netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Richard Cochran <richardcochran@gmail.com>
To: Shawn Guo <shawn.guo@freescale.com>
Cc: Fugang Duan <B38611@freescale.com>,
	linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org,
	Frank Li <Frank.li@freescale.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: Re: FEC driver hangs hardware on i.MX6SX
Date: Sun, 20 Jul 2014 08:20:49 +0200	[thread overview]
Message-ID: <20140720062048.GB5686@netboy> (raw)
In-Reply-To: <20140720025732.GF8537@dragon>

On Sun, Jul 20, 2014 at 10:57:33AM +0800, Shawn Guo wrote:
> 
> I think the cause is that PTP is still accessing registers after FEC
> driver calls fec_enet_clk_enable(ndev, false) to disable FEC clocks.
> Can you please try to provide a fix for this regression soon?

What do you mean by, "PTP is still accessing registers"?

The only access to any register is through the driver, and the driver
can and should make sure all register accesses are safe.

Thanks,
Richard

  reply	other threads:[~2014-07-20  6:21 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-20  2:57 FEC driver hangs hardware on i.MX6SX Shawn Guo
2014-07-20  6:20 ` Richard Cochran [this message]
2014-07-21  1:59   ` Shawn Guo
2014-07-21  2:13     ` fugang.duan
2014-07-20  8:06 ` fugang.duan

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=20140720062048.GB5686@netboy \
    --to=richardcochran@gmail.com \
    --cc=B38611@freescale.com \
    --cc=Frank.li@freescale.com \
    --cc=davem@davemloft.net \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=netdev@vger.kernel.org \
    --cc=shawn.guo@freescale.com \
    /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;
as well as URLs for NNTP newsgroup(s).