1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 8ebccda94df9..525848f71c34 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -490,6 +490,13 @@ static int ohci_update_phy_reg(struct fw_card *card, int addr,
         if (err < 0)
                 return err;
 
+        /*
+         * The interrupt status bits are cleared by writing a one bit.
+         * Avoid clearing them unless explicitly requested in set_bits.
+         */
+        if (addr == 5)
+                clear_bits |= PHY_INT_STATUS_BITS;
+
         old = (old & ~clear_bits) | set_bits;
         reg_write(ohci, OHCI1394_PhyControl,
                   OHCI1394_PhyControl_Write(addr, old));