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| author | Tero Kristo <tero.kristo@nokia.com> | 2009-10-23 18:03:48 +0200 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2010-01-21 03:15:58 +0100 |
| commit | 2bbe3af3f1e1c1d0992c984e05d061ef5469edb4 (patch) | |
| tree | df2f0e2ef2561930d277d0923dd15012046646ff /arch/arm | |
| parent | Linux 2.6.33-rc4 (diff) | |
| download | linux-2bbe3af3f1e1c1d0992c984e05d061ef5469edb4.tar.xz linux-2bbe3af3f1e1c1d0992c984e05d061ef5469edb4.zip | |
OMAP3: PM: Ack pending interrupts before entering suspend
Suspending drivers may still generate interrupts just before their suspend is
completed. Any pending interrupts here will prevent sleep.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/irq.c | 6 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm34xx.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/irqs.h | 1 |
3 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c index e9bc782fa414..54c5f0dcd663 100644 --- a/arch/arm/mach-omap2/irq.c +++ b/arch/arm/mach-omap2/irq.c @@ -274,4 +274,10 @@ void omap_intc_restore_context(void) } /* MIRs are saved and restore with other PRCM registers */ } + +void omap3_intc_suspend(void) +{ + /* A pending interrupt would prevent OMAP from entering suspend */ + omap_ack_irq(0); +} #endif /* CONFIG_ARCH_OMAP3 */ diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index c6cc809afb79..b26418d55076 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -578,6 +578,8 @@ static int omap3_pm_suspend(void) } omap_uart_prepare_suspend(); + omap3_intc_suspend(); + omap_sram_idle(); restore: diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h index 97d6c50c3dcb..0082036f6a48 100644 --- a/arch/arm/plat-omap/include/plat/irqs.h +++ b/arch/arm/plat-omap/include/plat/irqs.h @@ -499,6 +499,7 @@ extern void omap_init_irq(void); extern int omap_irq_pending(void); void omap_intc_save_context(void); void omap_intc_restore_context(void); +void omap3_intc_suspend(void); #endif #include <mach/hardware.h> |