Re: [PATCH] arm: omap4: panda: remove usb_nop_xceiv_register

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Hi,

2011/1/5 Felipe Balbi <balbi@xxxxxx>:
> On Tue, Jan 04, 2011 at 04:29:04PM -0800, Kevin Hilman wrote:
>> tom.leiming@xxxxxxxxx writes:
>>
>> > From: Ming Lei <tom.leiming@xxxxxxxxx>
>> >
>> > Panda uses twl6030 otg phy instead of internal phy,
>
> This is wrong, it uses both. TWL6030 handles VBUS and ID pin
> and the internal PHY handles Data Lines. I know it's a bit
> crazy but this kind of design is becoming more and more usual
> on different boards.

I see now after your explanation.

>
> What truly needs to happen is that we allow for multiple PHYs
> to be added to otg_transceiver (BTW, that's a mis-naming as
> transceiver aren't only for OTG use-cases).
>
> Anyway, change this phrasing.
>
>> > so removes usb_nop_xceiv_register to make musb working.
>> >
>> > Cc: Felipe Balbi <balbi@xxxxxx>
>> > Signed-off-by: Ming Lei <tom.leiming@xxxxxxxxx>
>
> Considering you change the commit log above:
>
> Reviewed-by: Felipe Balbi <balbi@xxxxxx>
>
> This is ok, but can only go after 2.6.38 merge window. There are patches
> to add support for internal PHY. Ideally we would actually register both
> PHYs and it would work. They would have different capabilities, though.

The current otg only supports one global transceiver, so we have to remove
the nop on Panda.

thanks,
-- 
Lei Ming
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