X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fsound%2Ffirewire%2Ffireworks%2Ffireworks_stream.c;h=7e353f1f7bff359ea8845630aeff2521759e508f;hb=fdb8b20906f3546ba6c2f9f0686d8a5189516ba3;hp=c55db1bddc80a0ceab4997279643f73840943cef;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/kernel/sound/firewire/fireworks/fireworks_stream.c b/kernel/sound/firewire/fireworks/fireworks_stream.c
index c55db1bdd..7e353f1f7 100644
--- a/kernel/sound/firewire/fireworks/fireworks_stream.c
+++ b/kernel/sound/firewire/fireworks/fireworks_stream.c
@@ -172,6 +172,15 @@ int snd_efw_stream_init_duplex(struct snd_efw *efw)
 	efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT;
 	/* Fireworks reset dbc at bus reset. */
 	efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK;
+	/*
+	 * But Recent firmwares starts packets with non-zero dbc.
+	 * Driver version 5.7.6 installs firmware version 5.7.3.
+	 */
+	if (efw->is_fireworks3 &&
+	    (efw->firmware_version == 0x5070000 ||
+	     efw->firmware_version == 0x5070300 ||
+	     efw->firmware_version == 0x5080000))
+		efw->tx_stream.tx_first_dbc = 0x02;
 	/* AudioFire9 always reports wrong dbs. */
 	if (efw->is_af9)
 		efw->tx_stream.flags |= CIP_WRONG_DBS;