linux-kernel - RE: [PATCH v2 3/3] arm64: dts: exynos: ExynosAutov920: Enable USB nodes

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Message-ID: <000e01dc8c3a$05fa3df0$11eeb9d0$@samsung.com>
Date: Fri, 23 Jan 2026 12:59:26 +0530
From: "Pritam Manohar Sutar" <pritam.sutar@...sung.com>
To: "'Krzysztof Kozlowski'" <krzk@...nel.org>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <alim.akhtar@...sung.com>
Cc: <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-samsung-soc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<rosa.pila@...sung.com>, <dev.tailor@...sung.com>, <faraz.ata@...sung.com>,
	<muhammed.ali@...sung.com>, <selvarasu.g@...sung.com>
Subject: RE: [PATCH v2 3/3] arm64: dts: exynos: ExynosAutov920: Enable USB
 nodes

Hi 

> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: 22 January 2026 07:05 PM
> To: Pritam Manohar Sutar <pritam.sutar@...sung.com>; robh@...nel.org;
> krzk+dt@...nel.org; conor+dt@...nel.org; alim.akhtar@...sung.com
> Cc: devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
> samsung-soc@...r.kernel.org; linux-kernel@...r.kernel.org;
> rosa.pila@...sung.com; dev.tailor@...sung.com;
> faraz.ata@...sung.com; muhammed.ali@...sung.com;
> selvarasu.g@...sung.com
> Subject: Re: [PATCH v2 3/3] arm64: dts: exynos: ExynosAutov920: Enable USB
> nodes
> 
> On 22/01/2026 14:07, Pritam Manohar Sutar wrote:
> > Enable USB PHY and DWC3 USB controllers' nodes.
> >
> > Signed-off-by: Pritam Manohar Sutar <pritam.sutar@...sung.com>
> > ---
> >  .../boot/dts/exynos/exynosautov920-sadk.dts   | 21
> +++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
> > b/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
> > index f90f7704597c..5896dd69334a 100644
> > --- a/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
> > +++ b/arch/arm64/boot/dts/exynos/exynosautov920-sadk.dts
> > @@ -160,15 +160,20 @@ &xtcxo {
> >  &usbdrd31_ssphy {
> >  	dvdd-supply = <&dummy_regulator>;
> >  	vdd18-supply = <&dummy_regulator>;
> > +	status = "okay";
> 
> You just added the node in the previous patch, so why it cant be enavled
> there?
> 
> >  };
> >
> >  &usbdrd31_hsphy {
> >  	dvdd-supply = <&dummy_regulator>;
> >  	vdd18-supply = <&dummy_regulator>;
> >  	vdd33-supply = <&dummy_regulator>;
> > +	status = "okay";
> >  };
> >
> >  &usbdrd31_dwc3 {
> > +	dr_mode = "otg";
> > +	usb-role-switch;
> > +	role-switch-default-mode = "peripheral";
> 
> Why did you add incomplete node in previous commit?
> 
> 
> Best regards,
> Krzysztof