ehci-mxc: Clean up

Clean up ehci-mxc:
 - Remove useless #if's.
 - Fix identation.
 - Issue a #error if used with an unsupported platform.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>

drivers/usb/host/ehci-mxc.c

@@ -28,14 +28,11 @@
 
 #define USBCTRL_OTGBASE_OFFSET	0x600
 
-#ifdef CONFIG_MX25
 #define MX25_USB_CTRL_IP_PUE_DOWN_BIT	(1<<6)
 #define MX25_USB_CTRL_HSTD_BIT		(1<<5)
 #define MX25_USB_CTRL_USBTE_BIT		(1<<4)
 #define MX25_USB_CTRL_OCPOL_OTG_BIT	(1<<3)
-#endif
 
-#ifdef CONFIG_MX31
 #define MX31_OTG_SIC_SHIFT	29
 #define MX31_OTG_SIC_MASK	(0x3 << MX31_OTG_SIC_SHIFT)
 #define MX31_OTG_PM_BIT		(1 << 24)
@@ -49,59 +46,56 @@
 #define MX31_H1_SIC_MASK	(0x3 << MX31_H1_SIC_SHIFT)
 #define MX31_H1_PM_BIT		(1 << 8)
 #define MX31_H1_DT_BIT		(1 << 4)
-#endif
 
 static int mxc_set_usbcontrol(int port, unsigned int flags)
 {
 	unsigned int v;
 
-#ifdef CONFIG_MX25
+#if defined(CONFIG_MX25)
 	v = MX25_USB_CTRL_IP_PUE_DOWN_BIT | MX25_USB_CTRL_HSTD_BIT |
 		MX25_USB_CTRL_USBTE_BIT | MX25_USB_CTRL_OCPOL_OTG_BIT;
-#endif
+#elif defined(CONFIG_MX31)
+	v = readl(IMX_USB_BASE + USBCTRL_OTGBASE_OFFSET);
 
-#ifdef CONFIG_MX31
-		v = readl(IMX_USB_BASE + USBCTRL_OTGBASE_OFFSET);
-
-		switch (port) {
-		case 0:	/* OTG port */
-			v &= ~(MX31_OTG_SIC_MASK | MX31_OTG_PM_BIT);
-			v |= (flags & MXC_EHCI_INTERFACE_MASK)
-					<< MX31_OTG_SIC_SHIFT;
-			if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
-				v |= MX31_OTG_PM_BIT;
-
-			break;
-		case 1: /* H1 port */
-			v &= ~(MX31_H1_SIC_MASK | MX31_H1_PM_BIT |
-				MX31_H1_DT_BIT);
-			v |= (flags & MXC_EHCI_INTERFACE_MASK)
-						<< MX31_H1_SIC_SHIFT;
-			if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
-				v |= MX31_H1_PM_BIT;
-
-			if (!(flags & MXC_EHCI_TTL_ENABLED))
-				v |= MX31_H1_DT_BIT;
-
-			break;
-		case 2:	/* H2 port */
-			v &= ~(MX31_H2_SIC_MASK | MX31_H2_PM_BIT |
-				MX31_H2_DT_BIT);
-			v |= (flags & MXC_EHCI_INTERFACE_MASK)
-						<< MX31_H2_SIC_SHIFT;
-			if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
-				v |= MX31_H2_PM_BIT;
-
-			if (!(flags & MXC_EHCI_TTL_ENABLED))
-				v |= MX31_H2_DT_BIT;
-
-			break;
-		default:
-			return -EINVAL;
-		}
-#endif
+	switch (port) {
+	case 0:	/* OTG port */
+		v &= ~(MX31_OTG_SIC_MASK | MX31_OTG_PM_BIT);
+		v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX31_OTG_SIC_SHIFT;
+
+		if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
+			v |= MX31_OTG_PM_BIT;
+
+		break;
+	case 1: /* H1 port */
+		v &= ~(MX31_H1_SIC_MASK | MX31_H1_PM_BIT | MX31_H1_DT_BIT);
+		v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX31_H1_SIC_SHIFT;
 
+		if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
+			v |= MX31_H1_PM_BIT;
+
+		if (!(flags & MXC_EHCI_TTL_ENABLED))
+			v |= MX31_H1_DT_BIT;
+
+		break;
+	case 2:	/* H2 port */
+		v &= ~(MX31_H2_SIC_MASK | MX31_H2_PM_BIT | MX31_H2_DT_BIT);
+		v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX31_H2_SIC_SHIFT;
+
+		if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
+			v |= MX31_H2_PM_BIT;
+
+		if (!(flags & MXC_EHCI_TTL_ENABLED))
+			v |= MX31_H2_DT_BIT;
+
+		break;
+	default:
+		return -EINVAL;
+	}
+#else
+#error MXC EHCI USB driver not supported on this platform
+#endif
 	writel(v, IMX_USB_BASE + USBCTRL_OTGBASE_OFFSET);
+
 	return 0;
 }