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authorTakashi Iwai <tiwai@suse.de>2010-09-03 22:38:52 +0200
committerTakashi Iwai <tiwai@suse.de>2010-09-03 22:38:52 +0200
commit68885a3ff38ed51fa02f241feb405c9922a90ee0 (patch)
tree2fc626df39d5e0e1f6b065238141f7d49187c737 /drivers/firewire/ohci.c
parent7b28079b3284ccb15ad4f003fb7073890600d0c1 (diff)
parenta2acad8298a42b7be684a32fafaf83332bba9c2b (diff)
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Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'drivers/firewire/ohci.c')
-rw-r--r--drivers/firewire/ohci.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 7f03540..be29b0b 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -694,7 +694,15 @@ static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer)
log_ar_at_event('R', p.speed, p.header, evt);
/*
- * The OHCI bus reset handler synthesizes a phy packet with
+ * Several controllers, notably from NEC and VIA, forget to
+ * write ack_complete status at PHY packet reception.
+ */
+ if (evt == OHCI1394_evt_no_status &&
+ (p.header[0] & 0xff) == (OHCI1394_phy_tcode << 4))
+ p.ack = ACK_COMPLETE;
+
+ /*
+ * The OHCI bus reset handler synthesizes a PHY packet with
* the new generation number when a bus reset happens (see
* section 8.4.2.3). This helps us determine when a request
* was received and make sure we send the response in the same