omap: use common initialization for PMIC i2c bus

Introduce omap_pmic_init that registers i2c bus and PMIC device on that
bus and add omap2/3/4 wrappers for common cases.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-omap3logic.c b/arch/arm/mach-omap2/board-omap3logic.c
index a49e6cf..60d9be4 100644
--- a/arch/arm/mach-omap2/board-omap3logic.c
+++ b/arch/arm/mach-omap2/board-omap3logic.c
@@ -37,6 +37,7 @@
 #include "hsmmc.h"
 #include "timer-gp.h"
 #include "control.h"
+#include "common-board-devices.h"
 
 #include <plat/mux.h>
 #include <plat/board.h>
@@ -93,19 +94,9 @@
 	.vmmc1		= &omap3logic_vmmc1,
 };
 
-static struct i2c_board_info __initdata omap3logic_i2c_boardinfo[] = {
-	{
-		I2C_BOARD_INFO("twl4030", 0x48),
-		.flags = I2C_CLIENT_WAKE,
-		.irq = INT_34XX_SYS_NIRQ,
-		.platform_data = &omap3logic_twldata,
-	},
-};
-
 static int __init omap3logic_i2c_init(void)
 {
-	omap_register_i2c_bus(1, 2600, omap3logic_i2c_boardinfo,
-				ARRAY_SIZE(omap3logic_i2c_boardinfo));
+	omap3_pmic_init("twl4030", &omap3logic_twldata);
 	return 0;
 }