Re: [v3 3/3] arm64: dts: qcom: sc7280: Update SNPS Phy params for SC7280 IDP device
From: Krishna Kurapati PSSNV
Date: Tue May 10 2022 - 13:35:59 EST
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.