linux-kernel - Re: [RFC] add pwmlib support

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Message-ID: <20110129215141.GA3493@pengutronix.de>
Date:	Sat, 29 Jan 2011 22:51:41 +0100
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	Jean Delvare <khali@...ux-fr.org>
Cc:	Sascha Hauer <s.hauer@...gutronix.de>,
	linux-kernel@...r.kernel.org, Eric Miao <eric.miao@...aro.org>,
	Ben Dooks <ben-linux@...ff.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Hemanth V <hemanthv@...com>,
	linux-arm-kernel@...ts.infradead.org,
	Uwe Kleine-Koenig <u.kleine-koenig@...gutronix.de>,
	Shawn Guo <shawn.guo@...escale.com>
Subject: Re: [RFC] add pwmlib support


> > code is inspired by gpiolib support and tested using the backlight pwm
							     ^^^^^^^^^
> So I believe that hwmon drivers are out of scope for pwmlib. Which
> makes me wonder what you intend to do with pwmlib (back to my first
> question...) as the only use I know of for PWM signals in computers is
> for fan control.

It was meant for backlight control (was mentioned very indirectly).
I also pointed him to Bill's implementation, too.

Regards,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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