[PATCH] mmc: dt: Add 'broken-cd' DT binding

[Chris Ball]

Hi,

On Tue, Aug 21 2012, Thomas Abraham wrote:
> I am trying to have a way to represent a gpio line as card detect line
> that is not connected to the card-detect pad of the mmc controller but
> instead used as a gpio interrupt line or polled gpio line.
>
> 'broken-cd' would imply that the card-detect pad of the mmc controller
> is not connected to the card-detect pin at the slot. The 'cd-gpios'
> property in that case would let the driver code to use the 'cd-gpios'
> line as the external gpio interrupt or poll it.

How about this?

broken-cd: No CD available, use polling.

cd-gpios: The CD pin on the host is working and brought out to a GPIO.

external-cd-gpios: The CD pin on the host is broken, but there's an
                   independent external GPIO available.


(Each host should only have one of these properties.)
                   
Thanks,

- Chris.
-- 
Chris Ball   <cjb at laptop.org>   <http://printf.net/>
One Laptop Per Child