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[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 <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ben Dooks 2007-12-23 03:09:33 +01:00 committed by Russell King
parent 8e3007a0e8
commit 0baada2742
3 changed files with 27 additions and 1 deletions
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24
arch/arm/mach-s3c2412/irq.c
View File

@ -33,6 +33,7 @@
#include <asm/arch/regs-irq.h>
#include <asm/arch/regs-gpio.h>
#include <asm/arch/regs-power.h>
#include <asm/plat-s3c24xx/cpu.h>
#include <asm/plat-s3c24xx/irq.h>
@ -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;
}

2
arch/arm/plat-s3c24xx/irq.c
View File

@ -187,7 +187,7 @@ struct irq_chip s3c_irq_level_chip = {
.set_wake = s3c_irq_wake
};
static struct irq_chip s3c_irq_chip = {
struct irq_chip s3c_irq_chip = {
.name = "s3c",
.ack = s3c_irq_ack,
.mask = s3c_irq_mask,

2
include/asm-arm/plat-s3c24xx/irq.h
View File

@ -15,7 +15,9 @@
#define EXTINT_OFF (IRQ_EINT4 - 4)
/* these are exported for arch/arm/mach-* usage */
extern struct irq_chip s3c_irq_level_chip;
extern struct irq_chip s3c_irq_chip;
static inline void
s3c_irqsub_mask(unsigned int irqno, unsigned int parentbit,