[PATCH v3 3/4] arm64: dts: imx8mm-evk: add two parameters for samsung picophy tuning

Peter Chen peter.chen at nxp.com
Fri Jul 24 02:05:31 EDT 2020


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

Reviewed-by: Jun Li <jun.li at nxp.com>
Signed-off-by: Peter Chen <peter.chen at nxp.com>
---
Changes for v3:
- Using the new property name
Changes for v2
- Address Shawn's comment to change subject.

 arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
index 0f1d7f8aeac4..7c652b898114 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
@@ -324,6 +324,8 @@
 	srp-disable;
 	adp-disable;
 	usb-role-switch;
+	samsung,picophy-pre-emp-curr-control = <3>;
+	samsung,picophy-dc-vol-level-adjust = <7>;
 	status = "okay";
 
 	port {
-- 
2.17.1




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