pinctrl: renesas: r8a7778: Share MMC pin group data

Pin groups mmc_data[14] are subsets of mmc_data8.

This reduces kernel size by 40 bytes.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/d3bf7dfda2952a0265171f82024931d490d9178a.1640269757.git.geert+renesas@glider.be

drivers/pinctrl/renesas/pfc-r8a7778.c

@@ -1427,25 +1427,17 @@ I2C_PFC_MUX(i2c3_c,	SDA3_C,			SCL3_C);
 /* - MMC macro -------------------------------------------------------------- */
 #define MMC_PFC_PINS(name, args...)		SH_PFC_PINS(name, args)
 #define MMC_PFC_CTRL(name, clk, cmd)		SH_PFC_MUX2(name, clk, cmd)
-#define MMC_PFC_DAT1(name, d0)			SH_PFC_MUX1(name, d0)
-#define MMC_PFC_DAT4(name, d0, d1, d2, d3)	SH_PFC_MUX4(name, d0, d1, d2, d3)
 #define MMC_PFC_DAT8(name, d0, d1, d2, d3, d4, d5, d6, d7)	\
 			SH_PFC_MUX8(name, d0, d1, d2, d3, d4, d5, d6, d7)
 
 /* - MMC -------------------------------------------------------------------- */
 MMC_PFC_PINS(mmc_ctrl,		RCAR_GP_PIN(1, 5),	RCAR_GP_PIN(1, 6));
 MMC_PFC_CTRL(mmc_ctrl,		MMC_CLK,		MMC_CMD);
-MMC_PFC_PINS(mmc_data1,		RCAR_GP_PIN(1, 7));
-MMC_PFC_DAT1(mmc_data1,		MMC_D0);
-MMC_PFC_PINS(mmc_data4,		RCAR_GP_PIN(1, 7),	RCAR_GP_PIN(1, 8),
-				RCAR_GP_PIN(0, 5),	RCAR_GP_PIN(0, 6));
-MMC_PFC_DAT4(mmc_data4,		MMC_D0,			MMC_D1,
-				MMC_D2,			MMC_D3);
-MMC_PFC_PINS(mmc_data8,		RCAR_GP_PIN(1, 7),	RCAR_GP_PIN(1, 8),
+MMC_PFC_PINS(mmc_data,		RCAR_GP_PIN(1, 7),	RCAR_GP_PIN(1, 8),
 				RCAR_GP_PIN(0, 5),	RCAR_GP_PIN(0, 6),
 				RCAR_GP_PIN(1, 4),	RCAR_GP_PIN(1, 0),
 				RCAR_GP_PIN(0, 30),	RCAR_GP_PIN(0, 31));
-MMC_PFC_DAT8(mmc_data8,		MMC_D0,			MMC_D1,
+MMC_PFC_DAT8(mmc_data,		MMC_D0,			MMC_D1,
 				MMC_D2,			MMC_D3,
 				MMC_D4,			MMC_D5,
 				MMC_D6,			MMC_D7);
@@ -1744,9 +1736,9 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(i2c3_b),
 	SH_PFC_PIN_GROUP(i2c3_c),
 	SH_PFC_PIN_GROUP(mmc_ctrl),
-	SH_PFC_PIN_GROUP(mmc_data1),
-	SH_PFC_PIN_GROUP(mmc_data4),
-	SH_PFC_PIN_GROUP(mmc_data8),
+	BUS_DATA_PIN_GROUP(mmc_data, 1),
+	BUS_DATA_PIN_GROUP(mmc_data, 4),
+	BUS_DATA_PIN_GROUP(mmc_data, 8),
 	SH_PFC_PIN_GROUP(scif_clk),
 	SH_PFC_PIN_GROUP(scif0_data_a),
 	SH_PFC_PIN_GROUP(scif0_data_b),