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

[Rob Herring]

On 08/21/2012 07:08 AM, Arnd Bergmann wrote:
> 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.

This makes the most sense to me. However, I prefer broken-cd over
cd-internal. The binding should add properties for exceptions, not SDHCI
spec compliant implementations.

Rob