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| author | Haojian Zhuang <haojian.zhuang@marvell.com> | 2010-02-03 10:01:18 -0500 |
|---|---|---|
| committer | Eric Miao <eric.y.miao@gmail.com> | 2010-03-02 07:40:57 +0800 |
| commit | df0c382436df5bdd74030baafa294b75c231ec8c (patch) | |
| tree | dbcf772218fcc1dde83ebb08395f1d1fa6326e51 /arch/arm/mach-mmp/irq-mmp2.c | |
| parent | ce0ac4235972cc2533e4e2095396208b59117c57 (diff) | |
| download | kernel_samsung_smdk4412-df0c382436df5bdd74030baafa294b75c231ec8c.zip kernel_samsung_smdk4412-df0c382436df5bdd74030baafa294b75c231ec8c.tar.gz kernel_samsung_smdk4412-df0c382436df5bdd74030baafa294b75c231ec8c.tar.bz2 | |
[ARM] mmp2: add handling on PMIC IRQ
Since PMIC INT pin is a special pin of CPU, the status of PMIC INT pin needs
to be cleared after PMIC IRQ occured. Now append the clear operation in
irq chip handler.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm/mach-mmp/irq-mmp2.c')
| -rw-r--r-- | arch/arm/mach-mmp/irq-mmp2.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm/mach-mmp/irq-mmp2.c b/arch/arm/mach-mmp/irq-mmp2.c index 3ae1c54..b187c02 100644 --- a/arch/arm/mach-mmp/irq-mmp2.c +++ b/arch/arm/mach-mmp/irq-mmp2.c @@ -42,6 +42,12 @@ static struct irq_chip icu_irq_chip = { .unmask = icu_unmask_irq, }; +static void pmic_irq_ack(unsigned int irq) +{ + if (irq == IRQ_MMP2_PMIC) + mmp2_clear_pmic_int(); +} + #define SECOND_IRQ_MASK(_name_, irq_base, prefix) \ static void _name_##_mask_irq(unsigned int irq) \ { \ @@ -82,7 +88,6 @@ SECOND_IRQ_DEMUX(_name_, irq_base, prefix) \ static struct irq_chip _name_##_irq_chip = { \ .name = #_name_, \ .mask = _name_##_mask_irq, \ - .mask_ack = _name_##_mask_irq, \ .unmask = _name_##_unmask_irq, \ } @@ -126,6 +131,11 @@ void __init mmp2_init_icu(void) } } + /* NOTE: IRQ_MMP2_PMIC requires the PMIC MFPR register + * to be written to clear the interrupt + */ + pmic_irq_chip.ack = pmic_irq_ack; + init_mux_irq(&pmic_irq_chip, IRQ_MMP2_PMIC_BASE, 2); init_mux_irq(&rtc_irq_chip, IRQ_MMP2_RTC_BASE, 2); init_mux_irq(&twsi_irq_chip, IRQ_MMP2_TWSI_BASE, 5); |