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

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Message-ID: <20140507171456.3124ec71@free-electrons.com>
Date:	Wed, 7 May 2014 17:14:56 +0200
From:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
To:	<balbi@...com>
Cc:	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

Dear Felipe Balbi,

On Wed, 7 May 2014 10:10:08 -0500, Felipe Balbi wrote:

> > 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.

In the end, I settled on keeping the tristate, and used your
suggestion. Because since xhci-plat itself is a blind option, and
xhci-mvebu selects it, if xhci-mvebu is a bool, there would no longer
be a way to have xhci-plat as a module. At least that's my
understanding of the kconfig stuff :)

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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