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| author | Tero Kristo <tero.kristo@nokia.com> | 2009-03-05 16:32:23 +0200 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2009-08-05 09:10:53 -0700 |
| commit | 2466211e5debd205fc550d871fe0ab9b9a6d02ed (patch) | |
| tree | c4c0c9e44a9a36c3695bf1c13444093263df2a81 /arch/arm/plat-omap/include/mach/serial.h | |
| parent | 4789998a30d845d94a7595076d1392ffd5a9d39e (diff) | |
| download | lwn-2466211e5debd205fc550d871fe0ab9b9a6d02ed.tar.gz lwn-2466211e5debd205fc550d871fe0ab9b9a6d02ed.zip | |
OMAP3: Fixed crash bug with serial + suspend
It was possible for an unhandled interrupt to occur if there was incoming
serial traffic during wakeup from suspend. This was caused by the code
in arch-arm/mach-omap2/serial.c keeping interrupt enabled all the time,
but not acking its interrupts. Applies on top of PM branch.
Use the PM begin/end hooks to ensure that the "serial idle" interrupts
are disabled during the suspend path. Also, since begin/end hooks are
now used, use the suspend_state that is passed in the begin hook instead
of the enter hook as per the platform_suspend_ops docs.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/plat-omap/include/mach/serial.h')
| -rw-r--r-- | arch/arm/plat-omap/include/mach/serial.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/mach/serial.h b/arch/arm/plat-omap/include/mach/serial.h index 13abd02d1527..def0529c75eb 100644 --- a/arch/arm/plat-omap/include/mach/serial.h +++ b/arch/arm/plat-omap/include/mach/serial.h @@ -59,6 +59,7 @@ extern void omap_uart_check_wakeup(void); extern void omap_uart_prepare_suspend(void); extern void omap_uart_prepare_idle(int num); extern void omap_uart_resume_idle(int num); +extern void omap_uart_enable_irqs(int enable); #endif #endif |