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Message-ID: <08b70537-d23c-414c-a539-d5166e9e27c1@linaro.org>
Date: Tue, 16 Jul 2024 01:00:21 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Patrick Wildt <patrick@...eri.se>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
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>, 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 16.07.2024 12:01 AM, 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.

Huh, great nod from qca!
Looks like there's even a bit more hw supported in there..

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad

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