Re: [PATCH 1/2] usb/host/Kconfig: ohci- / ehci-platform make sure PHY_GENERIC is available

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Hi Alan,

On 02/11/2014 05:56 PM, Alan Stern wrote:
> On Mon, 10 Feb 2014, Hans de Goede wrote:
> 
>> Disallow ohci- / ehci-platform being built-in, when the phy core is build as
>> a module.
>>
>> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
>> ---
>>  drivers/usb/host/Kconfig | 3 ++-
>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
>> index e28cbe0..1dd73e3 100644
>> --- a/drivers/usb/host/Kconfig
>> +++ b/drivers/usb/host/Kconfig
>> @@ -255,7 +255,7 @@ config USB_EHCI_ATH79
>>  
>>  config USB_EHCI_HCD_PLATFORM
>>  	tristate "Generic EHCI driver for a platform device"
>> -	depends on !PPC_OF
>> +	depends on !PPC_OF && (GENERIC_PHY || !GENERIC_PHY)
>>  	default n
>>  	---help---
>>  	  Adds an EHCI host driver for a generic platform device, which
> 
> Now that PPC_OF isn't an issue, you'll have to redo this patch.

Actually I've come up with what I believe is a much better fix, and it
does not touch the usb code at all. I had already put Greg in the CC
of that fix, but I forgot you, sorry about that, the better fix is here:

http://marc.info/?l=linux-arm-kernel&m=139213500427365&w=2

And it seems people like it:

http://marc.info/?l=linux-arm-kernel&m=139213733428268&w=2

So hopefully the phy-core maintainer will take it and we can do
without adding any deps to drivers/usb/host/Kconfig.

If this gets nacked I'll respin my second patch taking your
comments into account.

Thanks & Regards,

Hans




>  
> I'd like to see a comment accompanying the new dependency line,
> something like:
> 
> 	# Don't allow this driver to be built-in if the PHY core is a module
> 	depends on (GENERIC_PHY || !GENERIC_PHY)
> 
> Otherwise, nobody who reads this will understand what's going on.
> 
> Similarly, in the 2/2 patch, put the new dependencies on their own 
> lines along with a little explanation, such as:
> 
> 	depends on (GENERIC_PHY || !GENERIC_PHY)  # Needed for ehci-platform
> 
> Alan Stern
> 
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