pinctrl: sh-pfc: r8a7796: Add I2C pin support

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/sh-pfc/pfc-r8a7796.c

@@ -1490,6 +1490,57 @@ static const struct sh_pfc_pin pinmux_pins[] = {
 	PINMUX_GPIO_GP_ALL(),
 };
 
+/* - I2C -------------------------------------------------------------------- */
+static const unsigned int i2c1_a_pins[] = {
+	/* SDA, SCL */
+	RCAR_GP_PIN(5, 11), RCAR_GP_PIN(5, 10),
+};
+static const unsigned int i2c1_a_mux[] = {
+	SDA1_A_MARK, SCL1_A_MARK,
+};
+static const unsigned int i2c1_b_pins[] = {
+	/* SDA, SCL */
+	RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 23),
+};
+static const unsigned int i2c1_b_mux[] = {
+	SDA1_B_MARK, SCL1_B_MARK,
+};
+static const unsigned int i2c2_a_pins[] = {
+	/* SDA, SCL */
+	RCAR_GP_PIN(5, 0), RCAR_GP_PIN(5, 4),
+};
+static const unsigned int i2c2_a_mux[] = {
+	SDA2_A_MARK, SCL2_A_MARK,
+};
+static const unsigned int i2c2_b_pins[] = {
+	/* SDA, SCL */
+	RCAR_GP_PIN(3, 13), RCAR_GP_PIN(3, 12),
+};
+static const unsigned int i2c2_b_mux[] = {
+	SDA2_B_MARK, SCL2_B_MARK,
+};
+static const unsigned int i2c6_a_pins[] = {
+	/* SDA, SCL */
+	RCAR_GP_PIN(1, 8), RCAR_GP_PIN(1, 11),
+};
+static const unsigned int i2c6_a_mux[] = {
+	SDA6_A_MARK, SCL6_A_MARK,
+};
+static const unsigned int i2c6_b_pins[] = {
+	/* SDA, SCL */
+	RCAR_GP_PIN(1, 26), RCAR_GP_PIN(1, 25),
+};
+static const unsigned int i2c6_b_mux[] = {
+	SDA6_B_MARK, SCL6_B_MARK,
+};
+static const unsigned int i2c6_c_pins[] = {
+	/* SDA, SCL */
+	RCAR_GP_PIN(0, 15), RCAR_GP_PIN(0, 14),
+};
+static const unsigned int i2c6_c_mux[] = {
+	SDA6_C_MARK, SCL6_C_MARK,
+};
+
 /* - SCIF0 ------------------------------------------------------------------ */
 static const unsigned int scif0_data_pins[] = {
 	/* RX, TX */
@@ -1912,6 +1963,13 @@ static const unsigned int sdhi3_ds_mux[] = {
 };
 
 static const struct sh_pfc_pin_group pinmux_groups[] = {
+	SH_PFC_PIN_GROUP(i2c1_a),
+	SH_PFC_PIN_GROUP(i2c1_b),
+	SH_PFC_PIN_GROUP(i2c2_a),
+	SH_PFC_PIN_GROUP(i2c2_b),
+	SH_PFC_PIN_GROUP(i2c6_a),
+	SH_PFC_PIN_GROUP(i2c6_b),
+	SH_PFC_PIN_GROUP(i2c6_c),
 	SH_PFC_PIN_GROUP(scif0_data),
 	SH_PFC_PIN_GROUP(scif0_clk),
 	SH_PFC_PIN_GROUP(scif0_ctrl),
@@ -1969,6 +2027,22 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(sdhi3_ds),
 };
 
+static const char * const i2c1_groups[] = {
+	"i2c1_a",
+	"i2c1_b",
+};
+
+static const char * const i2c2_groups[] = {
+	"i2c2_a",
+	"i2c2_b",
+};
+
+static const char * const i2c6_groups[] = {
+	"i2c6_a",
+	"i2c6_b",
+	"i2c6_c",
+};
+
 static const char * const scif0_groups[] = {
 	"scif0_data",
 	"scif0_clk",
@@ -2058,6 +2132,9 @@ static const char * const sdhi3_groups[] = {
 };
 
 static const struct sh_pfc_function pinmux_functions[] = {
+	SH_PFC_FUNCTION(i2c1),
+	SH_PFC_FUNCTION(i2c2),
+	SH_PFC_FUNCTION(i2c6),
 	SH_PFC_FUNCTION(scif0),
 	SH_PFC_FUNCTION(scif1),
 	SH_PFC_FUNCTION(scif2),