From: David Miller <davem@davemloft.net>
To: mroos@linux.ee
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH] tms380tr: fix long delays in initialization
Date: Sun, 03 Oct 2010 20:01:09 -0700 (PDT) [thread overview]
Message-ID: <20101003.200109.226763463.davem@davemloft.net> (raw)
In-Reply-To: <alpine.SOC.1.00.1010032228450.28867@math.ut.ee>
From: Meelis Roos <mroos@linux.ee>
Date: Sun, 3 Oct 2010 22:34:30 +0300 (EEST)
> tms380tr driver tries to use udelay (meaning busy loop) for several half
> second delays during hardware initialization. Crazy overly long busy
> wait delays mean no delay at all so driver initialization fails without
> waiting. Fix it by using msleep() for long delays and leave it to
> udelay() for short delays.
>
> Signed-off-by: Meelis Roos <mroos@linux.ee>
You can't use msleep() here because this code can be invoked
from interrupts and thus cannot sleep.
next prev parent reply other threads:[~2010-10-04 3:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-03 19:34 [PATCH] tms380tr: fix long delays in initialization Meelis Roos
2010-10-04 3:01 ` David Miller [this message]
2010-10-04 8:39 ` Meelis Roos
2010-10-04 16:42 ` David Miller
2010-10-04 21:15 ` Meelis Roos
2010-10-04 21:33 ` David Miller
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