linux-kernel - Re: [PATCH v3 06/20] usb: host: xhci-plat: Add support for the Armada 38x

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Date:	Wed, 7 May 2014 10:10:08 -0500
From:	Felipe Balbi <balbi@...com>
To:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
CC:	<balbi@...com>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	Mathias Nyman <mathias.nyman@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Lior Amsalem <alior@...vell.com>,
	Tawfik Bayouk <tawfik@...vell.com>,
	Nadav Haklai <nadavh@...vell.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3 06/20] usb: host: xhci-plat: Add support for the
 Armada 38x

On Wed, May 07, 2014 at 12:23:26PM +0200, Thomas Petazzoni wrote:
> Dear Felipe Balbi,
> 
> On Tue, 6 May 2014 10:39:53 -0500, Felipe Balbi wrote:
> 
> > >  config USB_EHCI_HCD
> > > diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
> > > index 7530468c9a4f..7a8db7f7dc01 100644
> > > --- a/drivers/usb/host/Makefile
> > > +++ b/drivers/usb/host/Makefile
> > > @@ -19,6 +19,7 @@ xhci-hcd-$(CONFIG_PCI)	+= xhci-pci.o
> > >  
> > >  ifneq ($(CONFIG_USB_XHCI_PLATFORM), )
> > >  	xhci-hcd-y		+= xhci-plat.o
> > > +	xhci-hcd-$(CONFIG_USB_XHCI_MVEBU)	+= xhci-mvebu.o
> > 
> > hmm, this has the potential of resulting in:
> > 
> > 	xhci-hcd-m += xhci-mvebu.o
> > 
> > I guess it's best to turn this into:
> > 
> > ifneq ($(CONFIG_USB_XHCI_PLATFORM), )
> > 	xhci-hcd-y += xhci-mvebu.o
> > endif
> 
> I guess you meant:
> 
> ifneq ($(CONFIG_USB_XHCI_MVEBU), )
> 	xhci-hcd-y += xhci-mvebu.o
> endif
> 
> Right?

correct :-)

> If so, then what about instead making CONFIG_USB_XHCI_MVEBU a bool
> instead of a tristate? It's more an option for the xhci-platform
> driver than an additional separate module, IMO. What do you think?

fine by me too. It simply adds a quirk callback to xhci-plat.

-- 
balbi

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