pinctrl: renesas: r8a7796: Share more VIN pin group data

Pin group vin4_g8 is a subset of vin4_data24_a.
Pin group vin5_high8 is a subset of vin5_data16.

This reduces kernel size by 128 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/1fc04bb08e2c26109509bd53b19ffbf9ce83d2f1.1640269757.git.geert+renesas@glider.be

drivers/pinctrl/renesas/pfc-r8a7796.c

@@ -4042,18 +4042,6 @@ static const unsigned int vin4_data_b_mux[] = {
 	VI4_DATA20_MARK, VI4_DATA21_MARK,
 	VI4_DATA22_MARK, VI4_DATA23_MARK,
 };
-static const unsigned int vin4_g8_pins[] = {
-	RCAR_GP_PIN(1, 0),  RCAR_GP_PIN(1, 1),
-	RCAR_GP_PIN(1, 2),  RCAR_GP_PIN(1, 3),
-	RCAR_GP_PIN(1, 4),  RCAR_GP_PIN(1, 5),
-	RCAR_GP_PIN(1, 6),  RCAR_GP_PIN(1, 7),
-};
-static const unsigned int vin4_g8_mux[] = {
-	VI4_DATA8_MARK,  VI4_DATA9_MARK,
-	VI4_DATA10_MARK, VI4_DATA11_MARK,
-	VI4_DATA12_MARK, VI4_DATA13_MARK,
-	VI4_DATA14_MARK, VI4_DATA15_MARK,
-};
 static const unsigned int vin4_sync_pins[] = {
 	/* HSYNC#, VSYNC# */
 	RCAR_GP_PIN(1, 18), RCAR_GP_PIN(1, 17),
@@ -4104,18 +4092,6 @@ static const unsigned int vin5_data_mux[] = {
 	VI5_DATA12_MARK, VI5_DATA13_MARK,
 	VI5_DATA14_MARK, VI5_DATA15_MARK,
 };
-static const unsigned int vin5_high8_pins[] = {
-	RCAR_GP_PIN(1, 12), RCAR_GP_PIN(1, 13),
-	RCAR_GP_PIN(1, 14), RCAR_GP_PIN(1, 15),
-	RCAR_GP_PIN(1, 4),  RCAR_GP_PIN(1, 5),
-	RCAR_GP_PIN(1, 6),  RCAR_GP_PIN(1, 7),
-};
-static const unsigned int vin5_high8_mux[] = {
-	VI5_DATA8_MARK,  VI5_DATA9_MARK,
-	VI5_DATA10_MARK, VI5_DATA11_MARK,
-	VI5_DATA12_MARK, VI5_DATA13_MARK,
-	VI5_DATA14_MARK, VI5_DATA15_MARK,
-};
 static const unsigned int vin5_sync_pins[] = {
 	/* HSYNC#, VSYNC# */
 	RCAR_GP_PIN(1, 10), RCAR_GP_PIN(1, 9),
@@ -4462,7 +4438,7 @@ static const struct {
 		SH_PFC_PIN_GROUP(vin4_data18_b),
 		BUS_DATA_PIN_GROUP(vin4_data, 20, _b),
 		BUS_DATA_PIN_GROUP(vin4_data, 24, _b),
-		SH_PFC_PIN_GROUP(vin4_g8),
+		SH_PFC_PIN_GROUP_SUBSET(vin4_g8, vin4_data_a, 8, 8),
 		SH_PFC_PIN_GROUP(vin4_sync),
 		SH_PFC_PIN_GROUP(vin4_field),
 		SH_PFC_PIN_GROUP(vin4_clkenb),
@@ -4471,7 +4447,7 @@ static const struct {
 		BUS_DATA_PIN_GROUP(vin5_data, 10),
 		BUS_DATA_PIN_GROUP(vin5_data, 12),
 		BUS_DATA_PIN_GROUP(vin5_data, 16),
-		SH_PFC_PIN_GROUP(vin5_high8),
+		SH_PFC_PIN_GROUP_SUBSET(vin5_high8, vin5_data, 8, 8),
 		SH_PFC_PIN_GROUP(vin5_sync),
 		SH_PFC_PIN_GROUP(vin5_field),
 		SH_PFC_PIN_GROUP(vin5_clkenb),