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Subject[PATCH 11/20] staging: comedi: adv_pci1723: use attach_pci callback
Date
Convert this PCI driver to use the comedi PCI auto config attach
mechanism by adding an 'attach_pci' callback function. Since the
driver does not require any external configuration options, and
the legacy 'attach' callback is now optional, remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/staging/comedi/drivers/adv_pci1723.c | 42 ++++------------------------
1 file changed, 6 insertions(+), 36 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index 21dfde2..63f0985 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -238,50 +238,21 @@ static int pci1723_dio_insn_bits(struct comedi_device *dev,
return insn->n;
}

-static struct pci_dev *pci1723_find_pci_dev(struct comedi_device *dev,
- struct comedi_devconfig *it)
-{
- struct pci_dev *pcidev = NULL;
- int bus = it->options[0];
- int slot = it->options[1];
-
- for_each_pci_dev(pcidev) {
- if (bus || slot) {
- if (bus != pcidev->bus->number ||
- slot != PCI_SLOT(pcidev->devfn))
- continue;
- }
- if (pcidev->vendor != PCI_VENDOR_ID_ADVANTECH)
- continue;
- if (pcidev->device != 0x1723)
- continue;
- return pcidev;
- }
- dev_err(dev->class_dev,
- "No supported board found! (req. bus %d, slot %d)\n",
- bus, slot);
- return NULL;
-}
-
-static int pci1723_attach(struct comedi_device *dev,
- struct comedi_devconfig *it)
+static int pci1723_attach_pci(struct comedi_device *dev,
+ struct pci_dev *pcidev)
{
struct pci1723_private *devpriv;
- struct pci_dev *pcidev;
struct comedi_subdevice *s;
int ret;

+ comedi_set_hw_dev(dev, &pcidev->dev);
+ dev->board_name = dev->driver->driver_name;
+
ret = alloc_private(dev, sizeof(*devpriv));
if (ret < 0)
return ret;
devpriv = dev->private;

- pcidev = pci1723_find_pci_dev(dev, it);
- if (!pcidev)
- return -EIO;
- comedi_set_hw_dev(dev, &pcidev->dev);
- dev->board_name = dev->driver->driver_name;
-
ret = comedi_pci_enable(pcidev, dev->board_name);
if (ret)
return ret;
@@ -353,14 +324,13 @@ static void pci1723_detach(struct comedi_device *dev)
if (pcidev) {
if (dev->iobase)
comedi_pci_disable(pcidev);
- pci_dev_put(pcidev);
}
}

static struct comedi_driver adv_pci1723_driver = {
.driver_name = "adv_pci1723",
.module = THIS_MODULE,
- .attach = pci1723_attach,
+ .attach_pci = pci1723_attach_pci,
.detach = pci1723_detach,
};

--
1.7.11


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