msm: bam_dmux: enable disconnect ack feature support by default
The disconnect ack feature is normally turned on by a handshaking
mechanism between bam_dmux and A2, but on some 9615 variants that
mechanism will not exist. A2 will still expect the disconnect ack to
be active and might crash if it encounters that it is not active.
Enable the disconnect ack feature by default to prevent this.
CRs-Fixed: 372958
Change-Id: I2222b4651e14c2154f51a8c38852a855cdd93c4e
Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org>
diff --git a/arch/arm/mach-msm/bam_dmux.c b/arch/arm/mach-msm/bam_dmux.c
index d53e471..c069761 100644
--- a/arch/arm/mach-msm/bam_dmux.c
+++ b/arch/arm/mach-msm/bam_dmux.c
@@ -238,7 +238,7 @@
static DEFINE_SPINLOCK(wakelock_reference_lock);
static int wakelock_reference_count;
static int a2_pc_disabled_wakelock_skipped;
-static int disconnect_ack;
+static int disconnect_ack = 1;
static LIST_HEAD(bam_other_notify_funcs);
static DEFINE_MUTEX(smsm_cb_lock);
static DEFINE_MUTEX(delayed_ul_vote_lock);
@@ -561,9 +561,9 @@
bam_dmux_log("%s: opening cid %d PC enabled\n", __func__,
rx_hdr->ch_id);
handle_bam_mux_cmd_open(rx_hdr);
- if (rx_hdr->reserved & ENABLE_DISCONNECT_ACK) {
- bam_dmux_log("%s: activating disconnect ack\n");
- disconnect_ack = 1;
+ if (!(rx_hdr->reserved & ENABLE_DISCONNECT_ACK)) {
+ bam_dmux_log("%s: deactivating disconnect ack\n");
+ disconnect_ack = 0;
}
dev_kfree_skb_any(rx_skb);
break;