[PATCH] gpio: New driver for GPO emulation using PWM generators

Peter Ujfalusi peter.ujfalusi at ti.com
Mon Nov 26 22:36:35 EST 2012


hi,

On 11/26/2012 11:30 AM, Lars-Peter Clausen wrote:
> The difference here is that the LED, backlight, etc are all different
> physical devices begin driven by the pwm pin, so it makes sense to have a
> device tree node for them, while using the pwm as gpio is just a different
> function of the same physical pin.  So in a sense the pwm controller also
> becomes a gpio controller. I like the idea of the pwm core automatically
> instantiating a pwm-gpo device if it sees a gpio-controller property in the
> pwm device devicetree node.

OK, fair enough. I will go with the plan I described in the first mail for the
GPIO use of PWM.

-- 
Péter


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