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Re: [PATCH] ath10k: Limit available channels via DT ieee80211-freq-limit

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On 7/30/2018 8:54 PM, Arend van Spriel wrote:
+ Rafał

On 7/30/2018 5:39 PM, Sven Eckelmann wrote:
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.

Wondering whether we can call it in wiphy_register() like below. Not
sure why we did not explore that with the introduction of it by Rafał.
Maybe he remembers. I did not find something in that direction in
patchwork, but may have missed it. I know mt76 drops the band reference
if it ends up with all channels disabled. Maybe that was the reason.

Sorry for sending this twice. My wifi connection was quirky.

Gr. AvS




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