[ARM] omap: improve is_omap_port()

Make is_omap_port() take the uart_8250_port structure so it can do
whatever test it desires.  Convert the test to compare the physical
addresses rather than virtual addresses.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/plat-omap/include/mach/serial.h b/arch/arm/plat-omap/include/mach/serial.h
index cc6bfa5..515b89b 100644 (file)
--- a/arch/arm/plat-omap/include/mach/serial.h
+++ b/arch/arm/plat-omap/include/mach/serial.h
@@ -26,12 +26,12 @@
 #define OMAP1510_BASE_BAUD     (12000000/16)
 #define OMAP16XX_BASE_BAUD     (48000000/16)
 
-#define is_omap_port(p)        ({int __ret = 0;                        \
-                       if (p == IO_ADDRESS(OMAP_UART1_BASE) || \
-                           p == IO_ADDRESS(OMAP_UART2_BASE) || \
-                           p == IO_ADDRESS(OMAP_UART3_BASE))   \
-                               __ret = 1;                      \
-                       __ret;                                  \
+#define is_omap_port(pt)       ({int __ret = 0;                        \
+                       if ((pt)->port.mapbase == OMAP_UART1_BASE ||    \
+                           (pt)->port.mapbase == OMAP_UART2_BASE ||    \
+                           (pt)->port.mapbase == OMAP_UART3_BASE)      \
+                               __ret = 1;                              \
+                       __ret;                                          \
                        })
 
 #endif

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 9ccc563..47a6096 100644 (file)
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2213,7 +2213,7 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
 
 #ifdef CONFIG_ARCH_OMAP15XX
        /* Workaround to enable 115200 baud on OMAP1510 internal ports */
-       if (cpu_is_omap1510() && is_omap_port((unsigned int)up->port.membase)) {
+       if (cpu_is_omap1510() && is_omap_port(up)) {
                if (baud == 115200) {
                        quot = 1;
                        serial_out(up, UART_OMAP_OSC_12M_SEL, 1);