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staging: comedi: addi_apci_1516: simplify the PCI bar reading

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The boards supported by this driver have an eeprom attached to a S5920
PCI controller chip. Knowing this information allows simplifying the
code that reads the PCI bars to get the iobase address.

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>
This commit is contained in:
H Hartley Sweeten 2012-11-13 13:41:41 -07:00 committed by Greg Kroah-Hartman
parent 56587a06ad
commit a3003b4133
1 changed files with 4 additions and 18 deletions
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22
drivers/staging/comedi/drivers/addi_apci_1516.c
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@ -99,24 +99,10 @@ static int __devinit apci1516_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 */