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Date:   Mon, 4 Jul 2022 12:19:16 +0200
From:   Herve Codina <herve.codina@bootlin.com>
To:     <Claudiu.Beznea@microchip.com>
Cc:     <gregkh@linuxfoundation.org>, <robh+dt@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <Nicolas.Ferre@microchip.com>,
        <alexandre.belloni@bootlin.com>, <mturquette@baylibre.com>,
        <sboyd@kernel.org>, <Horatiu.Vultur@microchip.com>,
        <linux-usb@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <linux-clk@vger.kernel.org>,
        <thomas.petazzoni@bootlin.com>
Subject: Re: [PATCH v4 3/3] ARM: dts: lan966x: Add UDPHS support
Message-ID: <20220704121916.3156f644@bootlin.com>
In-Reply-To: <32790e6f-e708-ceee-e17f-1b09c909c991@microchip.com>
References: <20220701070928.459135-1-herve.codina@bootlin.com>
        <20220701070928.459135-4-herve.codina@bootlin.com>
        <72a1e572-45d7-de18-8f1f-9035d75b562b@microchip.com>
        <20220701160327.102880e5@bootlin.com>
        <32790e6f-e708-ceee-e17f-1b09c909c991@microchip.com>
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Hi Claudiu,

On Mon, 4 Jul 2022 05:41:33 +0000
<Claudiu.Beznea@microchip.com> wrote:

> On 01.07.2022 17:03, Herve Codina wrote:
> > EXTERNAL EMAIL: Do not click links or open attachments unless you know =
the content is safe
> >=20
> > Hi Claudiu,
> >=20
> > On Fri, 1 Jul 2022 10:56:46 +0000
> > <Claudiu.Beznea@microchip.com> wrote:
> >  =20
> >> On 01.07.2022 10:09, Herve Codina wrote: =20
> >>> EXTERNAL EMAIL: Do not click links or open attachments unless you kno=
w the content is safe
> >>>
> >>> Add UDPHS (the USB High Speed Device Port controller) support.
> >>>
> >>> The both lan966x SOCs (LAN9662 and LAN9668) have the same UDPHS
> >>> IP. This IP is also the same as the one present in the SAMA5D3
> >>> SOC.
> >>>
> >>> Signed-off-by: Herve Codina <herve.codina@bootlin.com>
> >>> ---
> >>>  arch/arm/boot/dts/lan966x.dtsi | 11 +++++++++++
> >>>  1 file changed, 11 insertions(+)
> >>>
> >>> diff --git a/arch/arm/boot/dts/lan966x.dtsi b/arch/arm/boot/dts/lan96=
6x.dtsi
> >>> index 3cb02fffe716..c98e7075c2b4 100644
> >>> --- a/arch/arm/boot/dts/lan966x.dtsi
> >>> +++ b/arch/arm/boot/dts/lan966x.dtsi
> >>> @@ -458,6 +458,17 @@ cpu_ctrl: syscon@e00c0000 {
> >>>                         reg =3D <0xe00c0000 0x350>;
> >>>                 };
> >>>
> >>> +               udc: usb@e0808000 {
> >>> +                       compatible =3D "microchip,lan9662-udc",
> >>> +                                    "atmel,sama5d3-udc";
> >>> +                       reg =3D <0x00200000 0x80000>,
> >>> +                             <0xe0808000 0x400>;
> >>> +                       interrupts =3D <GIC_SPI 76 IRQ_TYPE_LEVEL_HIG=
H>;
> >>> +                       clocks =3D <&clks GCK_GATE_UDPHS>, <&nic_clk>;
> >>> +                       clock-names =3D "pclk", "hclk";
> >>> +                       status =3D "disabled";
> >>> +               };
> >>> + =20
> >>
> >> I have these compilation warnings:
> >>
> >>   DTC     arch/arm/boot/dts/lan966x-pcb8291.dtb
> >> arch/arm/boot/dts/lan966x.dtsi:461.21-470.5: Warning (simple_bus_reg):
> >> /soc/usb@e0808000: simple-bus unit address format error, expected "200=
000"
> >>   DTC     arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-6g-2gs.dtb
> >> arch/arm/boot/dts/lan966x.dtsi:461.21-470.5: Warning (simple_bus_reg):
> >> /soc/usb@e0808000: simple-bus unit address format error, expected "200=
000"
> >>   DTC     arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-8g.dtb
> >> arch/arm/boot/dts/lan966x.dtsi:461.21-470.5: Warning (simple_bus_reg):
> >> /soc/usb@e0808000: simple-bus unit address format error, expected "200=
000" =20
> >=20
> > I am a bit confused but these warnings do not appear on my side (patches
> > based on v5.19-rc1).
> > What is the exact command that leads to these warning ? =20
>=20
> Oh, and the set of commands I'm using:
> make sama7_defconfig
> make menuconfig + enable CONFIG_SOC_LAN966
> make W=3D1 dtbs

I have the warnings.
They are present with 'W=3D1' set.

I remove them and send a v5.

Thanks,
Herv=C3=A9

--=20
Herv=C3=A9 Codina, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com