omap: Eliminate OMAP_MAX_NR_PORTS

Eliminate OMAP_MAX_NR_PORTS

Note that also the null terminator entry for omap1
serial_platform_data needs to be now removed to avoid
oopsing.

Note that mach-omap1 uses struct plat_serial8250_port
array, which requires a null terminator at the end,
and that's why we need to use ARRAY_SIZE - 1. This
is not needed on mach-omap2 as the array used is
struct omap_uart_state, and does not use a null
terminator.

Signed-off-by: Alexander Shishkin <virtuoso@slind.org>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

3 files changed, 4 insertions, 8 deletions

diff --git a/arch/arm/mach-omap1/serial.c b/arch/arm/mach-omap1/serial.c
index 5ebf0946c76a..6e5207c81cf4 100644
--- a/arch/arm/mach-omap1/serial.c
+++ b/arch/arm/mach-omap1/serial.c
@@ -120,7 +120,7 @@ void __init omap_serial_init(void)
                 serial_platform_data[2].uartclk = OMAP1510_BASE_BAUD * 16;
         }
 
-        for (i = 0; i < OMAP_MAX_NR_PORTS; i++) {
+        for (i = 0; i < ARRAY_SIZE(serial_platform_data) - 1; i++) {
 
                 /* Static mapping, never released */
                 serial_platform_data[i].membase =
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 72df1b188135..2e17b57f5b23 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -533,7 +533,7 @@ static inline void omap_uart_idle_init(struct omap_uart_state *uart) {}
 #define DEV_CREATE_FILE(dev, attr)
 #endif /* CONFIG_PM */
 
-static struct omap_uart_state omap_uart[OMAP_MAX_NR_PORTS] = {
+static struct omap_uart_state omap_uart[] = {
         {
                 .pdev = {
                         .name                   = "serial8250",
@@ -583,7 +583,7 @@ void __init omap_serial_early_init(void)
          * if not needed.
          */
 
-        for (i = 0; i < OMAP_MAX_NR_PORTS; i++) {
+        for (i = 0; i < ARRAY_SIZE(omap_uart); i++) {
                 struct omap_uart_state *uart = &omap_uart[i];
                 struct platform_device *pdev = &uart->pdev;
                 struct device *dev = &pdev->dev;
@@ -635,7 +635,7 @@ void __init omap_serial_init(void)
 {
         int i;
 
-        for (i = 0; i < OMAP_MAX_NR_PORTS; i++) {
+        for (i = 0; i < ARRAY_SIZE(omap_uart); i++) {
                 struct omap_uart_state *uart = &omap_uart[i];
                 struct platform_device *pdev = &uart->pdev;
                 struct device *dev = &pdev->dev;
diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h
index e249186d26e2..9951345a25d6 100644
--- a/arch/arm/plat-omap/include/plat/serial.h
+++ b/arch/arm/plat-omap/include/plat/serial.h
@@ -20,26 +20,22 @@
 #define OMAP_UART1_BASE         0xfffb0000
 #define OMAP_UART2_BASE         0xfffb0800
 #define OMAP_UART3_BASE         0xfffb9800
-#define OMAP_MAX_NR_PORTS       3
 #elif defined(CONFIG_ARCH_OMAP2)
 /* OMAP2 serial ports */
 #define OMAP_UART1_BASE         0x4806a000
 #define OMAP_UART2_BASE         0x4806c000
 #define OMAP_UART3_BASE         0x4806e000
-#define OMAP_MAX_NR_PORTS       3
 #elif defined(CONFIG_ARCH_OMAP3)
 /* OMAP3 serial ports */
 #define OMAP_UART1_BASE         0x4806a000
 #define OMAP_UART2_BASE         0x4806c000
 #define OMAP_UART3_BASE         0x49020000
-#define OMAP_MAX_NR_PORTS       3
 #elif defined(CONFIG_ARCH_OMAP4)
 /* OMAP4 serial ports */
 #define OMAP_UART1_BASE         0x4806a000
 #define OMAP_UART2_BASE         0x4806c000
 #define OMAP_UART3_BASE         0x48020000
 #define OMAP_UART4_BASE         0x4806e000
-#define OMAP_MAX_NR_PORTS       4
 #endif
 
 #define OMAP1510_BASE_BAUD      (12000000/16)