RE: [PATCH v1 8/9] usb: phy: dts: Adding usbphy DT bindings foram33xx

From: B, Ravi
Date: Fri May 24 2013 - 01:34:15 EST


Subject: Re: [PATCH v1 8/9] usb: phy: dts: Adding usbphy DT bindings for am33xx

Hello.

On 05/23/2013 09:13 PM, B, Ravi wrote:

>
>>> + phy1: usbphy-gs70@44e10620 {
>>> + compatible = "ti,dsps-usbphy";
>>> + reg = <0x44e10620 0x8
>>> + 0x44e10648 0x4>;
>>> + reg-names = "phy_ctrl","phy_wkup";
>>> + id = <0>;
>>> + };
>>> +
>>> + phy2: usbphy-gs70@44e10628 {
>>> + compatible = "ti,dsps-usbphy";
>>> + reg = <0x44e10628 0x8
>>> + 0x44e10648 0x4>;
>> The second register conflicts with phy1.
> The two instances of phy uses common phy wakeup register.

>> That's why there is a resource conflict. Have you actually tried to instantiate the devices out of such tree?
>>This register should be declared somewhere above the PHYs I think...

I did not face any problem with this, I have tested both instances of phy used by dual instance controller, worked fine.
What do you suggest, in case of common register which both phy have to use this for wakeup functionality.
The DT should support this. What do you suggest in such case?

--
Ravi B

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