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[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>
This commit is contained in:
Kevin Hilman 2007-12-12 00:32:58 +01:00 committed by Russell King
parent 41a9e68071
commit 553876c802
1 changed files with 7 additions and 3 deletions
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10
arch/arm/mach-ixp4xx/common.c
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@ -442,7 +442,8 @@ static int ixp4xx_set_next_event(unsigned long evt,
static void ixp4xx_set_mode(enum clock_event_mode mode, static void ixp4xx_set_mode(enum clock_event_mode mode,
struct clock_event_device *evt) 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) { switch (mode) {
case CLOCK_EVT_MODE_PERIODIC: case CLOCK_EVT_MODE_PERIODIC:
@ -455,12 +456,15 @@ static void ixp4xx_set_mode(enum clock_event_mode mode,
opts = IXP4XX_OST_ENABLE | IXP4XX_OST_ONE_SHOT; opts = IXP4XX_OST_ENABLE | IXP4XX_OST_ONE_SHOT;
break; break;
case CLOCK_EVT_MODE_SHUTDOWN: 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: case CLOCK_EVT_MODE_UNUSED:
default: default:
osrt = opts = 0; osrt = opts = 0;
break; break;
case CLOCK_EVT_MODE_RESUME:
break;
} }
*IXP4XX_OSRT1 = osrt | opts; *IXP4XX_OSRT1 = osrt | opts;