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

[Arnd Bergmann]

On Tuesday 21 August 2012, Chris Ball wrote:
> 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.)

The fsl-imx-esdhc.txt binding already has all three cases, but
describes them differently:

fsl,cd-internal: when present, the CD pin on the host is working
cd-gpios: when present, contains the gpio line that CD is connected to
If both are absent, it has to use polling.

	Arnd