Linux on ARM based TI OMAP SoCs
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From: Felipe Balbi <balbi@ti.com>
To: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Felipe Balbi <balbi@ti.com>,
	w.sang@pengutronix.de, linux-i2c@vger.kernel.org,
	Linux OMAP Mailing List <linux-omap@vger.kernel.org>,
	Tony Lindgren <tony@atomide.com>
Subject: Re: [PATCH 5/6] i2c: omap: wait for transfer completion before sending STP bit
Date: Thu, 24 Jan 2013 09:35:25 +0200	[thread overview]
Message-ID: <20130124073525.GB27304@arwen.pp.htv.fi> (raw)
In-Reply-To: <20130123201031.GF23057@blackmetal.musicnaut.iki.fi>

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HI,

On Wed, Jan 23, 2013 at 10:10:31PM +0200, Aaro Koskinen wrote:
> Hi,
> 
> Some minor comments/questions:
> 
> On Wed, Jan 23, 2013 at 12:23:07PM +0200, Felipe Balbi wrote:
> > @@ -639,31 +630,37 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap,
> >  		dev_err(dev->dev, "controller timed out\n");
> >  		omap_i2c_reset(dev);
> >  		__omap_i2c_init(dev);
> > -		return -ETIMEDOUT;
> > +		ret = -ETIMEDOUT;
> > +		goto out;
> >  	}
> >  
> > -	if (likely(!dev->cmd_err))
> > -		return 0;
> > -
> >  	/* We have an error */
> >  	if (dev->cmd_err & (OMAP_I2C_STAT_AL | OMAP_I2C_STAT_ROVR |
> >  			    OMAP_I2C_STAT_XUDF)) {
> >  		omap_i2c_reset(dev);
> >  		__omap_i2c_init(dev);
> > -		return -EIO;
> > +		ret = -EIO;
> > +		goto out;
> 
> Why change return to goto on these paths? If you reset and re-initialize
> the controller, I think it's unlikely that omap_i2c_wait_for_ardy()
> will ever succeed?

good catch, I'll update.

-- 
balbi

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  reply	other threads:[~2013-01-24  7:35 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-12-14 16:34 [PATCH REBASE 0/6] i2c: omap: misc changes Felipe Balbi
2012-12-14 16:34 ` [PATCH REBASE 1/6] i2c: omap: no need to access platform_device Felipe Balbi
2012-12-14 16:34 ` [PATCH REBASE 3/6] i2c: omap: improve 'rev' a little bit Felipe Balbi
2012-12-14 16:34 ` [PATCH REBASE 6/6] i2c: omap: get rid of b_hw flag Felipe Balbi
     [not found] ` <1355502849-9289-1-git-send-email-balbi-l0cyMroinI0@public.gmane.org>
2012-12-14 16:34   ` [PATCH REBASE 2/6] i2c: omap: also complete() when stat becomes zero Felipe Balbi
2012-12-14 16:34   ` [PATCH REBASE 4/6] i2c: omap: in case of VERSION_2 read IRQSTATUS_RAW but write to IRQSTATUS Felipe Balbi
2012-12-14 16:34   ` [PATCH REBASE 5/6] i2c: omap: wait for transfer completion before sending STP bit Felipe Balbi
2013-01-14 19:16   ` [PATCH REBASE 0/6] i2c: omap: misc changes Felipe Balbi
     [not found]     ` <20130114191628.GB9402-S8G//mZuvNWo5Im9Ml3/Zg@public.gmane.org>
2013-01-23  9:58       ` Wolfram Sang
2013-01-23 10:23         ` [PATCH 0/6] i2c: deferred STP Felipe Balbi
2013-01-23 10:23           ` [PATCH 2/6] i2c: omap: also complete() when stat becomes zero Felipe Balbi
2013-01-24  9:05             ` Aaro Koskinen
2013-01-24  9:13               ` Felipe Balbi
     [not found]                 ` <20130124091339.GF27304-S8G//mZuvNWo5Im9Ml3/Zg@public.gmane.org>
2013-01-24  9:37                   ` Felipe Balbi
2013-01-24  9:56                 ` Aaro Koskinen
2013-01-23 10:23           ` [PATCH 3/6] i2c: omap: improve 'rev' a little bit Felipe Balbi
     [not found]           ` <1358936588-16375-1-git-send-email-balbi-l0cyMroinI0@public.gmane.org>
2013-01-23 10:23             ` [PATCH 1/6] i2c: omap: no need to access platform_device Felipe Balbi
2013-01-23 10:23             ` [PATCH 4/6] i2c: omap: in case of VERSION_2 read IRQSTATUS_RAW but write to IRQSTATUS Felipe Balbi
2013-01-23 10:23             ` [PATCH 5/6] i2c: omap: wait for transfer completion before sending STP bit Felipe Balbi
2013-01-23 20:10               ` Aaro Koskinen
2013-01-24  7:35                 ` Felipe Balbi [this message]
2013-01-24  7:42                   ` [PATCH 5/6 v2] " Felipe Balbi
2013-01-23 10:23             ` [PATCH 6/6] i2c: omap: get rid of b_hw flag Felipe Balbi
2013-01-23 20:05             ` [PATCH 0/6] i2c: deferred STP Aaro Koskinen
     [not found]               ` <20130123200540.GE23057-R3WNPi76c83LsdW6vOPryG4HOFkwEHDbMR2xtNvyitY@public.gmane.org>
2013-01-24 16:11                 ` Aaro Koskinen

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