pinctrl: sh-pfc: r8a77990: Add R8A774C0 PFC support

Renesas RZ/G2E (a.k.a. r8a774c0) is pin compatible with R-Car
E3 (a.k.a. r8a77990), however it doesn't have several automotive
specific peripherals. Add a r8a77990 specific pin groups/functions
along with common pin groups/functions for supporting both r8a77990
and r8a774c0 SoCs.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/sh-pfc/Kconfig

@@ -60,6 +60,11 @@ config PINCTRL_PFC_R8A774A1
         depends on ARCH_R8A774A1
         select PINCTRL_SH_PFC
 
+config PINCTRL_PFC_R8A774C0
+        def_bool y
+        depends on ARCH_R8A774C0
+        select PINCTRL_SH_PFC
+
 config PINCTRL_PFC_R8A7778
 	def_bool y
 	depends on ARCH_R8A7778

drivers/pinctrl/sh-pfc/Makefile

@@ -9,6 +9,7 @@ obj-$(CONFIG_PINCTRL_PFC_R8A7744)	+= pfc-r8a7791.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7745)	+= pfc-r8a7794.o
 obj-$(CONFIG_PINCTRL_PFC_R8A77470)	+= pfc-r8a77470.o
 obj-$(CONFIG_PINCTRL_PFC_R8A774A1)	+= pfc-r8a7796.o
+obj-$(CONFIG_PINCTRL_PFC_R8A774C0)	+= pfc-r8a77990.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7778)	+= pfc-r8a7778.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7779)	+= pfc-r8a7779.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7790)	+= pfc-r8a7790.o

drivers/pinctrl/sh-pfc/core.c

@@ -518,6 +518,12 @@ static const struct of_device_id sh_pfc_of_table[] = {
 		.data = &r8a774a1_pinmux_info,
 	},
 #endif
+#ifdef CONFIG_PINCTRL_PFC_R8A774C0
+	{
+		.compatible = "renesas,pfc-r8a774c0",
+		.data = &r8a774c0_pinmux_info,
+	},
+#endif
 #ifdef CONFIG_PINCTRL_PFC_R8A7778
 	{
 		.compatible = "renesas,pfc-r8a7778",

drivers/pinctrl/sh-pfc/pfc-r8a77990.c

@@ -2389,7 +2389,11 @@ static const unsigned int usb30_id_mux[] = {
 	USB3HS0_ID_MARK,
 };
 
-static const struct sh_pfc_pin_group pinmux_groups[] = {
+static const struct {
+	struct sh_pfc_pin_group common[117];
+	struct sh_pfc_pin_group r8a77990[0];
+} pinmux_groups = {
+	.common = {
 		SH_PFC_PIN_GROUP(avb_link),
 		SH_PFC_PIN_GROUP(avb_magic),
 		SH_PFC_PIN_GROUP(avb_phy_int),
@@ -2507,6 +2511,7 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 		SH_PFC_PIN_GROUP(usb0_id),
 		SH_PFC_PIN_GROUP(usb30),
 		SH_PFC_PIN_GROUP(usb30_id),
+	}
 };
 
 static const char * const avb_groups[] = {
@@ -2710,7 +2715,11 @@ static const char * const usb30_groups[] = {
 	"usb30_id",
 };
 
-static const struct sh_pfc_function pinmux_functions[] = {
+static const struct {
+	struct sh_pfc_function common[28];
+	struct sh_pfc_function r8a77990[0];
+} pinmux_functions = {
+	.common = {
 		SH_PFC_FUNCTION(avb),
 		SH_PFC_FUNCTION(du),
 		SH_PFC_FUNCTION(i2c1),
@@ -2739,6 +2748,7 @@ static const struct sh_pfc_function pinmux_functions[] = {
 		SH_PFC_FUNCTION(scif_clk),
 		SH_PFC_FUNCTION(usb0),
 		SH_PFC_FUNCTION(usb30),
+	}
 };
 
 static const struct pinmux_cfg_reg pinmux_config_regs[] = {
@@ -3464,6 +3474,30 @@ static const struct sh_pfc_soc_operations r8a77990_pinmux_ops = {
 	.set_bias = r8a77990_pinmux_set_bias,
 };
 
+#ifdef CONFIG_PINCTRL_PFC_R8A774C0
+const struct sh_pfc_soc_info r8a774c0_pinmux_info = {
+	.name = "r8a774c0_pfc",
+	.ops = &r8a77990_pinmux_ops,
+	.unlock_reg = 0xe6060000, /* PMMR */
+
+	.function = { PINMUX_FUNCTION_BEGIN, PINMUX_FUNCTION_END },
+
+	.pins = pinmux_pins,
+	.nr_pins = ARRAY_SIZE(pinmux_pins),
+	.groups = pinmux_groups.common,
+	.nr_groups = ARRAY_SIZE(pinmux_groups.common),
+	.functions = pinmux_functions.common,
+	.nr_functions = ARRAY_SIZE(pinmux_functions.common),
+
+	.cfg_regs = pinmux_config_regs,
+	.bias_regs = pinmux_bias_regs,
+
+	.pinmux_data = pinmux_data,
+	.pinmux_data_size = ARRAY_SIZE(pinmux_data),
+};
+#endif
+
+#ifdef CONFIG_PINCTRL_PFC_R8A77990
 const struct sh_pfc_soc_info r8a77990_pinmux_info = {
 	.name = "r8a77990_pfc",
 	.ops = &r8a77990_pinmux_ops,
@@ -3473,10 +3507,12 @@ const struct sh_pfc_soc_info r8a77990_pinmux_info = {
 
 	.pins = pinmux_pins,
 	.nr_pins = ARRAY_SIZE(pinmux_pins),
-	.groups = pinmux_groups,
-	.nr_groups = ARRAY_SIZE(pinmux_groups),
-	.functions = pinmux_functions,
-	.nr_functions = ARRAY_SIZE(pinmux_functions),
+	.groups = pinmux_groups.common,
+	.nr_groups = ARRAY_SIZE(pinmux_groups.common) +
+		ARRAY_SIZE(pinmux_groups.r8a77990),
+	.functions = pinmux_functions.common,
+	.nr_functions = ARRAY_SIZE(pinmux_functions.common) +
+		ARRAY_SIZE(pinmux_functions.r8a77990),
 
 	.cfg_regs = pinmux_config_regs,
 	.bias_regs = pinmux_bias_regs,
@@ -3484,3 +3520,4 @@ const struct sh_pfc_soc_info r8a77990_pinmux_info = {
 	.pinmux_data = pinmux_data,
 	.pinmux_data_size = ARRAY_SIZE(pinmux_data),
 };
+#endif

drivers/pinctrl/sh-pfc/sh_pfc.h

@@ -274,6 +274,7 @@ extern const struct sh_pfc_soc_info r8a7744_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7745_pinmux_info;
 extern const struct sh_pfc_soc_info r8a77470_pinmux_info;
 extern const struct sh_pfc_soc_info r8a774a1_pinmux_info;
+extern const struct sh_pfc_soc_info r8a774c0_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7778_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7779_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7790_pinmux_info;