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Message-ID: <20220704121916.3156f644@bootlin.com>
Date:   Mon, 4 Jul 2022 12:19:16 +0200
From:   Herve Codina <herve.codina@...tlin.com>
To:     <Claudiu.Beznea@...rochip.com>
Cc:     <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <Nicolas.Ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>, <mturquette@...libre.com>,
        <sboyd@...nel.org>, <Horatiu.Vultur@...rochip.com>,
        <linux-usb@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v4 3/3] ARM: dts: lan966x: Add UDPHS support

Hi Claudiu,

On Mon, 4 Jul 2022 05:41:33 +0000
<Claudiu.Beznea@...rochip.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
> > 
> > Hi Claudiu,
> > 
> > On Fri, 1 Jul 2022 10:56:46 +0000
> > <Claudiu.Beznea@...rochip.com> wrote:
> >   
> >> On 01.07.2022 10:09, Herve Codina wrote:  
> >>> EXTERNAL EMAIL: Do not click links or open attachments unless you know 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@...tlin.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/lan966x.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@...c0000 {
> >>>                         reg = <0xe00c0000 0x350>;
> >>>                 };
> >>>
> >>> +               udc: usb@...08000 {
> >>> +                       compatible = "microchip,lan9662-udc",
> >>> +                                    "atmel,sama5d3-udc";
> >>> +                       reg = <0x00200000 0x80000>,
> >>> +                             <0xe0808000 0x400>;
> >>> +                       interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
> >>> +                       clocks = <&clks GCK_GATE_UDPHS>, <&nic_clk>;
> >>> +                       clock-names = "pclk", "hclk";
> >>> +                       status = "disabled";
> >>> +               };
> >>> +  
> >>
> >> 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@...08000: simple-bus unit address format error, expected "200000"
> >>   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@...08000: simple-bus unit address format error, expected "200000"
> >>   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@...08000: simple-bus unit address format error, expected "200000"  
> > 
> > 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 ?  
> 
> Oh, and the set of commands I'm using:
> make sama7_defconfig
> make menuconfig + enable CONFIG_SOC_LAN966
> make W=1 dtbs

I have the warnings.
They are present with 'W=1' set.

I remove them and send a v5.

Thanks,
Hervé

-- 
Hervé Codina, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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