drm/omap: use dispc_channel_connected in output drivers

Use 'out->dispc_channel_connected' to check if the device is connected
to an overlay manager or not, instead of using 'out->manager'.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/gpu/drm/omapdrm/dss/dpi.c b/drivers/gpu/drm/omapdrm/dss/dpi.c
index 557cf3b..c4ebc75 100644
--- a/drivers/gpu/drm/omapdrm/dss/dpi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dpi.c
@@ -395,7 +395,7 @@
 		goto err_no_reg;
 	}
 
-	if (out->manager == NULL) {
+	if (!out->dispc_channel_connected) {
 		DSSERR("failed to enable display: no output/manager\n");
 		r = -ENODEV;
 		goto err_no_out_mgr;
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 43be4b2..5afbaac 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -3833,7 +3833,7 @@
 	u16 word_count;
 	int r;
 
-	if (out->manager == NULL) {
+	if (!out->dispc_channel_connected) {
 		DSSERR("failed to enable display: no output/manager\n");
 		return -ENODEV;
 	}
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
index ddd6a33..5d8a5ed 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c
@@ -348,7 +348,7 @@
 
 	mutex_lock(&hdmi.lock);
 
-	if (out->manager == NULL) {
+	if (!out->dispc_channel_connected) {
 		DSSERR("failed to enable display: no output/manager\n");
 		r = -ENODEV;
 		goto err0;
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
index b2dd4c9..24a1402 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c
@@ -374,7 +374,7 @@
 
 	mutex_lock(&hdmi.lock);
 
-	if (out->manager == NULL) {
+	if (!out->dispc_channel_connected) {
 		DSSERR("failed to enable display: no output/manager\n");
 		r = -ENODEV;
 		goto err0;
diff --git a/drivers/gpu/drm/omapdrm/dss/rfbi.c b/drivers/gpu/drm/omapdrm/dss/rfbi.c
index aea6a1d..3796576 100644
--- a/drivers/gpu/drm/omapdrm/dss/rfbi.c
+++ b/drivers/gpu/drm/omapdrm/dss/rfbi.c
@@ -880,7 +880,7 @@
 	struct omap_dss_device *out = &rfbi.output;
 	int r;
 
-	if (out->manager == NULL) {
+	if (!out->dispc_channel_connected) {
 		DSSERR("failed to enable display: no output/manager\n");
 		return -ENODEV;
 	}
diff --git a/drivers/gpu/drm/omapdrm/dss/sdi.c b/drivers/gpu/drm/omapdrm/dss/sdi.c
index d747cc6..33d36ab 100644
--- a/drivers/gpu/drm/omapdrm/dss/sdi.c
+++ b/drivers/gpu/drm/omapdrm/dss/sdi.c
@@ -136,7 +136,7 @@
 	unsigned long pck;
 	int r;
 
-	if (out->manager == NULL) {
+	if (!out->dispc_channel_connected) {
 		DSSERR("failed to enable display: no output/manager\n");
 		return -ENODEV;
 	}
diff --git a/drivers/gpu/drm/omapdrm/dss/venc.c b/drivers/gpu/drm/omapdrm/dss/venc.c
index 08f9def..037c5b4 100644
--- a/drivers/gpu/drm/omapdrm/dss/venc.c
+++ b/drivers/gpu/drm/omapdrm/dss/venc.c
@@ -515,7 +515,7 @@
 
 	mutex_lock(&venc.venc_lock);
 
-	if (out->manager == NULL) {
+	if (!out->dispc_channel_connected) {
 		DSSERR("Failed to enable display: no output/manager\n");
 		r = -ENODEV;
 		goto err0;