From: Greg KH <greg@kroah.com>
To: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Cc: linux-usb@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v3] powerpc/usb: fix bug of CPU hang when missing USB PHY clock
Date: Fri, 21 Sep 2012 09:43:42 -0700 [thread overview]
Message-ID: <20120921164342.GA31272@kroah.com> (raw)
In-Reply-To: <1347958359-20153-1-git-send-email-Shengzhou.Liu@freescale.com>
On Tue, Sep 18, 2012 at 04:52:39PM +0800, Shengzhou Liu wrote:
> when missing USB PHY clock, kernel booting up will hang during USB
> initialization. We should check USBGP[PHY_CLK_VALID] bit to avoid
> CPU hanging in this case.
>
> Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
> ---
> v3 change: no check for UTMI PHY.
> v2 change: use spin_event_timeout() instead.
>
> drivers/usb/host/ehci-fsl.c | 57 +++++++++++++++++++++++++++++-------------
> drivers/usb/host/ehci-fsl.h | 1 +
> include/linux/fsl_devices.h | 1 +
> 3 files changed, 41 insertions(+), 18 deletions(-)
This is already applied, right?
greg k-h
next prev parent reply other threads:[~2012-09-21 19:47 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-18 8:52 [PATCH v3] powerpc/usb: fix bug of CPU hang when missing USB PHY clock Shengzhou Liu
2012-09-21 16:43 ` Greg KH [this message]
2012-09-22 14:39 ` Kumar Gala
2012-09-22 14:48 ` Greg KH
2012-09-24 14:44 ` Liu Shengzhou-B36685
2012-09-24 17:27 ` Greg KH
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=20120921164342.GA31272@kroah.com \
--to=greg@kroah.com \
--cc=Shengzhou.Liu@freescale.com \
--cc=linux-usb@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.