Received-SPF: pass (google.com: domain of linux-kernel+bounces-192313-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1;
Date: Tue, 28 May 2024 18:07:43 +0530
From: Siddharth Vadapalli <s-vadapalli@ti.com>
To: Roger Quadros <rogerq@kernel.org>
CC: Siddharth Vadapalli <s-vadapalli@ti.com>, <nm@ti.com>, <vigneshr@ti.com>,
        <afd@ti.com>, <kristo@kernel.org>, <robh@kernel.org>,
        <krzk+dt@kernel.org>, <conor+dt@kernel.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>, <u-kumar1@ti.com>,
        <danishanwar@ti.com>, <srk@ti.com>
Subject: Re: [PATCH v3 2/7] arm64: dts: ti: k3-j722s-main: Redefine USB1 node
 description
Message-ID: <ae766f18-3b56-4667-837b-eb51694106a4@ti.com>
References: <20240524090514.152727-1-s-vadapalli@ti.com>
 <20240524090514.152727-3-s-vadapalli@ti.com>
 <f52d9569-a399-422f-9cf0-b0bf69b64d18@kernel.org>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Disposition: inline
In-Reply-To: <f52d9569-a399-422f-9cf0-b0bf69b64d18@kernel.org>

On Tue, May 28, 2024 at 03:15:53PM +0300, Roger Quadros wrote:
> 
> 
> On 24/05/2024 12:05, Siddharth Vadapalli wrote:
> > From: Ravi Gunasekaran <r-gunasekaran@ti.com>
> > 
> > USB1 controller on J722S and AM62P are from different vendors.
> > Redefine the USB1 node description for J722S by deleting the
> > node inherited from AM62P dtsi.
> > 
> > Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
> > Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
> > ---
> > v2:
> > https://lore.kernel.org/r/20240513114443.16350-3-r-gunasekaran@ti.com/
> > No changes since v2.
> > 
> > v1:
> > https://lore.kernel.org/r/20240429120932.11456-3-r-gunasekaran@ti.com/
> > Changes since v1:
> > - The entire node which was added in k3-j722s.dtsi in v1 in now moved to
> >   k3-j722s-main.dtsi as USB is a main domain peripheral.
> > - Used generic node names - renamed "cdns-usb@f920000" to "usb@f920000".
> > 
> >  arch/arm64/boot/dts/ti/k3-j722s-main.dtsi | 39 +++++++++++++++++++++++
> >  1 file changed, 39 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
> > index 0dac8f1e1291..b069cecebfd9 100644
> > --- a/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
> > +++ b/arch/arm64/boot/dts/ti/k3-j722s-main.dtsi
> > @@ -6,6 +6,13 @@
> >  
> >  #include <dt-bindings/phy/phy-ti.h>
> >  
> > +/*
> > + * USB1 controller on AM62P and J722S are of different IP.
> > + * Delete AM62P's USBSS1 node definition and redefine it for J722S.
> > + */
> > +
> > +/delete-node/ &usbss1;
> > +
> 
> This is odd and indicates issues with current DT file inclusion.
> We need to split out the non common IPs (e.g. USB) out of the common k3-am62p-main.dtsi file Maybe call it k3-am62-main-common.dtsi.
> Only keep am62p specific stuff in k3-am62p-main.dtsi.
> 
> Include k3-am62-main-common.dtsi and k3-am62p-main.dtsi for AM62P
> Include k3-am62-main-common.dtsi and k3-j722s-main.dtsi for J722S
> 
> This way you don't need to call /delete-node/

Ok. I will move the common nodes between k3-am62p-main.dtsi and
k3-j722s-main.dtsi to "k3-am62p-j722s-common.dtsi".

Regards,
Siddharth.