msm_fb: hdmi: CEC Message queue flush
CEC message queue should be flushed when CEC
function is enabled. If there are residue CEC
message, they might cause collision at message
queue.
CRs-fixed: 338811
Change-Id: I6268528417d660fab48818ae67e94e169abbb217
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
diff --git a/drivers/video/msm/external_common.c b/drivers/video/msm/external_common.c
index d6f59aa..90702f3 100644
--- a/drivers/video/msm/external_common.c
+++ b/drivers/video/msm/external_common.c
@@ -400,6 +400,14 @@
mutex_lock(&hdmi_msm_state_mutex);
hdmi_msm_state->cec_enabled = true;
hdmi_msm_state->cec_logical_addr = 4;
+
+ /* flush CEC queue */
+ hdmi_msm_state->cec_queue_wr = hdmi_msm_state->cec_queue_start;
+ hdmi_msm_state->cec_queue_rd = hdmi_msm_state->cec_queue_start;
+ hdmi_msm_state->cec_queue_full = false;
+ memset(hdmi_msm_state->cec_queue_rd, 0,
+ sizeof(struct hdmi_msm_cec_msg)*CEC_QUEUE_SIZE);
+
mutex_unlock(&hdmi_msm_state_mutex);
hdmi_msm_cec_init();
hdmi_msm_cec_write_logical_addr(