linux-kernel - Re: [PATCH 1/3] pinctrl: pinctrl-single: enhance to configure multiple pins of different modules

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Date:	Fri, 7 Jun 2013 11:20:39 +0200
From:	Linus Walleij <linus.walleij@...aro.org>
To:	"Manjunathappa, Prakash" <prakash.pm@...com>
Cc:	"Nori, Sekhar" <nsekhar@...com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Rob Landley <rob@...dley.net>,
	ext Tony Lindgren <tony@...mide.com>,
	Prabhakar Lad <prabhakar.csengg@...il.com>,
	Peter Ujfalusi <peter.ujfalusi@...com>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"davinci-linux-open-source@...ux.davincidsp.com" 
	<davinci-linux-open-source@...ux.davincidsp.com>
Subject: Re: [PATCH 1/3] pinctrl: pinctrl-single: enhance to configure
 multiple pins of different modules

On Tue, May 21, 2013 at 4:08 PM, Manjunathappa, Prakash
<prakash.pm@...com> wrote:

> Add support to configure multiple pins in each register, existing
> implementation added by [1] does not support full fledge multiple pin
> configuration in single register, reports a pin clash when different
> modules configure different bits of same register. The issue reported
> and discussed here
> http://www.spinics.net/lists/arm-kernel/msg235213.html
>
> With pinctrl-single,bits-per-mux property specified, use function-mask
> property to find out number pins to configure. Allocate and register
> pin control functions based sub mask.
>
> Tested on da850/omap-l138 EVM.
> does not support variable submask for pins.
> does not support pinconf.
>
> [1] "pinctrl: pinctrl-single: Add pinctrl-single,bits type of mux"
> (9e605cb68a21d5704839a192a46ebcf387773704),
>
> Signed-off-by: Manjunathappa, Prakash <prakash.pm@...com>
> Reported-by: Lad, Prabhakar <prabhakar.csengg@...il.com>
> Tested-by: Lad, Prabhakar <prabhakar.csengg@...il.com>

Patch applied with Haojian's and Tony's ACK.

Thanks!
Linus Walleij
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