soc: renesas: rcar-rst: add R8A77970 support

Add support for R-Car V3M (R8A77970) to the R-Car RST driver -- this driver
is needed for the clock driver to work.

Signed-off-by: Sergei Shtylyov <[e-mail]>
Reviewed-by: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Simon Horman <[e-mail]>

Documentation/devicetree/bindings/reset/renesas,rst.txt

···
 		  - "renesas,r8a7794-rst" (R-Car E2)
 		  - "renesas,r8a7795-rst" (R-Car H3)
 		  - "renesas,r8a7796-rst" (R-Car M3-W)
+		  - "renesas,r8a77970-rst" (R-Car V3M)
 		  - "renesas,r8a77995-rst" (R-Car D3)
   - reg: Address start and address range for the device.
 

drivers/soc/renesas/Kconfig

···
 	default y if ARCH_RENESAS
 	select SOC_BUS
 	select RST_RCAR if ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || \
-			   ARCH_R8A7795 || ARCH_R8A7796 || ARCH_R8A77995
+			   ARCH_R8A7795 || ARCH_R8A7796 || ARCH_R8A77970 || \
+			   ARCH_R8A77995
 	select SYSC_R8A7743 if ARCH_R8A7743
 	select SYSC_R8A7745 if ARCH_R8A7745
 	select SYSC_R8A7779 if ARCH_R8A7779

drivers/soc/renesas/rcar-rst.c

···
 	/* R-Car Gen3 is handled like R-Car Gen2 */
 	{ .compatible = "renesas,r8a7795-rst", .data = &rcar_rst_gen2 },
 	{ .compatible = "renesas,r8a7796-rst", .data = &rcar_rst_gen2 },
+	{ .compatible = "renesas,r8a77970-rst", .data = &rcar_rst_gen2 },
 	{ .compatible = "renesas,r8a77995-rst", .data = &rcar_rst_gen2 },
 	{ /* sentinel */ }
 };