linux-kernel - Re: [PATCH v2 3/4] arm: dts: Add USB phy nodes for AM33XX

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Date:	Fri, 19 Jul 2013 16:20:32 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
CC:	George Cherian <george.cherian@...com>, linux-usb@...r.kernel.org,
	balbi@...com, linux-kernel@...r.kernel.org,
	gregkh@...uxfoundation.org, linux-omap@...r.kernel.org,
	kishon@...com
Subject: Re: [PATCH v2 3/4] arm: dts: Add USB phy nodes for AM33XX

On 07/19/2013 03:56 PM, Sergei Shtylyov wrote:
> On 19-07-2013 16:34, George Cherian wrote:
> 
>> diff --git a/arch/arm/boot/dts/am33xx.dtsi
>> b/arch/arm/boot/dts/am33xx.dtsi
>> index 8e1248f..e3890c4 100644
>> --- a/arch/arm/boot/dts/am33xx.dtsi
>> +++ b/arch/arm/boot/dts/am33xx.dtsi
>> @@ -326,21 +326,59 @@
>>               status = "disabled";
>>           };
>>
>> -        usb@...00000 {
>> -            compatible = "ti,musb-am33xx";
>> -            reg = <0x47400000 0x1000    /* usbss */
>> -                   0x47401000 0x800        /* musb instance 0 */
>> -                   0x47401800 0x800>;    /* musb instance 1 */
>> -            interrupts = <17        /* usbss */
>> -                      18        /* musb instance 0 */
>> -                      19>;        /* musb instance 1 */
>> -            multipoint = <1>;
>> -            num-eps = <16>;
>> -            ram-bits = <12>;
>> -            port0-mode = <3>;
>> -            port1-mode = <3>;
>> -            power = <250>;
>> -            ti,hwmods = "usb_otg_hs";
>> +        phy1: am335x-usb0@...10620 {
> 
>    Shouldn't the PHYs be *under* the usb0/1 device nodes in the hierarchy?
> They're not on the same bus as the MUSB controllers for sure.

I redo the complete thing. I have now:

usb: usb@...00000 {
	compatible = "ti,am33xx-usb";
	
	usb0_phy: phy@...01300 {
		compatible = "ti,am335x-usb-phy";
	}
	usb0: usb@...01000 {
		musb0: usb@...01400 {
			compatible = "mg,musbmhdrc";
		}
	}
	usb1_phy: phy@...02300 {
		compatible = "ti,am335x-usb-phy";
	}
	usb1: usb@...02000 {
		musb1: usb@...02400 {
			compatible = "mg,musbmhdrc";
		}
	}
}

And you want usb0_phy to be child of usb0? In the TRM they are all in
the same block.

> 
> WBR, Sergei
> 

Sebastian
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