[PATCH] m68k/Atari: Interrupt updates
Misc Atari fixes:
- initialize correct number of atari irqs
- silence vbl interrupt until it's used by atafb
- use mdelay() to read clock if necessary
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/m68k/atari/time.c b/arch/m68k/atari/time.c
index c44df4a..e0d3c8b 100644
--- a/arch/m68k/atari/time.c
+++ b/arch/m68k/atari/time.c
@@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/rtc.h>
#include <linux/bcd.h>
+#include <linux/delay.h>
#include <asm/atariints.h>
@@ -212,8 +213,12 @@
* additionally the RTC_SET bit is set to prevent an update cycle.
*/
- while( RTC_READ(RTC_FREQ_SELECT) & RTC_UIP )
- schedule_timeout_interruptible(HWCLK_POLL_INTERVAL);
+ while( RTC_READ(RTC_FREQ_SELECT) & RTC_UIP ) {
+ if (in_atomic() || irqs_disabled())
+ mdelay(1);
+ else
+ schedule_timeout_interruptible(HWCLK_POLL_INTERVAL);
+ }
local_irq_save(flags);
RTC_WRITE( RTC_CONTROL, ctrl | RTC_SET );