sh-pfc: r8a7790: Add I2C pin groups and functions

Adds pinmux for i2c bus 1 and 2. (Pins for 0 and 3 are not multiplexed.)
Signed-off-by: Ulrich Hecht <ulrich.hecht@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

drivers/pinctrl/sh-pfc/pfc-r8a7790.c

@@ -1990,6 +1990,64 @@ static const unsigned int hscif1_ctrl_b_pins[] = {
 static const unsigned int hscif1_ctrl_b_mux[] = {
 	HRTS1_N_B_MARK, HCTS1_N_B_MARK,
 };
+/* - I2C1 ------------------------------------------------------------------- */
+static const unsigned int i2c1_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(1, 16), RCAR_GP_PIN(1, 17),
+};
+static const unsigned int i2c1_mux[] = {
+	I2C1_SCL_MARK, I2C1_SDA_MARK,
+};
+static const unsigned int i2c1_b_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(3, 6), RCAR_GP_PIN(3, 7),
+};
+static const unsigned int i2c1_b_mux[] = {
+	I2C1_SCL_B_MARK, I2C1_SDA_B_MARK,
+};
+static const unsigned int i2c1_c_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(4, 30), RCAR_GP_PIN(4, 27),
+};
+static const unsigned int i2c1_c_mux[] = {
+	I2C1_SCL_C_MARK, I2C1_SDA_C_MARK,
+};
+/* - I2C2 ------------------------------------------------------------------- */
+static const unsigned int i2c2_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(5, 5), RCAR_GP_PIN(5, 6),
+};
+static const unsigned int i2c2_mux[] = {
+	I2C2_SCL_MARK, I2C2_SDA_MARK,
+};
+static const unsigned int i2c2_b_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(4, 0), RCAR_GP_PIN(4, 1),
+};
+static const unsigned int i2c2_b_mux[] = {
+	I2C2_SCL_B_MARK, I2C2_SDA_B_MARK,
+};
+static const unsigned int i2c2_c_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(0, 6), RCAR_GP_PIN(0, 7),
+};
+static const unsigned int i2c2_c_mux[] = {
+	I2C2_SCL_C_MARK, I2C2_SDA_C_MARK,
+};
+static const unsigned int i2c2_d_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(3, 14), RCAR_GP_PIN(3, 15),
+};
+static const unsigned int i2c2_d_mux[] = {
+	I2C2_SCL_D_MARK, I2C2_SDA_D_MARK,
+};
+static const unsigned int i2c2_e_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(2, 18), RCAR_GP_PIN(2, 19),
+};
+static const unsigned int i2c2_e_mux[] = {
+	I2C2_SCL_E_MARK, I2C2_SDA_E_MARK,
+};
 /* - INTC ------------------------------------------------------------------- */
 static const unsigned int intc_irq0_pins[] = {
 	/* IRQ */
@@ -3047,6 +3105,14 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(hscif1_data_b),
 	SH_PFC_PIN_GROUP(hscif1_clk_b),
 	SH_PFC_PIN_GROUP(hscif1_ctrl_b),
+	SH_PFC_PIN_GROUP(i2c1),
+	SH_PFC_PIN_GROUP(i2c1_b),
+	SH_PFC_PIN_GROUP(i2c1_c),
+	SH_PFC_PIN_GROUP(i2c2),
+	SH_PFC_PIN_GROUP(i2c2_b),
+	SH_PFC_PIN_GROUP(i2c2_c),
+	SH_PFC_PIN_GROUP(i2c2_d),
+	SH_PFC_PIN_GROUP(i2c2_e),
 	SH_PFC_PIN_GROUP(intc_irq0),
 	SH_PFC_PIN_GROUP(intc_irq1),
 	SH_PFC_PIN_GROUP(intc_irq2),
@@ -3243,6 +3309,20 @@ static const char * const hscif1_groups[] = {
 	"hscif1_ctrl_b",
 };
 
+static const char * const i2c1_groups[] = {
+	"i2c1",
+	"i2c1_b",
+	"i2c1_c",
+};
+
+static const char * const i2c2_groups[] = {
+	"i2c2",
+	"i2c2_b",
+	"i2c2_c",
+	"i2c2_d",
+	"i2c2_e",
+};
+
 static const char * const intc_groups[] = {
 	"intc_irq0",
 	"intc_irq1",
@@ -3469,6 +3549,8 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(eth),
 	SH_PFC_FUNCTION(hscif0),
 	SH_PFC_FUNCTION(hscif1),
+	SH_PFC_FUNCTION(i2c1),
+	SH_PFC_FUNCTION(i2c2),
 	SH_PFC_FUNCTION(intc),
 	SH_PFC_FUNCTION(mmc0),
 	SH_PFC_FUNCTION(mmc1),