pinctrl: renesas: Enable R8A774A1 PFC tables

The PFC tables for the R8A774A1 are already available, but they
not enabled.

This patch adds the Kconfig option and builds the corresponding file
when PINCTRL_PFC_R8A774A1 is enabled.

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/drivers/pinctrl/renesas/Kconfig b/drivers/pinctrl/renesas/Kconfig
index 4d3d68d..8327bca 100644
--- a/drivers/pinctrl/renesas/Kconfig
+++ b/drivers/pinctrl/renesas/Kconfig
@@ -77,6 +77,16 @@
 	  the GPIO definitions and pin control functions for each available
 	  multiplex function.
 
+config PINCTRL_PFC_R8A774A1
+        bool "Renesas RCar Gen3 R8A774A1 pin control driver"
+        depends on PINCTRL_PFC
+        help
+          Support pin multiplexing control on Renesas RZG2M R8A774A1 SoCs.
+
+          The driver is controlled by a device tree node which contains both
+          the GPIO definitions and pin control functions for each available
+          multiplex function.
+
 config PINCTRL_PFC_R8A77965
 	bool "Renesas RCar Gen3 R8A77965 pin control driver"
 	depends on PINCTRL_PFC
diff --git a/drivers/pinctrl/renesas/Makefile b/drivers/pinctrl/renesas/Makefile
index a92f787..a4eb912 100644
--- a/drivers/pinctrl/renesas/Makefile
+++ b/drivers/pinctrl/renesas/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_PINCTRL_PFC) += pfc.o
+obj-$(CONFIG_PINCTRL_PFC_R8A774A1) += pfc-r8a7796.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7790) += pfc-r8a7790.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7791) += pfc-r8a7791.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7792) += pfc-r8a7792.o
diff --git a/drivers/pinctrl/renesas/pfc.c b/drivers/pinctrl/renesas/pfc.c
index 1179afd..7ba7849 100644
--- a/drivers/pinctrl/renesas/pfc.c
+++ b/drivers/pinctrl/renesas/pfc.c
@@ -32,6 +32,7 @@
 	SH_PFC_R8A7794,
 	SH_PFC_R8A7795,
 	SH_PFC_R8A7796,
+	SH_PFC_R8A774A1,
 	SH_PFC_R8A77965,
 	SH_PFC_R8A77970,
 	SH_PFC_R8A77980,
@@ -853,6 +854,10 @@
 	if (model == SH_PFC_R8A7796)
 		priv->pfc.info = &r8a7796_pinmux_info;
 #endif
+#ifdef CONFIG_PINCTRL_PFC_R8A774A1
+	if (model == SH_PFC_R8A774A1)
+		priv->pfc.info = &r8a774a1_pinmux_info;
+#endif
 #ifdef CONFIG_PINCTRL_PFC_R8A77965
 	if (model == SH_PFC_R8A77965)
 		priv->pfc.info = &r8a77965_pinmux_info;
@@ -924,6 +929,12 @@
 		.data = SH_PFC_R8A7796,
 	},
 #endif
+#ifdef CONFIG_PINCTRL_PFC_R8A774A1
+	{
+		.compatible = "renesas,pfc-r8a774a1",
+		.data = SH_PFC_R8A774A1,
+	},
+#endif
 #ifdef CONFIG_PINCTRL_PFC_R8A77965
 	{
 		.compatible = "renesas,pfc-r8a77965",
diff --git a/drivers/pinctrl/renesas/sh_pfc.h b/drivers/pinctrl/renesas/sh_pfc.h
index db3d513..81c0179 100644
--- a/drivers/pinctrl/renesas/sh_pfc.h
+++ b/drivers/pinctrl/renesas/sh_pfc.h
@@ -293,6 +293,7 @@
 sh_pfc_pin_to_bias_reg(const struct sh_pfc *pfc, unsigned int pin,
 		       unsigned int *bit);
 
+extern const struct sh_pfc_soc_info r8a774a1_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7790_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7791_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7792_pinmux_info;