Commit 6ae98ed1 authored by Randy Vinson's avatar Randy Vinson Committed by Wim Van Sebroeck
Browse files

watchdog: Propagate Book E WDT period changes to all cores 



When the watchdog period is changed, it needs to be propagated to all cores
in addition to the core that performed the change.

Signed-off-by: default avatarRandy Vinson <rvinson@mvista.com>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 5d63c134

drivers/watchdog/booke_wdt.c

+17 −2
Original line number Diff line number Diff line
@@ -85,6 +85,22 @@ static unsigned int sec_to_period(unsigned int secs) 
	return 0;

}



static void __booke_wdt_set(void *data)

{

	u32 val;



	val = mfspr(SPRN_TCR);

	val &= ~WDTP_MASK;

	val |= WDTP(booke_wdt_period);



	mtspr(SPRN_TCR, val);

}



static void booke_wdt_set(void)

{

	on_each_cpu(__booke_wdt_set, NULL, 0);

}



static void __booke_wdt_ping(void *data)

{

	mtspr(SPRN_TSR, TSR_ENW|TSR_WIS);
@@ -181,8 +197,7 @@ static long booke_wdt_ioctl(struct file *file, 
#else

		booke_wdt_period = tmp;

#endif

		mtspr(SPRN_TCR, (mfspr(SPRN_TCR) & ~WDTP_MASK) |

						WDTP(booke_wdt_period));

		booke_wdt_set();

		return 0;

	case WDIOC_GETTIMEOUT:

		return put_user(booke_wdt_period, p);