pinctrl: sh-pfc: r8a7795: add EtherAVB support

This patch adds EthernetAVB

Based on a much lager patch by Takeshi Kihara which was
originally posted by Kuninori Morimoto.

Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[horms: extracted from a larger patch;
        corrected swapped {MATCH,CAPTURE_A} pins]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

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

@@ -1548,6 +1548,71 @@ static const unsigned int audio_clkout3_b_mux[] = {
 	AUDIO_CLKOUT3_B_MARK,
 };
 
+/* - EtherAVB --------------------------------------------------------------- */
+static const unsigned int avb_link_pins[] = {
+	/* AVB_LINK */
+	RCAR_GP_PIN(2, 12),
+};
+static const unsigned int avb_link_mux[] = {
+	AVB_LINK_MARK,
+};
+static const unsigned int avb_magic_pins[] = {
+	/* AVB_MAGIC_ */
+	RCAR_GP_PIN(2, 10),
+};
+static const unsigned int avb_magic_mux[] = {
+	AVB_MAGIC_MARK,
+};
+static const unsigned int avb_phy_int_pins[] = {
+	/* AVB_PHY_INT */
+	RCAR_GP_PIN(2, 11),
+};
+static const unsigned int avb_phy_int_mux[] = {
+	AVB_PHY_INT_MARK,
+};
+static const unsigned int avb_mdc_pins[] = {
+	/* AVB_MDC */
+	RCAR_GP_PIN(2, 9),
+};
+static const unsigned int avb_mdc_mux[] = {
+	AVB_MDC_MARK,
+};
+static const unsigned int avb_avtp_pps_pins[] = {
+	/* AVB_AVTP_PPS */
+	RCAR_GP_PIN(2, 6),
+};
+static const unsigned int avb_avtp_pps_mux[] = {
+	AVB_AVTP_PPS_MARK,
+};
+static const unsigned int avb_avtp_match_a_pins[] = {
+	/* AVB_AVTP_MATCH_A */
+	RCAR_GP_PIN(2, 13),
+};
+static const unsigned int avb_avtp_match_a_mux[] = {
+	AVB_AVTP_MATCH_A_MARK,
+};
+static const unsigned int avb_avtp_capture_a_pins[] = {
+	/* AVB_AVTP_CAPTURE_A */
+	RCAR_GP_PIN(2, 14),
+};
+static const unsigned int avb_avtp_capture_a_mux[] = {
+	AVB_AVTP_CAPTURE_A_MARK,
+};
+static const unsigned int avb_avtp_match_b_pins[] = {
+	/*  AVB_AVTP_MATCH_B */
+	RCAR_GP_PIN(1, 8),
+};
+static const unsigned int avb_avtp_match_b_mux[] = {
+	AVB_AVTP_MATCH_B_MARK,
+};
+static const unsigned int avb_avtp_capture_b_pins[] = {
+	/* AVB_AVTP_CAPTURE_B */
+	RCAR_GP_PIN(1, 11),
+};
+static const unsigned int avb_avtp_capture_b_mux[] = {
+	AVB_AVTP_CAPTURE_B_MARK,
+};
+
 /* - I2C -------------------------------------------------------------------- */
 static const unsigned int i2c1_a_pins[] = {
 	/* SDA, SCL */
@@ -1977,6 +2042,15 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(audio_clkout2_b),
 	SH_PFC_PIN_GROUP(audio_clkout3_a),
 	SH_PFC_PIN_GROUP(audio_clkout3_b),
+	SH_PFC_PIN_GROUP(avb_link),
+	SH_PFC_PIN_GROUP(avb_magic),
+	SH_PFC_PIN_GROUP(avb_phy_int),
+	SH_PFC_PIN_GROUP(avb_mdc),
+	SH_PFC_PIN_GROUP(avb_avtp_pps),
+	SH_PFC_PIN_GROUP(avb_avtp_match_a),
+	SH_PFC_PIN_GROUP(avb_avtp_capture_a),
+	SH_PFC_PIN_GROUP(avb_avtp_match_b),
+	SH_PFC_PIN_GROUP(avb_avtp_capture_b),
 	SH_PFC_PIN_GROUP(i2c1_a),
 	SH_PFC_PIN_GROUP(i2c1_b),
 	SH_PFC_PIN_GROUP(i2c2_a),
@@ -2056,6 +2130,18 @@ static const char * const audio_clk_groups[] = {
 	"audio_clkout3_b",
 };
 
+static const char * const avb_groups[] = {
+	"avb_link",
+	"avb_magic",
+	"avb_phy_int",
+	"avb_mdc",
+	"avb_avtp_pps",
+	"avb_avtp_match_a",
+	"avb_avtp_capture_a",
+	"avb_avtp_match_b",
+	"avb_avtp_capture_b",
+};
+
 static const char * const i2c1_groups[] = {
 	"i2c1_a",
 	"i2c1_b",
@@ -2145,6 +2231,7 @@ static const char * const ssi_groups[] = {
 
 static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(audio_clk),
+	SH_PFC_FUNCTION(avb),
 	SH_PFC_FUNCTION(i2c1),
 	SH_PFC_FUNCTION(i2c2),
 	SH_PFC_FUNCTION(i2c6),