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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-05-02 16:12:00 +1000
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-05-02 08:15:22 -0700
commite521dca64e0f82d844928c5ee88d82fdced50cbe (patch)
treec894a71c7d1a22e6c814f202532ec55616665adb /drivers/macintosh
parent6995f17a5ab3c3fd4df2e5b107d08cff1db3fa41 (diff)
[PATCH] ppc32: Fix might_sleep() warning with clock spreading
The clock spreading disable/enable code was called to late/early during the suspend/resume code on some laptops and would trigger a might_sleep() warning due to the down() call in the low level i2c code. This fixes it by calling those functions earlier/later when interrupts are still enabled. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/macintosh')
-rw-r--r--drivers/macintosh/via-pmu.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index fdea1a3a631..e654aa5eecd 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2351,6 +2351,10 @@ pmac_suspend_devices(void)
return -EBUSY;
}
+ /* Disable clock spreading on some machines */
+ pmac_tweak_clock_spreading(0);
+
+ /* Stop preemption */
preempt_disable();
/* Make sure the decrementer won't interrupt us */
@@ -2417,11 +2421,12 @@ pmac_wakeup_devices(void)
/* Re-enable local CPU interrupts */
local_irq_enable();
-
mdelay(100);
-
preempt_enable();
+ /* Re-enable clock spreading on some machines */
+ pmac_tweak_clock_spreading(1);
+
/* Resume devices */
device_resume();