Merge "msm: mdss: hdmi: wait for power off"
diff --git a/drivers/video/msm/mdss/mdss_hdmi_tx.c b/drivers/video/msm/mdss/mdss_hdmi_tx.c
index cdf9d73..2b409f5 100644
--- a/drivers/video/msm/mdss/mdss_hdmi_tx.c
+++ b/drivers/video/msm/mdss/mdss_hdmi_tx.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
+/* Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@@ -1127,6 +1127,17 @@
DEV_DBG("%s: Got HPD interrupt\n", __func__);
if (hdmi_ctrl->hpd_state) {
+ /*
+ * If a down stream device or bridge chip is attached to hdmi
+ * Tx core output, it is likely that it might be powering the
+ * hpd module ON/OFF on cable connect/disconnect as it would
+ * have its own mechanism of detecting cable. Flush power off
+ * work is needed in case there is any race condidtion between
+ * power off and on during fast cable plug in/out.
+ */
+ if (hdmi_ctrl->ds_registered)
+ flush_work(&hdmi_ctrl->power_off_work);
+
if (hdmi_tx_enable_power(hdmi_ctrl, HDMI_TX_DDC_PM, true)) {
DEV_ERR("%s: Failed to enable ddc power\n", __func__);
return;
@@ -2351,6 +2362,8 @@
ops->set_mhl_max_pclk = hdmi_tx_set_mhl_max_pclk;
ops->set_upstream_hpd = hdmi_tx_set_mhl_hpd;
+ hdmi_ctrl->ds_registered = true;
+
return 0;
}
diff --git a/drivers/video/msm/mdss/mdss_hdmi_tx.h b/drivers/video/msm/mdss/mdss_hdmi_tx.h
index 8233ba8..54d80dc 100644
--- a/drivers/video/msm/mdss/mdss_hdmi_tx.h
+++ b/drivers/video/msm/mdss/mdss_hdmi_tx.h
@@ -83,6 +83,7 @@
struct work_struct cable_notify_work;
bool hdcp_feature_on;
+ bool ds_registered;
u32 present_hdcp;
u8 spd_vendor_name[9];