arm64: dts: imx8mn-evk: add two parameters for samsung picophy tuning

With these two parameters tuning, it can pass USB eye diagram at evk board.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
index 98f5324..5662ba4 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
@@ -132,6 +132,8 @@
        srp-disable;
        adp-disable;
        usb-role-switch;
+       samsung,picophy-pre-emp-curr-control = <3>;
+       samsung,picophy-dc-vol-level-adjust = <7>;
        status = "okay";
 
        port {