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From: Wolfram Sang <w.sang@pengutronix.de>
To: Juergen Beisert <jbe@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 2/3] dma: apbh: check for errors when resetting ip core
Date: Wed, 31 Oct 2012 09:54:14 +0100	[thread overview]
Message-ID: <20121031085414.GC2582@pengutronix.de> (raw)
In-Reply-To: <201210310948.31441.jbe@pengutronix.de>


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On Wed, Oct 31, 2012 at 09:48:31AM +0100, Juergen Beisert wrote:
> Wolfram Sang wrote:
> > On Wed, Oct 31, 2012 at 09:29:56AM +0100, Juergen Beisert wrote:
> > > Wolfram Sang wrote:
> > > > Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
> > > > ---
> > > >  drivers/dma/apbh_dma.c |    4 +++-
> > > >  1 file changed, 3 insertions(+), 1 deletion(-)
> > > >
> > > > diff --git a/drivers/dma/apbh_dma.c b/drivers/dma/apbh_dma.c
> > > > index 363878f..d30b8fb 100644
> > > > --- a/drivers/dma/apbh_dma.c
> > > > +++ b/drivers/dma/apbh_dma.c
> > > > @@ -555,7 +555,9 @@ int mxs_dma_init(void)
> > > >  	int ret, channel;
> > > >  	u32 val, reg;
> > > >
> > > > -	mxs_reset_block(apbh_regs, 0);
> > > > +	ret = mxs_reset_block(apbh_regs, 0);
> > > > +	if (ret)
> > > > +		return ret;
> > >
> > > In this case the user faces a "MXS: Timeout resetting block via register
> > > ...". Do you think this message is helpful to give the user a pointer
> > > *where* the failure happens?
> >
> > Yes, since it points to the IP core which was used here. Which again,
> > makes clear which driver was trying to reset the IP core.
> 
> You mean the reported register offset points to the corresponding IP core?

Yes, sure. Otherwise the error message would be useless :)

> But also Barebox has more users than developers.

There is nothing a user could do in this case except asking a developer
what could have happened? And that's the best option here.

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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  reply	other threads:[~2012-10-31  8:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-30 14:21 [PATCH 1/3] arm: mxs: use timeouts in block reset routines Wolfram Sang
2012-10-30 14:21 ` [PATCH 2/3] dma: apbh: check for errors when resetting ip core Wolfram Sang
2012-10-31  8:29   ` Juergen Beisert
2012-10-31  8:36     ` Wolfram Sang
2012-10-31  8:48       ` Juergen Beisert
2012-10-31  8:54         ` Wolfram Sang [this message]
2012-10-31  9:29           ` Juergen Beisert
2012-10-31  9:39             ` Wolfram Sang
2012-10-30 14:21 ` [PATCH 3/3] mtd: nand: mxs: " Wolfram Sang
2012-10-31  7:37 ` [PATCH 1/3] arm: mxs: use timeouts in block reset routines Sascha Hauer

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