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From: Peter Ujfalusi <peter.ujfalusi@ti.com>
To: Stephen Warren <swarren@wwwdotorg.org>
Cc: Tony Lindgren <tony@atomide.com>,
	device-tree <devicetree-discuss@lists.ozlabs.org>,
	Stephen Warren <swarren@nvidia.com>,
	LAK <linux-arm-kernel@lists.infradead.org>
Subject: Re: Query on pinctrl usage for DT nodes
Date: Tue, 16 Apr 2013 09:18:22 +0200	[thread overview]
Message-ID: <516CFB3E.8040703@ti.com> (raw)
In-Reply-To: <516C2D74.2090106@wwwdotorg.org>

On 04/15/2013 06:40 PM, Stephen Warren wrote:
> So, the solution here is for pinctrl-single to create a separate
> pin/group object for each separately controllable entity, and that may
> be each bit in a register rather than each register, depending on HW.

Exactly what I was thinking.
It would be ideal if we could do this dynamically, so when a new
pinctr-single,bits is added we create a new object (after checking for
overlapping bits from previous objects).
If this is not possible we should have new property telling pinctrl-single how
many objects to create for one physical register (used only when
pinctrl-single,bit-per-mux is defined), something like:

pinctrl-single,bit-per-mux;
pinctrl-single,functions-per-register = <X>;

For sure we need to check here as well for overlaps in the bitfields...

-- 
Péter

  reply	other threads:[~2013-04-16  7:18 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-03  9:16 Query on pinctrl usage for DT nodes Prabhakar Lad
     [not found] ` <CA+V-a8uiPwsAD--OHFAE=i2ed+-wbXm4p2deZXr92+Zv6GDS1w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-04-03 16:44   ` Stephen Warren
     [not found]     ` <515C5C76.3080009-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2013-04-03 18:38       ` Tony Lindgren
     [not found]         ` <20130403183803.GA10155-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2013-04-03 18:42           ` Tony Lindgren
2013-04-15  8:19             ` Peter Ujfalusi
     [not found]               ` <516BB818.3060603-l0cyMroinI0@public.gmane.org>
2013-04-15 16:40                 ` Stephen Warren
2013-04-16  7:18                   ` Peter Ujfalusi [this message]
2013-04-08 13:12       ` Prabhakar Lad
     [not found]         ` <CA+V-a8t3wtP77DdeUoQHKMjAuWmV+ude+1J3UjJmMTqobgStjA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-04-08 17:24           ` Stephen Warren
2013-04-10  8:12             ` Prabhakar Lad
2013-04-10 17:32               ` Stephen Warren
2013-04-10 20:34                 ` Tony Lindgren
2013-04-15  5:09                   ` Prabhakar Lad
2013-04-15  6:42                     ` Prabhakar Lad
2013-04-15  8:26                   ` Peter Ujfalusi
     [not found]                     ` <516BB99F.2080502-l0cyMroinI0@public.gmane.org>
2013-04-16 21:32                       ` Tony Lindgren
2013-04-23  7:42                         ` Peter Ujfalusi
     [not found]                           ` <51763B7B.707-l0cyMroinI0@public.gmane.org>
2013-04-23 18:17                             ` Tony Lindgren
     [not found]                               ` <20130423181753.GK10155-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2013-05-21 14:16                                 ` Manjunathappa, Prakash

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