On Sun, Sep 9, 2012 at 11:06 AM, Chris Ball <c...@laptop.org> wrote:
> Tested on OLPC XO-4/MMP3, where the card power for two of the
> controllers is a sideband GPIO.  The third cell in the power-gpios
> property controls whether the GPIO is active high/active low.
>
> (Also, pass host_caps2 through from platdata to the mmc host.)
>
> Signed-off-by: Chris Ball <c...@laptop.org>
> ---
> This patch depends on "mmc: slot-gpio: Add support for power gpios"
>
>  drivers/mmc/host/sdhci-pxav3.c          | 25 +++++++++++++++++++++++++
>  include/linux/platform_data/pxa_sdhci.h |  2 ++
>  2 files changed, 27 insertions(+)

Thanks Chris.
One questions is could we simply use fixed voltage regulator to control gpio?
And register this gpio as vmmc.

Thanks
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