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ath10k: limit available channels via DT ieee80211-freq-limit

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Tri-band devices (1x 2.4GHz + 2x 5GHz) often incorporate special filters in
the RX and TX path. These filtered channel can in theory still be used by
the hardware but the signal strength is reduced so much that it makes no
sense.

There is already a DT property to limit the available channels but ath10k
has to manually call this functionality to limit the currrently set wiphy
channels further.

Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Sven Eckelmann 2018-08-24 15:04:59 +03:00 committed by Kalle Valo
parent 4405b632e3
commit 34d5629d2c
1 changed files with 2 additions and 0 deletions
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2
drivers/net/wireless/ath/ath10k/mac.c
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@ -18,6 +18,7 @@
#include "mac.h"
#include <net/cfg80211.h>
#include <net/mac80211.h>
#include <linux/etherdevice.h>
#include <linux/acpi.h>
@ -8359,6 +8360,7 @@ int ath10k_mac_register(struct ath10k *ar)
ar->hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
}
wiphy_read_of_freq_limits(ar->hw->wiphy);
ath10k_mac_setup_ht_vht_cap(ar);
ar->hw->wiphy->interface_modes =