6 files changed, 30 insertions, 26 deletions
diff --git a/linux/Documentation/video4linux/v4l2-framework.txt b/linux/Documentation/video4linux/v4l2-framework.txt
index 51a7b6db1..df0247ed1 100644
--- a/linux/Documentation/video4linux/v4l2-framework.txt
+++ b/linux/Documentation/video4linux/v4l2-framework.txt
@@ -91,7 +91,8 @@ NULL, then you *must* setup v4l2_dev->name before calling v4l2_device_register.
 
 The first 'dev' argument is normally the struct device pointer of a pci_dev,
 usb_device or platform_device. It is rare for dev to be NULL, but it happens
-with ISA devices, for example.
+with ISA devices or when one device creates multiple PCI devices, thus making
+it impossible to associate v4l2_dev with a particular parent.
 
 You unregister with:
 
@@ -414,6 +415,15 @@ You should also set these fields:
 - ioctl_ops: if you use the v4l2_ioctl_ops to simplify ioctl maintenance
   (highly recommended to use this and it might become compulsory in the
   future!), then set this to your v4l2_ioctl_ops struct.
+- parent: you only set this if v4l2_device was registered with NULL as
+  the parent device struct. This only happens in cases where one hardware
+  device has multiple PCI devices that all share the same v4l2_device core.
+
+  The cx88 driver is an example of this: one core v4l2_device struct, but
+  it is used by both an raw video PCI device (cx8800) and a MPEG PCI device
+  (cx8802). Since the v4l2_device cannot be associated with a particular
+  PCI device it is setup without a parent device. But when the struct
+  video_device is setup you do know which parent PCI device to use.
 
 If you use v4l2_ioctl_ops, then you should set either .unlocked_ioctl or
 .ioctl to video_ioctl2 in your v4l2_file_operations struct.
diff --git a/linux/drivers/media/video/cx23885/cx23885-core.c b/linux/drivers/media/video/cx23885/cx23885-core.c
index 6ae7ee247..d894d4900 100644
--- a/linux/drivers/media/video/cx23885/cx23885-core.c
+++ b/linux/drivers/media/video/cx23885/cx23885-core.c
@@ -1710,7 +1710,8 @@ static irqreturn_t cx23885_irq(int irq, void *dev_id)
 				PCI_MSK_GPIO1);
 	}
 
-	if ((pci_status & PCI_MSK_GPIO0) || (pci_status & PCI_MSK_GPIO1))
+	if (cx23885_boards[dev->board].cimax > 0 &&
+		((pci_status & PCI_MSK_GPIO0) || (pci_status & PCI_MSK_GPIO1)))
 		/* handled += cx23885_irq_gpio(dev, pci_status); */
 		handled += netup_ci_slot_status(dev, pci_status);
 
@@ -1786,7 +1787,12 @@ static int __devinit cx23885_initdev(struct pci_dev *pci_dev,
 	}
 
 	pci_set_drvdata(pci_dev, dev);
-	cx_set(PCI_INT_MSK, 0x01800000); /* for NetUP */
+
+	switch (dev->board) {
+	case CX23885_BOARD_NETUP_DUAL_DVBS2_CI:
+		cx_set(PCI_INT_MSK, 0x01800000); /* for NetUP */
+		break;
+	}
 
 	return 0;
 
diff --git a/linux/drivers/media/video/cx23885/cx23885-dvb.c b/linux/drivers/media/video/cx23885/cx23885-dvb.c
index 5529dcf6a..364543987 100644
--- a/linux/drivers/media/video/cx23885/cx23885-dvb.c
+++ b/linux/drivers/media/video/cx23885/cx23885-dvb.c
@@ -779,7 +779,11 @@ int cx23885_dvb_unregister(struct cx23885_tsport *port)
 	if (fe0->dvb.frontend)
 		videobuf_dvb_unregister_bus(&port->frontends);
 
-	netup_ci_exit(port);
+	switch (port->dev->board) {
+	case CX23885_BOARD_NETUP_DUAL_DVBS2_CI:
+		netup_ci_exit(port);
+		break;
+	}
 
 	return 0;
 }
diff --git a/linux/drivers/media/video/cx25840/cx25840-core.c b/linux/drivers/media/video/cx25840/cx25840-core.c
index b10f2bb8b..5387a846f 100644
--- a/linux/drivers/media/video/cx25840/cx25840-core.c
+++ b/linux/drivers/media/video/cx25840/cx25840-core.c
@@ -1594,9 +1594,9 @@ static int cx25840_probe(struct i2c_client *client,
 	}
 	else if ((device_id & 0xff00) == 0x8400) {
 		id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
-	} /* else if (device_id == 0x0000) {
+	} else if (device_id == 0x0000) {
 		id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
-	} */ else if (device_id == 0x1313) {
+	} else if (device_id == 0x1313) {
 		id = V4L2_IDENT_CX25836 + ((device_id >> 4) & 0xf) - 6;
 	} else if ((device_id & 0xfff0) == 0x5A30) {
 		id = V4L2_IDENT_CX25840 + ((device_id >> 4) & 0xf);
diff --git a/linux/drivers/media/video/gspca/mr97310a.c b/linux/drivers/media/video/gspca/mr97310a.c
index 5ec5ce6e3..2a901a4a6 100644
--- a/linux/drivers/media/video/gspca/mr97310a.c
+++ b/linux/drivers/media/video/gspca/mr97310a.c
@@ -29,9 +29,7 @@ MODULE_LICENSE("GPL");
 /* specific webcam descriptor */
 struct sd {
 	struct gspca_dev gspca_dev;  /* !! must be the first item */
-
 	u8 sof_read;
-	u8 header_read;
 };
 
 /* V4L2 controls supported by the driver */
@@ -285,7 +283,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			__u8 *data,                   /* isoc packet */
 			int len)                      /* iso packet length */
 {
-	struct sd *sd = (struct sd *) gspca_dev;
 	unsigned char *sof;
 
 	sof = pac_find_sof(gspca_dev, data, len);
@@ -300,25 +297,12 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 			n = 0;
 		frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
 					data, n);
-		sd->header_read = 0;
-		gspca_frame_add(gspca_dev, FIRST_PACKET, frame, NULL, 0);
+		/* Start next frame. */
+		gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+			pac_sof_marker, sizeof pac_sof_marker);
 		len -= sof - data;
 		data = sof;
 	}
-	if (sd->header_read < 7) {
-		int needed;
-
-		/* skip the rest of the header */
-		needed = 7 - sd->header_read;
-		if (len <= needed) {
-			sd->header_read += len;
-			return;
-		}
-		data += needed;
-		len -= needed;
-		sd->header_read = 7;
-	}
-
 	gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
 }
 
diff --git a/linux/drivers/media/video/v4l2-dev.c b/linux/drivers/media/video/v4l2-dev.c
index 110cde853..5e9b46c21 100644
--- a/linux/drivers/media/video/v4l2-dev.c
+++ b/linux/drivers/media/video/v4l2-dev.c
@@ -433,7 +433,7 @@ int video_register_device_index(struct video_device *vdev, int type, int nr,
 
 	vdev->vfl_type = type;
 	vdev->cdev = NULL;
-	if (vdev->v4l2_dev)
+	if (vdev->v4l2_dev && vdev->v4l2_dev->dev)
 		vdev->parent = vdev->v4l2_dev->dev;
 
 	/* Part 2: find a free minor, kernel number and device index. */