pinctrl: renesas: r8a779f0: Add I2C pins, groups, and functions

Add pins, groups, and functions for the I2C Bus Interfaces (I2C) on the
Renesas R-Car S4-8 (R8A779F0) SoC.

Extracted from a larger patch in the BSP by LUU HOAI.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/217f5b3e3888b5899c375d3cb1ec8780f6a9e19b.1645457792.git.geert+renesas@glider.be

diff --git a/drivers/pinctrl/renesas/pfc-r8a779f0.c b/drivers/pinctrl/renesas/pfc-r8a779f0.c
index 8c5c679..4580052 100644 (file)
--- a/drivers/pinctrl/renesas/pfc-r8a779f0.c
+++ b/drivers/pinctrl/renesas/pfc-r8a779f0.c
@@ -488,6 +488,60 @@ static const struct sh_pfc_pin pinmux_pins[] = {
        PINMUX_GPIO_GP_ALL(),
 };
 
+/* - I2C0 ------------------------------------------------------------------- */
+static const unsigned int i2c0_pins[] = {
+       /* SDA0, SCL0 */
+       RCAR_GP_PIN(1, 1), RCAR_GP_PIN(1, 0),
+};
+static const unsigned int i2c0_mux[] = {
+       SDA0_MARK, SCL0_MARK,
+};
+
+/* - I2C1 ------------------------------------------------------------------- */
+static const unsigned int i2c1_pins[] = {
+       /* SDA1, SCL1 */
+       RCAR_GP_PIN(1, 3), RCAR_GP_PIN(1, 2),
+};
+static const unsigned int i2c1_mux[] = {
+       SDA1_MARK, SCL1_MARK,
+};
+
+/* - I2C2 ------------------------------------------------------------------- */
+static const unsigned int i2c2_pins[] = {
+       /* SDA2, SCL2 */
+       RCAR_GP_PIN(1, 5), RCAR_GP_PIN(1, 4),
+};
+static const unsigned int i2c2_mux[] = {
+       SDA2_MARK, SCL2_MARK,
+};
+
+/* - I2C3 ------------------------------------------------------------------- */
+static const unsigned int i2c3_pins[] = {
+       /* SDA3, SCL3 */
+       RCAR_GP_PIN(1, 7), RCAR_GP_PIN(1, 6),
+};
+static const unsigned int i2c3_mux[] = {
+       SDA3_MARK, SCL3_MARK,
+};
+
+/* - I2C4 ------------------------------------------------------------------- */
+static const unsigned int i2c4_pins[] = {
+       /* SDA4, SCL4 */
+       RCAR_GP_PIN(1, 9), RCAR_GP_PIN(1, 8),
+};
+static const unsigned int i2c4_mux[] = {
+       SDA4_MARK, SCL4_MARK,
+};
+
+/* - I2C5 ------------------------------------------------------------------- */
+static const unsigned int i2c5_pins[] = {
+       /* SDA5, SCL5 */
+       RCAR_GP_PIN(1, 11), RCAR_GP_PIN(1, 10),
+};
+static const unsigned int i2c5_mux[] = {
+       SDA5_MARK, SCL5_MARK,
+};
+
 /* - SCIF0 ------------------------------------------------------------------ */
 static const unsigned int scif0_data_pins[] = {
        /* RX0, TX0 */
@@ -590,6 +644,12 @@ static const unsigned int scif_clk_mux[] = {
 };
 
 static const struct sh_pfc_pin_group pinmux_groups[] = {
+       SH_PFC_PIN_GROUP(i2c0),
+       SH_PFC_PIN_GROUP(i2c1),
+       SH_PFC_PIN_GROUP(i2c2),
+       SH_PFC_PIN_GROUP(i2c3),
+       SH_PFC_PIN_GROUP(i2c4),
+       SH_PFC_PIN_GROUP(i2c5),
        SH_PFC_PIN_GROUP(scif0_data),
        SH_PFC_PIN_GROUP(scif0_clk),
        SH_PFC_PIN_GROUP(scif0_ctrl),
@@ -605,6 +665,30 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
        SH_PFC_PIN_GROUP(scif_clk),
 };
 
+static const char * const i2c0_groups[] = {
+       "i2c0",
+};
+
+static const char * const i2c1_groups[] = {
+       "i2c1",
+};
+
+static const char * const i2c2_groups[] = {
+       "i2c2",
+};
+
+static const char * const i2c3_groups[] = {
+       "i2c3",
+};
+
+static const char * const i2c4_groups[] = {
+       "i2c4",
+};
+
+static const char * const i2c5_groups[] = {
+       "i2c5",
+};
+
 static const char * const scif0_groups[] = {
        "scif0_data",
        "scif0_clk",
@@ -634,6 +718,12 @@ static const char * const scif_clk_groups[] = {
 };
 
 static const struct sh_pfc_function pinmux_functions[] = {
+       SH_PFC_FUNCTION(i2c0),
+       SH_PFC_FUNCTION(i2c1),
+       SH_PFC_FUNCTION(i2c2),
+       SH_PFC_FUNCTION(i2c3),
+       SH_PFC_FUNCTION(i2c4),
+       SH_PFC_FUNCTION(i2c5),
        SH_PFC_FUNCTION(scif0),
        SH_PFC_FUNCTION(scif1),
        SH_PFC_FUNCTION(scif3),