omap4: Add i2c board support on omap4430 sdp platform

This patch adds the i2c board support for OMAP4430 SDP platform.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/configs/omap_4430sdp_defconfig

@@ -490,14 +490,58 @@ CONFIG_HW_RANDOM=y
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
 # CONFIG_TCG_TPM is not set
-# CONFIG_I2C is not set
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_COMPAT=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_HELPER_AUTO=y
+
+#
+# I2C Hardware Bus support
+#
+
+#
+# I2C system bus drivers (mostly embedded / system-on-chip)
+#
+# CONFIG_I2C_DESIGNWARE is not set
+# CONFIG_I2C_GPIO is not set
+# CONFIG_I2C_OCORES is not set
+CONFIG_I2C_OMAP=y
+# CONFIG_I2C_SIMTEC is not set
+# CONFIG_I2C_XILINX is not set
+
+#
+# External I2C/SMBus adapter drivers
+#
+# CONFIG_I2C_PARPORT_LIGHT is not set
+# CONFIG_I2C_TAOS_EVM is not set
+
+#
+# Other I2C/SMBus bus drivers
+#
+# CONFIG_I2C_PCA_PLATFORM is not set
+# CONFIG_I2C_STUB is not set
+# CONFIG_I2C_DEBUG_CORE is not set
+# CONFIG_I2C_DEBUG_ALGO is not set
+# CONFIG_I2C_DEBUG_BUS is not set
 CONFIG_SPI=y
+# CONFIG_SPI_DEBUG is not set
 CONFIG_SPI_MASTER=y
 
 #
 # SPI Master Controller Drivers
 #
+# CONFIG_SPI_BITBANG is not set
+# CONFIG_SPI_GPIO is not set
 CONFIG_SPI_OMAP24XX=y
+# CONFIG_SPI_XILINX is not set
+# CONFIG_SPI_DESIGNWARE is not set
+
+#
+# SPI Protocol Masters
+#
+# CONFIG_SPI_SPIDEV is not set
+# CONFIG_SPI_TLE62X0 is not set
 
 #
 # PPS support

arch/arm/mach-omap2/board-4430sdp.c

@@ -135,11 +135,23 @@ static struct omap_musb_board_data musb_board_data = {
 	.mode			= MUSB_PERIPHERAL,
 	.power			= 100,
 };
-
+static int __init omap4_i2c_init(void)
+{
+	/*
+	 * Phoenix Audio IC needs I2C1 to
+	 * start with 400 KHz or less
+	 */
+	omap_register_i2c_bus(1, 400, NULL, 0);
+	omap_register_i2c_bus(2, 400, NULL, 0);
+	omap_register_i2c_bus(3, 400, NULL, 0);
+	omap_register_i2c_bus(4, 400, NULL, 0);
+	return 0;
+}
 static void __init omap_4430sdp_init(void)
 {
 	int status;
 
+	omap4_i2c_init();
 	platform_add_devices(sdp4430_devices, ARRAY_SIZE(sdp4430_devices));
 	omap_serial_init();
 	/* OMAP4 SDP uses internal transceiver so register nop transceiver */