Re: [RFC PATCH] wifi: rt2x00: use VCO_IC 0x2 for RF3053 on 2.4 GHz

[Stanislaw Gruszka]

Hi

On Mon, Oct 12, 2026 at 09:37:27PM +0800, Ho Jie Feng wrote:
> Using the 0x1, the VCO calibration result is 0x7f on channels 6
> and below. Using 0x2 fixes it.
>
> Hardware: Netgear WNDA4100 (USB 0846:9013, RT3593 rev 0402, RF3053)
> 
> Signed-off-by: Ho Jie Feng <hjf3108@xxxxxxxxx>
> ---
> RFC for this since I am not sure if it is a generic fix, since the
> vendor driver also doesn't use VCO_IC=0x2.
> Is this also a known issue?

Could you elaborate what is the issue and what you mean by
"VCO calibration result is 0x7f" ?

Regards
Stanislaw

> Testing on different hardware would be appreciated.
> 
>  drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
> index 2e2e382b62475..4a44a0222210d 100644
> --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
> +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
> @@ -2979,7 +2979,7 @@ static void rt2800_config_channel_rf3053(struct rt2x00_dev *rt2x00dev,
>  
>  	rfcsr = rt2800_rfcsr_read(rt2x00dev, 6);
>  	if (rf->channel >= 1 && rf->channel <= 14)
> -		rt2x00_set_field8(&rfcsr, RFCSR6_VCO_IC, 1);
> +		rt2x00_set_field8(&rfcsr, RFCSR6_VCO_IC, 2);
>  	else if (rf->channel >= 36 && rf->channel <= 64)
>  		rt2x00_set_field8(&rfcsr, RFCSR6_VCO_IC, 2);
>  	else if (rf->channel >= 100 && rf->channel <= 128)
> 
> base-commit: af32da41b0327b9c6a37856ba82b6760d6c8d10e
> -- 
> 2.55.0
>