1 files changed, 9 insertions, 18 deletions

diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c
index 46a385c29ba8..f21e6567ac2f 100644
--- a/drivers/staging/comedi/drivers/8255_pci.c
+++ b/drivers/staging/comedi/drivers/8255_pci.c
@@ -56,7 +56,6 @@ Configuration Options: not applicable, uses PCI auto config
 #include "../comedidev.h"
 
 #include "8255.h"
-#include "mite.h"
 
 enum pci_8255_boardid {
 	BOARD_ADLINK_PCI7224,
@@ -168,9 +167,9 @@ static const struct pci_8255_boardinfo pci_8255_boards[] = {
 	},
 };
 
-struct pci_8255_private {
-	void __iomem *mmio_base;
-};
+/* ripped from mite.h and mite_setup2() to avoid mite dependancy */
+#define MITE_IODWBSR	0xc0	 /* IO Device Window Base Size Register */
+#define WENAB		(1 << 7) /* window enable */
 
 static int pci_8255_mite_init(struct pci_dev *pcidev)
 {
@@ -198,9 +197,8 @@ static int pci_8255_mmio(int dir, int port, int data, unsigned long iobase)
 	if (dir) {
 		writeb(data, mmio_base + port);
 		return 0;
-	} else {
-		return readb(mmio_base  + port);
 	}
+	return readb(mmio_base  + port);
 }
 
 static int pci_8255_auto_attach(struct comedi_device *dev,
@@ -208,7 +206,6 @@ static int pci_8255_auto_attach(struct comedi_device *dev,
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	const struct pci_8255_boardinfo *board = NULL;
-	struct pci_8255_private *devpriv;
 	struct comedi_subdevice *s;
 	bool is_mmio;
 	int ret;
@@ -221,10 +218,6 @@ static int pci_8255_auto_attach(struct comedi_device *dev,
 	dev->board_ptr = board;
 	dev->board_name = board->name;
 
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
 	ret = comedi_pci_enable(dev);
 	if (ret)
 		return ret;
@@ -238,8 +231,8 @@ static int pci_8255_auto_attach(struct comedi_device *dev,
 	is_mmio = (pci_resource_flags(pcidev, board->dio_badr) &
 		   IORESOURCE_MEM) != 0;
 	if (is_mmio) {
-		devpriv->mmio_base = pci_ioremap_bar(pcidev, board->dio_badr);
-		if (!devpriv->mmio_base)
+		dev->mmio = pci_ioremap_bar(pcidev, board->dio_badr);
+		if (!dev->mmio)
 			return -ENOMEM;
 	} else {
 		dev->iobase = pci_resource_start(pcidev, board->dio_badr);
@@ -259,7 +252,7 @@ static int pci_8255_auto_attach(struct comedi_device *dev,
 
 		s = &dev->subdevices[i];
 		if (is_mmio) {
-			iobase = (unsigned long)(devpriv->mmio_base + (i * 4));
+			iobase = (unsigned long)(dev->mmio + (i * 4));
 			ret = subdev_8255_init(dev, s, pci_8255_mmio, iobase);
 		} else {
 			iobase = dev->iobase + (i * 4);
@@ -274,10 +267,8 @@ static int pci_8255_auto_attach(struct comedi_device *dev,
 
 static void pci_8255_detach(struct comedi_device *dev)
 {
-	struct pci_8255_private *devpriv = dev->private;
-
-	if (devpriv && devpriv->mmio_base)
-		iounmap(devpriv->mmio_base);
+	if (dev->mmio)
+		iounmap(dev->mmio);
 	comedi_pci_disable(dev);
 }