[PATCH 01/03] pinctrl: sh-pfc: r7s72100 SCIF2 port3 support

[Magnus Damm <magnus.damm@gmail.com>]

From: Magnus Damm <damm@opensource.se>

Add support for SCIF2 port3 pin functions SCK, TXD and RXD to the
r7s72100 PINCTRL code. There are two possible pins that can be used
for TXD (Port 3 Pin 0 Function 6 and Port 3 Pin 1 Function 4) and
because of that are the data pins broken out in separate TXD and RXD.

This format is similar to other sh-pfc code, but a following patch
converts this to less verbose and less readable code.

Signed-off-by: Magnus Damm <damm@opensource.se>
---

 drivers/pinctrl/sh-pfc/pfc-r7s72100.c |   41 +++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

--- 0002/drivers/pinctrl/sh-pfc/pfc-r7s72100.c
+++ work/drivers/pinctrl/sh-pfc/pfc-r7s72100.c	2013-11-27 15:22:16.000000000 +0900
@@ -103,10 +103,51 @@ static struct sh_pfc_pin pinmux_pins[]  	_P_ALL(_P_GPIO),
 };
 
+/* - SCIF2 ------------------------------------------------------------------ */
+static const unsigned int scif2_txd_p3_0_pins[] = {
+	/* TX */
+	RZ_PORT_PIN(3, 0),
+};
+static const unsigned int scif2_txd_p3_0_mux[] = {
+	P_3_0_MARK_FN6,
+};
+static const unsigned int scif2_txd_p3_1_pins[] = {
+	/* TX */
+	RZ_PORT_PIN(3, 1),
+};
+static const unsigned int scif2_txd_p3_1_mux[] = {
+	P_3_1_MARK_FN4,
+};
+static const unsigned int scif2_rxd_p3_2_pins[] = {
+	/* RX */
+	RZ_PORT_PIN(3, 2),
+};
+static const unsigned int scif2_rxd_p3_2_mux[] = {
+	P_3_2_MARK_FN4,
+};
+static const unsigned int scif2_clk_p3_0_pins[] = {
+	/* SCK */
+	RZ_PORT_PIN(3, 0),
+};
+static const unsigned int scif2_clk_p3_0_mux[] = {
+	P_3_0_MARK_FN4,
+};
+
 static const struct sh_pfc_pin_group pinmux_groups[] = {
+	SH_PFC_PIN_GROUP(scif2_txd_p3_0),
+	SH_PFC_PIN_GROUP(scif2_txd_p3_1),
+	SH_PFC_PIN_GROUP(scif2_rxd_p3_2),
+	SH_PFC_PIN_GROUP(scif2_clk_p3_0),
 };
 
+static const char * const scif2_groups[] = {
+	"scif2_txd_p3_0",
+	"scif2_txd_p3_1",
+	"scif2_rxd_p3_2",
+	"scif2_clk_p3_0",
+};
 static const struct sh_pfc_function pinmux_functions[] = {
+	SH_PFC_FUNCTION(scif2),
 };
 
 #define PFC_REG(idx, name, reg)						\