[U-Boot] [RFC 2/2] dm: mmc: implement pwrup function

[Simon Glass]

On 15 March 2016 at 19:32, Peng Fan <van.freenix at gmail.com> wrote:
> If vmmc-supply property is provided, then enable it.
> If vmmc-supply is not provided, just ignore it.
> For now, only fixed regulator is supported.
>
> In device tree:
> "
>                 reg_sd1_vmmc: regulator at 1 {
>                         compatible = "regulator-fixed";
>                         regulator-name = "VSD_3V3";
>                         regulator-min-microvolt = <3300000>;
>                         regulator-max-microvolt = <3300000>;
>                         gpio = <&gpio1 9 GPIO_ACTIVE_HIGH>;
>                         enable-active-high;
>                 };
>
> &usdhc1 {
>         pinctrl-names = "default", "state_100mhz", "state_200mhz";
>         pinctrl-0 = <&pinctrl_usdhc1>;
>         pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
>         pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
>         cd-gpios = <&gpio1 19 GPIO_ACTIVE_LOW>;
>         keep-power-in-suspend;
>         enable-sdio-wakeup;
>         vmmc-supply = <&reg_sd1_vmmc>;
>         status = "okay";
> };
> "
>
> Signed-off-by: Peng Fan <van.freenix at gmail.com>
> Cc: Pantelis Antoniou <panto at antoniou-consulting.com>
> Cc: Simon Glass <sjg at chromium.org>
> Cc: Eric Nelson <eric at nelint.com>
> Cc: York Sun <york.sun at nxp.com>
> Cc: Stefano Babic <sbabic at denx.de>
> Cc: Fabio Estevam <fabio.estevam at nxp.com>
> ---
>  drivers/mmc/fsl_esdhc.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)

Acked-by: Simon Glass <sjg at chromium.org>