[PATCH] v4l: 797: more intellect on clearing in bits on irq lock
- More intellect on clearing in bits on irq lock.
Signed-off-by: Nickolay V. Shmyrev <<nshmyrev@yandex.ru>>
Signed-off-by: Nickolay V. Shmyrev <nshmyrev@yandex.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/media/video/bttv-driver.c b/drivers/media/video/bttv-driver.c
index 504d717..058b923 100644
--- a/drivers/media/video/bttv-driver.c
+++ b/drivers/media/video/bttv-driver.c
@@ -3736,10 +3736,22 @@
count++;
if (count > 4) {
- btwrite(0, BT848_INT_MASK);
- printk(KERN_ERR
- "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
+
+ if (count > 8 || !(astat & BT848_INT_GPINT)) {
+ btwrite(0, BT848_INT_MASK);
+
+ printk(KERN_ERR
+ "bttv%d: IRQ lockup, cleared int mask [", btv->c.nr);
+ } else {
+ printk(KERN_ERR
+ "bttv%d: IRQ lockup, clearing GPINT from int mask [", btv->c.nr);
+
+ btwrite(btread(BT848_INT_MASK) & (-1 ^ BT848_INT_GPINT),
+ BT848_INT_MASK);
+ };
+
bttv_print_irqbits(stat,astat);
+
printk("]\n");
}
}