diff options
| author | Michal Sojka <sojkam1@fel.cvut.cz> | 2017-03-16 14:50:09 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-08 18:13:28 +0200 |
| commit | a15d2ddba9ee94b252d2737419bff285d6b0e239 (patch) | |
| tree | be6ea8a966c7bd24644f7f02aea3c6d06e2e927a /drivers/uio | |
| parent | uio: Allow handling of non page-aligned memory regions (diff) | |
| download | linux-a15d2ddba9ee94b252d2737419bff285d6b0e239.tar.xz linux-a15d2ddba9ee94b252d2737419bff285d6b0e239.zip | |
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>
Diffstat (limited to 'drivers/uio')
| -rw-r--r-- | drivers/uio/uio_mf624.c | 44 |
1 files changed, 18 insertions, 26 deletions
diff --git a/drivers/uio/uio_mf624.c b/drivers/uio/uio_mf624.c index d1f95a1567bb..8f30fa1af2ab 100644 --- a/drivers/uio/uio_mf624.c +++ b/drivers/uio/uio_mf624.c @@ -127,6 +127,20 @@ static int mf624_irqcontrol(struct uio_info *info, s32 irq_on) 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) { 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 */ /* BAR0 */ - info->mem[0].name = "PCI chipset, interrupts, status " - "bits, special functions"; - info->mem[0].addr = pci_resource_start(dev, 0); - if (!info->mem[0].addr) + if (mf624_setup_mem(dev, 0, &info->mem[0], "PCI chipset, interrupts, status " + "bits, special functions")) 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 */ - info->mem[1].name = "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) + if (mf624_setup_mem(dev, 2, &info->mem[1], "ADC, DAC, DIO")) goto out_unmap0; /* BAR4 */ - info->mem[2].name = "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) + if (mf624_setup_mem(dev, 4, &info->mem[2], "Counter/timer chip")) goto out_unmap1; info->irq = dev->irq; |