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| author | Haojian Zhuang <haojian.zhuang@marvell.com> | 2009-11-02 14:02:21 -0500 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2009-11-03 12:00:56 +0800 |
| commit | c482ae4dcf23fd241321595d71bbe8aee33eabf5 (patch) | |
| tree | fb523d3ec1a368124e3985dedcb9790f2374d84c /arch/arm/mach-pxa/irq.c | |
| parent | 902805dbdae016653768f7139d7b3ab36a20cc6d (diff) | |
| download | linux-c482ae4dcf23fd241321595d71bbe8aee33eabf5.tar.gz | |
[ARM] pxa: fix resume failure by saving/restoring IPRx registers
Since interrupt handler is changed to use interrupt priority, we also need to save and restore these interrupt controller registers in suspend/resume routine. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Tested-by: Daniel Mack <daniel@caiaq.de> Tested-by: Pavel Machek <pavel@ucw.cz> Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-pxa/irq.c')
| -rw-r--r-- | arch/arm/mach-pxa/irq.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c index d694ce289668..6112af431fa4 100644 --- a/arch/arm/mach-pxa/irq.c +++ b/arch/arm/mach-pxa/irq.c @@ -25,6 +25,8 @@ #include "generic.h" +#define MAX_INTERNAL_IRQS 128 + #define IRQ_BIT(n) (((n) - PXA_IRQ(0)) & 0x1f) #define _ICMR(n) (*((((n) - PXA_IRQ(0)) & ~0x1f) ? &ICMR2 : &ICMR)) #define _ICLR(n) (*((((n) - PXA_IRQ(0)) & ~0x1f) ? &ICLR2 : &ICLR)) @@ -122,6 +124,8 @@ void __init pxa_init_irq(int irq_nr, set_wake_t fn) { int irq, i; + BUG_ON(irq_nr > MAX_INTERNAL_IRQS); + pxa_internal_irq_nr = irq_nr; for (irq = PXA_IRQ(0); irq < PXA_IRQ(irq_nr); irq += 32) { @@ -149,7 +153,8 @@ void __init pxa_init_irq(int irq_nr, set_wake_t fn) } #ifdef CONFIG_PM -static unsigned long saved_icmr[2]; +static unsigned long saved_icmr[MAX_INTERNAL_IRQS/32]; +static unsigned long saved_ipr[MAX_INTERNAL_IRQS]; static int pxa_irq_suspend(struct sys_device *dev, pm_message_t state) { @@ -159,6 +164,8 @@ static int pxa_irq_suspend(struct sys_device *dev, pm_message_t state) saved_icmr[i] = _ICMR(irq); _ICMR(irq) = 0; } + for (i = 0; i < pxa_internal_irq_nr; i++) + saved_ipr[i] = IPR(i); return 0; } @@ -171,6 +178,8 @@ static int pxa_irq_resume(struct sys_device *dev) _ICMR(irq) = saved_icmr[i]; _ICLR(irq) = 0; } + for (i = 0; i < pxa_internal_irq_nr; i++) + IPR(i) = saved_ipr[i]; ICCR = 1; return 0; |