[RFC] add pwmlib support

[Wolfram Sang]

> > 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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