From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: Update/include some functions from the Kernel
Date: Thu, 17 Jul 2014 11:29:07 +0200 [thread overview]
Message-ID: <53C79763.7050406@gmail.com> (raw)
In-Reply-To: <20140717053355.GI23235@pengutronix.de>
On 07/17/2014 07:33 AM, Sascha Hauer wrote:
> On Thu, Jul 17, 2014 at 01:15:33AM +0200, Sebastian Hesselbarth wrote:
>> On 07/15/2014 03:49 PM, Sascha Hauer wrote:
>>> This adds/updates some lowlevel bitmap/bitop stuff from the
>>> Kernel. Needed by upcoming USB updates.
>>
>> Sascha,
>>
>> just curious what "USB updates" there are?
>
> The updates are only USB core related, like turning the hub driver into
> a device and make fix up the USB device hierarchy. The other stuff is
> USB gadget specific: Update to v3.15 and composite gadget support
Ok, for the xHCI driver, I am about to bring up the ports. But AFAKT,
it will be basically fine to reuse the EHCI hub code. The way data is
sent later, is different from EHCI. I still have to dig into both xHCI
and EHCI code and specs to be sure about it.
BTW, if USB2.0 is a reasonable fallback for both, xHCI devices and HC,
I guess it should be fine to just support the 2.0 stuff.
Up to now, I already stumbled upon some legacy stuff (from u-boot?),
e.g. USB_SPEED defines vs enum, struct usb_{config,interface}_descriptor
collusion. I guess I can split-off some cleanup and preparation patches
from that after yours.
Sebastian
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next prev parent reply other threads:[~2014-07-17 9:29 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-15 13:49 Sascha Hauer
2014-07-15 13:49 ` [PATCH 1/5] include: Add DECLARE_BITMAP from kernel Sascha Hauer
2014-07-15 13:49 ` [PATCH 2/5] include: Add round_up/round_down macros " Sascha Hauer
2014-07-15 13:49 ` [PATCH 3/5] include: Add foreign endianess adding functions " Sascha Hauer
2014-07-15 13:49 ` [PATCH 4/5] lib: Add bitmap " Sascha Hauer
2014-07-15 13:49 ` [PATCH 5/5] include: update bitop " Sascha Hauer
2014-07-15 18:42 ` Update/include some functions from the Kernel Antony Pavlov
2014-07-16 8:27 ` Sascha Hauer
2014-07-16 23:15 ` Sebastian Hesselbarth
2014-07-17 5:33 ` Sascha Hauer
2014-07-17 9:29 ` Sebastian Hesselbarth [this message]
2014-07-17 12:41 ` Sascha Hauer
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