause chainmask not to be set properly and parsing spectral
scan result fail. So, add this change to set chainmask based on home
channel frequency.

Change-Id: I3e25091841769d738dec101708e16602d783a363
CRs-Fixed: 3001325

core/hdd/src/wlan_hdd_spectralscan.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -616,14 +616,19 @@ QDF_STATUS wlan_spectral_update_rx_chainmask(struct hdd_adapter *adapter)
 	uint32_t chainmask_2g = 0;
 	uint32_t chainmask_5g = 0;
 	uint32_t chainmask;
-	uint8_t home_chan;
+	qdf_freq_t home_chan_freq;
 	uint8_t pdev_id;
 	struct wlan_objmgr_vdev *vdev;
 
-	home_chan = hdd_get_adapter_home_channel(adapter);
+	home_chan_freq = hdd_get_adapter_home_channel(adapter);
 	pdev_id = wlan_objmgr_pdev_get_pdev_id(adapter->hdd_ctx->pdev);
 	wma_get_rx_chainmask(pdev_id, &chainmask_2g, &chainmask_5g);
-	chainmask = home_chan > MAX_24GHZ_CHANNEL ? chainmask_5g : chainmask_2g;
+	chainmask = chainmask_5g;
+
+	if (wlan_reg_is_24ghz_ch_freq(home_chan_freq))
+		chainmask = chainmask_2g;
+
+	hdd_debug("chan freq %d chainmask %d", home_chan_freq, chainmask);
 	vdev = hdd_objmgr_get_vdev_by_user(adapter, WLAN_OSIF_SPECTRAL_ID);
 	if (!vdev)
 		return QDF_STATUS_E_FAILURE;