diff options
| author | Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> | 2008-05-28 08:01:03 +0200 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-06-10 19:59:53 +0200 |
| commit | ac9c052d10d8d6f46a30cb46c0d6d753997c299f (patch) | |
| tree | 15c252f9a0addcc944aa7e453bf68b174dfc38fe /drivers/pci/hotplug/pciehp.h | |
| parent | pciehp: block signals while waiting for command completion (diff) | |
| download | linux-ac9c052d10d8d6f46a30cb46c0d6d753997c299f.tar.xz linux-ac9c052d10d8d6f46a30cb46c0d6d753997c299f.zip | |
shpchp: check firmware before taking control
Fix the following problems of shpchp driver about getting hotplug
control from firmware.
- The shpchp driver must not control the hotplug controller if it
fails to get control from the firmware. But current shpchp
controls the hotplug controller regardless the result, because it
doesn't check the return value of get_hp_hw_control_from_firmware().
- Current shpchp driver doesn't support _OSC.
The pciehp driver already have the code for evaluating _OSC and OSHP
and shpchp and pciehp can share it. So this patch move that code from
pciehp to acpi_pcihp.c.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/hotplug/pciehp.h')
| -rw-r--r-- | drivers/pci/hotplug/pciehp.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 084b73efacb3..8492fab800cc 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -202,9 +202,13 @@ struct hpc_ops { #include <acpi/actypes.h> #include <linux/pci-acpi.h> -extern int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev); -#define pciehp_get_hp_hw_control_from_firmware(dev) \ - pciehp_acpi_get_hp_hw_control_from_firmware(dev) +static inline int pciehp_get_hp_hw_control_from_firmware(struct pci_dev *dev) +{ + u32 flags = (OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | + OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); + return acpi_get_hp_hw_control_from_firmware(dev, flags); +} + static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev, struct hotplug_params *hpp) { |