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[PATCH] m68k/Atari: Interrupt updates

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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>
This commit is contained in:
Geert Uytterhoeven
2006-10-09 22:23:31 +02:00
committed by Linus Torvalds
parent da96d0b58a
commit 69961c3752
3 changed files with 15 additions and 4 deletions
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9
arch/m68k/atari/time.c
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@@ -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 @@ int atari_tt_hwclk( int op, struct rtc_time *t )
* 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 );