pinctrl: sh-pfc: r8a7795: Add INTC-EX pins, groups and function

Add pins, groups, and a function for the INTC-EX interrupt controller on
R-Car H3 ES2.0.

Extracted from a big patch in the BSP by Takeshi Kihara.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/sh-pfc/pfc-r8a7795.c

@@ -2127,6 +2127,50 @@ static const unsigned int i2c6_c_mux[] = {
 	SDA6_C_MARK, SCL6_C_MARK,
 };
 
+/* - INTC-EX ---------------------------------------------------------------- */
+static const unsigned int intc_ex_irq0_pins[] = {
+	/* IRQ0 */
+	RCAR_GP_PIN(2, 0),
+};
+static const unsigned int intc_ex_irq0_mux[] = {
+	IRQ0_MARK,
+};
+static const unsigned int intc_ex_irq1_pins[] = {
+	/* IRQ1 */
+	RCAR_GP_PIN(2, 1),
+};
+static const unsigned int intc_ex_irq1_mux[] = {
+	IRQ1_MARK,
+};
+static const unsigned int intc_ex_irq2_pins[] = {
+	/* IRQ2 */
+	RCAR_GP_PIN(2, 2),
+};
+static const unsigned int intc_ex_irq2_mux[] = {
+	IRQ2_MARK,
+};
+static const unsigned int intc_ex_irq3_pins[] = {
+	/* IRQ3 */
+	RCAR_GP_PIN(2, 3),
+};
+static const unsigned int intc_ex_irq3_mux[] = {
+	IRQ3_MARK,
+};
+static const unsigned int intc_ex_irq4_pins[] = {
+	/* IRQ4 */
+	RCAR_GP_PIN(2, 4),
+};
+static const unsigned int intc_ex_irq4_mux[] = {
+	IRQ4_MARK,
+};
+static const unsigned int intc_ex_irq5_pins[] = {
+	/* IRQ5 */
+	RCAR_GP_PIN(2, 5),
+};
+static const unsigned int intc_ex_irq5_mux[] = {
+	IRQ5_MARK,
+};
+
 /* - MSIOF0 ----------------------------------------------------------------- */
 static const unsigned int msiof0_clk_pins[] = {
 	/* SCK */
@@ -3636,6 +3680,12 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(i2c6_a),
 	SH_PFC_PIN_GROUP(i2c6_b),
 	SH_PFC_PIN_GROUP(i2c6_c),
+	SH_PFC_PIN_GROUP(intc_ex_irq0),
+	SH_PFC_PIN_GROUP(intc_ex_irq1),
+	SH_PFC_PIN_GROUP(intc_ex_irq2),
+	SH_PFC_PIN_GROUP(intc_ex_irq3),
+	SH_PFC_PIN_GROUP(intc_ex_irq4),
+	SH_PFC_PIN_GROUP(intc_ex_irq5),
 	SH_PFC_PIN_GROUP(msiof0_clk),
 	SH_PFC_PIN_GROUP(msiof0_sync),
 	SH_PFC_PIN_GROUP(msiof0_ss1),
@@ -3937,6 +3987,15 @@ static const char * const i2c6_groups[] = {
 	"i2c6_c",
 };
 
+static const char * const intc_ex_groups[] = {
+	"intc_ex_irq0",
+	"intc_ex_irq1",
+	"intc_ex_irq2",
+	"intc_ex_irq3",
+	"intc_ex_irq4",
+	"intc_ex_irq5",
+};
+
 static const char * const msiof0_groups[] = {
 	"msiof0_clk",
 	"msiof0_sync",
@@ -4229,6 +4288,7 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(i2c1),
 	SH_PFC_FUNCTION(i2c2),
 	SH_PFC_FUNCTION(i2c6),
+	SH_PFC_FUNCTION(intc_ex),
 	SH_PFC_FUNCTION(msiof0),
 	SH_PFC_FUNCTION(msiof1),
 	SH_PFC_FUNCTION(msiof2),