Re: [v3 3/3] arm64: dts: qcom: sc7280: Update SNPS Phy params for SC7280 IDP device

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On Tue, May 10, 2022 at 11:05:42PM +0530, Krishna Kurapati PSSNV wrote:
> 
> On 5/9/2022 8:50 AM, Pavan Kondeti wrote:
> >Hi Krishna,
> >
> >On Sun, May 08, 2022 at 05:42:27PM +0530, Krishna Kurapati wrote:
> >>Overriding the SNPS Phy tuning parameters for SC7280 IDP device.
> >>
> >>Signed-off-by: Sandeep Maheswaram <quic_c_sanm@xxxxxxxxxxx>
> >>Signed-off-by: Krishna Kurapati <quic_kriskura@xxxxxxxxxxx>
> >>---
> >>  arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 6 ++++++
> >>  1 file changed, 6 insertions(+)
> >>
> >>diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> >>index 5eb6689..ad85ffb 100644
> >>--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> >>+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> >>@@ -325,6 +325,12 @@
> >>  	vdda-pll-supply = <&vreg_l10c_0p8>;
> >>  	vdda33-supply = <&vreg_l2b_3p0>;
> >>  	vdda18-supply = <&vreg_l1c_1p8>;
> >>+	qcom,hs-rise-fall-time-bps = <0>;
> >>+	qcom,squelch-detector-bps = <(-2090)>;
> >>+	qcom,hs-disconnect-bps = <1743>;
> >>+	qcom,hs-amplitude-bps = <1780>;
> >>+	qcom,hs-crossover-voltage = <(-31)>;
> >>+	qcom,hs-output-impedance = <2600>;
> >>  };
> >Is this an example change or do we see any HS electrical compliance failures
> >on SC7280 IDP that will get fixed with these override sequence?
> >
> >Thanks,
> >Pavan
> 
> Hi Pavan,
> 
> These results were based on compliance testing results.
> 
Ok, Do we know what tests are failing and getting fixed with these settings?
Can you mention it in the changelog?

Thanks,
Pavan



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