tifm: clear interrupt mask bits before setting them on adapter init
Alex Dubov [Mon, 10 Mar 2008 18:43:41 +0000 (11:43 -0700)]
This should improve reliability of detection of cards already in socket on
driver load.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/misc/tifm_7xx1.c

index 63a089b..67503ea 100644 (file)
@@ -368,6 +368,8 @@ static int tifm_7xx1_probe(struct pci_dev *dev,
                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;