From: "Ivan T. Ivanov" <ivan.ivanov@linaro.org>
To: Vivek Gautam <gautamvivek1987@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>,
Vivek Gautam <gautam.vivek@samsung.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
USB list <linux-usb@vger.kernel.org>,
Kernel development list <linux-kernel@vger.kernel.org>,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH] usb: ehci-msm: Don't ioremap configuration space exclusively
Date: Thu, 16 Apr 2015 10:42:19 +0300 [thread overview]
Message-ID: <1429170139.26621.3.camel@linaro.org> (raw)
In-Reply-To: <CAFp+6iHG92RdmAaNNMcJYgzi6kZP5sWirdx7GQoTU8eY1s7kVQ@mail.gmail.com>
Hi,
On Wed, 2015-04-15 at 21:28 +0530, Vivek Gautam wrote:
> On Thu, Apr 9, 2015 at 8:19 PM, Alan Stern <stern@rowland.harvard.edu> wrote:
> > On Thu, 9 Apr 2015, Ivan T. Ivanov wrote:
> >
> > > This allow same IO space to be shared between HCD and Device
> > > controller driver. Which can be loaded simultaneously and
> > > started/stopped on demand by USB OTG PHY driver.
>
> Are you sure ?
No.
> Will ehci controller registers overlap with the Device controller's register
> region ?
>
Well, not exactly DC vs HC region, but at least USB_AHBBURST, USB_AHBMODE,
USB_USBMODE are used by both OTG phy-msm-usb and this ehci-msm driver.
And this is broken right now.
Ivan
next prev parent reply other threads:[~2015-04-16 7:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-09 8:33 Ivan T. Ivanov
2015-04-09 14:49 ` Alan Stern
2015-04-15 15:58 ` Vivek Gautam
2015-04-16 7:42 ` Ivan T. Ivanov [this message]
2015-04-20 8:18 ` Ivan T. Ivanov
2015-04-20 14:14 ` Alan Stern
2015-04-20 15:55 ` Ivan T. Ivanov
2015-04-20 17:36 ` Alan Stern
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1429170139.26621.3.camel@linaro.org \
--to=ivan.ivanov@linaro.org \
--cc=gautam.vivek@samsung.com \
--cc=gautamvivek1987@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=stern@rowland.harvard.edu \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®