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V4L/DVB (8912): cx18: Correct CX23418 PCI configuration settings. 

cx18: Correct CX23418 PCI configuration settings.  The CX23418 doesn't have
I/O space registers, so there was no need to try and turn them on (the card
ignores the attempt to set the bit anyway).  Also removed incorrect config
space register setting that was errantly borrowed from ivtv.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2008-08-29 16:10:21 -03:00 committed by Mauro Carvalho Chehab
parent 0be01004dd
commit 4519064c1c
1 changed files with 2 additions and 7 deletions
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9
drivers/media/video/cx18/cx18-driver.c
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@ -511,9 +511,9 @@ static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev,
return -EIO;
}
/* Check for bus mastering */
/* Enable bus mastering and memory mapped IO for the CX23418 */
pci_read_config_word(dev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
pci_write_config_word(dev, PCI_COMMAND, cmd);
pci_read_config_byte(dev, PCI_CLASS_REVISION, &cx->card_rev);
@ -525,11 +525,6 @@ static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *dev,
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64);
pci_read_config_byte(dev, PCI_LATENCY_TIMER, &pci_latency);
}
/* This config space value relates to DMA latencies. The
default value 0x8080 is too low however and will lead
to DMA errors. 0xffff is the max value which solves
these problems. */
pci_write_config_dword(dev, 0x40, 0xffff);
CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, "
"irq: %d, latency: %d, memory: 0x%lx\n",