arm64: dts: rockchip: Split rk3399-roc-pc for with and without mezzanine board.

For rk3399-roc-pc is a mezzanine board available that carries M.2 and
POE interfaces. Use it with a separate dts.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/0fb4e21a-fe78-00aa-6142-ca8682a913eb@fivetechno.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arm64: dts: rockchip: Rework voltage supplies for regulators on rk3399-roc-pc

Correct the voltage supplies according to the board schematics
ROC-3399-PC-V10-A-20180804.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Link: https://lore.kernel.org/r/22b56700-3c9e-0f60-cd74-7ff24d4f1a23@fivetechno.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arm64: dts: rockchip: Add vcc_sys enable pin on rk3399-roc-pc

rk3399-roc-pc has vcc_sys 5V supply for USB and other peripherals.
Add the GPIO pin to enable the regulator.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Link: https://lore.kernel.org/r/c72db0ad-c261-af4f-efe6-22bbcf4a0b7b@fivetechno.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arm64: dts: rockchip: Add nodes for buttons on rk3399-roc-pc

rk3399-roc-pc has a power and a recovery button, enable them.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Link: https://lore.kernel.org/r/1ce152cc-bd6b-63af-7892-221e084d087f@fivetechno.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arm64: dts: rockchip: Add LED nodes on rk3399-roc-pc

rk3399-roc-pc has three gpio LEDs, enable them.

Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Link: https://lore.kernel.org/r/7d8d85c9-5fde-7943-a6b6-639bca38bdc1@fivetechno.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arm64: dts: rockchip: Fix roc-rk3399-pc regulator input rails

Few, know rk808 pmic regulators VCC[1-4], VCC[6-7], VCC[9-11],
VDD_LOG, VDD_GPU, VDD_CPU_B, VCC3V3_SYS are inputting with vcc_sys
which is 5V power rail from dc_12v.

So, replace the vin-supply of above mentioned regulators
with vcc_sys as per the PMIC-RK808-D page of roc-rk3399-pc
schematics.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20190919052822.10403-7-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arm64: dts: rockchip: Rename vcc12v_sys into dc_12v for roc-rk3399-pc

It is always better practice to follow regulator naming conventions
as per the schematics for future references.

This would indeed helpful to review and check the naming convention
directly on schematics, both for the code reviewers and the developers.

So, rename vcc12v_sys into dc_12v as per rk3399 power tree as per
roc-rk3399-pc schematics.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20190919052822.10403-6-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arm64: dts: rockchip: add support for ROC-RK3399-PC board

ROC-RK3399-PC is a power efficient 4GB LPDDR4 single board
computer with USB 3.0 and Gigabit Ethernet in a form factor
compatible with the Raspberry Pi. It is based on the Rockchip
RK3399 SoC, powered by the Type-C port.

The devicetree currently supports peripherals of:

- Ethernet
- HDMI
- SD Card
- UART2 debug
- Type-C
- eMMC

USB3 in Type-C port currently only works with normal orientation,
not flip one.

Signed-off-by: Levin Du <djw@t-chip.com.cn>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>