pinctrl: renesas: r8a779g0: Add Audio SSI pins, groups, and functions

Add pins, groups, and functions for the Serial Sound Interface (SSI) on
the Renesas R-Car V4H (R8A779G0) SoC.
Signed-off-by: Linh Phung <linh.phung.jy@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/87bkmcang2.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/renesas/pfc-r8a779g0.c

@@ -2345,6 +2345,22 @@ static const unsigned int scif_clk_mux[] = {
 	SCIF_CLK_MARK,
 };
 
+/* - SSI ------------------------------------------------- */
+static const unsigned int ssi_data_pins[] = {
+	/* SSI_SD */
+	RCAR_GP_PIN(1, 20),
+};
+static const unsigned int ssi_data_mux[] = {
+	SSI_SD_MARK,
+};
+static const unsigned int ssi_ctrl_pins[] = {
+	/* SSI_SCK,  SSI_WS */
+	RCAR_GP_PIN(1, 18), RCAR_GP_PIN(1, 19),
+};
+static const unsigned int ssi_ctrl_mux[] = {
+	SSI_SCK_MARK, SSI_WS_MARK,
+};
+
 /* - TPU ------------------------------------------------------------------- */
 static const unsigned int tpu_to0_pins[] = {
 	/* TPU0TO0 */
@@ -2640,6 +2656,9 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(scif4_ctrl),
 	SH_PFC_PIN_GROUP(scif_clk),
 
+	SH_PFC_PIN_GROUP(ssi_data),
+	SH_PFC_PIN_GROUP(ssi_ctrl),
+
 	SH_PFC_PIN_GROUP(tpu_to0),		/* suffix might be updated */
 	SH_PFC_PIN_GROUP(tpu_to0_a),		/* suffix might be updated */
 	SH_PFC_PIN_GROUP(tpu_to1),		/* suffix might be updated */
@@ -2957,6 +2976,11 @@ static const char * const scif_clk_groups[] = {
 	"scif_clk",
 };
 
+static const char * const ssi_groups[] = {
+	"ssi_data",
+	"ssi_ctrl",
+};
+
 static const char * const tpu_groups[] = {
 	/* suffix might be updated */
 	"tpu_to0",
@@ -3040,6 +3064,8 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(scif4),
 	SH_PFC_FUNCTION(scif_clk),
 
+	SH_PFC_FUNCTION(ssi),
+
 	SH_PFC_FUNCTION(tpu),
 
 	SH_PFC_FUNCTION(tsn0),