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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-26 00:41:21 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-26 00:41:21 +0100 |
| commit | ae1d3b974e091b5fc9008bd41bcbdaac68110b62 (patch) | |
| tree | 82e50a66925ced79f59ed4504f6e073ef55edee3 /drivers/pci/pci.c | |
| parent | 586893ebc42943008010b4c210cfc9167df615e5 (diff) | |
| parent | 7a2207a0e1142a9b214b323e43ab2ecc592e5b0e (diff) | |
| download | talos-op-linux-ae1d3b974e091b5fc9008bd41bcbdaac68110b62.tar.gz talos-op-linux-ae1d3b974e091b5fc9008bd41bcbdaac68110b62.zip | |
Merge branch 'for-rmk' of git://github.com/at91linux/linux-2.6-at91 into devel-stable
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 22c9b27fdd8d..56098b3e17c0 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -3284,31 +3284,34 @@ static int pci_set_vga_state_arch(struct pci_dev *dev, bool decode, * @dev: the PCI device * @decode: true = enable decoding, false = disable decoding * @command_bits: PCI_COMMAND_IO and/or PCI_COMMAND_MEMORY - * @change_bridge: traverse ancestors and change bridges + * @change_bridge_flags: traverse ancestors and change bridges + * CHANGE_BRIDGE_ONLY / CHANGE_BRIDGE */ int pci_set_vga_state(struct pci_dev *dev, bool decode, - unsigned int command_bits, bool change_bridge) + unsigned int command_bits, u32 flags) { struct pci_bus *bus; struct pci_dev *bridge; u16 cmd; int rc; - WARN_ON(command_bits & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY)); + WARN_ON((flags & PCI_VGA_STATE_CHANGE_DECODES) & (command_bits & ~(PCI_COMMAND_IO|PCI_COMMAND_MEMORY))); /* ARCH specific VGA enables */ - rc = pci_set_vga_state_arch(dev, decode, command_bits, change_bridge); + rc = pci_set_vga_state_arch(dev, decode, command_bits, flags); if (rc) return rc; - pci_read_config_word(dev, PCI_COMMAND, &cmd); - if (decode == true) - cmd |= command_bits; - else - cmd &= ~command_bits; - pci_write_config_word(dev, PCI_COMMAND, cmd); + if (flags & PCI_VGA_STATE_CHANGE_DECODES) { + pci_read_config_word(dev, PCI_COMMAND, &cmd); + if (decode == true) + cmd |= command_bits; + else + cmd &= ~command_bits; + pci_write_config_word(dev, PCI_COMMAND, cmd); + } - if (change_bridge == false) + if (!(flags & PCI_VGA_STATE_CHANGE_BRIDGE)) return 0; bus = dev->bus; |
