linux-kernel - Re: [PATCH 1/2] leds: Add generic support for memory mapped LEDs

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Message-ID: <1352388952.20549.12.camel@hornet>
Date:	Thu, 08 Nov 2012 15:35:52 +0000
From:	Pawel Moll <pawel.moll@....com>
To:	Bryan Wu <cooloney@...il.com>, Richard Purdie <rpurdie@...ys.net>
Cc:	"linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 1/2] leds: Add generic support for memory mapped LEDs

Hi Bryan, Richard,

On Thu, 2012-11-01 at 17:58 +0000, Pawel Moll wrote:
> LEDs are often controlled by writing to memory mapped
> register. This patch adds:
> 
> 1. Generic functions for platform code and drivers to create
>    class device for LEDs controlled by arbitrary bit masks.
>    The control register value is read, modified by logic AND
>    and OR operations with respective mask and written back.
> 
> 2. A platform driver for simple use case when one or more LED
>    are controlled by consecutive bits in a register pointed
>    at by the platform device's memory resource. It can be
>    particularly useful for MFD cells being part of an other
>    device.
> 
> Signed-off-by: Pawel Moll <pawel.moll@....com>

It's just a friendly and polite nag - any thoughts or feelings about
this?

Cheers!

Paweł


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