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 v3 4/4] arm64: dts: imx8mn-evk: add two parameters for samsung picophy tuning
Date: Fri, 24 Jul 2020 14:05:32 +0800 [thread overview]
Message-ID: <20200724060532.3878-4-peter.chen@nxp.com> (raw)
In-Reply-To: <20200724060532.3878-1-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 v3:
- Using the new property name
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..7453aec0a5fc 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;
+ samsung,picophy-pre-emp-curr-control = <3>;
+ samsung,picophy-dc-vol-level-adjust = <7>;
status = "okay";
port {
--
2.17.1
next prev parent reply other threads:[~2020-07-24 6:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-24 6:05 [PATCH v3 1/4] doc: dt-binding: ci-hdrc-usb2: add property for samsung picophy Peter Chen
2020-07-24 6:05 ` [PATCH v3 2/4] usb: chipidea: imx: add two samsung picophy parameters tuning implementation Peter Chen
2020-07-24 6:05 ` [PATCH v3 3/4] arm64: dts: imx8mm-evk: add two parameters for samsung picophy tuning Peter Chen
2020-08-21 1:39 ` Peter Chen
2020-08-22 3:31 ` Shawn Guo
2020-07-24 6:05 ` Peter Chen [this message]
2020-08-12 19:17 ` [PATCH v3 1/4] doc: dt-binding: ci-hdrc-usb2: add property for samsung picophy Rob Herring
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