tty/serial/8250: Make omap hardware workarounds local to 8250.h

This allows us to get rid of the ifdefs in 8250.c.

Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h
index 5a76f9c..3b4ea84 100644
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -106,3 +106,39 @@
 static inline void serial8250_pnp_exit(void) { }
 #endif
 
+#ifdef CONFIG_ARCH_OMAP1
+static inline int is_omap1_8250(struct uart_8250_port *pt)
+{
+	int res;
+
+	switch (pt->port.mapbase) {
+	case OMAP1_UART1_BASE:
+	case OMAP1_UART2_BASE:
+	case OMAP1_UART3_BASE:
+		res = 1;
+		break;
+	default:
+		res = 0;
+		break;
+	}
+
+	return res;
+}
+
+static inline int is_omap1510_8250(struct uart_8250_port *pt)
+{
+	if (!cpu_is_omap1510())
+		return 0;
+
+	return is_omap1_8250(pt);
+}
+#else
+static inline int is_omap1_8250(struct uart_8250_port *pt)
+{
+	return 0;
+}
+static inline int is_omap1510_8250(struct uart_8250_port *pt)
+{
+	return 0;
+}
+#endif