[ARM] 4694/1: IXP4xx: Update clockevent support for shutdown and resume
Add proper support for CLOCK_EVT_MODE_RESUME and in the process fix
CLOCK_EVT_MODE_SHUTDOWN so that only the enable bits are toggled for both.
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index c1271c4..f6d66dc 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -442,7 +442,8 @@
static void ixp4xx_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt)
{
- unsigned long opts, osrt = *IXP4XX_OSRT1 & ~IXP4XX_OST_RELOAD_MASK;
+ unsigned long opts = *IXP4XX_OSRT1 & IXP4XX_OST_RELOAD_MASK;
+ unsigned long osrt = *IXP4XX_OSRT1 & ~IXP4XX_OST_RELOAD_MASK;
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
@@ -455,12 +456,15 @@
opts = IXP4XX_OST_ENABLE | IXP4XX_OST_ONE_SHOT;
break;
case CLOCK_EVT_MODE_SHUTDOWN:
+ opts &= ~IXP4XX_OST_ENABLE;
+ break;
+ case CLOCK_EVT_MODE_RESUME:
+ opts |= IXP4XX_OST_ENABLE;
+ break;
case CLOCK_EVT_MODE_UNUSED:
default:
osrt = opts = 0;
break;
- case CLOCK_EVT_MODE_RESUME:
- break;
}
*IXP4XX_OSRT1 = osrt | opts;