linux-kernel - RE: [PATCH v3] arm64: dts: enable otg mode for dwc3 usb ip on layerscape

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Message-ID: <VI1PR04MB41580274F127E4C4B85071DBE9900@VI1PR04MB4158.eurprd04.prod.outlook.com>
Date:   Mon, 14 Oct 2019 07:52:52 +0000
From:   Yinbo Zhu <yinbo.zhu@....com>
To:     Yinbo Zhu <yinbo.zhu@....com>, Shawn Guo <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
CC:     Xiaobo Xie <xiaobo.xie@....com>, Jiafei Pan <jiafei.pan@....com>,
        Ran Wang <ran.wang_1@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v3] arm64: dts: enable otg mode for dwc3 usb ip on
 layerscape

Hi Shawn Guo,

Please check this version code patch.

Thanks,
Regards,
Yinbo Zhu

-----Original Message-----
From: Yinbo Zhu <yinbo.zhu@....com> 
Sent: 2019年10月8日 10:57
To: Shawn Guo <shawnguo@...nel.org>; Leo Li <leoyang.li@....com>; Rob Herring <robh+dt@...nel.org>; Mark Rutland <mark.rutland@....com>
Cc: Yinbo Zhu <yinbo.zhu@....com>; Xiaobo Xie <xiaobo.xie@....com>; Jiafei Pan <jiafei.pan@....com>; Ran Wang <ran.wang_1@....com>; linux-arm-kernel@...ts.infradead.org; devicetree@...r.kernel.org; linux-kernel@...r.kernel.org
Subject: [PATCH v3] arm64: dts: enable otg mode for dwc3 usb ip on layerscape

layerscape otg function should be supported HNP SRP and ADP protocol accroing to rm doc, but dwc3 code not realize it and use id pin to detect who is host or device(0 is host 1 is device) this patch is to enable OTG mode on ls1028ardb ls1088ardb and ls1046ardb in dts

Signed-off-by: Yinbo Zhu <yinbo.zhu@....com>
---
Changed in v3:
		updated the patch title with "arm64: dts"

 arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts | 4 ++++  arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts | 4 ++++  arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts | 1 +
 3 files changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
index 9fb9113..076cac6 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-rdb.dts
@@ -171,3 +171,7 @@
 &sata {
 	status = "okay";
 };
+
+&usb1 {
+	dr_mode = "otg";
+};
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
index 6a6514d..0c742be 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts
@@ -122,6 +122,10 @@
 	};
 };
 
+&usb1 {
+	dr_mode = "otg";
+};
+
 #include "fsl-ls1046-post.dtsi"
 
 &fman0 {
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
index 8e925df..90b1989 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a-rdb.dts
@@ -95,5 +95,6 @@
 };
 
 &usb1 {
+	dr_mode = "otg";
 	status = "okay";
 };
--
2.9.5