i8253: Convert i8253_lock to raw_spinlock
i8253_lock needs to be a real spinlock in preempt-rt, i.e. it can
not be converted to a sleeping lock.
Convert it to raw_spinlock and fix up all users.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Cc: Jens Axboe <jens.axboe@oracle.com>
LKML-Reference: <20100217163751.030764372@linutronix.de>
diff --git a/sound/drivers/pcsp/pcsp_lib.c b/sound/drivers/pcsp/pcsp_lib.c
index e1145ac..f6a2e72 100644
--- a/sound/drivers/pcsp/pcsp_lib.c
+++ b/sound/drivers/pcsp/pcsp_lib.c
@@ -65,7 +65,7 @@
timer_cnt = val * CUR_DIV() / 256;
if (timer_cnt && chip->enable) {
- spin_lock_irqsave(&i8253_lock, flags);
+ raw_spin_lock_irqsave(&i8253_lock, flags);
if (!nforce_wa) {
outb_p(chip->val61, 0x61);
outb_p(timer_cnt, 0x42);
@@ -74,7 +74,7 @@
outb(chip->val61 ^ 2, 0x61);
chip->thalf = 1;
}
- spin_unlock_irqrestore(&i8253_lock, flags);
+ raw_spin_unlock_irqrestore(&i8253_lock, flags);
}
chip->ns_rem = PCSP_PERIOD_NS();
@@ -158,10 +158,10 @@
return -EIO;
}
- spin_lock(&i8253_lock);
+ raw_spin_lock(&i8253_lock);
chip->val61 = inb(0x61) | 0x03;
outb_p(0x92, 0x43); /* binary, mode 1, LSB only, ch 2 */
- spin_unlock(&i8253_lock);
+ raw_spin_unlock(&i8253_lock);
atomic_set(&chip->timer_active, 1);
chip->thalf = 0;
@@ -178,11 +178,11 @@
return;
atomic_set(&chip->timer_active, 0);
- spin_lock(&i8253_lock);
+ raw_spin_lock(&i8253_lock);
/* restore the timer */
outb_p(0xb6, 0x43); /* binary, mode 3, LSB/MSB, ch 2 */
outb(chip->val61 & 0xFC, 0x61);
- spin_unlock(&i8253_lock);
+ raw_spin_unlock(&i8253_lock);
}
/*