From: Wolfram Sang <w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
To: Marek Vasut <marex-ynQEQJNshbs@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
"Shawn Guo" <shawn.guo-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
"Fabio Estevam"
<fabio.estevam-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
devicetree-discuss-mnsaURCQ41sdnm+yROfE0A@public.gmane.org,
"Wolfgang Denk" <wd-ynQEQJNshbs@public.gmane.org>,
"Detlev Zundel" <dzu-ynQEQJNshbs@public.gmane.org>,
"Stefano Babic" <sbabic-ynQEQJNshbs@public.gmane.org>,
"Sascha Hauer" <s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Uwe Kleine-König"
<u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
"Dong Aisheng" <b29396-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Subject: Re: [PATCH 2/2 V3] MXS: Implement DMA support into mxs-i2c
Date: Sat, 21 Jul 2012 17:41:53 +0200 [thread overview]
Message-ID: <20120721154153.GA25874@pengutronix.de> (raw)
In-Reply-To: <201207211611.58956.marex-ynQEQJNshbs@public.gmane.org>
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> > Yet, if I know the compatible property for the mxs I2C driver, and also
> > know the CPU type (be it MX23 or MX28), I can deduce from that a lot of
> > information, including DMA channel. That is fix. Why encode it?
>
> You know the compatible and the "fallback compatible". From the later one, you
> can deduce nothing if that happens to kick in.
Even if the driver was matched because of an MX23-I2C "compatible"
binding, both devicetree and runtime could provide data that it actually
runs on MX28. That shouldn't be a problem.
> btw. the PIO discussion on DT discuss is completely ignored. How shall we
> proceed, this driver is stalled for too long.
IIRC I mentioned that a discussion about the bindings won't make the
next merge window. That's why I proposed either module_parameter or
dropping the binding entirely as possible inbetween options.
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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next prev parent reply other threads:[~2012-07-21 15:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1341850974-11977-1-git-send-email-marex@denx.de>
[not found] ` <1341850974-11977-2-git-send-email-marex@denx.de>
[not found] ` <20120713082249.GF32184@pengutronix.de>
[not found] ` <20120715081715.GA2429@S2100-06.ap.freescale.net>
[not found] ` <20120715081715.GA2429-+NayF8gZjK2ctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-07-21 12:44 ` [PATCH 2/2 V3] MXS: Implement DMA support into mxs-i2c Wolfram Sang
[not found] ` <20120721124406.GA9946-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-07-21 14:11 ` Marek Vasut
[not found] ` <201207211611.58956.marex-ynQEQJNshbs@public.gmane.org>
2012-07-21 15:41 ` Wolfram Sang [this message]
[not found] ` <20120721154153.GA25874-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-07-21 15:54 ` Marek Vasut
[not found] ` <201207211754.29372.marex-ynQEQJNshbs@public.gmane.org>
2012-07-22 8:33 ` Wolfram Sang
2012-07-28 8:02 ` Shawn Guo
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