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Message-ID: <Pine.LNX.4.44L0.1402211037300.1273-100000@iolanthe.rowland.org>
Date: Fri, 21 Feb 2014 10:41:50 -0500 (EST)
From: Alan Stern <stern@...land.harvard.edu>
To: Alistair Popple <alistair@...ple.id.au>
cc: gregkh@...uxfoundation.org, <linux-usb@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linuxppc-dev@...ts.ozlabs.org>
Subject: Re: [PATCH 4/7] ECHI Platform: Merge ppc-of EHCI driver into the
ehci-platform driver
On Fri, 21 Feb 2014, Alistair Popple wrote:
> Currently the ppc-of driver uses the compatibility string
> "usb-ehci". This means platforms that use device-tree and implement an
> EHCI compatible interface have to either use the ppc-of driver or add
> a compatible line to the ehci-platform driver. It would be more
> appropriate for the platform driver to be compatible with "usb-ehci"
> as non-powerpc platforms are also beginning to utilise device-tree.
>
> This patch merges the device tree property parsing from ehci-ppc-of
> into the platform driver and adds a "usb-ehci" compatibility
> string. The existing ehci-ppc-of driver is removed and the 440EPX
> specific quirks are added to the ehci-platform driver.
>
> Signed-off-by: Alistair Popple <alistair@...ple.id.au>
This patch is also out of date. The compatibility string used by the
ehci-platform driver is "generic-ehci".
There remains the question of whether to merge ehci-ppc-of into
ehci-platform. This would be a rather invasive change, but I suppose
we could do it. With adjustments along the lines suggested by Mark
Rutland.
Alan Stern
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