Re: [PATCH 3/5] usb: common: introduce of_usb_get_maximum_speed()

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On 07/02/2013 10:10 AM, Felipe Balbi wrote:
> Hi,

Hi Felipe,

> On Tue, Jul 02, 2013 at 10:06:23AM +0200, Sebastian Andrzej Siewior
> wrote:
>> On 07/01/2013 09:18 AM, Felipe Balbi wrote:
>>> diff --git a/drivers/usb/usb-common.c
>>> b/drivers/usb/usb-common.c index 675384d..b87f202 100644 ---
>>> a/drivers/usb/usb-common.c +++ b/drivers/usb/usb-common.c
> uhm... this is usb-common.c

Oh.

>> This looks tricky. If you copy that property unconditionally than
>> you will end up with UNKNOWN speed if that property is missing
>> and no gadget will load, right? If so, maybe a second argument
>> would be nice
> 
> UDC should be required to treat UNKOWN as maximum-speed not being 
> passed and, thus, fixing it to the maximum the HW supports.
> 
>> which would be used as the default speed if none is found in DT.
>> Unless you want to do that check in each and every driver.
> 
> I don't mind either way although I find it funny to pass a
> 'default' argument which just gets returned back to the caller if
> maximum-speed isn't available.

Yeah. Never mind then.

> 

Sebastian
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