From: u.kleine-koenig@pengutronix.de (Uwe Kleine-König)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] i2c: mxs: disable QUEUE when sending is done
Date: Sat, 28 Apr 2012 12:26:01 +0200 [thread overview]
Message-ID: <20120428102601.GO20039@pengutronix.de> (raw)
In-Reply-To: <CAOMZO5A1_Z7T5md61OJWmXbx2qCjFEByjyGvjhxqhfxzwfLEVQ@mail.gmail.com>
On Fri, Apr 27, 2012 at 11:51:56AM -0300, Fabio Estevam wrote:
> Hi Wolfram,
>
> On Fri, Apr 27, 2012 at 11:23 AM, Wolfram Sang <w.sang@pengutronix.de> wrote:
>
> > ? ? ? ?if (i2c->cmd_err == -ENXIO)
> > ? ? ? ? ? ? ? ?mxs_i2c_reset(i2c);
> > + ? ? ? else
> > + ? ? ? ? ? ? ? writel(MXS_I2C_QUEUECTRL_QUEUE_RUN,
> > + ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? i2c->regs + MXS_I2C_QUEUECTRL_CLR);
>
> When setting the QUEUE_RUN, do we really want to clear all the other
> bits of QUEUECTRL_CLR register?
>
> I am wondering if we should only set QUEUE_RUN bit here.
I didn't check the manual, but I guess writing to MXS_I2C_QUEUECTRL_CLR
just clears the QUEUE_RUN bit and nothing else?!
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-K?nig |
Industrial Linux Solutions | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2012-04-28 10:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-27 14:23 [PATCH] i2c: mxs: disable QUEUE when sending is done Wolfram Sang
2012-04-27 14:51 ` Fabio Estevam
2012-04-28 10:26 ` Uwe Kleine-König [this message]
2012-04-28 13:33 ` Marek Vasut
2012-04-29 8:43 ` Wolfram Sang
2012-04-29 9:11 ` Marek Vasut
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