* [PATCH] arm64: dts: imx95: add fsl,phy-tx-vref-tune-percent tuning properties for USB3 PHY
@ 2025-08-21 11:08 Xu Yang
2025-08-21 14:51 ` Frank Li
2025-08-22 9:47 ` Shawn Guo
0 siblings, 2 replies; 3+ messages in thread
From: Xu Yang @ 2025-08-21 11:08 UTC (permalink / raw)
To: robh, krzk+dt, conor+dt, shawnguo, kernel, festevam
Cc: devicetree, imx, linux-arm-kernel
Add it to improve USB signal quality.
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
---
arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts | 1 +
arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
index 46f6e0fbf2b0..f0aff01cefbf 100644
--- a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
@@ -1082,6 +1082,7 @@ &usb3_phy {
fsl,phy-pcs-tx-swing-full-percent = <100>;
fsl,phy-tx-preemp-amp-tune-microamp = <600>;
fsl,phy-tx-vboost-level-microvolt = <1156>;
+ fsl,phy-tx-vref-tune-percent = <100>;
status = "okay";
port {
diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
index 2f949a0d48d2..064bc508eb1b 100644
--- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
@@ -622,6 +622,7 @@ &usb3_phy {
fsl,phy-pcs-tx-swing-full-percent = <100>;
fsl,phy-tx-preemp-amp-tune-microamp = <600>;
fsl,phy-tx-vboost-level-microvolt = <1156>;
+ fsl,phy-tx-vref-tune-percent = <100>;
orientation-switch;
status = "okay";
--
2.34.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: dts: imx95: add fsl,phy-tx-vref-tune-percent tuning properties for USB3 PHY
2025-08-21 11:08 [PATCH] arm64: dts: imx95: add fsl,phy-tx-vref-tune-percent tuning properties for USB3 PHY Xu Yang
@ 2025-08-21 14:51 ` Frank Li
2025-08-22 9:47 ` Shawn Guo
1 sibling, 0 replies; 3+ messages in thread
From: Frank Li @ 2025-08-21 14:51 UTC (permalink / raw)
To: Xu Yang
Cc: robh, krzk+dt, conor+dt, shawnguo, kernel, festevam, devicetree,
imx, linux-arm-kernel
On Thu, Aug 21, 2025 at 07:08:28PM +0800, Xu Yang wrote:
> Add it to improve USB signal quality.
>
> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
> ---
> arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts | 1 +
> arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
> index 46f6e0fbf2b0..f0aff01cefbf 100644
> --- a/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx95-15x15-evk.dts
> @@ -1082,6 +1082,7 @@ &usb3_phy {
> fsl,phy-pcs-tx-swing-full-percent = <100>;
> fsl,phy-tx-preemp-amp-tune-microamp = <600>;
> fsl,phy-tx-vboost-level-microvolt = <1156>;
> + fsl,phy-tx-vref-tune-percent = <100>;
> status = "okay";
>
> port {
> diff --git a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> index 2f949a0d48d2..064bc508eb1b 100644
> --- a/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dts
> @@ -622,6 +622,7 @@ &usb3_phy {
> fsl,phy-pcs-tx-swing-full-percent = <100>;
> fsl,phy-tx-preemp-amp-tune-microamp = <600>;
> fsl,phy-tx-vboost-level-microvolt = <1156>;
> + fsl,phy-tx-vref-tune-percent = <100>;
> orientation-switch;
> status = "okay";
>
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] arm64: dts: imx95: add fsl,phy-tx-vref-tune-percent tuning properties for USB3 PHY
2025-08-21 11:08 [PATCH] arm64: dts: imx95: add fsl,phy-tx-vref-tune-percent tuning properties for USB3 PHY Xu Yang
2025-08-21 14:51 ` Frank Li
@ 2025-08-22 9:47 ` Shawn Guo
1 sibling, 0 replies; 3+ messages in thread
From: Shawn Guo @ 2025-08-22 9:47 UTC (permalink / raw)
To: Xu Yang
Cc: robh, krzk+dt, conor+dt, shawnguo, kernel, festevam, devicetree,
imx, linux-arm-kernel
On Thu, Aug 21, 2025 at 07:08:28PM +0800, Xu Yang wrote:
> Add it to improve USB signal quality.
>
> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Applied, thanks!
^ permalink raw reply [flat|nested] 3+ messages in thread
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2025-08-21 11:08 [PATCH] arm64: dts: imx95: add fsl,phy-tx-vref-tune-percent tuning properties for USB3 PHY Xu Yang
2025-08-21 14:51 ` Frank Li
2025-08-22 9:47 ` Shawn Guo
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