pinctrl: sh-pfc: r8a7795: Add I2C{0,3,5} pins, groups and functions

This patch adds I2C{0,3,5} pins, groups and functions to the R8A7795 SoC.

These pins are physically muxed with other pins. Therefore, setup of
MOD_SEL is needed for exclusive control with other pins.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Ulrich Hecht <uli+renesas@fpond.eu>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

drivers/pinctrl/sh-pfc/pfc-r8a7795.c

@@ -550,6 +550,9 @@ MOD_SEL0_4_3		MOD_SEL1_4 \
 	FM(DU_DOTCLKIN0) FM(DU_DOTCLKIN1) FM(DU_DOTCLKIN2) FM(DU_DOTCLKIN3) \
 	FM(TMS) FM(TDO) FM(ASEBRK) FM(MLB_REF) FM(TDI) FM(TCK) FM(TRST) FM(EXTALR)
 
+#define PINMUX_PHYS \
+	FM(SCL0) FM(SDA0) FM(SCL3) FM(SDA3) FM(SCL5) FM(SDA5)
+
 enum {
 	PINMUX_RESERVED = 0,
 
@@ -575,6 +578,7 @@ enum {
 	PINMUX_IPSR
 	PINMUX_MOD_SELS
 	PINMUX_STATIC
+	PINMUX_PHYS
 	PINMUX_MARK_END,
 #undef F_
 #undef FM
@@ -588,9 +592,6 @@ static const u16 pinmux_data[] = {
 	PINMUX_SINGLE(CLKOUT),
 	PINMUX_SINGLE(HDMI0_CEC),
 	PINMUX_SINGLE(HDMI1_CEC),
-	PINMUX_SINGLE(I2C_SEL_0_1),
-	PINMUX_SINGLE(I2C_SEL_3_1),
-	PINMUX_SINGLE(I2C_SEL_5_1),
 	PINMUX_SINGLE(MSIOF0_RXD),
 	PINMUX_SINGLE(MSIOF0_SCK),
 	PINMUX_SINGLE(MSIOF0_TXD),
@@ -614,14 +615,16 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_MSEL(IP0_15_12,	MSIOF2_SCK_C,		SEL_MSIOF2_2),
 	PINMUX_IPSR_MSEL(IP0_15_12,	TX4_A,			SEL_SCIF4_0),
 
-	PINMUX_IPSR_MSEL(IP0_19_16,	AVB_AVTP_MATCH_A,	SEL_ETHERAVB_0),
-	PINMUX_IPSR_MSEL(IP0_19_16,	MSIOF2_RXD_C,		SEL_MSIOF2_2),
-	PINMUX_IPSR_MSEL(IP0_19_16,	CTS4_N_A,		SEL_SCIF4_0),
-	PINMUX_IPSR_GPSR(IP0_19_16,	FSCLKST2_N_A),
+	PINMUX_IPSR_PHYS_MSEL(IP0_19_16, AVB_AVTP_MATCH_A,	I2C_SEL_5_0,	SEL_ETHERAVB_0),
+	PINMUX_IPSR_PHYS_MSEL(IP0_19_16, MSIOF2_RXD_C,		I2C_SEL_5_0,	SEL_MSIOF2_2),
+	PINMUX_IPSR_PHYS_MSEL(IP0_19_16, CTS4_N_A,		I2C_SEL_5_0,	SEL_SCIF4_0),
+	PINMUX_IPSR_MSEL(IP0_19_16,	FSCLKST2_N_A,		I2C_SEL_5_0),
+	PINMUX_IPSR_PHYS(IP0_19_16,     SCL5,                   I2C_SEL_5_1),
 
-	PINMUX_IPSR_MSEL(IP0_23_20,	AVB_AVTP_CAPTURE_A,	SEL_ETHERAVB_0),
-	PINMUX_IPSR_MSEL(IP0_23_20,	MSIOF2_TXD_C,		SEL_MSIOF2_2),
-	PINMUX_IPSR_MSEL(IP0_23_20,	RTS4_N_A,		SEL_SCIF4_0),
+	PINMUX_IPSR_PHYS_MSEL(IP0_23_20, AVB_AVTP_CAPTURE_A,	I2C_SEL_5_0,	SEL_ETHERAVB_0),
+	PINMUX_IPSR_PHYS_MSEL(IP0_23_20, MSIOF2_TXD_C,		I2C_SEL_5_0,	SEL_MSIOF2_2),
+	PINMUX_IPSR_PHYS_MSEL(IP0_23_20, RTS4_N_A,		I2C_SEL_5_0,	SEL_SCIF4_0),
+	PINMUX_IPSR_PHYS(IP0_23_20,     SDA5,                   I2C_SEL_5_1),
 
