ARM: OMAP: Fix i2c cmdline initcall for multiplatform

We only want this initcall to run when the kernel is
booted on omap SoCs. Fix the issue by initializing the
the initcall from separately for omap1 and omap2+.

This fixes the issue for omap2+ multiplatform configs
as we are using omap_subsys_initcall there.

Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap1/i2c.c b/arch/arm/mach-omap1/i2c.c
index faca808..7f5761c 100644
--- a/arch/arm/mach-omap1/i2c.c
+++ b/arch/arm/mach-omap1/i2c.c
@@ -91,3 +91,9 @@
 
 	return platform_device_register(pdev);
 }
+
+static  int __init omap_i2c_cmdline(void)
+{
+	return omap_register_i2c_bus_cmdline();
+}
+subsys_initcall(omap_i2c_cmdline);
diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c
index b9074dd..8fd9857 100644
--- a/arch/arm/mach-omap2/i2c.c
+++ b/arch/arm/mach-omap2/i2c.c
@@ -185,3 +185,8 @@
 	return PTR_RET(pdev);
 }
 
+static  int __init omap_i2c_cmdline(void)
+{
+	return omap_register_i2c_bus_cmdline();
+}
+omap_subsys_initcall(omap_i2c_cmdline);
diff --git a/arch/arm/plat-omap/i2c.c b/arch/arm/plat-omap/i2c.c
index f9df624..58213d9 100644
--- a/arch/arm/plat-omap/i2c.c
+++ b/arch/arm/plat-omap/i2c.c
@@ -68,7 +68,7 @@
  * Register busses defined in command line but that are not registered with
  * omap_register_i2c_bus from board initialization code.
  */
-static int __init omap_register_i2c_bus_cmdline(void)
+int __init omap_register_i2c_bus_cmdline(void)
 {
 	int i, err = 0;
 
@@ -83,7 +83,6 @@
 out:
 	return err;
 }
-subsys_initcall(omap_register_i2c_bus_cmdline);
 
 /**
  * omap_register_i2c_bus - register I2C bus with device descriptors
diff --git a/arch/arm/plat-omap/include/plat/i2c.h b/arch/arm/plat-omap/include/plat/i2c.h
index 7a9028c..810629d 100644
--- a/arch/arm/plat-omap/include/plat/i2c.h
+++ b/arch/arm/plat-omap/include/plat/i2c.h
@@ -32,6 +32,7 @@
 extern int omap_register_i2c_bus(int bus_id, u32 clkrate,
 				 struct i2c_board_info const *info,
 				 unsigned len);
+extern int omap_register_i2c_bus_cmdline(void);
 #else
 static inline int omap_register_i2c_bus(int bus_id, u32 clkrate,
 				 struct i2c_board_info const *info,
@@ -39,6 +40,11 @@
 {
 	return 0;
 }
+
+static inline int omap_register_i2c_bus_cmdline(void)
+{
+	return 0;
+}
 #endif
 
 struct omap_hwmod;