From: Peter Chen <peter.chen@nxp.com>
To: shawnguo@kernel.org, robh+dt@kernel.org
Cc: linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de,
devicetree@vger.kernel.org, linux-imx@nxp.com,
linux-usb@vger.kernel.org, Peter Chen <peter.chen@nxp.com>
Subject: [PATCH v2 4/4] arm64: dts: imx8mn-evk: add two parameters for picophy tuning
Date: Fri, 17 Jul 2020 12:22:26 +0800 [thread overview]
Message-ID: <20200717042226.18495-4-peter.chen@nxp.com> (raw)
In-Reply-To: <20200717042226.18495-1-peter.chen@nxp.com>
With these two parameters tuning, it can pass USB eye diagram at evk board.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
Changes for v2
- Address Shawn's comment to change subject.
arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi
index 85fc0aa38c4f..a6e9035e6cd5 100644
--- 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;
+ picophy,pre-emp-curr-control = <3>;
+ picophy,dc-vol-level-adjust = <7>;
status = "okay";
port {
--
2.17.1
next prev parent reply other threads:[~2020-07-17 4:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-17 4:22 [PATCH v2 1/4] doc: dt-binding: ci-hdrc-usb2: add property for imx picophy Peter Chen
2020-07-17 4:22 ` [PATCH v2 2/4] usb: chipidea: imx: add two picophy parameters tuning implementation Peter Chen
2020-07-17 4:22 ` [PATCH v2 3/4] arm64: dts: imx8mm-evk: add two parameters for picophy tuning Peter Chen
2020-07-17 4:22 ` Peter Chen [this message]
2020-07-23 17:35 ` [PATCH v2 1/4] doc: dt-binding: ci-hdrc-usb2: add property for imx picophy Rob Herring
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