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Re: [PATCH v4 3/3] ath10k: allow dynamic SAR power limits via common API

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Carl Huang <cjhuang@xxxxxxxxxxxxxx> wrote:

> ath10k assigns ath10k_mac_set_sar_specs to ath10k_ops, and
> this function is called when user space application calls
> NL80211_CMD_SET_SAR_SPECS. ath10k also registers SAR type,
> and supported frequency ranges to wiphy so user space can
> query SAR capabilities.
> 
> This SAR power limitation is compared to regulatory txpower
> and selects the minimal one to set when station is connected.
> Otherwise, it delays until the station is connected. If the
> station is disconnected, it returns to regulatory txpower.
> 
> This feature is controlled by hw parameter: dynamic_sar_support.
> 
> Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1
> 
> Signed-off-by: Carl Huang <cjhuang@xxxxxxxxxxxxxx>
> Reviewed-by: Brian Norris <briannorris@xxxxxxxxxxxx>
> Reviewed-by: Abhishek Kumar <kuabhs@xxxxxxxxxxxx>
> Reported-by: kernel test robot <lkp@xxxxxxxxx>
> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>

In the pending branch removed test for !sar->sub_specs based on Dan's report.

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20201203103728.3034-4-cjhuang@xxxxxxxxxxxxxx/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches




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