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Re: [PATCH 3.6 4/4] ath9k_hw: enable PA linearization

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Hi Felix!

On Tue, Aug 7, 2012 at 6:36 PM, Felix Fietkau <nbd@xxxxxxxxxxx> wrote:
> This feature had been disabled in ath9k because the code to support
> it was incomplete, but now the code is in sync with the internal QCA
> codebase, so it's time to enable it.

is it enabled for all AR9300 based chipsets ?

>
> On many newer devices, the calibration is assumed to be done with PA
> linearization enabled.
>
> Tests with a particular AR933x device showed that the signal emitted
> at full power was highly distorted and unreliable with PA linearization
> disabled. With this patch, the signal becomes clear and stability
> is improved.
>
> Signed-off-by: Felix Fietkau <nbd@xxxxxxxxxxx>
> ---
>  drivers/net/wireless/ath/ath9k/hw.c |    3 ---
>  1 file changed, 3 deletions(-)
>
> diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
> index d95474e..bea864f 100644
> --- a/drivers/net/wireless/ath/ath9k/hw.c
> +++ b/drivers/net/wireless/ath/ath9k/hw.c
> @@ -463,9 +463,6 @@ static void ath9k_hw_init_config(struct ath_hw *ah)
>                 ah->config.spurchans[i][1] = AR_NO_SPUR;
>         }
>
> -       /* PAPRD needs some more work to be enabled */
> -       ah->config.paprd_disable = 1;
> -
>         ah->config.rx_intr_mitigation = true;
>         ah->config.pcieSerDesWrite = true;
>
> --
> 1.7.9.6 (Apple Git-31.1)
>
> --
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-- 
thanks,
shafi
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