Sven Eckelmann <sven@xxxxxxxxxxxxx> wrote:
> Most of the txpower for the ath10k firmware is stored as twicepower (0.5 dB
> steps). This isn't the case for max_antenna_gain - which is still expected
> by the firmware as dB.
>
> The firmware is converting it from dB to the internal (twicepower)
> representation when it calculates the limits of a channel. This can be seen
> in tpc_stats when configuring "12" as max_antenna_gain. Instead of the
> expected 12 (6 dB), the tpc_stats shows 24 (12 dB).
>
> Tested on QCA9888 and IPQ4019 with firmware 10.4-3.5.3-00057.
>
> Fixes: 02256930d9b8 ("ath10k: use proper tx power unit")
> Signed-off-by: Sven Eckelmann <seckelmann@xxxxxxxxx>
> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Patch applied to ath-next branch of ath.git, thanks.
0a491167fe0c ath10k: fix max antenna gain unit
--
https://patchwork.kernel.org/project/linux-wireless/patch/20190611172131.6064-1-sven@xxxxxxxxxxxxx/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
