From: Shawn Guo <shawn.guo@linaro.org>
To: Dong Aisheng-B29396 <B29396@freescale.com>
Cc: Stephen Warren <swarren@nvidia.com>,
"linus.walleij@stericsson.com" <linus.walleij@stericsson.com>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"rob.herring@calxeda.com" <rob.herring@calxeda.com>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"cjb@laptop.org" <cjb@laptop.org>,
"Simon Glass (sjg@chromium.org)" <sjg@chromium.org>,
Dong Aisheng <dongas86@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"devicetree-discuss@lists.ozlabs.org"
<devicetree-discuss@lists.ozlabs.org>
Subject: Re: Pinmux bindings proposal
Date: Wed, 18 Jan 2012 12:47:18 +0800 [thread overview]
Message-ID: <20120118044716.GD563@S2101-09.ap.freescale.net> (raw)
In-Reply-To: <7FE21149F4667147B645348EC6057885093AD9@039-SN2MPN1-013.039d.mgd.msft.net>
On Wed, Jan 18, 2012 at 03:44:59AM +0000, Dong Aisheng-B29396 wrote:
...
> > > The real problem is do we need to support individual pin mux Or still
> > > using virtual pin group?
> > > For the way Stephen proposed, we can only support individual pin mux
> > > Since IMX pins are not grouped together in HW.
> > >
> > I do not see any problem here. If you look at the first column of 'mux'
> > property of node pinmux-usdhc1, it is a group of pins for usdhc1.
> > Isn't it one virtual pin group for usdhc1?
> >
> If we treat the whole pins in 'mux' property as a group,
> There may be potential inconsistent issue since Tegra will treat each
> One in the list of 'mux' as a group.
> And it would be a problem for pinctrl core to parse it in a standard way.
>
Based on my understanding, the 'group' given by 'mux' property may be
a group of pin/group defined by hardware, or mixing of the two.
--
Regards,
Shawn
next prev parent reply other threads:[~2012-01-18 4:36 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-13 20:39 Stephen Warren
2012-01-14 7:09 ` Shawn Guo
2012-01-17 18:47 ` Stephen Warren
2012-01-18 3:32 ` Shawn Guo
2012-01-18 19:00 ` Stephen Warren
2012-01-16 12:50 ` Dong Aisheng-B29396
2012-01-17 8:23 ` Shawn Guo
2012-01-17 9:46 ` Dong Aisheng-B29396
2012-01-17 14:13 ` Shawn Guo
2012-01-17 19:32 ` Stephen Warren
2012-01-18 3:44 ` Dong Aisheng-B29396
2012-01-18 4:47 ` Shawn Guo [this message]
2012-01-18 19:24 ` Stephen Warren
2012-01-17 19:28 ` Stephen Warren
2012-01-18 11:06 ` Dong Aisheng-B29396
2012-01-20 20:28 ` Stephen Warren
2012-01-27 12:00 ` Linus Walleij
2012-01-27 16:58 ` Stephen Warren
2012-01-17 19:21 ` Stephen Warren
2012-01-18 4:01 ` Shawn Guo
2012-01-18 9:32 ` Dong Aisheng-B29396
2012-01-17 19:09 ` Stephen Warren
2012-01-18 7:24 ` Dong Aisheng-B29396
2012-01-18 19:42 ` Stephen Warren
2012-01-16 18:28 ` Grant Likely
2012-01-18 14:13 ` Tony Lindgren
2012-01-18 14:30 ` Shawn Guo
2012-01-18 15:32 ` Tony Lindgren
2012-01-18 16:29 ` Tony Lindgren
2012-01-18 20:22 ` Grant Likely
2012-01-18 20:20 ` Grant Likely
2012-01-19 10:31 ` Tony Lindgren
2012-01-18 20:02 ` Stephen Warren
2012-01-19 10:57 ` Tony Lindgren
2012-01-20 20:50 ` Stephen Warren
2012-01-23 20:13 ` Tony Lindgren
2012-01-23 22:54 ` Stephen Warren
2012-01-27 13:11 ` Linus Walleij
2012-01-18 12:16 ` Thomas Abraham
2012-01-18 19:52 ` Stephen Warren
2012-01-19 17:01 ` Tony Lindgren
2012-01-19 13:10 ` Thomas Abraham
2012-01-19 16:56 ` Tony Lindgren
2012-01-19 17:38 ` Thomas Abraham
2012-01-19 18:20 ` Tony Lindgren
2012-01-19 18:38 ` Thomas Abraham
2012-01-20 10:05 ` Tony Lindgren
2012-01-20 16:17 ` Thomas Abraham
2012-01-20 17:53 ` Tony Lindgren
2012-01-21 1:38 ` Thomas Abraham
2012-01-20 21:15 ` Stephen Warren
2012-01-20 21:11 ` Stephen Warren
2012-01-21 1:27 ` Thomas Abraham
2012-01-23 22:43 ` Stephen Warren
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