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

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Message-ID: <20191006025450.GO7150@dragon>
Date:   Sun, 6 Oct 2019 10:54:52 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Yinbo Zhu <yinbo.zhu@....com>, Li Yang <leoyang.li@....com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....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: Re: [PATCH v1] usb: dwc3: enable otg mode for dwc3 usb ip on
 layerscape

On Mon, Sep 09, 2019 at 05:02:44PM +0800, Yinbo Zhu wrote:
> 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>

The patch prefix should be something like: 'arm64: dts: ...'

@Leo, do you agree with the changes?

Shawn

> ---
>  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
>