[PATCH 1/2] ARM:MX28: Add additionnal muxing options to iMX28 DTSI

[thomas.petazzoni@free-electrons.com (Thomas Petazzoni)]

Hello Shawn,

Le Mon, 25 Jun 2012 23:50:49 +0800,
Shawn Guo <shawn.guo@linaro.org> a ?crit :

> then, pinctrl system will be able to report there are 2 pin groups for
> function "duart" in debugfs.

Ah nice, this explains why the mxs pinctrl driver creates a separate
group for each pinctrl DT subnode, but only creates a new function when
the name changes.

However, how would the mxs pinctrl driver handle the following case:

	pinctrl {
		duart_pins_a: duart at 0 {
			...
		}
		something_pins: something at 0 {
			...
		}
		duart_pins_b: duart at 1 {
			...
		}
	}

Reading the driver code, I have the feeling that the logic that creates
the functions will only work if the different groups for a given
function are given as consecutive subnodes in the DT. Is this correct?

Regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com