tifm: clear interrupt mask bits before setting them on adapter init

This should improve reliability of detection of cards already in socket on driver load. Signed-off-by: Alex Dubov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
hanmiltonxing · Mar 11, 2008 · e4c70e8 · e4c70e8
1 parent eebbe9c
commit e4c70e8
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
@@ -367,6 +367,8 @@ static int tifm_7xx1_probe(struct pci_dev *dev,
 	if (rc)
 		goto err_out_irq;
 
+	writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1),
+	       fm->addr + FM_CLEAR_INTERRUPT_ENABLE);
 	writel(TIFM_IRQ_ENABLE | TIFM_IRQ_SOCKMASK((1 << fm->num_sockets) - 1),
 	       fm->addr + FM_SET_INTERRUPT_ENABLE);
 	return 0;