[U-Boot] [U-Boot, v2, 08/10] rockchip: rk3399-puma: add boot-on regulator to override BIOS_DISABLE

[Philipp Tomsich]

> The (Qseven) BIOS_DISABLE signal on the RK3399-Q7 (Puma) keeps the
> eMMC and SPI in reset initially and we need to write a GPIO to turn
> them on before continuing the boot-up.
> 
> This adds the DTS entries for the additional regulator and makes
> pinctrl and gpio3 available during SPL.  It also adds a hook to the
> spl_board_init() to ensure that the regulator gets probed and enabled.
> 
> Signed-off-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> ---
> 
> Changes in v2:
> - ran 'whitespace-cleanup' on 'rk3399-puma.dtsi'
> 
>  arch/arm/dts/rk3399-puma.dtsi                     | 30 ++++++++++++++++++++---
>  board/theobroma-systems/puma_rk3399/puma-rk3399.c | 10 ++++++++
>  2 files changed, 36 insertions(+), 4 deletions(-)
> 

Applied to u-boot-rockchip, thanks!