From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Shawn Guo <shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: Dong Aisheng <dongas86-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org"
<devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org"
<rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>,
"kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org"
<kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
"cjb-2X9k7bc8m7Mdnm+yROfE0A@public.gmane.org"
<cjb-2X9k7bc8m7Mdnm+yROfE0A@public.gmane.org>,
"Sascha Hauer (s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org)"
<s.hauer-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: Pinmux bindings proposal V2
Date: Mon, 30 Jan 2012 09:43:23 -0800 [thread overview]
Message-ID: <20120130174323.GF9339@atomide.com> (raw)
In-Reply-To: <20120130021041.GB10470-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
* Shawn Guo <shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> [120129 17:27]:
> On Fri, Jan 27, 2012 at 09:16:53AM -0800, Tony Lindgren wrote:
> ...
> > I guess the analog we should follow here is clk_get and clk_set_rate,
> > except we would have pinconf_set_state with predefined states.
> >
> It seems working for cases that we only change pinconf but never pinmux
> for different configuration states. But how would that work for cases
> that require mux change for different configuration states?
I don't see why we should not allow changing the mux state with pinconf
too, after all it's the mux/pin that's locked, not the functionality of
the pin.
An example of this would be remuxing a shared UART line between rx and
tx. Those kind of cases could be defined as PMX_DIRECTION_INPUT and
PMX_DIRECTION_OUTPUT so driver could call Linux generic functions for
those if implemented.
Regards,
Tony
next prev parent reply other threads:[~2012-01-30 17:43 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-20 22:22 Pinmux bindings proposal V2 Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF1780DAB4CE-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-23 21:00 ` Tony Lindgren
[not found] ` <20120123210052.GS22818-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-23 23:08 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF178CB81C0D-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-24 1:20 ` Tony Lindgren
[not found] ` <20120124012038.GT22818-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-24 22:29 ` Stephen Warren
2012-01-25 0:04 ` Tony Lindgren
[not found] ` <20120125000407.GU22818-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-26 19:33 ` Stephen Warren
2012-01-27 2:08 ` Tony Lindgren
[not found] ` <20120127020832.GJ29812-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-27 6:57 ` Shawn Guo
[not found] ` <20120127065752.GB32740-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-01-27 17:05 ` Tony Lindgren
[not found] ` <20120127170545.GH13504-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-30 1:56 ` Shawn Guo
[not found] ` <20120130015607.GA10470-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-01-30 17:20 ` Tony Lindgren
2012-01-31 1:32 ` Shawn Guo
[not found] ` <20120131013215.GB24681-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-01-31 2:29 ` Tony Lindgren
[not found] ` <20120131022906.GH9339-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-02-01 5:36 ` Shawn Guo
2012-01-27 17:36 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF178E123E57-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-27 17:42 ` Tony Lindgren
2012-01-26 9:36 ` Shawn Guo
[not found] ` <20120126093610.GD2287-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-01-26 17:51 ` Tony Lindgren
[not found] ` <20120126175122.GX22818-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-27 7:19 ` Shawn Guo
[not found] ` <20120127071944.GC32740-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-01-27 17:16 ` Tony Lindgren
[not found] ` <20120127171653.GI13504-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-30 2:10 ` Shawn Guo
[not found] ` <20120130021041.GB10470-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-01-30 17:43 ` Tony Lindgren [this message]
[not found] ` <20120130174323.GF9339-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-31 1:07 ` Shawn Guo
2012-02-13 19:58 ` Stephen Warren
2012-01-26 9:24 ` Shawn Guo
2012-01-26 17:42 ` Simon Glass
[not found] ` <CAPnjgZ3Xhebn1x1A-Vdy78DWbDd=cp0AK6tL-R1SRzS4GdF97g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-01-27 2:21 ` Tony Lindgren
2012-01-27 15:43 ` Simon Glass
[not found] ` <CAPnjgZ2EkvTMsOkWyf4pfwRpvcvYs=WaKy5Gi8fdkAUQmvt=ig-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-01-27 17:37 ` Tony Lindgren
[not found] ` <20120127173732.GJ13504-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-27 17:51 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF178E123E62-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-27 18:10 ` Tony Lindgren
2012-01-30 3:27 ` Shawn Guo
2012-01-30 3:13 ` Shawn Guo
[not found] ` <20120130031346.GD10470-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-01-30 17:49 ` Tony Lindgren
[not found] ` <20120127022111.GK29812-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-01-27 17:38 ` Stephen Warren
2012-01-27 17:29 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF178E123E54-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-01-30 2:31 ` Shawn Guo
2012-02-01 14:35 ` Shawn Guo
[not found] ` <20120201143530.GA2203-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-02-02 18:36 ` Stephen Warren
[not found] ` <74CDBE0F657A3D45AFBB94109FB122FF178E124AC5-C7FfzLzN0UxDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-02-02 20:07 ` Dong Aisheng
2012-02-03 14:02 ` Shawn Guo
[not found] ` <20120203140238.GC12915-rvtDTF3kK1ictlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-02-03 17:21 ` Dong Aisheng
2012-02-03 17:32 ` Tony Lindgren
[not found] ` <20120203173205.GB1426-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2012-02-03 18:13 ` Dong Aisheng
2012-02-03 21:05 ` Tony Lindgren
2012-02-04 16:55 ` Dong Aisheng
[not found] ` <CAA+hA=ThTuGnedNk_KnYLpquZ7EG+b6yU+GSoiS8qiWUB=_0fw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-02-04 17:15 ` Tony Lindgren
2012-02-03 8:46 ` Shawn Guo
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