[PATCH 13/26] staging: comedi: ni_670x: use the comedi_device 'mmio' member

[H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>]

Use the new 'mmio' member in the comedi_device for the ioremap'ed
base address.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/staging/comedi/drivers/ni_670x.c | 28 +++++++++++-----------------
 1 file changed, 11 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
index a054bd5..f5caefa 100644
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -81,7 +81,6 @@ static const struct ni_670x_board ni_670x_boards[] = {
 };
 
 struct ni_670x_private {
-	void __iomem *mmio;
 	int boardtype;
 	int dio;
 	unsigned int ao_readback[32];
@@ -109,9 +108,9 @@ static int ni_670x_ao_winsn(struct comedi_device *dev,
 	for (i = 0; i < insn->n; i++) {
 		/* First write in channel register which channel to use */
 		writel(((chan & 15) << 1) | ((chan & 16) >> 4),
-		       devpriv->mmio + AO_CHAN_OFFSET);
+		       dev->mmio + AO_CHAN_OFFSET);
 		/* write channel value */
-		writel(data[i], devpriv->mmio + AO_VALUE_OFFSET);
+		writel(data[i], dev->mmio + AO_VALUE_OFFSET);
 		devpriv->ao_readback[chan] = data[i];
 	}
 
@@ -137,13 +136,10 @@ static int ni_670x_dio_insn_bits(struct comedi_device *dev,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
 {
-	struct ni_670x_private *devpriv = dev->private;
-	void __iomem *io_addr = devpriv->mmio + DIO_PORT0_DATA_OFFSET;
-
 	if (comedi_dio_update_state(s, data))
-		writel(s->state, io_addr);
+		writel(s->state, dev->mmio + DIO_PORT0_DATA_OFFSET);
 
-	data[1] = readl(io_addr);
+	data[1] = readl(dev->mmio + DIO_PORT0_DATA_OFFSET);
 
 	return insn->n;
 }
@@ -153,14 +149,13 @@ static int ni_670x_dio_insn_config(struct comedi_device *dev,
 				   struct comedi_insn *insn,
 				   unsigned int *data)
 {
-	struct ni_670x_private *devpriv = dev->private;
 	int ret;
 
 	ret = comedi_dio_insn_config(dev, s, insn, data, 0);
 	if (ret)
 		return ret;
 
-	writel(s->io_bits, devpriv->mmio + DIO_PORT0_DIR_OFFSET);
+	writel(s->io_bits, dev->mmio + DIO_PORT0_DIR_OFFSET);
 
 	return insn->n;
 }
@@ -217,8 +212,8 @@ static int ni_670x_auto_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	devpriv->mmio = pci_ioremap_bar(pcidev, 1);
-	if (!devpriv->mmio)
+	dev->mmio = pci_ioremap_bar(pcidev, 1);
+	if (!dev->mmio)
 		return -ENOMEM;
 
 	ret = comedi_alloc_subdevices(dev, 2);
@@ -260,16 +255,15 @@ static int ni_670x_auto_attach(struct comedi_device *dev,
 	s->insn_config = ni_670x_dio_insn_config;
 
 	/* Config of misc registers */
-	writel(0x10, devpriv->mmio + MISC_CONTROL_OFFSET);
+	writel(0x10, dev->mmio + MISC_CONTROL_OFFSET);
 	/* Config of ao registers */
-	writel(0x00, devpriv->mmio + AO_CONTROL_OFFSET);
+	writel(0x00, dev->mmio + AO_CONTROL_OFFSET);
 
 	return 0;
 }
 
 static void ni_670x_detach(struct comedi_device *dev)
 {
-	struct ni_670x_private *devpriv = dev->private;
 	struct comedi_subdevice *s;
 
 	if (dev->n_subdevices) {
@@ -277,8 +271,8 @@ static void ni_670x_detach(struct comedi_device *dev)
 		if (s)
 			kfree(s->range_table_list);
 	}
-	if (devpriv && devpriv->mmio)
-		iounmap(devpriv->mmio);
+	if (dev->mmio)
+		iounmap(dev->mmio);
 	comedi_pci_disable(dev);
 }
 
-- 
2.0.3

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