From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 23 Jan 2013 19:39:27 +0000 (-0700)
Subject: staging: comedi: addi_apci_3501: simplify the PCI bar reading
X-Git-Tag: firefly_0821_release~3680^2~1080^2~302
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1bdc840224f71768c6bbe41b211f07c0778330c8;p=firefly-linux-kernel-4.4.55.git

staging: comedi: addi_apci_3501: simplify the PCI bar reading

The board supported by this driver has an eeprom connected to an
AMCC S5933 PCI controller chip. Knowing this, we can simplify the
code that reads the PCI bars to get the iobase addresses used in
the driver.

Also, since the dw_AiBase is not ioremap'ed, we can remove the
iounmap in the detach.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/comedi/drivers/addi_apci_3501.c b/drivers/staging/comedi/drivers/addi_apci_3501.c
index 0c57d70f7fe1..3f8f26ac4df7 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3501.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3501.c
@@ -189,24 +189,10 @@ static int apci3501_auto_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	if (!this_board->pc_EepromChip ||
-	    strcmp(this_board->pc_EepromChip, ADDIDATA_9054)) {
-		/* board does not have an eeprom or is not ADDIDATA_9054 */
-		if (this_board->i_IorangeBase1)
-			dev->iobase = pci_resource_start(pcidev, 1);
-		else
-			dev->iobase = pci_resource_start(pcidev, 0);
-
-		devpriv->iobase = dev->iobase;
-		devpriv->i_IobaseAmcc = pci_resource_start(pcidev, 0);
-		devpriv->i_IobaseAddon = pci_resource_start(pcidev, 2);
-	} else {
-		/* board has an ADDIDATA_9054 eeprom */
-		dev->iobase = pci_resource_start(pcidev, 2);
-		devpriv->iobase = pci_resource_start(pcidev, 2);
-		devpriv->dw_AiBase = ioremap(pci_resource_start(pcidev, 3),
-					     this_board->i_IorangeBase3);
-	}
+	dev->iobase = pci_resource_start(pcidev, 1);
+	devpriv->iobase = dev->iobase;
+	devpriv->i_IobaseAmcc = pci_resource_start(pcidev, 0);
+	devpriv->i_IobaseAddon = pci_resource_start(pcidev, 2);
 	devpriv->i_IobaseReserved = pci_resource_start(pcidev, 3);
 
 	/* Initialize parameters that can be overridden in EEPROM */
@@ -309,8 +295,6 @@ static void apci3501_detach(struct comedi_device *dev)
 			apci3501_reset(dev);
 		if (dev->irq)
 			free_irq(dev->irq, dev);
-		if (devpriv->dw_AiBase)
-			iounmap(devpriv->dw_AiBase);
 	}
 	if (pcidev) {
 		if (dev->iobase)