Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
  omap: Disable serial port autoidle by default
  omap: Fix access to already released memory in clk_debugfs_register_one()
  omap: Fix arch/arm/mach-omap2/mux.c: Off by one error
  omap: Fix 3630 mux errors
  OMAP2/3: GPMC: ensure valid clock pointer
  OMAP2/3: IRQ: ensure valid base address
  ARCH OMAP : enable ARCH_HAS_HOLES_MEMORYMODEL for OMAP
  omap: Remove old unused defines for OMAP_32KSYNCT_BASE
  omap: define _toggle_gpio_edge_triggering only for OMAP1

1 files changed, 9 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 8c964bec8159..e10a02df6e1d 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -36,7 +36,13 @@
 #define UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV     0x52
 #define UART_OMAP_WER           0x17    /* Wake-up enable register */
 
-#define DEFAULT_TIMEOUT (5 * HZ)
+/*
+ * NOTE: By default the serial timeout is disabled as it causes lost characters
+ * over the serial ports. This means that the UART clocks will stay on until
+ * disabled via sysfs. This also causes that any deeper omap sleep states are
+ * blocked. 
+ */
+#define DEFAULT_TIMEOUT 0
 
 struct omap_uart_state {
         int num;
@@ -422,7 +428,8 @@ static void omap_uart_idle_init(struct omap_uart_state *uart)
         uart->timeout = DEFAULT_TIMEOUT;
         setup_timer(&uart->timer, omap_uart_idle_timer,
                     (unsigned long) uart);
-        mod_timer(&uart->timer, jiffies + uart->timeout);
+        if (uart->timeout)
+                mod_timer(&uart->timer, jiffies + uart->timeout);
         omap_uart_smart_idle_enable(uart, 0);
 
         if (cpu_is_omap34xx()) {