[media] au0828: add pr_info to track au0828 suspend/resume code

Suspend/resume conditions can be very tricky. Add some info
printk's to help tracking what's happening there.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

4 files changed, 17 insertions, 0 deletions

diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index 452d14249348..bc064803b6c7 100644
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -288,6 +288,8 @@ static int au0828_suspend(struct usb_interface *interface,
         if (!dev)
                 return 0;
 
+        pr_info("Suspend\n");
+
         au0828_rc_suspend(dev);
         au0828_v4l2_suspend(dev);
         au0828_dvb_suspend(dev);
@@ -303,6 +305,8 @@ static int au0828_resume(struct usb_interface *interface)
         if (!dev)
                 return 0;
 
+        pr_info("Resume\n");
+
         /* Power Up the bridge */
         au0828_write(dev, REG_600, 1 << 4);
 
diff --git a/drivers/media/usb/au0828/au0828-dvb.c b/drivers/media/usb/au0828/au0828-dvb.c
index 99cf83bca033..ee45990c0be1 100644
--- a/drivers/media/usb/au0828/au0828-dvb.c
+++ b/drivers/media/usb/au0828/au0828-dvb.c
@@ -619,6 +619,8 @@ void au0828_dvb_suspend(struct au0828_dev *dev)
         struct au0828_dvb *dvb = &dev->dvb;
 
         if (dvb && dev->urb_streaming) {
+                pr_info("stopping DVB\n");
+
                 cancel_work_sync(&dev->restart_streaming);
 
                 /* Stop transport */
@@ -634,6 +636,8 @@ void au0828_dvb_resume(struct au0828_dev *dev)
         struct au0828_dvb *dvb = &dev->dvb;
 
         if (dvb && dev->urb_streaming) {
+                pr_info("resuming DVB\n");
+
                 au0828_set_frontend(dvb->frontend);
 
                 /* Start transport */
diff --git a/drivers/media/usb/au0828/au0828-input.c b/drivers/media/usb/au0828/au0828-input.c
index 6db1ce8e09e1..63995f97dc65 100644
--- a/drivers/media/usb/au0828/au0828-input.c
+++ b/drivers/media/usb/au0828/au0828-input.c
@@ -378,6 +378,8 @@ int au0828_rc_suspend(struct au0828_dev *dev)
         if (!ir)
                 return 0;
 
+        pr_info("Stopping RC\n");
+
         cancel_delayed_work_sync(&ir->work);
 
         /* Disable IR */
@@ -393,6 +395,8 @@ int au0828_rc_resume(struct au0828_dev *dev)
         if (!ir)
                 return 0;
 
+        pr_info("Restarting RC\n");
+
         /* Enable IR */
         au8522_rc_set(ir, 0xe0, 1 << 4);
 
diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
index 193b2e364266..5f337b118bff 100644
--- a/drivers/media/usb/au0828/au0828-video.c
+++ b/drivers/media/usb/au0828/au0828-video.c
@@ -1876,7 +1876,10 @@ void au0828_v4l2_suspend(struct au0828_dev *dev)
         struct urb *urb;
         int i;
 
+        pr_info("stopping V4L2\n");
+
         if (dev->stream_state == STREAM_ON) {
+                pr_info("stopping V4L2 active URBs\n");
                 au0828_analog_stream_disable(dev);
                 /* stop urbs */
                 for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
@@ -1900,6 +1903,8 @@ void au0828_v4l2_resume(struct au0828_dev *dev)
 {
         int i, rc;
 
+        pr_info("restarting V4L2\n");
+
         if (dev->stream_state == STREAM_ON) {
                 au0828_stream_interrupt(dev);
                 au0828_init_tuner(dev);