 	PINMUX_IPSR_GPSR(IP0_27_24,	IRQ0),
 	PINMUX_IPSR_GPSR(IP0_27_24,	QPOLB),
@@ -674,14 +677,16 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_MSEL(IP1_19_16,	VI4_DATA6_B,		SEL_VIN4_1),
 	PINMUX_IPSR_MSEL(IP1_19_16,	IECLK_B,		SEL_IEBUS_1),
 
-	PINMUX_IPSR_MSEL(IP1_23_20,	PWM1_A,			SEL_PWM1_0),
-	PINMUX_IPSR_MSEL(IP1_23_20,	HRX3_D,			SEL_HSCIF3_3),
-	PINMUX_IPSR_MSEL(IP1_23_20,	VI4_DATA7_B,		SEL_VIN4_1),
-	PINMUX_IPSR_MSEL(IP1_23_20,	IERX_B,			SEL_IEBUS_1),
+	PINMUX_IPSR_PHYS_MSEL(IP1_23_20, PWM1_A,		I2C_SEL_3_0,	SEL_PWM1_0),
+	PINMUX_IPSR_PHYS_MSEL(IP1_23_20, HRX3_D,		I2C_SEL_3_0,	SEL_HSCIF3_3),
+	PINMUX_IPSR_PHYS_MSEL(IP1_23_20, VI4_DATA7_B,		I2C_SEL_3_0,	SEL_VIN4_1),
+	PINMUX_IPSR_PHYS_MSEL(IP1_23_20, IERX_B,		I2C_SEL_3_0,	SEL_IEBUS_1),
+	PINMUX_IPSR_PHYS(IP0_23_20,	SCL3,			I2C_SEL_3_1),
 
-	PINMUX_IPSR_MSEL(IP1_27_24,	PWM2_A,			SEL_PWM2_0),
-	PINMUX_IPSR_MSEL(IP1_27_24,	HTX3_D,			SEL_HSCIF3_3),
-	PINMUX_IPSR_MSEL(IP1_27_24,	IETX_B,			SEL_IEBUS_1),
+	PINMUX_IPSR_PHYS_MSEL(IP1_27_24, PWM2_A,		I2C_SEL_3_0,	SEL_PWM2_0),
+	PINMUX_IPSR_PHYS_MSEL(IP1_27_24, HTX3_D,		I2C_SEL_3_0,	SEL_HSCIF3_3),
+	PINMUX_IPSR_PHYS_MSEL(IP1_27_24, IETX_B,		I2C_SEL_3_0,	SEL_IEBUS_1),
+	PINMUX_IPSR_PHYS(IP1_27_24,	SDA3,			I2C_SEL_3_1),
 
 	PINMUX_IPSR_GPSR(IP1_31_28,	A0),
 	PINMUX_IPSR_GPSR(IP1_31_28,	LCDOUT16),
@@ -1113,11 +1118,13 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_GPSR(IP11_15_12,	SD0_WP),
 	PINMUX_IPSR_MSEL(IP11_15_12,	SDA2_B,			SEL_I2C2_1),
 
-	PINMUX_IPSR_GPSR(IP11_19_16,	SD1_CD),
-	PINMUX_IPSR_MSEL(IP11_19_16,	SIM0_CLK_B,		SEL_SIMCARD_1),
+	PINMUX_IPSR_MSEL(IP11_19_16,	SD1_CD,			I2C_SEL_0_0),
+	PINMUX_IPSR_PHYS_MSEL(IP11_19_16, SIM0_CLK_B,		I2C_SEL_0_0,	SEL_SIMCARD_1),
+	PINMUX_IPSR_PHYS(IP11_19_16,	SCL0,			I2C_SEL_0_1),
 
