diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/pci.c | 59 | ||||
| -rw-r--r-- | drivers/pci/setup-res.c | 2 |
2 files changed, 5 insertions, 56 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 65ea7d25f69..1b34fc56067 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -222,37 +222,6 @@ pci_find_parent_resource(const struct pci_dev *dev, struct resource *res) } /** - * pci_restore_bars - restore a devices BAR values (e.g. after wake-up) - * @dev: PCI device to have its BARs restored - * - * Restore the BAR values for a given device, so as to make it - * accessible by its driver. - */ -void -pci_restore_bars(struct pci_dev *dev) -{ - int i, numres; - - switch (dev->hdr_type) { - case PCI_HEADER_TYPE_NORMAL: - numres = 6; - break; - case PCI_HEADER_TYPE_BRIDGE: - numres = 2; - break; - case PCI_HEADER_TYPE_CARDBUS: - numres = 1; - break; - default: - /* Should never get here, but just in case... */ - return; - } - - for (i = 0; i < numres; i ++) - pci_update_resource(dev, &dev->resource[i], i); -} - -/** * pci_set_power_state - Set the power state of a PCI device * @dev: PCI device to be suspended * @state: PCI power state (D0, D1, D2, D3hot, D3cold) we're entering @@ -270,7 +239,7 @@ int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t t); int pci_set_power_state(struct pci_dev *dev, pci_power_t state) { - int pm, need_restore = 0; + int pm; u16 pmcsr, pmc; /* bound the state we're entering */ @@ -309,17 +278,14 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) return -EIO; } - pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); - /* If we're in D3, force entire word to 0. * This doesn't affect PME_Status, disables PME_En, and * sets PowerState to 0. */ - if (dev->current_state >= PCI_D3hot) { - if (!(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET)) - need_restore = 1; + if (dev->current_state >= PCI_D3hot) pmcsr = 0; - } else { + else { + pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); pmcsr &= ~PCI_PM_CTRL_STATE_MASK; pmcsr |= state; } @@ -342,22 +308,6 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) platform_pci_set_power_state(dev, state); dev->current_state = state; - - /* According to section 5.4.1 of the "PCI BUS POWER MANAGEMENT - * INTERFACE SPECIFICATION, REV. 1.2", a device transitioning - * from D3hot to D0 _may_ perform an internal reset, thereby - * going to "D0 Uninitialized" rather than "D0 Initialized". - * For example, at least some versions of the 3c905B and the - * 3c556B exhibit this behaviour. - * - * At least some laptop BIOSen (e.g. the Thinkpad T21) leave - * devices in a D3hot state at boot. Consequently, we need to - * restore at least the BARs so that the device will be - * accessible to its driver. - */ - if (need_restore) - pci_restore_bars(dev); - return 0; } @@ -855,7 +805,6 @@ struct pci_dev *isa_bridge; EXPORT_SYMBOL(isa_bridge); #endif -EXPORT_SYMBOL_GPL(pci_restore_bars); EXPORT_SYMBOL(pci_enable_device_bars); EXPORT_SYMBOL(pci_enable_device); EXPORT_SYMBOL(pci_disable_device); diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 589486704ce..84eedc96568 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -26,7 +26,7 @@ #include "pci.h" -void +static void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno) { struct pci_bus_region region; |