From 0baada2742a42390a2ebed09e07e1fab518db884 Mon Sep 17 00:00:00 2001 From: Ben Dooks Date: Sun, 23 Dec 2007 03:09:33 +0100 Subject: [ARM] 4730/1: S3C2412: Ensure the PWRCFG has the right mode for RTC wake Ensure that if the RTC IRQ is not selected for wake in the base configuration, then the PWRCFG has the same value set in it. Signed-off-by: Ben Dooks Signed-off-by: Russell King --- arch/arm/mach-s3c2412/irq.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'arch/arm/mach-s3c2412') diff --git a/arch/arm/mach-s3c2412/irq.c b/arch/arm/mach-s3c2412/irq.c index e9d0c769f5d..cc1917bf952 100644 --- a/arch/arm/mach-s3c2412/irq.c +++ b/arch/arm/mach-s3c2412/irq.c @@ -33,6 +33,7 @@ #include #include +#include #include #include @@ -153,6 +154,22 @@ static struct irq_chip s3c2412_irq_cfsdi = { .unmask = s3c2412_irq_cfsdi_unmask, }; +static int s3c2412_irq_rtc_wake(unsigned int irqno, unsigned int state) +{ + unsigned long pwrcfg; + + pwrcfg = __raw_readl(S3C2412_PWRCFG); + if (state) + pwrcfg &= ~S3C2412_PWRCFG_RTC_MASKIRQ; + else + pwrcfg |= S3C2412_PWRCFG_RTC_MASKIRQ; + __raw_writel(pwrcfg, S3C2412_PWRCFG); + + return s3c_irq_chip.set_wake(irqno, state); +} + +static struct irq_chip s3c2412_irq_rtc_chip; + static int s3c2412_irq_add(struct sys_device *sysdev) { unsigned int irqno; @@ -173,6 +190,13 @@ static int s3c2412_irq_add(struct sys_device *sysdev) set_irq_flags(irqno, IRQF_VALID); } + /* change RTC IRQ's set wake method */ + + s3c2412_irq_rtc_chip = s3c_irq_chip; + s3c2412_irq_rtc_chip.set_wake = s3c2412_irq_rtc_wake; + + set_irq_chip(IRQ_RTC, &s3c2412_irq_rtc_chip); + return 0; } -- cgit v1.2.3