[U-Boot] [PATCH] mmc: dw_mmc: Handle pin voltage configuration

[Carlo Caione]

On Thu, 2018-06-07 at 12:00 +0100, Carlo Caione wrote:
> From: Carlo Caione <carlo at endlessm.com>
> 
> Add support for pin voltage configuration. Besides to support UHS
> mode
> this is useful when the IO lines are connected to a configurable
> regulator not enabled at boot or always on.
> 
> Signed-off-by: Carlo Caione <carlo at endlessm.com>

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