pinctrl: sh-pfc: Add R8A77970 PFC support

Add the PFC support for the R8A77970 SoC including pin groups for some
on-chip devices such as CAN-FD, [H]SCIF, I2C, INTC-EX, MMC, MSIOF, PWM,
VIN...

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
[geert: Drop EtherAVB for now]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Documentation/devicetree/bindings/pinctrl/renesas,pfc-pinctrl.txt

@@ -24,6 +24,7 @@ Required Properties:
     - "renesas,pfc-r8a7794": for R8A7794 (R-Car E2) compatible pin-controller.
     - "renesas,pfc-r8a7795": for R8A7795 (R-Car H3) compatible pin-controller.
     - "renesas,pfc-r8a7796": for R8A7796 (R-Car M3-W) compatible pin-controller.
+    - "renesas,pfc-r8a77970": for R8A77970 (R-Car V3M) compatible pin-controller.
     - "renesas,pfc-r8a77995": for R8A77995 (R-Car D3) compatible pin-controller.
     - "renesas,pfc-sh73a0": for SH73A0 (SH-Mobile AG5) compatible pin-controller.
 

drivers/pinctrl/sh-pfc/Kconfig

@@ -89,6 +89,11 @@ config PINCTRL_PFC_R8A7796
         depends on ARCH_R8A7796
         select PINCTRL_SH_PFC
 
+config PINCTRL_PFC_R8A77970
+	def_bool y
+	depends on ARCH_R8A77970
+	select PINCTRL_SH_PFC
+
 config PINCTRL_PFC_R8A77995
         def_bool y
         depends on ARCH_R8A77995

drivers/pinctrl/sh-pfc/Makefile

@@ -16,6 +16,7 @@ obj-$(CONFIG_PINCTRL_PFC_R8A7794)	+= pfc-r8a7794.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7795)	+= pfc-r8a7795.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7795)	+= pfc-r8a7795-es1.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7796)	+= pfc-r8a7796.o
+obj-$(CONFIG_PINCTRL_PFC_R8A77970)	+= pfc-r8a77970.o
 obj-$(CONFIG_PINCTRL_PFC_R8A77995)	+= pfc-r8a77995.o
 obj-$(CONFIG_PINCTRL_PFC_SH7203)	+= pfc-sh7203.o
 obj-$(CONFIG_PINCTRL_PFC_SH7264)	+= pfc-sh7264.o

drivers/pinctrl/sh-pfc/core.c

@@ -557,6 +557,12 @@ static const struct of_device_id sh_pfc_of_table[] = {
 		.data = &r8a7796_pinmux_info,
 	},
 #endif
+#ifdef CONFIG_PINCTRL_PFC_R8A77970
+	{
+		.compatible = "renesas,pfc-r8a77970",
+		.data = &r8a77970_pinmux_info,
+	},
+#endif
 #ifdef CONFIG_PINCTRL_PFC_R8A77995
 	{
 		.compatible = "renesas,pfc-r8a77995",