ARM: OMAP4: add _dev_attr_ to ocp2scp for representing usb_phy

In order to reflect devices(usb_phy) attached to ocp2scp bus, ocp2scp
is assigned a device attribute to represent the attached devices.

This is needed to fix MUSB regression caused by commit c9e4412a
(arm: omap: phy: remove unused functions from omap-phy-internal.c)

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Benoit Cousson <b-cousson@ti.com>
[tony@atomide.com: updated comments for regression info]
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/omap_hwmod_44xx_data.c

@@ -21,6 +21,7 @@
 #include <linux/io.h>
 #include <linux/platform_data/gpio-omap.h>
 #include <linux/power/smartreflex.h>
+#include <linux/platform_data/omap_ocp2scp.h>
 
 #include <plat/omap_hwmod.h>
 #include <plat/i2c.h>
@@ -2681,6 +2682,32 @@ static struct omap_hwmod_class omap44xx_ocp2scp_hwmod_class = {
 	.sysc	= &omap44xx_ocp2scp_sysc,
 };
 
+/* ocp2scp dev_attr */
+static struct resource omap44xx_usb_phy_and_pll_addrs[] = {
+	{
+		.name		= "usb_phy",
+		.start		= 0x4a0ad080,
+		.end		= 0x4a0ae000,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		/* XXX: Remove this once control module driver is in place */
+		.name		= "ctrl_dev",
+		.start		= 0x4a002300,
+		.end		= 0x4a002303,
+		.flags		= IORESOURCE_MEM,
+	},
+	{ }
+};
+
+static struct omap_ocp2scp_dev ocp2scp_dev_attr[] = {
+	{
+		.drv_name       = "omap-usb2",
+		.res		= omap44xx_usb_phy_and_pll_addrs,
+	},
+	{ }
+};
+
 /* ocp2scp_usb_phy */
 static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
 	.name		= "ocp2scp_usb_phy",
@@ -2694,6 +2721,7 @@ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
 			.modulemode   = MODULEMODE_HWCTRL,
 		},
 	},
+	.dev_attr	= ocp2scp_dev_attr,
 };
 
 /*