netdev - Re: [PATCH 2/2] arm64: dts: qcom: x1e80100-yoga: add wifi calibration variant

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Message-ID: <56zweixkjz2oqvmmxxgd3zoc2jf4us4mmhutjtjvejsurtycwh@fv24arxg2eqr>
Date: Tue, 16 Jul 2024 14:12:56 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Patrick Wildt <patrick@...eri.se>
Cc: Kalle Valo <kvalo@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
	Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
	Andy Gross <agross@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Steev Klimaszewski <steev@...i.org>, linux-wireless@...r.kernel.org, netdev@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Johan Hovold <johan+linaro@...nel.org>
Subject: Re: [PATCH 2/2] arm64: dts: qcom: x1e80100-yoga: add wifi
 calibration variant

On Tue, Jul 16, 2024 at 12:01:28AM GMT, Patrick Wildt wrote:
> Am Tue, Jul 16, 2024 at 12:51:53AM +0300 schrieb Dmitry Baryshkov:
> > On Mon, Jul 15, 2024 at 09:40:41PM GMT, Patrick Wildt wrote:
> > > Describe the bus topology for PCIe domain 4 and add the ath12k
> > > calibration variant so that the board file (calibration data) can be
> > > loaded.
> > > 
> > > Signed-off-by: Patrick Wildt <patrick@...eri.se>
> > > ---
> > >  .../boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts      |  9 +++++++++
> > >  arch/arm64/boot/dts/qcom/x1e80100.dtsi                 | 10 ++++++++++
> > >  2 files changed, 19 insertions(+)
> > > 
> > > diff --git a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> > > index fbff558f5b07..f569f0fbd1fc 100644
> > > --- a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> > > +++ b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> > > @@ -635,6 +635,15 @@ &pcie4_phy {
> > >  	status = "okay";
> > >  };
> > >  
> > > +&pcie4_port0 {
> > > +	wifi@0 {
> > > +		compatible = "pci17cb,1107";
> > > +		reg = <0x10000 0x0 0x0 0x0 0x0>;
> > > +
> > > +		qcom,ath12k-calibration-variant = "LES790";
> > 
> > It doesn't look like it follows the rest of the calibration variants.
> > 
> > Something like "Lenovo_Y7x" or "Lenovo_Yoga7x" sounds more logical.
> 
> This is what's both in the DSDT
> 
>   Device (WLN)
>   {
>     [...]
>     Name (BDFE, "BDF_LES790")
> 
> and kvalo's board-2.bin for this machine:
> 
>   $ strings board-2.bin | grep LES
>   bus=pci,vendor=17cb,device=1107,subsystem-vendor=17aa,subsystem-device=e0e9,qmi-chip-id=2,qmi-board-id=255,variant=LES790
> 
> I don't think we can hand-pick these strings, they come from whoever
> decided upon them and fed them into ACPI tables and QC's binaries.

Ack, if Kalle has already selected this string, we can't argue.


Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>


-- 
With best wishes
Dmitry