Triton BCI driver for OMAP3430 - USB changes

This patch calls the functionality supported by the TWL4030 battery charger
interface driver
to enable/disable battery charging upon cable attach/detach.

Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/i2c/chips/twl4030-usb.c

@@ -601,10 +601,13 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
 		goto done;
 	}
 
-	if (val & USB_PRES_RISING)
+	if (val & USB_PRES_RISING) {
 		twl4030_phy_resume();
-	else
+		twl4030charger_usb_en(1);
+	} else {
+		twl4030charger_usb_en(0);
 		twl4030_phy_suspend(0);
+	}
 
 	ret = IRQ_HANDLED;
 

include/linux/i2c/twl4030.h

@@ -127,4 +127,11 @@ int twl4030_set_gpio_edge_ctrl(int gpio, int edge);
 int twl4030_set_gpio_debounce(int gpio, int enable);
 int twl4030_free_gpio(int gpio);
 
+#if defined(CONFIG_TWL4030_BCI_BATTERY) || \
+	defined(CONFIG_TWL4030_BCI_BATTERY_MODULE)
+	extern int twl4030charger_usb_en(int enable);
+#else
+	static inline int twl4030charger_usb_en(int enable) { return 0; }
+#endif
+
 #endif /* End of __TWL4030_H */