linux-kernel - [PATCH v1] usb: dwc3: enable otg mode for dwc3 usb ip on layerscape

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Date:   Mon,  9 Sep 2019 17:02:44 +0800
From:   Yinbo Zhu <yinbo.zhu@....com>
To:     Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     yinbo.zhu@....com, xiaobo.xie@....com, jiafei.pan@....com,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Ran Wang <ran.wang_1@....com>
Subject: [PATCH v1] usb: dwc3: 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>
---
 arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 2 +-
 arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 2 +-
 arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
index 7975519b4f56..5810d0400dbc 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
@@ -320,7 +320,7 @@
 			compatible = "fsl,ls1028a-dwc3", "snps,dwc3";
 			reg = <0x0 0x3110000 0x0 0x10000>;
 			interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
-			dr_mode = "host";
+			dr_mode = "otg";
 			snps,dis_rxdet_inp3_quirk;
 			snps,quirk-frame-length-adjustment = <0x20>;
 			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
index b0ef08b090dd..ecce6151b9b0 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi
@@ -582,7 +582,7 @@
 			compatible = "snps,dwc3";
 			reg = <0x0 0x3000000 0x0 0x10000>;
 			interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
-			dr_mode = "host";
+			dr_mode = "otg";
 			snps,quirk-frame-length-adjustment = <0x20>;
 			snps,dis_rxdet_inp3_quirk;
 			snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index dacd8cf03a7f..4b5413f7c90c 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -385,7 +385,7 @@
 			compatible = "snps,dwc3";
 			reg = <0x0 0x3110000 0x0 0x10000>;
 			interrupts = <0 81 IRQ_TYPE_LEVEL_HIGH>;
-			dr_mode = "host";
+			dr_mode = "otg";
 			snps,quirk-frame-length-adjustment = <0x20>;
 			snps,dis_rxdet_inp3_quirk;
 			status = "disabled";
-- 
2.17.1