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
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