Re: [PATCH 3/3] arm64: dts: qcom: sc8280xp-crd: add wifi calibration variant

From: Johan Hovold
Date: Mon Mar 20 2023 - 06:58:18 EST


On Mon, Mar 20, 2023 at 11:50:30AM +0100, Konrad Dybcio wrote:
>
>
> On 20.03.2023 11:46, Johan Hovold wrote:
> > Describe the bus topology for PCIe domain 6 and add the ath11k
> > calibration variant so that the board file (calibration data) can be
> > loaded.
> >
> > Link: https://bugzilla.kernel.org/show_bug.cgi?id=216036
> > Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
> > ---
> > arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 17 +++++++++++++++++
> > 1 file changed, 17 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> > index 90a5df9c7a24..5dfda12f669b 100644
> > --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
>
>
> Was mixing
> > +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
>
> this /\
>
> [...]
>
> and this \/
> > + qcom,ath11k-calibration-variant = "LE_X13S";
> Intentional? Especially given Kalle's comment on bugzilla?

Yes, it is intentional. The corresponding calibration data allows the
wifi to be used on the CRD. I measure 150 MBits/s which may a bit lower
than expected, but it's better than having no wifi at all.

Johan