-	PINMUX_IPSR_GPSR(IP11_23_20,	SD1_WP),
-	PINMUX_IPSR_MSEL(IP11_23_20,	SIM0_D_B,		SEL_SIMCARD_1),
+	PINMUX_IPSR_MSEL(IP11_23_20,	SD1_WP,			I2C_SEL_0_0),
+	PINMUX_IPSR_PHYS_MSEL(IP11_23_20, SIM0_D_B,		I2C_SEL_0_0,	SEL_SIMCARD_1),
+	PINMUX_IPSR_PHYS(IP11_23_20,	SDA0,			I2C_SEL_0_1),
 
 	PINMUX_IPSR_GPSR(IP11_27_24,	SCK0),
 	PINMUX_IPSR_MSEL(IP11_27_24,	HSCK1_B,		SEL_HSCIF1_1),
@@ -2348,6 +2355,15 @@ static const unsigned int hscif4_data_b_mux[] = {
 };
 
 /* - I2C -------------------------------------------------------------------- */
+static const unsigned int i2c0_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(3, 14), RCAR_GP_PIN(3, 15),
+};
+
+static const unsigned int i2c0_mux[] = {
+	SCL0_MARK, SDA0_MARK,
+};
+
 static const unsigned int i2c1_a_pins[] = {
 	/* SDA, SCL */
 	RCAR_GP_PIN(5, 11), RCAR_GP_PIN(5, 10),
@@ -2376,6 +2392,25 @@ static const unsigned int i2c2_b_pins[] = {
 static const unsigned int i2c2_b_mux[] = {
 	SDA2_B_MARK, SCL2_B_MARK,
 };
+
+static const unsigned int i2c3_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(2, 7), RCAR_GP_PIN(2, 8),
+};
+
+static const unsigned int i2c3_mux[] = {
+	SCL3_MARK, SDA3_MARK,
+};
+
+static const unsigned int i2c5_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(2, 13), RCAR_GP_PIN(2, 14),
+};
+
+static const unsigned int i2c5_mux[] = {
+	SCL5_MARK, SDA5_MARK,
+};
+
 static const unsigned int i2c6_a_pins[] = {
 	/* SDA, SCL */
 	RCAR_GP_PIN(1, 8), RCAR_GP_PIN(1, 11),
@@ -4258,10 +4293,13 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(hscif4_clk),
 	SH_PFC_PIN_GROUP(hscif4_ctrl),
 	SH_PFC_PIN_GROUP(hscif4_data_b),
+	SH_PFC_PIN_GROUP(i2c0),
 	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(i2c3),
+	SH_PFC_PIN_GROUP(i2c5),
 	SH_PFC_PIN_GROUP(i2c6_a),
 	SH_PFC_PIN_GROUP(i2c6_b),
 	SH_PFC_PIN_GROUP(i2c6_c),
@@ -4662,6 +4700,10 @@ static const char * const hscif4_groups[] = {
 	"hscif4_data_b",
 };
 
+static const char * const i2c0_groups[] = {
+	"i2c0",
+};
+
 static const char * const i2c1_groups[] = {
 	"i2c1_a",
 	"i2c1_b",
@@ -4672,6 +4714,14 @@ static const char * const i2c2_groups[] = {
 	"i2c2_b",
 };
 
+static const char * const i2c3_groups[] = {
+	"i2c3",
+};
+
+static const char * const i2c5_groups[] = {
+	"i2c5",
+};
+
 static const char * const i2c6_groups[] = {
 	"i2c6_a",
 	"i2c6_b",
@@ -5032,8 +5082,11 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(hscif2),
 	SH_PFC_FUNCTION(hscif3),
 	SH_PFC_FUNCTION(hscif4),
+	SH_PFC_FUNCTION(i2c0),
 	SH_PFC_FUNCTION(i2c1),
 	SH_PFC_FUNCTION(i2c2),
+	SH_PFC_FUNCTION(i2c3),
+	SH_PFC_FUNCTION(i2c5),
 	SH_PFC_FUNCTION(i2c6),
 	SH_PFC_FUNCTION(intc_ex),
 	SH_PFC_FUNCTION(msiof0),