RE: [PATCH 1/2] ARM: vt8500: Update vt8500-ehci driver to support device tree.

From: Alexey Charkov [alchark-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org]
Sent: 20 July 2012 02:45
To: vt8500-wm8505-linux-kernel-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Cc: Arnd Bergmann; linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org; devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org; Tony Prisk
Subject: Re: [PATCH 1/2] ARM: vt8500: Update vt8500-ehci driver to support device tree.

2012/7/19 Tony Prisk [off-list ref]:

Signed-off-by: Tony Prisk <redacted>
---
 drivers/usb/host/ehci-vt8500.c |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

Have you tried to use ehci-platform on VIA/WMT devices? If it works
(which I would expect), I believe it's better to include OF support
into ehci-platform and drop ehci-vt8500 completely after existing
boards are converted to Device Tree. When writing ehci-vt8500, I
mostly only copied stuff from the PCI version and made it initialize
from the platform bus (nothing specific to vt8500).

Thanks,
Alexey

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The ehci-platform device requires platform_data be passed at probe.
While its generic enought , it puts requirements on the device-tree to setup
the private data, which would be messy to get approved I suspect.

Regards

Tony P