Instantiate the two system DMA controllers in the r8a7793 device tree.

Based on similar work for the r8a7793 by Laurent Pinchart.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Reviewed-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

Instantiate PFC device in r8a7793 DT.

Based on similar work for the r8a7791 by Magnus Damm.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Instantiate the thermal sensor in the r8a7793 device tree.

Based on very similar work for the r8a7790 by Magnus Damm.
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>

Add IPMMU nodes for the r8a7793 SoC. The IPMMU configuration for r8a7793
is identical to r8a7791 and includes SY0, SY1, DS, MP, MX, RT and GP.
Signed-off-by: NMagnus Damm <damm+renesas@opensource.se>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Add an appropriate "#power-domain-cells" property to the cpg_clocks
device node, to create the CPG/MSTP Clock Domain.

Add "power-domains" properties to all device nodes for devices that are
part of the CPG/MSTP Clock Domain and can be power-managed through an
MSTP clock.  This applies to most on-SoC devices, which have a
one-to-one mapping from SoC device to DT device node.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: NUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Replace the "arm,cortex-a15-gic" compatible value for the GIC by
"arm,gic-400", as the R-Car Gen2 GIC is assumed to be a GIC-400.
This has been confirmed by reading the GICD_IIDR register (on r8a7791),
which reports 0x0200043b (GIC-400 = 0x02, ARM = 0x43b).

This has no effect on runtime behavior, as currently the GIC driver
treats both compatible values the same.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>

Minimal r8a7793 device tree including one CPU core, interrupt controllers,
timers, two serial ports, and the Ethernet controller, plus the required
clock descriptions.
Signed-off-by: NUlrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: NSimon Horman <horms+renesas@verge.net.au>