mfd: omap-usb-tll: HOST TLL platform driver

The platform driver for the TLL component of the OMAP USB host controller
is implemented. Depending on the TLL hardware revision , the TLL channels
are configured. The USB HS core driver uses this driver through exported
APIs from the TLL platform driver.
usb_tll_enable and usb_tll_disble are the exported APIs of the USB TLL
platform driver.

Signed-off-by: Keshava Munegowda <keshava_mgowda@ti.com>
Reviewed-by: Partha Basak <parthab@india.ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

arch/arm/plat-omap/include/plat/usb.h

@@ -64,6 +64,10 @@ struct usbhs_omap_platform_data {
 	struct ehci_hcd_omap_platform_data	*ehci_data;
 	struct ohci_hcd_omap_platform_data	*ohci_data;
 };
+
+struct usbtll_omap_platform_data {
+	enum usbhs_omap_port_mode		port_mode[OMAP3_HS_USB_PORTS];
+};
 /*-------------------------------------------------------------------------*/
 
 struct omap_musb_board_data {
@@ -82,6 +86,8 @@ enum musb_interface    {MUSB_INTERFACE_ULPI, MUSB_INTERFACE_UTMI};
 extern void usb_musb_init(struct omap_musb_board_data *board_data);
 
 extern void usbhs_init(const struct usbhs_omap_board_data *pdata);
+extern int omap_tll_enable(void);
+extern int omap_tll_disable(void);
 
 extern int omap4430_phy_power(struct device *dev, int ID, int on);
 extern int omap4430_phy_set_clk(struct device *dev, int on);

drivers/mfd/Kconfig

@@ -897,7 +897,7 @@ config MFD_WL1273_CORE
 	  audio codec.
 
 config MFD_OMAP_USB_HOST
-	bool "Support OMAP USBHS core driver"
+	bool "Support OMAP USBHS core and TLL driver"
 	depends on USB_EHCI_HCD_OMAP || USB_OHCI_HCD_OMAP3
 	default y
 	help

drivers/mfd/Makefile

@@ -120,7 +120,7 @@ obj-$(CONFIG_MFD_TPS6586X)	+= tps6586x.o
 obj-$(CONFIG_MFD_VX855)		+= vx855.o
 obj-$(CONFIG_MFD_WL1273_CORE)	+= wl1273-core.o
 obj-$(CONFIG_MFD_CS5535)	+= cs5535-mfd.o
-obj-$(CONFIG_MFD_OMAP_USB_HOST)	+= omap-usb-host.o
+obj-$(CONFIG_MFD_OMAP_USB_HOST)	+= omap-usb-host.o omap-usb-tll.o
 obj-$(CONFIG_MFD_PM8921_CORE) 	+= pm8921-core.o
 obj-$(CONFIG_MFD_PM8XXX_IRQ) 	+= pm8xxx-irq.o
 obj-$(CONFIG_TPS65911_COMPARATOR)	+= tps65911-comparator.o