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uio_mf624: Refactor memory info initialization 

No functional changes. Move initialization of struct uio_mem to a
function. This will allow the next commit to change the initialization
code at a single place rather that at three different places.

Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michal Sojka 2017-03-16 14:50:09 +01:00 committed by Greg Kroah-Hartman
parent 171058fb08
commit a15d2ddba9
1 changed files with 18 additions and 26 deletions
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44
drivers/uio/uio_mf624.c
View File

@ -127,6 +127,20 @@ static int mf624_irqcontrol(struct uio_info *info, s32 irq_on)
return 0; return 0;
} }
static int mf624_setup_mem(struct pci_dev *dev, int bar, struct uio_mem *mem, const char *name)
{
mem->name = name;
mem->addr = pci_resource_start(dev, bar);
if (!mem->addr)
return -ENODEV;
mem->size = pci_resource_len(dev, bar);
mem->memtype = UIO_MEM_PHYS;
mem->internal_addr = pci_ioremap_bar(dev, bar);
if (!mem->internal_addr)
return -ENODEV;
return 0;
}
static int mf624_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) static int mf624_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
{ {
struct uio_info *info; struct uio_info *info;
@ -147,37 +161,15 @@ static int mf624_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
/* Note: Datasheet says device uses BAR0, BAR1, BAR2 -- do not trust it */ /* Note: Datasheet says device uses BAR0, BAR1, BAR2 -- do not trust it */
/* BAR0 */ /* BAR0 */
info->mem[0].name = "PCI chipset, interrupts, status " if (mf624_setup_mem(dev, 0, &info->mem[0], "PCI chipset, interrupts, status "
"bits, special functions"; "bits, special functions"))
info->mem[0].addr = pci_resource_start(dev, 0);
if (!info->mem[0].addr)
goto out_release; goto out_release;
info->mem[0].size = pci_resource_len(dev, 0);
info->mem[0].memtype = UIO_MEM_PHYS;
info->mem[0].internal_addr = pci_ioremap_bar(dev, 0);
if (!info->mem[0].internal_addr)
goto out_release;
/* BAR2 */ /* BAR2 */
info->mem[1].name = "ADC, DAC, DIO"; if (mf624_setup_mem(dev, 2, &info->mem[1], "ADC, DAC, DIO"))
info->mem[1].addr = pci_resource_start(dev, 2);
if (!info->mem[1].addr)
goto out_unmap0;
info->mem[1].size = pci_resource_len(dev, 2);
info->mem[1].memtype = UIO_MEM_PHYS;
info->mem[1].internal_addr = pci_ioremap_bar(dev, 2);
if (!info->mem[1].internal_addr)
goto out_unmap0; goto out_unmap0;
/* BAR4 */ /* BAR4 */
info->mem[2].name = "Counter/timer chip"; if (mf624_setup_mem(dev, 4, &info->mem[2], "Counter/timer chip"))
info->mem[2].addr = pci_resource_start(dev, 4);
if (!info->mem[2].addr)
goto out_unmap1;
info->mem[2].size = pci_resource_len(dev, 4);
info->mem[2].memtype = UIO_MEM_PHYS;
info->mem[2].internal_addr = pci_ioremap_bar(dev, 4);
if (!info->mem[2].internal_addr)
goto out_unmap1; goto out_unmap1;
info->irq = dev->irq; info->irq = dev->irq;