[PATCH 2/2] mmc: add no-1-8-v device tree flag

[Chris Ball]

Hi,

On Sun, Nov 25 2012, Daniel Drake wrote:
> The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v
> capable, and it truthfully reports so in its capabilities. This
> alternate voltage is used for driving new "UHS-I" SD cards at their
> full speed.
>
> However, what the controller doesn't know is that the motherboard
> physically doesn't have a 1.8v supply available, so attempting to
> switch to the 1.8v level will result in a situation that cannot be
> recovered from without physically replugging the SD card.
>
> Add a device tree flag that can be used on systems like these,
> and hook it up to the equivalent SDHCI quirk.
>
> Signed-off-by: Daniel Drake <dsd at laptop.org>

Thanks, pushed to mmc-next for 3.8.

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